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在Beaglebone AI板子上焊了个JTAG座子,CCS中连接不上

Other Parts Discussed in Thread:AM5729

JTAG的信号顺序我核对了的,没有问题,调试器是XDS220U,CCS9.0版本,我建了一个Hello word工程,目标器件是AM5729的  C66xx,工程建好后,我启动目标配置,然后点连接测试,结果连不上,报错。Beaglebone AI自带linux操作系统,我用XDS220U连接的时候,操作系统正在运行,会和这个操作系统有关吗

Shine:

请问具体报错信息是什么?是手动connect板子的吗?

,

user18914063:

是的,手动连接的板子
报错信息如下:
[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\Texas Instruments\CCS\ccs930\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 'Dec 13 2020'.
The library build time was '07:38:44'.
The library package version is '9.2.1.00046'.
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]

,

Shine:

请问如果不跑linux操作系统的话,能连接吗?

,

user18914063:

我现在还没法不让OS启动,一上电linux很快就启动了

,

user18914063:

所以我目前猜测有可能是OS的缘故,没法链接调试器

,

Shine:

把boot mode设成no boot模式,应该不会启动linux了。如果no boot模式下,不能连接的话,可能硬件没接好,可以参考下面的帖子。
e2e.ti.com/…/895489

,

user18914063:

那怎么修改BOOT模式啊,应该是在板子上焊接上电阻或者是取下来某个电阻的方式来修改BOOT模式吧,毕竟上面又没有BOOT拨码开关

,

user18914063:

这个AI板子,电路原理图找了好久都没找到

,

Shine:

可以看下面的网站。
github.com/…/beaglebone-ai

看了一下没有拨位开关可以设置。看一下我之前发的帖子,在跑Linux的情况下,应该也能连接CCS,看一下JTAG口有没有接对?
e2e.ti.com/…/895489

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