Xilinx Standalone Library Documentation · Xilinx Standalone Library Documentation OS and Libraries Document ... MicroBlaze Processor ... Macro Deﬁnition Documentation

Xilinx Standalone LibraryDocumentation

OS and Libraries DocumentCollection

UG643 (2017.4) December 20, 2017

Table of Contents

Chapter 1: Xilinx OS and Libraries OverviewAbout the Libraries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Library Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Xilinx Standard C Libraries

Chapter 2: Xilinx Standard C LibrariesOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Standard C Library (libc.a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Xilinx C Library (libxil.a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Memory Management Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Arithmetic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23MicroBlaze Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Thread Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Input/Output Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Standalone (v6.5 )

Chapter 3: Xilinx Hardware Abstraction Layer APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Assert APIs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Macro Definition Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Typedef Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30


Variable Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

IO interfacing APIs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32


Definitions for available xilinx platforms . . . . . . . . . . . . . . . . . . . . . . . . 39Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39


Data types for Xilinx Software IP Cores . . . . . . . . . . . . . . . . . . . . . . . . . 40Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40



Customized APIs for memory operations . . . . . . . . . . . . . . . . . . . . . . . . 43Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43


Xilinx software status codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Test utilities for memory and caches . . . . . . . . . . . . . . . . . . . . . . . . . . 44Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44



Chapter 4: Microblaze Processor APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Microblaze Pseudo-asm Macros and Interrupt handling APIs . . . . . . . . . . . . 50Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50



Microblaze exception APIs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Data Structure Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53



Microblaze Processor Cache APIs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55



MicroBlaze Processor FSL Macros . . . . . . . . . . . . . . . . . . . . . . . . . . . 62Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62


Microblaze PVR access routines and macros . . . . . . . . . . . . . . . . . . . . . 64




Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64



Sleep Routines for Microblaze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75


Chapter 5: Cortex R5 Processor APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Cortex R5 Processor Boot Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Cortex R5 Processor MPU specific APIs . . . . . . . . . . . . . . . . . . . . . . . . 78Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78


Cortex R5 Processor Cache Functions . . . . . . . . . . . . . . . . . . . . . . . . . 80Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80


Cortex R5 Time Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86


Cortex R5 Event Counters Functions . . . . . . . . . . . . . . . . . . . . . . . . . . 87Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87


Cortex R5 Processor Specific Include Files . . . . . . . . . . . . . . . . . . . . . . 88Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Chapter 6: ARM Processor Common APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

ARM Processor Exception Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . 89Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89




Chapter 7: Cortex A9 Processor APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Cortex A9 Processor Boot Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Cortex A9 Processor Cache Functions . . . . . . . . . . . . . . . . . . . . . . . . . 97




Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97


Cortex A9 Processor MMU Functions . . . . . . . . . . . . . . . . . . . . . . . . . . 112Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112


Cortex A9 Time Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114


Cortex A9 Event Counter Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 115Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115


PL310 L2 Event Counters Functions . . . . . . . . . . . . . . . . . . . . . . . . . . 116Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116


Cortex A9 Processor and pl310 Errata Support . . . . . . . . . . . . . . . . . . . . 118Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118


Cortex A9 Processor Specific Include Files . . . . . . . . . . . . . . . . . . . . . . 119

Chapter 8: Cortex A53 32-bit Processor APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Cortex A53 32-bit Processor Boot Code . . . . . . . . . . . . . . . . . . . . . . . . 120Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Cortex A53 32-bit Processor Cache Functions . . . . . . . . . . . . . . . . . . . . . 122Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122


Cortex A53 32-bit Processor MMU Handling . . . . . . . . . . . . . . . . . . . . . . 127Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127


Cortex A53 32-bit Mode Time Functions . . . . . . . . . . . . . . . . . . . . . . . . 128Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128


Cortex A53 32-bit Processor Specific Include Files . . . . . . . . . . . . . . . . . . 129

Chapter 9: Cortex A53 64-bit Processor APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Cortex A53 64-bit Processor Boot Code . . . . . . . . . . . . . . . . . . . . . . . . 130Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130




Cortex A53 64-bit Processor Cache Functions . . . . . . . . . . . . . . . . . . . . . 131Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131


Cortex A53 64-bit Processor MMU Handling . . . . . . . . . . . . . . . . . . . . . . 136Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136


Cortex A53 64-bit Mode Time Functions . . . . . . . . . . . . . . . . . . . . . . . . 137Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137


Cortex A53 64-bit Processor Specific Include Files . . . . . . . . . . . . . . . . . . 138

XilMFS Library (v2.3 )

Chapter 10: Overview

Chapter 11: XilMFS Library APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142mfs_init_fs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

mfs_init_genimage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

mfs_change_dir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

mfs_delete_file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

mfs_create_dir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

mfs_delete_dir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

mfs_rename_file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

mfs_exists_file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

mfs_get_current_dir_name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

mfs_get_usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

mfs_dir_open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

mfs_dir_close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

mfs_dir_read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

mfs_file_open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

mfs_file_read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

mfs_file_write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

mfs_file_close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

mfs_file_lseek . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

mfs_ls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148




mfs_ls_r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

mfs_cat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

mfs_copy_stdin_to_file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

mfs_file_copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Chapter 12: Utility Functions

Chapter 13: Library Parameters in MSS File

LwIP 1.4.1 Library (v2_0 )

Chapter 14: IntroductionFeatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Chapter 15: Using lwIPOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Setting up the Hardware System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Setting up the Software System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157Configuring lwIP Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Customizing lwIP API Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Configuring Xilinx Adapter Options . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Configuring Memory Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Configuring Packet Buffer (Pbuf) Memory Options . . . . . . . . . . . . . . . . . . 164

