Hi @Kris_Ke ,
Does the erase success?
What board do you use, TWR board or you own board?
Regards,
jing
Hi @jingpan
My board and TWR-KM34Z75M both can't connect successfully.
If can't connect successfully, how can I erase the MCU?
Kresse
Hi,
Maybe the problem is not caused by hardware or chip. TWR board has openSDA. It's default application is PEmicro. Can you use openSDA to debug? You also can change openSDA application to jlink.
Please take care of those jumper and power supply.
https://www.nxp.com/webapp/Download?colCode=TWRKM34Z75MUG
Regards,
Jing
Hi Jingpan
The TWR board can use OPENSDA to flash and debug.
So you can see I remove the OPENSDA jump connect and try to use MCU Link to flash.
It just show can't connection succeeded.
Kris
Hi,
I tried to use MCU-Link on TWR board just like you. It works fine. Since opensda can erase/program KM34, could it be the MCU-link problem? You can try to replace openSDA's application to CMSIS-DAP and try again. Please refer to this link to see how to update openSDA firmware.
Regards,
Jing