AnsweredAssumed Answered

ST-link ISOL lost settings

Question asked by Hae Ryon Jung on May 28, 2018
Latest reply on May 29, 2018 by Hae Ryon Jung

Hi All, 


I have tried to connect my custom target board with ST-link/V2 ISOL.

when I run STM32 ST-Link Utility, it looks OK, setting is captured as follows

capture of setting menu of ST link utility at start

after connect 20 pin JTAG cable to my custom board, STM32F103RF with empty flash.(I haven't flash it yet)

few seconds later, setting is changed as follows,

capture of setting menu of ST link utility after error


after error, I have to disconnect and reconnect USB cable connected to PC, and re-run ST-link utility.


Would you please let me know what is wrong with my setting or connection ?

FYI, ST-link/V2 is updated with latest firmware.


Thanks in advance.


Best Regards,

Hae Ryong