Configuring ARP Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Configuring IP Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Configuring ICMP Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Configuring IGMP Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Configuring UDP Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Configuring TCP Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Configuring DHCP Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Configuring the Stats Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Configuring the Debug Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Chapter 16: LwIP Library APIsOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Raw API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170Xilinx Adapter Requirements when using the RAW API . . . . . . . . . . . . . . . 170




LwIP Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

RAW API Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Socket API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171Xilinx Adapter Requirements when using the Socket API . . . . . . . . . . . . . . 172

Xilkernel/FreeRTOS scheduling policy when using the Socket API . . . . . . . . . 172

Socket API Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Using the Xilinx Adapter Helper Functions . . . . . . . . . . . . . . . . . . . . . . . 173lwip_init . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

xemac_add . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

xemacif_input_thread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

xemacif_input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

xemacpsif_resetrx_on_no_rxdata . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

XilFlash Library (v4.4 )

Chapter 17: OverviewLibrary Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Device Geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177Intel Flash Device Geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

AMD Flash Device Geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Write Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Read Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Erase Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Sector Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Device Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Chapter 18: XilFlash Library APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180XFlash_Initialize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

XFlash_Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

XFlash_DeviceControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

XFlash_Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

XFlash_Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

XFlash_Erase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

XFlash_Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

XFlash_Unlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184




XFlash_IsReady . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185


XilIsf Library (v5.9 )

Chapter 20: OverviewSupported Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Chapter 21: XilIsf Library APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191XIsf_Initialize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

XIsf_GetStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

XIsf_GetStatusReg2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

XIsf_GetDeviceInfo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

XIsf_Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

XIsf_Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

XIsf_Erase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

XIsf_MicronFlashEnter4BAddMode . . . . . . . . . . . . . . . . . . . . . . . . . . 199

XIsf_MicronFlashExit4BAddMode . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

XIsf_SectorProtect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

XIsf_Ioctl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

XIsf_WriteEnable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

XIsf_RegisterInterface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

XIsf_SetSpiConfiguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

XIsf_SetStatusHandler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

XIsf_IfaceHandler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204


XilFFS Library (v3.7 )

Chapter 23: OverviewLibrary Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208




Choosing a File System with an SD Interface . . . . . . . . . . . . . . . . . . . . . 209


XilSecure Library (v2.2 )


Chapter 26: AES-GCMOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216XSecure_AesInitialize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

XSecure_AesDecryptInit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

XSecure_AesDecryptUpdate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

XSecure_AesDecryptData . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

XSecure_AesDecrypt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

XSecure_AesEncryptInit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

XSecure_AesEncryptUpdate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

XSecure_AesEncryptData . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

XSecure_AesReset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

XSecure_AesWaitForDone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

AES-GCM API Example Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Chapter 27: RSAOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226XSecure_RsaInitialize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

XSecure_RsaDecrypt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

XSecure_RsaSignVerification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

XSecure_RsaPublicEncrypt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

XSecure_RsaPrivateDecrypt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

RSA API Example Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Chapter 28: SHA-3Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234XSecure_Sha3Initialize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234




XSecure_Sha3Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

XSecure_Sha3Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

XSecure_Sha3Finish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

XSecure_Sha3Digest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

XSecure_Sha3_ReadHash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

SHA-3 API Example Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

Chapter 29: SHA-2Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239sha_256 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

sha2_starts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

sha2_update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

sha2_finish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240

sha2_hash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240

SHA-2 Example Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240

XilRSA Library (v1.4 )

Chapter 30: OverviewSource Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243

Usage of SHA-256 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243SHA2 API Example Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243

Chapter 31: XilRSA APIsOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244rsa2048_exp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244

rsa2048_pubexp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

sha_256 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

sha2_starts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

sha2_update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

sha2_finish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

XilSKey Library (v6.3 )





Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248Hardware setup for Zynq PL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

Hardware setup for UltraScale or UltraScale+ . . . . . . . . . . . . . . . . . . . . 250

Source Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250

Chapter 33: BBRAM PL APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252

Example Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253XilSKey_Bbram_Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

Chapter 34: Zynq UltraScale+ MPSoC BBRAM PS APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254

Example Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254XilSKey_ZynqMp_Bbram_Program . . . . . . . . . . . . . . . . . . . . . . . . . . 254

XilSKey_ZynqMp_Bbram_Zeroise . . . . . . . . . . . . . . . . . . . . . . . . . . . 255

Chapter 35: Zynq eFUSE PS APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256

Example Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256XilSKey_EfusePs_Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256

XilSKey_EfusePs_Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

XilSKey_EfusePs_ReadStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258

Chapter 36: Zynq UltraScale+ MPSoC eFUSE PS APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Example Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260XilSKey_ZynqMp_EfusePs_CheckAesKeyCrc . . . . . . . . . . . . . . . . . . . . 260

XilSKey_ZynqMp_EfusePs_ReadUserFuse . . . . . . . . . . . . . . . . . . . . . 260

XilSKey_ZynqMp_EfusePs_ReadPpk0Hash . . . . . . . . . . . . . . . . . . . . . 261

XilSKey_ZynqMp_EfusePs_ReadPpk1Hash . . . . . . . . . . . . . . . . . . . . . 261

XilSKey_ZynqMp_EfusePs_ReadSpkId . . . . . . . . . . . . . . . . . . . . . . . . 262

XilSKey_ZynqMp_EfusePs_ReadDna . . . . . . . . . . . . . . . . . . . . . . . . . 262

