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[調(diào)試] JTAG下運行正常，從QSPI或者SD卡啟動則無響應(yīng)，如何查找問題
- 一、問題現(xiàn)象
- 二、用自定義fsbl替代系統(tǒng)默認(rèn)的fsbl
- 1. 新建fsbl_new
- 2. 如果提示缺少xilffs庫
- 3. 使能調(diào)試信息輸出
- 三. 啟動成功和失敗情況下的典型輸出
- 1. JTAG啟動模式: 正常加載
- 2. QSPI啟動模式
- 2.1 正常加載: flash已經(jīng)燒寫正常運行的程序，啟動模式QSPI
- 2.2. QSPI錯誤加載的例子
- 3. SD卡啟動模式
- 3.1 SD正常啟動
- 3.2 沒插卡或者卡檢測失敗
- 3.3 找到文件但是文件錯誤
一、問題現(xiàn)象
用jtag在ide里面調(diào)試運行都正常。
生成boot.bin燒寫到flash后，上電pl done不亮，串口無打印輸出
二、用自定義fsbl替代系統(tǒng)默認(rèn)的fsbl
1. 新建fsbl_new
新建一個app，選擇Zynq FSBL模板。
2. 如果提示缺少xilffs庫
在上面的情況，有可能會提示bsp缺少xilffs庫。
這時候返回到bsp界面，勾選添加缺少的庫，并重新編譯全部工程。再執(zhí)行上面的新建步驟
3. 使能調(diào)試信息輸出
打開新建的工程，找到fsbl_debug.h
可以看到#if defined (FSBL_DEBUG_INFO)這行，
只要我們定義了FSBL_DEBUG_INFO，就會輸出完整調(diào)試信息
因此，在36行增加
#define FSBL_DEBUG_INFO
然后重新編譯fsbl_new
三. 啟動成功和失敗情況下的典型輸出
1. JTAG啟動模式: 正常加載
把啟動模式切換到JTAG，然后運行fsbl_new，結(jié)果如下：
Xilinx First Stage Boot Loader
Release 2020.1 Jul 2 2024-12:27:50
Devcfg driver initialized
Silicon Version 3.1
Boot mode is JTAG
2. QSPI啟動模式
2.1 正常加載: flash已經(jīng)燒寫正常運行的程序，啟動模式QSPI
先燒寫QSPI，然后斷電，把啟動模式切換到JTAG。重新上電，在Vitis里面運行fsbl_new，結(jié)果如下：
Xilinx First Stage Boot Loader
Release 2020.1 Jul 2 2024-12:27:50
Devcfg driver initialized
Silicon Version 3.1
Boot mode is QSPI
Single Flash Information
FlashID=0x1 0x20 0x18
SPANSION 128M Bits
QSPI is in Dual Parallel connection
QSPI Init Done
Flash Base Address: 0xFC000000
Reboot status register: 0x60500000
Multiboot Register: 0x0000C000
Image Start Address: 0x00000000
Partition Header Offset:0x00000C80
Partition Count: 3
Partition Number: 1
Header Dump
Image Word Len: 0x00080B00
Data Word Len: 0x00080B00
Partition Word Len:0x00080B00
Load Addr: 0x00000000
Exec Addr: 0x00000000
Partition Start: 0x000065D0
Partition Attr: 0x00000020
Partition Checksum Offset: 0x00000000
Section Count: 0x00000001
Checksum: 0xFFE776BE
Bitstream
In FsblHookBeforeBitstreamDload function
PCAP:StatusReg = 0x40000F30
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: 0x5802000F
PCAP IMR 0xF8007010: 0xFFFFFFFF
PCAP STATUS 0xF8007014: 0x00000A30
PCAP DMA SRC ADDR 0xF8007018: 0xFC019741
PCAP DMA DEST ADDR 0xF800701C: 0xFFFFFFFF
PCAP DMA SRC LEN 0xF8007020: 0x00080B00
PCAP DMA DEST LEN 0xF8007024: 0x00080B00
PCAP ROM SHADOW CTRL 0xF8007028: 0xFFFFFFFF
PCAP MBOOT 0xF800702C: 0x0000C000
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: 0x000870D0
Partition Attr: 0x00000010
Partition Checksum Offset: 0x00000000
Section Count: 0x00000001
Checksum: 0xFFD72CB8
Application
PCAP:StatusReg = 0x40000F30
PCAP:device ready
PCAP:Clear done
PCAP register dump:
PCAP CTRL 0xF8007000: 0x4C00E07F
PCAP LOCK 0xF8007004: 0x0000001A
PCAP CONFIG 0xF8007008: 0x00000508
PCAP ISR 0xF800700C: 0x00033004
PCAP IMR 0xF8007010: 0xFFFFFFFF
PCAP STATUS 0xF8007014: 0x50000F30
PCAP DMA SRC ADDR 0xF8007018: 0xFC21C341
PCAP DMA DEST ADDR 0xF800701C: 0x00100001
PCAP DMA SRC LEN 0xF8007020: 0x00002002
PCAP DMA DEST LEN 0xF8007024: 0x00002002
PCAP ROM SHADOW CTRL 0xF8007028: 0xFFFFFFFF
PCAP MBOOT 0xF800702C: 0x0000C000
PCAP SW ID 0xF8007030: 0x00000000
PCAP UNLOCK 0xF8007034: 0x757BDF0D
PCAP MCTRL 0xF8007080: 0x30800110DMA Done !
