CH32V003: Once write a sketch, can't write a sketch again

[hidori]

Hi,

In CH32V003, PD1 and SWIO are assigned to the same pin, and whether it behaves as GPIO or SWIO is determined by the setting of the built-in register of muc.

In $/system/CH32V00x/USER/system_ch32v00x.c, PD1 is configured to act as gpio as shown below.

    RCC->APB2PCENR |= RCC_AFIOEN;
    AFIO->PCFR1 |= (1<<15);

Therefore, once you write a sketch to CH32V003, you will never be able to write a sketch to it again.

When developing using the Arduino IDE, most people will likely write sketches multiple times, so this behavior is unacceptable.

I would like this corrected.

Thanks.

[maxint-rd]

Hmm.. I'm not sure if I understand your issue.
For details see my comment in PR #203

[maxint-rd]

Hello @hidori , is your issue resolved? If so, please close it...