Using JTAG after remapping pins

benderb2 · ‎2010-05-31

Posted on May 31, 2010 at 13:55

epassoni950 · ‎2011-05-17

Posted on May 17, 2011 at 13:53

Hello,

You can try to activate internal Rom Loader with BOOT0=1 and BOOT1=0 before Reset. So your firmware don't start and there is no remap of JTAG lines.

Eric

benderb2 · ‎2011-05-17

Posted on May 17, 2011 at 13:53

Eric,

thank you, your hint has helped us solve the problem.

Bernhard

mcuisp2 · ‎2011-05-17

Posted on May 17, 2011 at 13:53

If you connect nSYSRST out, you needn't control the BOOT0/BOOT1. the programmer like Jlink can avoid the remap by you code by control nSYSRST.

I does so in my handy programmer--EP868, a standalone programmer used for STM32, by SWD port.