Handoff Address: 0x00100000
In FsblHookBeforeHandoff function
SUCCESSFUL_HANDOFF
FSBL Status = 0x1
2.2. QSPI錯誤加載的例子
給QSPI燒寫一個錯誤的文件。然后運行
Xilinx First Stage Boot Loader
Release 2020.1 Jul 2 2024-12:27:50
Devcfg driver initialized
Silicon Version 3.1
Boot mode is QSPI
Single Flash Information
FlashID=0x1 0x20 0x18
SPANSION 128M Bits
QSPI is in Dual Parallel connection
QSPI Init Done
Flash Base Address: 0xFC000000
Reboot status register: 0xF058200C
Multiboot Register: 0x0000C400 //這里識別錯誤，C400對應(yīng)到flash的末尾了。正常應(yīng)該是C000
Image Start Address: 0x02000000 //這里計算出的偏移地址已經(jīng)超過了flash，肯定無法讀出正常的程序
DATA_ABORT_HANDLER //報錯：數(shù)據(jù)異常
FSBL Status = 0xA304 //在fsbl.h里面可以查到對應(yīng)的宏定義#define EXCEPTION_ID_DATA_ABORT_INT 0xA304 /**< Data Abort Exception */
搜到Multiboot Register，可以搜到下面的代碼，可以看到是由于沒搜到正確的boot，導(dǎo)致MultiBootReg的值不正確。
/** read the multiboot register*/MultiBootReg = XDcfg_ReadReg(DcfgInstPtr->Config.BaseAddr,XDCFG_MULTIBOOT_ADDR_OFFSET);fsbl_printf(DEBUG_INFO,"Multiboot Register: 0x%08lx\r\n",MultiBootReg);/** Compute the image start address*/ImageStartAddress = (MultiBootReg & PCAP_MBOOT_REG_REBOOT_OFFSET_MASK)* GOLDEN_IMAGE_OFFSET;
3. SD卡啟動模式
3.1 SD正常啟動
Xilinx First Stage Boot Loader
Release 2020.1 Jul 2 2024-12:27:50
Devcfg driver initialized
Silicon Version 3.1
Boot mode is SD
SD: rc= 0
SD Init Done //卡初始化完成
Flash Base Address: 0xE0100000
Reboot status register: 0x60500000
Multiboot Register: 0x0000C000
Image Start Address: 0x00000000
Partition Header Offset:0x00000C80
Partition Count: 3
Partition Number: 1
Header Dump //解析到正確的鏡像
Image Word Len: 0x00080B00
Data Word Len: 0x00080B00
Partition Word Len:0x00080B00
Load Addr: 0x00000000
Exec Addr: 0x00000000
Partition Start: 0x000075D0
Partition Attr: 0x00000020
Partition Checksum Offset: 0x00000000
Section Count: 0x00000001
Checksum: 0xFFE766BE
Bitstream
In FsblHookBeforeBitstreamDload function
PCAP:StatusReg = 0x40000F30
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: 0x5802000F
PCAP IMR 0xF8007010: 0xFFFFFFFF
PCAP STATUS 0xF8007014: 0x00000F30
PCAP DMA SRC ADDR 0xF8007018: 0x00100001
PCAP DMA DEST ADDR 0xF800701C: 0xFFFFFFFF
PCAP DMA SRC LEN 0xF8007020: 0x00080B00
PCAP DMA DEST LEN 0xF8007024: 0x00080B00
PCAP ROM SHADOW CTRL 0xF8007028: 0xFFFFFFFF
PCAP MBOOT 0xF800702C: 0x0000C000
PCAP SW ID 0xF8007030: 0x00000000
PCAP UNLOCK 0xF8007034: 0x757BDF0D
PCAP MCTRL 0xF8007080: 0x30800100DMA 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: 0x000880D0
Partition Attr: 0x00000010
Partition Checksum Offset: 0x00000000
Section Count: 0x00000001
Checksum: 0xFFD71CB8
Application
Handoff Address: 0x00100000
In FsblHookBeforeHandoff function
SUCCESSFUL_HANDOFF
FSBL Status = 0x13.2 沒插卡或者卡檢測失敗
Xilinx First Stage Boot Loader
Release 2020.1 Jul 2 2024-12:27:50
Devcfg driver initialized
Silicon Version 3.1
Boot mode is SD
SD: rc= 0
SD: Unable to open file BOOT.BIN: 3SD_INIT_FAIL
FSBL Status = 0xA009This Boot Mode Doesn't Support Fallback
In FsblHookFallback function
3.3 找到文件但是文件錯誤
Xilinx First Stage Boot Loader
Release 2020.1 Jul 2 2024-12:27:50
Devcfg driver initialized
Silicon Version 3.1
Boot mode is SD
SD: rc= 0
SD Init Done
Flash Base Address: 0xE0100000
Reboot status register: 0x6050200A
Multiboot Register: 0x0000C001
Image Start Address: 0x00008000
Partition Header Offset:0xE8BE0070
Partition Count: 14
Invalid Partition Count
Partition Header Load Failed
FSBL Status = 0xA00EThis Boot Mode Doesn't Support Fallback
In FsblHookFallback function