XilSKey_ZynqMp_EfusePs_ReadSecCtrlBits . . . . . . . . . . . . . . . . . . . . . 262

XilSKey_ZynqMp_EfusePs_Write . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

XilSKey_ZynqMp_EfusePs_WritePufHelprData . . . . . . . . . . . . . . . . . . . 263




XilSKey_ZynqMp_EfusePs_ReadPufHelprData . . . . . . . . . . . . . . . . . . . 264

XilSKey_ZynqMp_EfusePs_WritePufChash . . . . . . . . . . . . . . . . . . . . . 264

XilSKey_ZynqMp_EfusePs_ReadPufChash . . . . . . . . . . . . . . . . . . . . . 265

XilSKey_ZynqMp_EfusePs_WritePufAux . . . . . . . . . . . . . . . . . . . . . . . 265

XilSKey_ZynqMp_EfusePs_ReadPufAux . . . . . . . . . . . . . . . . . . . . . . . 266

XilSKey_Write_Puf_EfusePs_SecureBits . . . . . . . . . . . . . . . . . . . . . . . 266

XilSKey_Read_Puf_EfusePs_SecureBits . . . . . . . . . . . . . . . . . . . . . . . 266

XilSKey_Puf_Debug2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267

XilSKey_Puf_Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267

Chapter 37: eFUSE PL APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269

Example Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269XilSKey_EfusePl_Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269

XilSKey_EfusePl_ReadStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

XilSKey_EfusePl_ReadKey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271

XilSKey_CrcCalculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271

Chapter 38: CRC Calculation APIOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272XilSKey_CrcCalculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272

XilSkey_CrcCalculation_AesKey . . . . . . . . . . . . . . . . . . . . . . . . . . . 273

Chapter 39: User-Configurable ParametersOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274

Zynq User-Configurable PS eFUSE Parameters . . . . . . . . . . . . . . . . . . . . 274

Zynq User-Configurable PL eFUSE Parameters . . . . . . . . . . . . . . . . . . . . 276Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276

MIO Pins for Zynq PL eFUSE JTAG Operations . . . . . . . . . . . . . . . . . . . 277

MUX Selection Pin for Zynq PL eFUSE JTAG Operations . . . . . . . . . . . . . . 278

MUX Parameter for Zynq PL eFUSE JTAG Operations . . . . . . . . . . . . . . . . 278

AES and User Key Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279

Zynq User-Configurable PL BBRAM Parameters . . . . . . . . . . . . . . . . . . . . 280Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280

MUX Parameter for Zynq BBRAM PL JTAG Operations . . . . . . . . . . . . . . . 281

AES and User Key Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

UltraScale or UltraScale+ User-Configurable BBRAM PL Parameters . . . . . . . . 281




Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

AES Keys and Related Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 281

DPA Protection for BBRAM key . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

GPIO Pins Used for PL Master JTAG and HWM Signals . . . . . . . . . . . . . . . 283

GPIO Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

UltraScale or UltraScale+ User-Configurable PL eFUSE Parameters . . . . . . . . 284Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284

GPIO Pins Used for PL Master JTAG Signal . . . . . . . . . . . . . . . . . . . . . 286

GPIO Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287

AES, User Keys and RSA Hash Related Parameters . . . . . . . . . . . . . . . . . 287

Zynq UltraScale+ MPSoC User-Configurable PS eFUSE Parameters . . . . . . . . 290Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290

AES Keys and Related Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 292

User Keys and Related Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 293

PPK0 Keys and Related Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 297

PPK1 Keys and Related Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 298

SPK ID and Related Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . 299

Zynq UltraScale+ MPSoC User-Configurable PS BBRAM Parameters . . . . . . . . 301

Zynq UltraScale+ MPSoC User-Configurable PS PUF Parameters . . . . . . . . . . 301

Chapter 40: Error CodesOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304

PL eFUSE Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304

PS eFUSE Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307

Zynq UltraScale+ MPSoC BBRAM PS Error Codes . . . . . . . . . . . . . . . . . . 312

Chapter 41: Status Codes

Chapter 42: ProceduresZynq eFUSE Writing Procedure Running from DDR as an Application . . . . . . . 314

Zynq eFUSE Driver Compilation Procedure for OCM . . . . . . . . . . . . . . . . . 314

UltraScale eFUSE Access Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 315

UltraScale BBRAM Access Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 315

XilPM Library (v2.2 )

Chapter 43: XilPM APIs




Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Data Structure Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318struct XPm_Notifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318

struct XPm_NodeStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Enumeration Type Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320XPmBootStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

XPmResetAction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

XPmReset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

XPmNotifyEvent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320XPm_InitXilpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

XPm_SuspendFinalize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

XPm_GetBootStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

XPm_RequestSuspend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

XPm_SelfSuspend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

XPm_ForcePowerDown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

XPm_AbortSuspend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

XPm_RequestWakeUp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

XPm_SetWakeUpSource . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

XPm_SystemShutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

XPm_SetConfiguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325

XPm_InitFinalize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325

XPm_InitSuspendCb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326

XPm_AcknowledgeCb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326

XPm_NotifyCb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

XPm_RequestNode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

XPm_ReleaseNode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

XPm_SetRequirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

XPm_SetMaxLatency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

XPm_GetApiVersion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330

XPm_GetNodeStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330

XPm_RegisterNotifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331

XPm_UnregisterNotifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

XPm_GetOpCharacteristic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

XPm_ResetAssert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333

XPm_ResetGetStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333

XPm_MmioWrite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334

XPm_MmioRead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334

Error Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334




Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334


XilFPGA Library (v3.0 )

Chapter 44: OverviewXilfpga library Interface modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

