TI中文支持网各位老师，请问我的TMDSEVM572X开发板使用SD卡启动后（能够再液晶屏幕上操作matrix），再使用XDS200仿真器时（helloworld工程），在CCS打印出以下信息，
Cortex_M4_IPU1_C0: GEL Output: —>>> AM572x Cortex M4 Startup Sequence In Progress… <<<—
Cortex_M4_IPU1_C0: GEL Output: —>>> AM572x Cortex M4 Startup Sequence DONE! <<<—
Cortex_M4_IPU1_C1: GEL Output: —>>> AM572x Cortex M4 Startup Sequence In Progress… <<<—
Cortex_M4_IPU1_C1: GEL Output: —>>> AM572x Cortex M4 Startup Sequence DONE! <<<—
C66xx_DSP1: GEL Output: —>>> AM572x C66x DSP Startup Sequence In Progress… <<<—
C66xx_DSP1: GEL Output: —>>> AM572x C66x DSP Startup Sequence DONE! <<<—
C66xx_DSP2: GEL Output: —>>> AM572x C66x DSP Startup Sequence In Progress… <<<—
C66xx_DSP2: GEL Output: —>>> AM572x C66x DSP Startup Sequence DONE! <<<—
CortexA15_0: GEL Output: —>>> AM572x Cortex A15 Startup Sequence In Progress… <<<—
CortexA15_0: GEL Output: —>>> AM572x Cortex A15 Startup Sequence DONE! <<<—
CortexA15_1: GEL Output: —>>> AM572x Cortex A15 Startup Sequence In Progress… <<<—
CortexA15_1: GEL Output: —>>> AM572x Cortex A15 Startup Sequence DONE! <<<—
IcePick_D: Error connecting to the target: (Error -2131 @ 0x0) Unable to access device register. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 8.3.0.00003)
当不使用sd卡启动，打印一下信息：
IcePick_D: Error connecting to the target: (Error -2131 @ 0x0) Unable to access device register. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 8.3.0.00003)
请问各位老师这种情况可能是什么原因，谢谢！
321 123：
test connection时显示以下信息：
[Start: Texas Instruments XDS2xx USB Debug Probe_0]
Execute the command:
%ccs_base%/common/uscif/dbgjtag -f %boarddatafile% -rv -o -S integrity
[Result]
—–[Print the board config pathname(s)]————————————
C:\Users\LEGION\AppData\Local\TEXASI~1\CCS\ ccs901\0\0\BrdDat\testBoard.dat
—–[Print the reset-command software log-file]—————————–
This utility has selected a 560/2xx-class product.This utility will load the program 'xds2xxu.out'.The library build date was 'Aug 26 2019'.The library build time was '12:55:28'.The library package version is '8.3.0.00003'.The library component version is '35.35.0.0'.The controller does not use a programmable FPGA.The controller has a version number of '13' (0x0000000d).The controller has an insertion length of '0' (0x00000000).This utility will attempt to reset the controller.This utility has successfully reset the controller.
—–[Print the reset-command hardware log-file]—————————–
This emulator does not create a reset log-file.
—–[An error has occurred and this utility has aborted]——————–
This error is generated by TI's USCIF driver or utilities.
The value is '-233' (0xffffff17).The title is 'SC_ERR_PATH_BROKEN'.
The explanation is:The JTAG IR and DR scan-paths cannot circulate bits, they may be broken.An attempt to scan the JTAG scan-path has failed.The target's JTAG scan-path appears to be brokenwith a stuck-at-ones or stuck-at-zero fault.
[End: Texas Instruments XDS2xx USB Debug Probe_0]
Shine：
回复 321 123:
请问您是按照下面的步骤操作的吗？
Connect after booting from SD card
software-dl.ti.com/…/index_how_to_guides.html如果还是不行的话，试试不要从sd卡启动后去连仿真器，看是仿真器的问题还是SD卡启动后导致不能连ccs? Connect to EVM without a SD card boot image to boot the EVM
321 123：
回复 Shine:
您好，我是按照processorSDK rtos 相应文档的操作进行的。用不用sd卡先启动都试过了，都没有成功接上仿真器（文档里有提到开发板上pmic有启动时间限制，所以想用sd卡先启动开发板再接仿真器），请问像这种情况应该重点检查哪里？谢谢！
yongqing wang：
回复 321 123:
参考这个帖子看看：e2e.ti.com/…/473871
Shine：
回复 321 123:
test connection没通过的话，建议检查JTAG口的电路，测量一下JTAG各个管脚上的信号是否正确？
321 123：
回复 Shine:
您好，我换了一个XDS100V2仿真器test connection是成功的，但是debug还是报错，请问是什么原因？万分感谢！
另外请问8. Launch target configuration using your emulator to connect to AM572X EVM as described in the Processor SDK RTOS Getting Started Guide.
