1、軟件版本vivado202001。

2、其中程序的源文件都是拷貝過來的只是稍作修改，對其中的操作步驟做細化分析，參考文檔UG585
https://blog.csdn.net/weixin_41922484/article/details/104037513

3、串口打印FSBL中啟動信息。
只需要在以下位置的的fsbl_debug.h中，添加一個宏定義即可。

#define FSBL_DEBUG_INFO

4、新建兩個app
hello_test1.c

#include
#include "platform.h"
#include "xil_printf.h"
#include "xil_io.h"
#include "sleep.h"

#define PSS_RST_CTRL_REG 0xF8000200 //PSS_RST_CTRL寄存器，絕對地址，
#define SLCR_UNLOCK_ADDR 0xF8000008 //SLCR_UNLOCK寄存器，絕對地址，
#define UNLOCK_KEY 0xDF0D //使能碼
#define PSS_RST_MASK 0x01 //復位碼

void PsSoftwareReset(void)
{
Xil_Out32(SLCR_UNLOCK_ADDR, UNLOCK_KEY); //寫使能
Xil_Out32(PSS_RST_CTRL_REG, PSS_RST_MASK); //復位
}

#define XDCFG_MULTIBOOT_ADDR_OFFSET_REG 0xF800702C //MULTIBOOT寄存器，絕對地址，
#define XDCFG_UNLOCK_OFFSET_ADDR 0xF8007034 //XDCFG_UNLOCK_寄存器，絕對地址，
#define UNLOCK_XDCFG_KEY 0x757BDF0D //使能碼

#define APP1_LOCATION 0
#define APP2_LOCATION 128

void ModifyMultiBoot(void)
{
Xil_Out32(XDCFG_UNLOCK_OFFSET_ADDR , UNLOCK_XDCFG_KEY ); //寫使能
Xil_Out32(XDCFG_MULTIBOOT_ADDR_OFFSET_REG , APP2_LOCATION ); //更改MULTIBOOT
}

int main()
{
init_platform();
print("111111111111111111111111111111111111111\r\n");
sleep(5);
ModifyMultiBoot();
PsSoftwareReset();
cleanup_platform();
return 0;
}

hello_test2.c

#include
#include "platform.h"
#include "xil_printf.h"
#include "xil_io.h"
#include "sleep.h"

#define PSS_RST_CTRL_REG 0xF8000200 //PSS_RST_CTRL寄存器，絕對地址，
#define SLCR_UNLOCK_ADDR 0xF8000008 //SLCR_UNLOCK寄存器，絕對地址，
#define UNLOCK_KEY 0xDF0D //使能碼
#define PSS_RST_MASK 0x01 //復位碼

void PsSoftwareReset(void)
{
Xil_Out32(SLCR_UNLOCK_ADDR, UNLOCK_KEY); //寫使能
Xil_Out32(PSS_RST_CTRL_REG, PSS_RST_MASK); //復位
}

#define XDCFG_MULTIBOOT_ADDR_OFFSET_REG 0xF800702C //MULTIBOOT寄存器，絕對地址，
#define XDCFG_UNLOCK_OFFSET_ADDR 0xF8007034 //XDCFG_UNLOCK_寄存器，絕對地址，
#define UNLOCK_XDCFG_KEY 0x757BDF0D //使能碼

#define APP1_LOCATION 0
#define APP2_LOCATION 128

void ModifyMultiBoot(void)
{
Xil_Out32(XDCFG_UNLOCK_OFFSET_ADDR , UNLOCK_XDCFG_KEY ); //寫使能
Xil_Out32(XDCFG_MULTIBOOT_ADDR_OFFSET_REG , APP2_LOCATION ); //更改MULTIBOOT
}

int main()
{
init_platform();
print("222222222222222222222222222222222\r\n");
sleep(5);
ModifyMultiBoot();
PsSoftwareReset();
cleanup_platform();
return 0;
}

5、分別生成bin文件，且需要注意生成的bin文件大小，因為是分段燒寫flash，第一個bin與第二個bin的間隔要比第一個bin的文件要大，且間隔為32KB的整數倍，此次實驗中，生成的bin都是2.2MB，所以把第二個的bin起始地址設置為128*32KB。

6、在JTAG模式下燒寫FLASH

7、在QSPI模式下啟動
串口打印輸出
[15:07:38.243]收←◆
Xilinx First Stage Boot Loader
Release 2020.1 Mar 24 2021-03:07:57
Devcfg driver initialized
Silicon Version 3.1
Boot mode is QSPI
Single Flash Information
FlashID=0xEF 0x40 0x19
WINBOND 256M Bits
QSPI is in single flash connection
QSPI is in 4-bit mode
QSPI Init Done
Flash Base Address: 0xFC000000
Reboot status register: 0x60480000
Multiboot Register: 0x0000C000
Image Start Address: 0x00000000
Partition Header Offset:0x00000C80
Partition Count: 3
Partition Number: 1
Header Dump
Image Word Len: 0x0007F2E8
Data Word Len: 0x0007F2E8
Partition Word Len:0x0007F2E8
Load Addr: 0x00000000
Exec Addr: 0x00000000
Partition Start: 0x000065D0
Partition Attr: 0x00000020
Partition Checksum Offset: 0x00000000
Section Count: 0x00000001
Checksum: 0xFFE7BF06
Bitstream
In FsblHookBeforeBitstreamDload function