Processor Configuration Access Port (PCAP) . . . . . . . . . . . . . . . . . . . . 338

CSU DMA driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

Xilsecure_library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

Design Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339

Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

Setting up the Software System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341

Enabling Secure Mode in PMUFirmware . . . . . . . . . . . . . . . . . . . . . . . . 341

Chapter 45: XilFPGA APIsOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343

Xilfpga_PL library Interface modules . . . . . . . . . . . . . . . . . . . . . . . . . . 343Initialization & Writing Bit-Stream . . . . . . . . . . . . . . . . . . . . . . . . . . . 344

Function Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344Xfpga_GetConfigReg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344

XFpga_PL_BitSream_Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344

XFpga_PcapStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345

Appendix A: Additional Resources and Legal Notices




Chapter 1

Xilinx OS and Libraries OverviewThe Software Development Kit (SDK) provides a variety of Xilinx software packages, including drivers,libraries, board support packages, and complete operating systems to help you develop a software platform.This document collection provides information on these.Complete documentation for other operating systems can be found in the their respective reference guides.Device drivers are documented along with the corresponding peripheral documentation. The documentation islisted in the following table; click the name to open the document.

Document ID Document Name Summary

UG645 Xilinx Standard C Libraries Describes the software librariesavailable for the embeddedprocessors.

UG647 Standalone Library Referencev6.5

Describes the Standaloneplatform, a single-threaded,simple operating system (OS)platform that provides the lowestlayer of software modules used toaccess processor-specificfunctions. Some typical functionsoffered by the Standaloneplatform include setting up theinterrupts and exceptionssystems, configuring caches, andother hardware specific functions.The Hardware Abstraction Layer(HAL) is described in thisdocument.





UG649 LibXil Memory File System (MFS)Library v2.3

Describes a simple,memory-based file system thatcan reside in RAM, ROM, orFlash memory.

UG650 LwIP 1.4.1 Library v2_0 Describes the SDK port of thethird party networking library,Light Weight IP (lwIP) forembedded processors.

UG651 XilFlash Library v4.4 Describes the functionalityprovided in the flashprogramming library. This libraryprovides access to flash memorydevices that conform to theCommon Flash Interface (CFI)standard. Intel and AMD CFIdevices for some specific partlayouts are currently supported.

UG652 XilIsf Library v5.9 Describes the In System Flashhardware library, which enableshigher-layer software (such as anapplication) to communicate withthe Isf. XilIsf supports the XilinxIn-System Flash and externalSerial Flash memories fromAtmel (AT45XXXD),Spansion(S25FLXX), WinbondW25QXX, and Micron N25QXX.

UG1032 XilFFS Library v3.7 Xilffs is a generic FAT file systemthat is primarily added for usewith SD/eMMC driver. The filesystem is open source and a gluelayer is implemented to link it tothe SD/eMMC driver. A link to thesource of file system is providedin the PDF where the file systemdescription can be found.





UG1125 XilPM Library v2.2 The Zynq UltraScale+ MPSoCpower management framework isa set of power managementoptions, based upon animplementation of the extensibleenergy management interface(EEMI). The power managementframework allows softwarecomponents running acrossdifferent processing units (PUs)on a chip or device to issue orrespond to requests for powermanagement.

UG1189 XilSecure Library v2.2 The XilSecure library providesAPIs to access secure hardwareon the Zynq UltraScale+ MPSoCdevices.

UG1190 XilRSA Library v1.4 The XilRSA library provides APIsto use RSA encryption anddecryption algorithms and SHAalgorithms.

UG1191 XilSKey Library v6.3 The XilSKey library provides aprogramming mechanism foruser-defined eFUSE bits and forprogramming the KEY intobattery-backed RAM (BBRAM) ofZynq SoC, providesprogramming mechanisms foreFUSE bits of UltraScaledevices. The library also providesprogramming mechanisms foreFUSE bits and BBRAM key ofthe Zynq UltraScale+ MPSoCdevices.

UG1229 XilFPGA Library v3.0 The XilFPGA library provides aninterface to the Linux orbare-metal users for configuringthe programmable logic (PL) overPCAP from PS. The library isdesigned for Zynq UltraScale+MPSoC devices to run on top ofXilinx standalone BSPs.




About the LibrariesThe Standard C support library consists of the newlib, libc, which contains the standard C functions suchas stdio, stdlib, and string routines. The math library is an enhancement over the newlib math library,libm, and provides the standard math routines.The LibXil libraries consist of the following:

LibXil Driver (Xilinx device drivers)

XilMFS (Xilinx memory file system)

XilFlash (a parallel flash programming library)

XilIsf (a serial flash programming library)

The Hardware Abstraction Layer (HAL) provides common functions related to register IO, exception, and cache.These common functions are uniform across MicroBlaze and Cortex A9 processors. The Standaloneplatform document provides some processor specific functions and macros for accessing the processor-specificfeatures.Most routines in the library are written in C and can be ported to any platform. User applications mustinclude appropriate headers and link with required libraries for proper compilation and inclusion of requiredfunctionality. These libraries and their corresponding include files are created in the processor \lib and\include directories, under the current project, respectively. The -I and -L options of the compiler beingused should be leveraged to add these directories to the search paths.

Library OrganizationThe organization of the libraries is illustrated in the figure below. As shown, your application can interface withthe components in a variety of ways. The libraries are independent of each other, with the exception of someinteractions. The LibXil drivers and the Standalone form the lowermost hardware abstraction layer. The libraryand OS components rely on standard C library components. The math library, libm.a is also available forlinking with the user applications.

