i test on WCH-Link

step 2

i use flash file to mcu

step3

i click read flash or check mcu info not work

need clear all code only to work

and i can't use debug in MRS

how to fix ?

链接：https://pan.baidu.com/s/1j1uTxtjxIr00xuw8PW_SHg
提取码：j5ty
--来自百度网盘超级会员V2的分享

?链接：https://pan.baidu.com/s/1rNA1VOoKDwOEUO5ZxmpWYA

提取码：1ts9
--来自百度网盘超级会员V2的分享

Hello, please note that the simulation pin has many functions, as shown in the following figure, including initialization of the serial port pin (PD5). This can have an impact on the simulation and should be avoided.

I want to change TX from PD5 to PD6, where is there a tutorial?

i change port not work ?

Hello, please note that the PD6 is multiplexed as a serial port Tx pin. Please follow the following steps to turn on the multiplexed clock,and changes the mapping of the specified pin.