1.问题现象
Error connecting to the target:
(Error -233 @ 0xFFFFFF17)
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.
2,之前调试一直是好的,换了一块板子也是好的。就是当前这块板子连接不上。
3,测量电源、复位,时钟波形都是正常的
4,如图为JTAG的电路图