Note

LibXil Drivers are the device drivers included in the software platform to provide an interface to theperipherals in the system. These drivers are provided along with Xilinx SDK and are configured by Libgen.This document collection contains a chapter that briefly discusses the concept of device drivers and theway they integrate with the board support package in Xilinx SDK.

Taking into account some restrictions and implications, which are described in the reference guides for eachcomponent, you can mix and match the component libraries.




Xilinx Standard CLibraries

Xilinx Standard C LibrariesUG645 (2017.3) October 9, 2017



Chapter 2

Xilinx Standard C LibrariesOverviewThe Xilinx Software Development Kit (SDK) libraries and device drivers provide standard C library functions,as well as functions to access peripherals. The SDK libraries are automatically configured based on theMicroprocessor Software Specification (MSS) file. These libraries and include files are saved in the currentproject lib and include directories, respectively. The -I and -L options of mb-gcc are used to add thesedirectories to its library search paths.

Standard C Library (libc.a)The standard C library, libc.a, contains the standard C functions compiled for the MicroBlaze processoror the Cortex A9 processor. You can find the header files corresponding to these C standard functions in the/gnu////include folder, where:

is the Xilinx SDK installation path

is ARM or MicroBlaze

is Solaris (sol), Windows (nt), or Linux (lin)

is arm-xilinx-eabi or microblaze-xilinx-elfThe lib.c directories and functions are:_ansi.h fastmath.h machine/ reent.h stdlib.h utime.h _syslist.h fcntl.h malloc.hregdef.h string.h utmp.h ar.h float.h math.h setjmp.h sys/ assert.hgrp.h paths.h signal.h termios.h ctype.h ieeefp.h process.h stdarg.h time.hdirent.h imits.h pthread.h stddef.h nctrl.h errno.h locale.h pwd.h stdio.hunistd.h

Programs accessing standard C library functions must be compiled as follows:

For MicroBlaze processors:

mb-gcc

For Cortex A9 processors:

arm-xilinx-eabi-gcc

The libc library is included automatically. For programs that access libm math functions, specify the lmoption. For more information on the C runtime library, see MicroBlaze Processor Reference Guide (UG081).




Xilinx C Library (libxil.a)The Xilinx C library, libxil.a, contains the following object files for the MicroBlaze processor embeddedprocessor:

_exception_handler.o

_interrupt_handler.o

_program_clean.o

_program_init.o

Default exception and interrupt handlers are provided. The libxil.a library is included automatically. Programsaccessing Xilinx C library functions must be compiled as follows:

mb-gcc

Memory Management FunctionsThe MicroBlaze processor and Cortex A9 processor C libraries support the standard memory managementfunctions such as malloc(), calloc(), and free(). Dynamic memory allocation provides memory from theprogram heap. The heap pointer starts at low memory and grows toward high memory. The size of the heapcannot be increased at runtime. Therefore an appropriate value must be provided for the heap size at compiletime. The malloc() function requires the heap to be at least 128 bytes in size to be able to allocate memorydynamically (even if the dynamic requirement is less than 128 bytes).

Note

The return value of malloc must always be checked to ensure that it could actually allocate the memoryrequested.

Arithmetic OperationsSoftware implementations of integer and floating point arithmetic is available as library routines in libgcc.afor both processors. The compiler for both the processors inserts calls to these routines in the code produced,in case the hardware does not support the arithmetic primitive with an instruction.

MicroBlaze ProcessorDetails of the software implementations of integer and floating point arithmetic for MicroBlaze processors arelisted below:




Integer ArithmeticBy default, integer multiplication is done in software using the library function __mulsi3. Integer multiplicationis done in hardware if the -mno-xl-soft-mul mb-gcc option is specified.Integer divide and mod operations are done in software using the library functions __divsi3 and __modsi3.The MicroBlaze processor can also be customized to use a hard divider, in which case the div instruction isused in place of the __divsi3 library routine.Double precision multiplication, division and mod functions are carried out by the library functions __muldi3,__divdi3, and __moddi3 respectively.The unsigned version of these operations correspond to the signed versions described above, but are prefixedwith an __u instead of __.

Floating Point ArithmeticAll floating point addition, subtraction, multiplication, division, and conversions are implemented using softwarefunctions in the C library.

Thread SafetyThe standard C library provided with SDK is not built for a multi-threaded environment. STDIO functions likeprintf(), scanf() and memory management functions like malloc() and free() are common examplesof functions that are not thread-safe. When using the C library in a multi-threaded environment, proper mutualexclusion techniques must be used to protect thread unsafe functions.

Modules Input/Output Functions

Input/Output Functions

OverviewThe SDK libraries contains standard C functions for I/O, such as printf and scanf. These functions are largeand might not be suitable for embedded processors. The prototypes for these functions are available in thestdio.h file.

Note

The C standard I/O routines such as printf, scanf, vfprintf are, by default, line buffered. To change thebuffering scheme to no buffering, you must call setvbuf appropriately. For example:

setvbuf (stdout, NULL, _IONBF, 0);

These Input/Output routines require that a newline is terminated with both a CR and LF. Ensure that yourterminal CR/LF behavior corresponds to this requirement.For more information on setting the standard input and standard output devices for a system, see EmbeddedSystem Tools Reference Manual (UG1043). In addition to the standard C functions, the SDK processors libraryprovides the following smaller I/O functions:




Functions void print (char ) void putnum (int) void xil_printf (const char ctrl1,...)