这一步骤是指点击debug吗？
附：
（1）test connection提示信息：
[Start: Texas Instruments XDS100v2 USB Debug Probe_0]
Execute the command:
%ccs_base%/common/uscif/dbgjtag -f %boarddatafile% -rv -o -F inform,logfile=yes -S pathlength -S integrity
[Result]
—–[Print the board config pathname(s)]————————————
C:\Users\LEGION\AppData\Local\TEXASI~1\CCS\ ccs901\0\0\BrdDat\testBoard.dat
—–[Print the reset-command software log-file]—————————–
This utility has selected a 100- or 510-class product.This utility will load the adapter 'jioserdesusb.dll'.The library build date was 'Aug 26 2019'.The library build time was '13:34:49'.The library package version is '8.3.0.00003'.The library component version is '35.35.0.0'.The controller does not use a programmable FPGA.The controller has a version number of '4' (0x00000004).The controller has an insertion length of '0' (0x00000000).This utility will attempt to reset the controller.This utility has successfully reset the controller.
—–[Print the reset-command hardware log-file]—————————–
The scan-path will be reset by toggling the JTAG TRST signal.The controller is the FTDI FT2232 with USB interface.The link from controller to target is direct (without cable).The software is configured for FTDI FT2232 features.The controller cannot monitor the value on the EMU[0] pin.The controller cannot monitor the value on the EMU[1] pin.The controller cannot control the timing on output pins.The controller cannot control the timing on input pins.The scan-path link-delay has been set to exactly '0' (0x0000).
—–[The log-file for the JTAG TCLK output generated from the PLL]———-
There is no hardware for programming the JTAG TCLK frequency.
—–[Measure the source and frequency of the final JTAG TCLKR input]——–
There is no hardware for measuring the JTAG TCLK frequency.
—–[Perform the standard path-length test on the JTAG IR and DR]———–
This path-length test uses blocks of 64 32-bit words.
The test for the JTAG IR instruction path-length succeeded.The JTAG IR instruction path-length is 6 bits.
The test for the JTAG DR bypass path-length succeeded.The JTAG DR bypass path-length is 1 bits.
—–[Perform the Integrity scan-test on the JTAG IR]————————
This test will use blocks of 64 32-bit words.This test will be applied just once.
Do a test using 0xFFFFFFFF.Scan tests: 1, skipped: 0, failed: 0Do a test using 0x00000000.Scan tests: 2, skipped: 0, failed: 0Do a test using 0xFE03E0E2.Scan tests: 3, skipped: 0, failed: 0Do a test using 0x01FC1F1D.Scan tests: 4, skipped: 0, failed: 0Do a test using 0x5533CCAA.Scan tests: 5, skipped: 0, failed: 0Do a test using 0xAACC3355.Scan tests: 6, skipped: 0, failed: 0All of the values were scanned correctly.
The JTAG IR Integrity scan-test has succeeded.
—–[Perform the Integrity scan-test on the JTAG DR]————————
This test will use blocks of 64 32-bit words.This test will be applied just once.
Do a test using 0xFFFFFFFF.Scan tests: 1, skipped: 0, failed: 0Do a test using 0x00000000.Scan tests: 2, skipped: 0, failed: 0Do a test using 0xFE03E0E2.Scan tests: 3, skipped: 0, failed: 0Do a test using 0x01FC1F1D.Scan tests: 4, skipped: 0, failed: 0Do a test using 0x5533CCAA.Scan tests: 5, skipped: 0, failed: 0Do a test using 0xAACC3355.Scan tests: 6, skipped: 0, failed: 0All of the values were scanned correctly.
The JTAG DR Integrity scan-test has succeeded.
[End: Texas Instruments XDS100v2 USB Debug Probe_0]
（2）debug提示信息：
Cortex_M4_IPU1_C0: GEL Output: —>>> AM572x Cortex M4 Startup Sequence In Progress… <<<—Cortex_M4_IPU1_C0: GEL Output: —>>> AM572x Cortex M4 Startup Sequence DONE! <<<—Cortex_M4_IPU1_C1: GEL Output: —>>> AM572x Cortex M4 Startup Sequence In Progress… <<<—Cortex_M4_IPU1_C1: GEL Output: —>>> AM572x Cortex M4 Startup Sequence DONE! <<<—C66xx_DSP1: GEL Output: —>>> AM572x C66x DSP Startup Sequence In Progress… <<<—C66xx_DSP1: GEL Output: —>>> AM572x C66x DSP Startup Sequence DONE! <<<—C66xx_DSP2: GEL Output: —>>> AM572x C66x DSP Startup Sequence In Progress… <<<—C66xx_DSP2: GEL Output: —>>> AM572x C66x DSP Startup Sequence DONE! <<<—CortexA15_0: GEL Output: —>>> AM572x Cortex A15 Startup Sequence In Progress… <<<—CortexA15_0: GEL Output: —>>> AM572x Cortex A15 Startup Sequence DONE! <<<—CortexA15_1: GEL Output: —>>> AM572x Cortex A15 Startup Sequence In Progress… <<<—CortexA15_1: GEL Output: —>>> AM572x Cortex A15 Startup Sequence DONE! <<<—IcePick_D: GEL Output: Ipu RTOS is released from Wait-In-Reset. IcePick_D: GEL Output: Ipu SIMCOP is released from Wait-In-Reset. IcePick_D: GEL Output: IVAHD C66 is released from Wait-In-Reset. IcePick_D: GEL Output: IVAHD ICONT1 is released from Wait-In-Reset. IcePick_D: GEL Output: IVAHD ICONT2 is released from Wait-In-Reset. ARM9_ICONT1: Error connecting to the target: (Error -2062 @ 0x34BC) Unable to halt device. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 8.3.0.00003)
yongqing wang：
回复 321 123:
感谢分享
