[原創]FPGA JTAG工具設計(一)

先來看不同JTAG方案，下載配置QSPI Flash所耗時間

基於FTDI方案，JTAG下載時間為494sec

JTAG chain configuration  2 --------------------------------------------------
Device ID Code IR Length Part Name  4   1       4ba00477           4 arm_dap  5   2       23727093           6 xc7z020  6 --------------------------------------------------
Enabling extended memory access checks for Zynq.  8 Writes to reserved memory are not permitted and reads return 0.  9 To disable this feature, run "debugconfig -memory_access_check disable". 10 --------------------------------------------------
CortexA9 Processor Configuration 12 -------------------------------------
Version.............................0x00000003
User ID.............................0x00000000
No of PC Breakpoints................6
No of Addr/Data Watchpoints.........4
Processor Reset .... DONE 18 SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32 MiB 19 Performing Erase Operation... 20 Erase Operation successful. 21 INFO: [Xicom 50-44] Elapsed time = 34 sec. 22 Performing Program Operation... 23 0%.........................................................................................................................................................................................10%.........................................................................................................................................................................................20%.........................................................................................................................................................................................30%.........................................................................................................................................................................................40%.........................................................................................................................................................................................50%.........................................................................................................................................................................................60%.........................................................................................................................................................................................70%.........................................................................................................................................................................................80%.........................................................................................................................................................................................90%.........................................................................................................................................................................................100%
.........Program Operation successful. 25 INFO: [Xicom 50-44] Elapsed time = 494 sec. 26 Flash Operation Successful

 

基於Cypress方案，JTAG下載時間為674sec

JTAG chain configuration  2 --------------------------------------------------
Device ID Code IR Length Part Name  4   1       4ba00477           4 arm_dap  5   2       23727093           6 xc7z020  6 --------------------------------------------------
Enabling extended memory access checks for Zynq.  8 Writes to reserved memory are not permitted and reads return 0.  9 To disable this feature, run "debugconfig -memory_access_check disable". 10 --------------------------------------------------
CortexA9 Processor Configuration 12 -------------------------------------
Version.............................0x00000003
User ID.............................0x00000000
No of PC Breakpoints................6
No of Addr/Data Watchpoints.........4
Processor Reset .... DONE 18 SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32 MiB 19 Performing Erase Operation... 20 Erase Operation successful. 21 INFO: [Xicom 50-44] Elapsed time = 33 sec. 22 Performing Program Operation... 23 0%.........................................................................................................................................................................................10%.........................................................................................................................................................................................20%.........................................................................................................................................................................................30%.........................................................................................................................................................................................40%.........................................................................................................................................................................................50%.........................................................................................................................................................................................60%.........................................................................................................................................................................................70%.........................................................................................................................................................................................80%.........................................................................................................................................................................................90%............................................................................................................................................................................100%
...Program Operation successful. 25 INFO: [Xicom 50-44] Elapsed time = 674 sec. 26 Flash Operation Successful

 

詳細的燒寫過程：FTDI方案，TotalTime=1455sec，24.25分鍾；采用Cypress方案需要42分鍾

cmd /C program_flash -f \  2 F:\*\bootimage\BOOT.bin \  3 -offset 0 -flash_type qspi_single -blank_check -verify -cable type xilinx_tcf url \  4 TCP:127.0.0.1:3121  
****** Xilinx Program Flash  6 ****** Program Flash v2015.4 (64-bit)  7   **** SW Build 1412921 on Wed Nov 18 09:43:45 MST 2015
    ** Copyright 1986-2015 Xilinx, Inc. All Rights Reserved.  9 Connecting to hw_server @ TCP:127.0.0.1:3121
Connected to hw_server @ TCP:127.0.0.1:3121
Available targets and devices: 12 Target 0 : jsn-JTAG-SMT1-210203367162A 13      Device 0: jsn-JTAG-SMT1-210203367162A-4ba00477-0
JTAG chain configuration 15 --------------------------------------------------
Device ID Code IR Length Part Name 17   1       4ba00477           4 arm_dap 18   2       23727093           6 xc7z020 19 --------------------------------------------------
Enabling extended memory access checks for Zynq. 21 Writes to reserved memory are not permitted and reads return 0. 22 To disable this feature, run "debugconfig -memory_access_check disable". 23 --------------------------------------------------
CortexA9 Processor Configuration 25 -------------------------------------
Version.............................0x00000003
User ID.............................0x00000000
No of PC Breakpoints................6
No of Addr/Data Watchpoints.........4
Processor Reset .... DONE 31 SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32 MiB 32 Performing Erase Operation... 33 Erase Operation successful. 34 INFO: [Xicom 50-44] Elapsed time = 33 sec. 35 Performing Blank Check Operation... 36 0%.......................................................................................................................................................................................................10%.......................................................................................................................................................................................................20%.......................................................................................................................................................................................................30%.......................................................................................................................................................................................................40%.......................................................................................................................................................................................................50%.......................................................................................................................................................................................................60%.......................................................................................................................................................................................................70%.......................................................................................................................................................................................................80%.......................................................................................................................................................................................................90%.......................................................................................................................................................................................................100%
..........INFO: [Xicom 50-44] Elapsed time = 524 sec. 38 Blank Check Operation successful. The part is blank. 39 Performing Program Operation... 40 0%.........................................................................................................................................................................................10%.........................................................................................................................................................................................20%.........................................................................................................................................................................................30%.........................................................................................................................................................................................40%.........................................................................................................................................................................................50%.........................................................................................................................................................................................60%.........................................................................................................................................................................................70%.........................................................................................................................................................................................80%.........................................................................................................................................................................................90%.........................................................................................................................................................................................100%
.........Program Operation successful. 42 INFO: [Xicom 50-44] Elapsed time = 420 sec. 43 Performing Verify Operation... 44 0%.......................................................................................................................................................................................................10%.......................................................................................................................................................................................................20%.......................................................................................................................................................................................................30%.......................................................................................................................................................................................................40%.......................................................................................................................................................................................................50%.......................................................................................................................................................................................................60%.......................................................................................................................................................................................................70%.......................................................................................................................................................................................................80%.......................................................................................................................................................................................................90%.......................................................................................................................................................................................................100%
..........INFO: [Xicom 50-44] Elapsed time = 511 sec. 46 Verify Operation successful. 47 Flash Operation Successful

 在實際調試過程中，下載速度快也能為開發人員節約時間

基於此，根據相關資料DIY一個JTAG+UART方案，在調試zynq時，很多時候板級並沒有UART 外置PHY，JTAG工具鏈自帶UART，也方便FPGA和嵌入式工程師調試單板和系統。