Function Documentation

void print ( char )This function prints a string to the peripheral designated as standard output in the Microprocessor SoftwareSpecification (MSS) file. This function outputs the passed string as is and there is no interpretation of the stringpassed. For example, a \n passed is interpreted as a new line character and not as a carriage return and anew line as is the case with ANSI C printf function.

void putnum ( int )This function converts an integer to a hexadecimal string and prints it to the peripheral designated as standardoutput in the MSS file.

void xil_printf ( const char ctrl1, ... )xil_printf() is a light-weight implementation of printf. It is much smaller in size (only 1 Kb). It does not havesupport for floating point numbers. xil_printf() also does not support printing of long (such as 64-bit)numbers.About format string support:The format string is composed of zero or more directives: ordinary characters (not %), which are copiedunchanged to the output stream; and conversion specifications, each of which results in fetching zero or moresubsequent arguments. Each conversion specification is introduced by the character %, and ends with aconversion specifier.In between there can be (in order) zero or more flags, an optional minimum field width and an optional precision.Supported flag characters are:The character % is followed by zero or more of the following flags:

0 The value should be zero padded. For d, x conversions, the converted value is padded on the left withzeros rather than blanks. If the 0 and - flags both appear, the 0 flag is ignored.

- The converted value is to be left adjusted on the field boundary. (The default is right justification.)Except for n conversions, the converted value is padded on the right with blanks, rather than on the leftwith blanks or zeros. A - overrides a 0 if both are given.

About supported field widthsField widths are represented with an optional decimal digit string (with a nonzero in the first digit) specifying aminimum field width. If the converted value has fewer characters than the field width, it is padded with spaceson the left (or right, if the left-adjustment flag has been given). The supported conversion specifiers are:

d The int argument is converted to signed decimal notation.




l The int argument is converted to a signed long notation.

x The unsigned int argument is converted to unsigned hexadecimal notation. The letters abcdef are usedfor x conversions.

c The int argument is converted to an unsigned char, and the resulting character is written.

s The const char argument is expected to be a pointer to an array of character type (pointer to a string).

Characters from the array are written up to (but not including) a terminating NULL character; if a precisionis specified, no more than the number specified are written. If a precision s given, no null character needbe present; if the precision is not specified, or is greater than the size of the array, the array must contain aterminating NULL character.




Standalone (v6.5 )

Standalone (v6.5 )UG647 (2017.4) December 20, 2017



Chapter 3

Xilinx Hardware Abstraction Layer APIOverviewThis section describes the Xilinx Hardware Abstraction Layer API, These APIs are applicable for all processorssupported by Xilinx.

Modules Assert APIs IO interfacing APIs Definitions for available xilinx platforms Data types for Xilinx Software IP Cores Customized APIs for memory operations Xilinx software status codes Test utilities for memory and caches

Assert APIs

OverviewThe xil_assert.h file contains the assert related functions.

Macros #define Xil_AssertVoid(Expression) #define Xil_AssertNonvoid(Expression) #define Xil_AssertVoidAlways() #define Xil_AssertNonvoidAlways()

Typedefs typedef void( Xil_AssertCallback) (const char8 File, s32 Line)




Functions void Xil_Assert (const char8 File, s32 Line) void XNullHandler (void NullParameter) void Xil_AssertSetCallback (Xil_AssertCallback Routine)

Variables u32 Xil_AssertStatus s32 Xil_AssertWait

Macro Definition Documentation

#define Xil_AssertVoid( Expression )This assert macro is to be used for void functions. This in conjunction with the Xil_AssertWait boolean can beused to accomodate tests so that asserts which fail allow execution to continue.

Parameters

Expression expression to be evaluated. If it evaluates to false, the assert occurs.

Returns

Returns void unless the Xil_AssertWait variable is true, in which case no return is made and an infiniteloop is entered.

#define Xil_AssertNonvoid( Expression )This assert macro is to be used for functions that do return a value. This in conjunction with the Xil_AssertWaitboolean can be used to accomodate tests so that asserts which fail allow execution to continue.

Parameters

Expression expression to be evaluated. If it evaluates to false, the assert occurs.

Returns

Returns 0 unless the Xil_AssertWait variable is true, in which case no return is made and an infinite loopis entered.




#define Xil_AssertVoidAlways( )Always assert. This assert macro is to be used for void functions. Use for instances where an assert shouldalways occur.

Returns


#define Xil_AssertNonvoidAlways( )Always assert. This assert macro is to be used for functions that do return a value. Use for instances where anassert should always occur.

Returns


Typedef Documentation

typedef void( Xil_AssertCallback) (const char8 File, s32 Line)This data type defines a callback to be invoked when an assert occurs. The callback is invoked only whenasserts are enabled


void Xil_Assert ( const char8 File, s32 Line )Implement assert. Currently, it calls a user-defined callback function if one has been set. Then, it potentiallyenters an infinite loop depending on the value of the Xil_AssertWait variable.

Parameters

file filename of the source

line linenumber within File

Returns

None.

Note

None.




void XNullHandler ( void NullParameter )Null handler function. This follows the XInterruptHandler signature for interrupt handlers. It can be used toassign a null handler (a stub) to an interrupt controller vector table.

Parameters

NullParameter arbitrary void pointer and not used.

Returns

None.

Note

None.

void Xil_AssertSetCallback ( Xil_AssertCallback Routine )Set up a callback function to be invoked when an assert occurs. If a callback is already installed, then it will bereplaced.

Parameters

routine callback to be invoked when an assert is taken

Returns

None.

