求教，之前一直好好的，现在jtag无法下载程序，然后通过ch340g却能下载，怎么回事啊

liulili

JLink info:
------------
DLL: V4.15n, compiled Jun 18 2010 19:55:09
Firmware: J-Link ARM V8 compiled Sep 22 2014 23:26:43
Hardware: V8.00
S/N : 286370559 
Feature(s) : RDI,FlashDL,FlashBP,JFlash 
 
**JLink Warning: No matching core found.
* JLink Info: SYSRESETREQ has confused core. Trying to reconnect and use VECTRESET.
**JLink Warning: Failed to reset CPU. VECTRESET has confused core.
* JLink Info: CPU core locked up
* JLink Info: CPU halted
* JLink Info: Core is locked-up, trying to disable WDT.
* JLink Info: CPU core locked up
* JLink Info: CPU halted
* JLink Info: Core is locked-up, trying to disable WDT.
* JLink Info: CPU core locked up
* JLink Info: CPU halted
* JLink Info: CPU core locked up
* JLink Info: CPU halted
**JLink Warning: S_RESET_ST not cleared
* JLink Info: SYSRESETREQ has confused core. Trying to reconnect and use VECTRESET.
**JLink Warning: Failed to reset CPU. VECTRESET has confused core.
* JLink Info: CPU core locked up
* JLink Info: CPU halted
* JLink Info: Core is locked-up, trying to disable WDT.
* JLink Info: CPU core locked up
* JLink Info: CPU halted
* JLink Info: Core is locked-up, trying to disable WDT.
* JLink Info: CPU core locked up
* JLink Info: CPU halted
* JLink Info: CPU core locked up
* JLink Info: CPU halted
**JLink Warning: S_RESET_ST not cleared
***JLink Error: Parity error (Data = 0xFFFFFFFF, ReceivedParity = 1)
***JLink Error: Could not start CPU core. (ErrorCode: -1)


这个是提示的信息
求交

liulili

我通过ch340g的东西能够下载程序，而且程序也是正常运行的，然后boot0和1都直接连到地上面的
这个是直接连接的时候jtagcommand显示的东西

正点原子

检查下硬件连接是否正常吧。

八度空间

没试过楼主这样的

liulili

回复【3楼】正点原子:
---------------------------------
想问一下怎么检查硬件连接啊，是把jtag拆开吗？

liulili

回复【4楼】八度空间:
---------------------------------
我也不知道为什么，要爆炸了T_T

八度空间

回复【5楼】liulili:
---------------------------------
jtag与板子链接