Update boards.txt for stm32f0discovery (MB1034B)

[devweblab]

• Added support for STM32 Discovery board MB1034 B-00
• Added support for BMP (Generic F0)

Instructions for flashing the BMP (incl. VCP) firmware is here: https://github.com/blackmagic-debug/blackmagic/tree/main/src/platforms/stlink

[fpistm]

Hi @devweblab
Thanks for the PR.
It seems not valid as not linker script provided.
You declare only the generic no link with the discovery which would require dedicated entry in Discovery menu and dedicated variant files which allows to defined pins ordering and also dedicated LED, user button, system clock....
For the geric it should also be fine to get a generic clock config.
You can also add in the boards.txt the generic F051R8Hx.

[devweblab]

Hi @fpistm
Ah ok, don't know why it is missing, sorry. It is working with a copy of the linker file from STM32F051R4Tx
https://github.com/stm32duino/Arduino_Core_STM32/blob/main/variants/STM32F0xx/F051R4T/ldscript.ld
Thank you.

[fpistm]

PR is not valid and does not correspond to the description. No update since 2 weeks so close it.
Note: BMP upload method should not be added.

[devweblab]

Closing this PR is ok, thank you.
Can you please explain me why BMP is not added for F0 boards?
The variant STM32F0xx/F051R8(H-T) is already in you repository. If possible please add the genereic F051R8Tx cpu.

[fpistm]

Request added to #722
Yes the folder exists for the variant as we generate all files for all MCU? It still misses a linker script, a generic clock config and to declare it to the boards.txt to declare it.
Generic entries provide 3 default way to flash BMP is specific one, in this case if you want it you should define it on your side using boards.local.txt feature of arduino to override default one: https://arduino.github.io/arduino-cli/0.21/platform-specification/#boardslocaltxt

[devweblab]

Thank you!
Note: For boards >F0 there is the BMP upload. Example for F1:
https://github.com/stm32duino/Arduino_Core_STM32/blob/main/boards.txt#L2629