Demos on stm8 with SDCC on linux

platforms:

• stm8s-discovery
• stm8l-discovery
• stm8s103f3p6 mini (blue)

setup toolchains

1. install sdcc and stm8flash (the aur of archlinux is just convenient)
2. setup sdcc patched SPL, ST StandPeriphLib, check: https://github.com/gicking/STM8-SPL_SDCC_patch
3. mkdir spl && cd spl
4. ln -s PATH_FOR_PATCHED_STM8X_StdPeriph_Lib .
5. go to example folders, and try make, make flash

Troubleshooting

1. to solve USB device acquring write access problem

libusb: error [_get_usbfs_fd] libusb couldn't open USB device /dev/bus/usb/003/004: Permission denied
libusb: error [_get_usbfs_fd] libusb requires write access to USB device nodes.
Could not open USB device.

create /etc/udev/rules.d/45-stlink.rules with content:

#STLINK V1
ATTRS{idProduct}=="3744", ATTRS{idVendor}=="0483", MODE="666", GROUP="plugdev"

#STLINK V2
ATTRS{idProduct}=="3748", ATTRS{idVendor}=="0483", MODE="666", GROUP="plugdev"

and then reboot the system.

reference:

• https://stackoverflow.com/questions/23312087/error-3-opening-st-link-v2-device
• https://www.ondrovo.com/a/20170107-stm8-getting-started/
• gicking/STM8-SPL_SDCC_patch#6
• https://github.com/vdudouyt/stm8flash