[15:07:38.610]收←◆P
[15:07:38.640]收←◆CAP:StatusReg = 0x40000A30
PCAP:device ready
PCAP:Clear done
Level Shifter Value = 0xA
Devcfg Status register = 0x40000A30
PCAP:Fabric is Initialized done
PCAP register dump:
PCAP CTRL 0xF8007000: 0x4C00E07F
PCAP LOCK 0xF8007004: 0x0000001A
PCAP CONFIG 0xF8007008: 0x00000508
PCAP ISR 0xF800700C: 0x0802000B
PCAP IMR 0xF8007010: 0xFFFFFFFF
PCAP STATUS 0xF8007014: 0x50000F30
PCAP DMA SRC ADDR 0xF8007018: 0x00100001
PCAP DMA DEST ADDR 0xF800701C: 0xFFFFFFFF
PCAP DMA SRC LEN 0xF8007020: 0x0007F2E8
PCAP DMA DEST LEN 0xF8007024: 0x0007F2E8
PCAP ROM SHADOW CTRL 0xF8007028: 0xFFFFFFFF
PCAP MBOOT 0xF800702C: 0x0000C000
PCAP SW ID 0xF8007030: 0x00000000
PCAP U
[15:07:38.694]收←◆NLOCK 0xF8007034: 0x757BDF0D
PCAP MCTRL 0xF8007080: 0x30800100

DMA Done !

FPGA Done !
In FsblHookAfterBitstreamDload function
Partition Number: 2
Header Dump
Image Word Len: 0x00002002
Data Word Len: 0x00002002
Partition Word Len:0x00002002
Load Addr: 0x00100000
Exec Addr: 0x00100000
Partition Start: 0x000858C0
Partition Attr: 0x00000010
Partition Checksum Offset: 0x00000000
Section Count: 0x00000001
Checksum: 0xFFD744C8
Application
Handoff Address: 0x00100000
In FsblHookBeforeHandoff function
SUCCESSFUL_HANDOFF
FSBL Status = 0x1
11111111111111111111111111111111111111111

[15:07:43.911]收←◆
Xilinx First Stage Boot Loader
Release 2020.1 Mar 24 2021-03:07:57
Devcfg driver initialized
Silicon Version 3.1
Boot mode is QSPI
Single Flash Information
FlashID=0xEF 0x40 0x19
WINBOND 256M Bits
QSPI is in single flash connection
QSPI is in 4-bit mode
QSPI Init Done
Flash Base Address: 0xFC000000
Reboot status register: 0x60480000
Multiboot Register: 0x0000C080
Image Start Address: 0x00400000
Partition Header Offset:0x00400C80
Partition Count: 3
Partition Number: 1
Header Dump
Image Word Len: 0x0007F2E8
Data Word Len: 0x0007F2E8
Partition Word Len:0x0007F2E8
Load Addr: 0x00000000
Exec Addr: 0x00000000
Partition Start: 0x000065D0
Partition Attr: 0x00000020
Partition Checksum Offset: 0x00000000
Section Count: 0x00000001
Checksum: 0xFFE7BF06
Bitstream
In FsblHookBeforeBitstreamDload function

[15:07:44.276]收←◆PCAP:StatusReg = 0x40000A30
PCAP:device ready
PCAP:Clear done
Level Shifter Value = 0xA
Devcfg Status register = 0x40000A30
PCAP:Fabric is Initialized done
PCAP register dump:
PCAP CTRL 0xF8007000: 0x4C00E07F
PCAP LOCK 0xF8007004: 0x0000001A
PCAP CONFIG 0xF8007008: 0x00000508
PCAP ISR 0xF800700C: 0x0802000B
PCAP IMR 0xF8007010: 0xFFFFFFFF
PCAP STATUS 0xF8007014: 0x50000F30
PCAP DMA SRC ADDR 0xF8007018: 0x00100001
PCAP DMA DEST ADDR 0xF800701C: 0xFFFFFFFF
PCAP DMA SRC LEN 0xF8007020: 0x0007F2E8
PCAP DMA DEST LEN 0xF8007024: 0x0007F2E8
PCAP ROM SHADOW CTRL 0xF8007028: 0xFFFFFFFF
PCAP MBOOT 0xF800702C: 0x0000C080
PCAP SW ID 0xF8007030: 0x00000000
PCAP UNLOCK 0xF8007034: 0x757BDF0D
PCAP MCTRL 0xF8007080: 0x30800100

DMA Done !

FPGA Done !
In FsblHookAfterBitstreamDload function
Partition Number: 2
Header Dump
Image Word Len: 0x00002002
Data Word Len: 0x00002002
Partition Word Len:0x00002002
Load Addr: 0x00100000
Exec Addr: 0x00100000
Partition Start: 0x000858C0
Partition Attr: 0x00000010
Partition Checksum Offset: 0x00000000
Section Count: 0x00000001
Checksum: 0xFFD744C8
Application
Handoff Address: 0x00100000
In FsblHookBeforeHandoff function
SUCCESSFUL_HANDOFF
FSBL Status = 0x1
22222222222222222222222222222222222222222

測試成功。

審核編輯：符乾江