Support for WCH CH32F103C8T6 (‘STM32F103C8T6 clone’) MCU?

[lasutek]

Just a question. Will there in a future release be support for the CH32F103C8T6 MCU (used on some of the Blue Pill boards)? The current version of st-flash returns error when trying to write to the MCU -- see below, near the end.

Miscellaneous information

CH32F103C8T6
Nanjing Qinheng Microelectronics Co., Ltd.
WinChipHead (WCH)

Programmer
ST-LINK V2 clone

Using OpenOCD works OK using the same ST-LINK V2 programmer and arm-none-eabi toolchain (GNU Arm Embedded Toolchain 10.3-2023.01)

I believe I have used the latest version of the stlink toolset, both with and without PR "General fixes and improvements #1295". Built and run locally on Linux Mint 21.1 Vera.

Without PR "General fixes and improvements 1295"
st-flash --version
v1.7.0-237-g1bec78c-dirty

With PR "General fixes and improvements 1295"
st-flash --version
v1.7.0-244-g1c6b525-dirty

git clone https://github.com/stlink-org/stlink.git
git fetch origin refs/pull/1295/head:lasutmp
git merge lasutmp
Updating 1bec78c..1c6b525
git branch --delete lasutmp

st-info --probe
Found 1 stlink programmers
version: V2J29S7
serial: 2500260005000059534B524E
flash: 0 (pagesize: 1024)
sram: 20480
chipid: 0x410
dev-type: STM32F1xx_MD

st-flash --flash=64k write main.bin 0x8000000
st-flash 1.7.0-244-g1c6b525-dirty
2023-02-06T21:42:50 INFO common.c: STM32F1xx_MD: 20 KiB SRAM, 0 KiB flash in at least 1 KiB pages.
Forcing flash size: --flash=0x00010000
file main.bin md5 checksum: 55a518096c4615320c627c47147826, stlink checksum: 0x00051640
2023-02-06T21:42:50 INFO common_flash.c: Attempting to write 3496 (0xda8) bytes to stm32 address: 134217728 (0x8000000)
-> Flash page at 0x8000000 erased (size: 0x400)
-> Flash page at 0x8000400 erased (size: 0x400)
-> Flash page at 0x8000800 erased (size: 0x400)
-> Flash page at 0x8000c00 erased (size: 0x400)

2023-02-06T21:42:50 INFO flashloader.c: Starting Flash write for VL/F0/F3/F1_XL
2023-02-06T21:42:50 INFO flash_loader.c: Successfully loaded flash loader in sram
2023-02-06T21:42:50 INFO flash_loader.c: Clear DFSR
2023-02-06T21:42:50 INFO flash_loader.c: Clear CFSR
2023-02-06T21:42:50 INFO flash_loader.c: Clear HFSR
2023-02-06T21:42:51 ERROR flash_loader.c: Flash loader run error
2023-02-06T21:42:51 WARN flash_loader.c: Loader state: R2 0x1000003 R15 0x1000003
2023-02-06T21:42:51 WARN flash_loader.c: MCU state: DHCSR 0x1010009 DFSR 0x0 CFSR 0x0 HFSR 0x0
2023-02-06T21:42:51 ERROR flashloader.c: stlink_flash_loader_run(0x8000000) failed! == -1
2023-02-06T21:42:51 INFO common.c: Go to Thumb mode
stlink_fwrite_flash() == -1

[Nightwalker-87]

@lasutek No, there will be no official support for non STM32-Products.
Please also refer to "Solution to common problems" - Part b) of our tutorial at /doc/tutorial.md for more details.
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