Note

This function has no effect if NDEBUG is set

Variable Documentation

u32 Xil_AssertStatusThis variable allows testing to be done easier with asserts. An assert sets this variable such that a driver canevaluate this variable to determine if an assert occurred.




s32 Xil_AssertWaitThis variable allows the assert functionality to be changed for testing such that it does not wait infinitely. Usethe debugger to disable the waiting during testing of asserts.

IO interfacing APIs

OverviewThe xil_io.h file contains the interface for the general IO component, which encapsulates the Input/Outputfunctions for processors that do not require any special I/O handling.

Functions u16 Xil_EndianSwap16 (u16 Data) u32 Xil_EndianSwap32 (u32 Data) static INLINE u8 Xil_In8 (UINTPTR Addr) static INLINE u16 Xil_In16 (UINTPTR Addr) static INLINE u32 Xil_In32 (UINTPTR Addr) static INLINE u64 Xil_In64 (UINTPTR Addr) static INLINE void Xil_Out8 (UINTPTR Addr, u8 Value) static INLINE void Xil_Out16 (UINTPTR Addr, u16 Value) static INLINE void Xil_Out32 (UINTPTR Addr, u32 Value) static INLINE void Xil_Out64 (UINTPTR Addr, u64 Value) static INLINE u16 Xil_In16LE (UINTPTR Addr) static INLINE u32 Xil_In32LE (UINTPTR Addr) static INLINE void Xil_Out16LE (UINTPTR Addr, u16 Value) static INLINE void Xil_Out32LE (UINTPTR Addr, u32 Value) static INLINE u16 Xil_In16BE (UINTPTR Addr) static INLINE u32 Xil_In32BE (UINTPTR Addr) static INLINE void Xil_Out16BE (UINTPTR Addr, u16 Value) static INLINE void Xil_Out32BE (UINTPTR Addr, u32 Value)





u16 Xil_EndianSwap16 ( u16 Data )Perform a 16-bit endian converion.

Parameters

Data 16 bit value to be converted

Returns

converted value.

u32 Xil_EndianSwap32 ( u32 Data )Perform a 32-bit endian converion.

Parameters

Data 32 bit value to be converted

Returns

converted value.

static INLINE u8 Xil_In8 ( UINTPTR Addr ) [static]Performs an input operation for an 8-bit memory location by reading from the specified address and returningthe Value read from that address.

Parameters

Addr contains the address to perform the input operation at.

Returns

The Value read from the specified input address.

Note

None.




static INLINE u16 Xil_In16 ( UINTPTR Addr ) [static]Performs an input operation for a 16-bit memory location by reading from the specified address and returningthe Value read from that address.

Parameters


Returns


Note

None.

static INLINE u32 Xil_In32 ( UINTPTR Addr ) [static]Performs an input operation for a 32-bit memory location by reading from the specified address and returningthe Value read from that address.

Parameters


Returns


Note

None.

static INLINE u64 Xil_In64 ( UINTPTR Addr ) [static]Performs an input operation for a 64-bit memory location by reading the specified Value to the the specifiedaddress.

Parameters

Addr contains the address to perform the output operation at.

Value contains the Value to be output at the specified address.

Returns

None.




Note

None.

static INLINE void Xil_Out8 ( UINTPTR Addr, u8 Value ) [static]Performs an output operation for an 8-bit memory location by writing the specified Value to the the specifiedaddress.

Parameters



Returns

None.

Note

None.

static INLINE void Xil_Out16 ( UINTPTR Addr, u16 Value ) [static]Performs an output operation for a 16-bit memory location by writing the specified Value to the the specifiedaddress.

Parameters



Returns

None.

Note

None.





Parameters



Returns

None.

Note

None.


Parameters



Returns

None.

Note

None.

static INLINE u16 Xil_In16LE ( UINTPTR Addr ) [static]Perform a little-endian input operation for a 16-bit memory location by reading from the specified address andreturning the value read from that address.

Parameters

Addr contains the address at which to perform the input operation.

Returns

The value read from the specified input address with the proper endianness. The return value has thesame endianness as that of the processor. For example, if the processor is big-endian, the return value isthe byte-swapped value read from the address.




static INLINE u32 Xil_In32LE ( UINTPTR Addr ) [static]Perform a little-endian input operation for a 32-bit memory location by reading from the specified address andreturning the value read from that address.

Parameters


Returns

The value read from the specified input address with the proper endianness. The return value has thesame endianness as that of the processor. For example, if the processor is big-endian, the return value isthe byte-swapped value read from the address.

static INLINE void Xil_Out16LE ( UINTPTR Addr, u16 Value ) [static]Perform a little-endian output operation for a 16-bit memory location by writing the specified value to thespecified address.

Parameters

Addr contains the address at which to perform the output operation.

Value contains the value to be output at the specified address. The value has thesame endianness as that of the processor. For example, if the processor isbig-endian, the byteswapped value is written to the address.

static INLINE void Xil_Out32LE ( UINTPTR Addr, u32 Value ) [static]Perform a little-endian output operation for a 32-bit memory location by writing the specified value to thespecified address.

Parameters


Value contains the value to be output at the specified address. The value has thesame endianness as that of the processor. For example, if the processor isbig-endian, the byteswapped value is written to the address.




static INLINE u16 Xil_In16BE ( UINTPTR Addr ) [static]Perform an big-endian input operation for a 16-bit memory location by reading from the specified address andreturning the value read from that address.

Parameters


Returns

The value read from the specified input address with the proper endianness. The return value has thesame endianness as that of the processor. For example, if the processor is little-endian, the return valueis the byte-swapped value read from the address.

static INLINE u32 Xil_In32BE ( UINTPTR Addr ) [static]Perform a big-endian input operation for a 32-bit memory location by reading from the specified address andreturning the value read from that address.

