Hi,
Serial generic CDC supersede.
After upload code Windows says "unknown device".
I'm trying on three bluepills, always that same..
Any ideas?
Thank's.
bluepill STM32F103C8 - cdc usb not working
Re: bluepill STM32F103C8 - cdc usb not working
make sure you have a STM32F103 C8 (or cb) suffix chip and not a C6 chip. There are a lot of C6 chips floating in the online "flea markets".
C6 is likely not enough to run stm32duino properly.
and you have to select usb-cdc-serial from the menu
https://github.com/stm32duino/wiki/wiki
oh and you need a st-link dongle
https://www.adafruit.com/product/2548
https://www.st.com/en/development-tools/st-link-v2.html
https://octopart.com/2548-adafruit+indu ... 88022?r=sp
you can use a usb-uart (3.3v) dongle and set boot0 for that, but if you are not familiar with this, you may like to use a st-link instead
you would also need stm32cube programmer
https://www.st.com/en/development-tools ... eprog.html
and do review the wiki
https://github.com/stm32duino/wiki/wiki
if you are new to these the "preferred" boards are like
Nucleo STM32F401RE and Nucleo STM32F411RE
https://github.com/stm32duino/Arduino_C ... -64-boards
those have a quite a lot of resources and run pretty fast
C6 is likely not enough to run stm32duino properly.
and you have to select usb-cdc-serial from the menu
https://github.com/stm32duino/wiki/wiki
oh and you need a st-link dongle
https://www.adafruit.com/product/2548
https://www.st.com/en/development-tools/st-link-v2.html
https://octopart.com/2548-adafruit+indu ... 88022?r=sp
you can use a usb-uart (3.3v) dongle and set boot0 for that, but if you are not familiar with this, you may like to use a st-link instead
you would also need stm32cube programmer
https://www.st.com/en/development-tools ... eprog.html
and do review the wiki
https://github.com/stm32duino/wiki/wiki
if you are new to these the "preferred" boards are like
Nucleo STM32F401RE and Nucleo STM32F411RE
https://github.com/stm32duino/Arduino_C ... -64-boards
those have a quite a lot of resources and run pretty fast
Re: bluepill STM32F103C8 - cdc usb not working
"Unknown device" means that you don't have driver for this device in system.
Check VID and PID (vendor and product ID).
Bluepill with CDC enabled should identify as: VID: 0483, PID: 5740.
Check VID and PID (vendor and product ID).
Bluepill with CDC enabled should identify as: VID: 0483, PID: 5740.