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核心板上电正常,仿真器驱动安装正确,使用ccs进行test connection出现如下错误:
[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\ADMINI~1\AppData\Local\TEXASI~1\
CCS\ccs1010\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 'May 7 2020'.
The library build time was '20:23:44'.
The library package version is '9.2.0.00002'.
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 broken
with a stuck-at-ones or stuck-at-zero fault.
[End: Texas Instruments XDS2xx USB Debug Probe_0]
target configuration 设置如下:
用示波器看jtag各引脚波形,tdi, tms, tck均正常 但是tdo信号一直为高。
请问可能是什么问题?
我看网上说emu0和emu1需要做上拉,我自己开发的地板这两个脚没有做上拉,可能是这个问题吗?tl6678核心板上这两个脚有没有做上拉呢?
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