Parameters


Returns

The value read from the specified input address with the proper endianness. The return value has thesame endianness as that of the processor. For example, if the processor is little-endian, the return valueis the byte-swapped value read from the address.

static INLINE void Xil_Out16BE ( UINTPTR Addr, u16 Value ) [static]Perform a big-endian output operation for a 16-bit memory location by writing the specified value to the specifiedaddress.

Parameters


Value contains the value to be output at the specified address. The value has thesame endianness as that of the processor. For example, if the processor islittle-endian, the byteswapped value is written to the address.




static INLINE void Xil_Out32BE ( UINTPTR Addr, u32 Value ) [static]Perform a big-endian output operation for a 32-bit memory location by writing the specified value to the specifiedaddress.

Parameters


Value contains the value to be output at the specified address. The value has thesame endianness as that of the processor. For example, if the processor islittle-endian, the byteswapped value is written to the address.

Definitions for available xilinx platforms

OverviewThe xplatform_info.h file contains definitions for various available Xilinx platforms.

Functions u32 XGetPlatform_Info () u32 XGetPSVersion_Info () u32 XGet_Zynq_UltraMp_Platform_info ()


u32 XGetPlatform_Info ( )This API is used to provide information about platform.

Parameters

None.

Returns

The information about platform defined in xplatform_info.h




u32 XGetPSVersion_Info ( )This API is used to provide information about PS Silicon version.

Parameters

None.

Returns

The information about PS Silicon version.

u32 XGet_Zynq_UltraMp_Platform_info ( )This API is used to provide information about zynq ultrascale MP platform.

Parameters

None.

Returns

The information about zynq ultrascale MP platform defined in xplatform_info.h

Data types for Xilinx Software IP Cores

OverviewThe xil_types.h file contains basic types for Xilinx software IP cores. These data types are applicable forall processors supported by Xilinx.

Macros #define XIL_COMPONENT_IS_READY #define XIL_COMPONENT_IS_STARTED

New typesNew simple types.

typedef uint8_t u8 typedef uint16_t u16 typedef uint32_t u32 typedef char char8 typedef int8_t s8




typedef int16_t s16 typedef int32_t s32 typedef int64_t s64 typedef uint64_t u64 typedef int sint32 typedef intptr_t INTPTR typedef uintptr_t UINTPTR typedef ptrdiff_t PTRDIFF typedef long LONG typedef unsigned long ULONG typedef void( XInterruptHandler) (void InstancePtr) typedef void( XExceptionHandler) (void InstancePtr) #define __XUINT64__ #define XUINT64_MSW(x) #define XUINT64_LSW(x) #define ULONG64_HI_MASK #define ULONG64_LO_MASK #define UPPER_32_BITS(n) #define LOWER_32_BITS(n)

Macro Definition Documentation

#define XIL_COMPONENT_IS_READYcomponent has been initialized

#define XIL_COMPONENT_IS_STARTEDcomponent has been started

#define XUINT64_MSW( x )Return the most significant half of the 64 bit data type.

Parameters

x is the 64 bit word.

Returns

The upper 32 bits of the 64 bit word.




#define XUINT64_LSW( x )Return the least significant half of the 64 bit data type.

Parameters

x is the 64 bit word.

Returns

The lower 32 bits of the 64 bit word.

#define UPPER_32_BITS( n )return bits 32-63 of a number

Parameters

n : the number we're accessing

Returns

bits 32-63 of number

Note

A basic shift-right of a 64- or 32-bit quantity. Use this to suppress the "right shift count >= width of type"warning when that quantity is 32-bits.

#define LOWER_32_BITS( n )return bits 0-31 of a number

Parameters

n : the number we're accessing

Returns

bits 0-31 of number

Typedef Documentation




typedef uint8_t u8guarded against xbasic_types.h.

typedef char char8xbasic_types.h does not typedef s or u64

typedef void( XInterruptHandler) (void InstancePtr)This data type defines an interrupt handler for a device. The argument points to the instance of the component

typedef void( XExceptionHandler) (void InstancePtr)This data type defines an exception handler for a processor. The argument points to the instance of thecomponent

Customized APIs for memory operations

OverviewThe xil_mem.h file contains prototypes for function related to memory operations. These APIs are applicablefor all processors supported by Xilinx.

Functions void Xil_MemCpy (void dst, const void src, u32 cnt)


void Xil_MemCpy ( void dst, const void src, u32 cnt )This function copies memory from once location to other.

Parameters

dst pointer pointing to destination memory

src pointer pointing to source memory

cnt 32 bit length of bytes to be copied




Xilinx software status codes

OverviewThe xstatus.h file contains Xilinx software status codes. Status codes have their own data type called int.These codes are used throughout the Xilinx device drivers.

Test utilities for memory and caches

OverviewThe xil_testcache.h, xil_testio.h and the xil_testmem.h files contain utility functions to test cacheand memory. Details of supported tests and subtests are listed below.

Cache test : xil_testcache.h contains utility functions to test cache.

I/O test : The Xil_testio.h file contains endian related memory IO functions. A subset of the memorytests can be selected or all of the tests can be run in order. If there is an error detected by a subtest, thetest stops and the failure code is returned. Further tests are not run even if all of the tests are selected.

Memory test : The xil_testmem.h file contains utility functions to test memory. A subset of the memorytests can be selected or all of the tests can be run in order. If there is an error detected by a subtest, thetest stops and the failure code is returned. Further tests are not run even if all of the tests are selected.Following are des

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