ch32v003 Analogwrite not working PD0,PD1,PA2

[taisirou]

AnalogWrite on PD0, PD1, and PA2 pins does not work.
It looks like a negative pin（ch n pin), but am I using it incorrectly?
I don't know if it's not moving.

[taisirou]

I think this is an addition to known information.

#122 (comment)

PWM SOP16 tested working: PA1/PC0/PC3/PC4 -
PWM not working: PC1/PC2/PC6/PC7 (only on/off); PD7=/RST; PA2: always off

PWM not working: PD0, PD1: always off

[jason3w]

I'm unable to use analogWrite on PC5, PC6, PC7. digitalWrite works fine on those pins, but not analogWrite.
If i understand correctly they should work, right? Thanks!

[maxint-rd]

I'm unable to use analogWrite on PC5, PC6, PC7. digitalWrite works fine on those pins, but not analogWrite. If i understand correctly they should work, right? Thanks!

No, they don't. See quote above. (Didn't have time to do another test)

[jason3w]

Hi Maxint. Thanks for the quick reply.
I've dug deeper and it looks like tim2 is on PD3, PD4, PD7. I've tried that too, but no luck still.
Is PWM (analogWrite) not available at all within this platform?

[maxint-rd]

Yes, PWM is available. as I mentioned in the other post I've successfully used it.
In one project I used it to regulate the speed of a fan. I've tested these to work on the SOP16 package: PA1/PC0/PC3/PC4

Note however that in order to use PWM you need to:

• use the latest release, update it with the latest code of the master branch
• enable the timer module
• (optional) review all PR's that have not been merged yet to see what else you may need

I suggest you first try to use one of these ports: PA1/PC0/PC3/PC4.
Good luck!