Huawei LiteOS - WeAct BluePill Plus
This is a build of Huawei LiteOS 5.1.0 for GD32F303 on WeAct BluePill Plus . The demo does the following:
- led blinks
- usb cdc serial port echoes back all characters
- usb hid device moves the mouse in small circles
- Huawei LiteOS console on serial0 (PA9/PA10)
********Hello Huawei LiteOS********
LiteOS Kernel Version : 5.1.0
build data : Aug 17 2021 10:35:22
**********************************
OsAppInit
cpu 0 entering scheduler
app init!
Hello, welcome to liteos demo!
Huawei LiteOS #
Installation
Download pre-built binaries from releases, boot in DFU mode, connect a usb-serial adapter to pin PA9/PA10 and install using
stm32flash -w Huawei_LiteOS.hex /dev/ttyUSB0
Developer notes
Patches are relative to Huawei Liteos
Do a make menuconfig, set target family to GD, target to GD32F303RGT6_BearPi.
(Top) → Targets
Huawei LiteOS Configuration
Family (GD) --->
Target (GD32F303RGT6_BearPi) --->
[ ] Qspi peripherals
[*] Enable Floating Pointer Unit
[*] Enable Access Permission Control
[ ] Enable Flash Patch
Makefile
Create binaries in intel hex format.
Makefile.patch
link script
The linker script is incomplete. This patch is needed to link.
GD32F303RGT6_BearPi.patch
WeAct BluePill-Plus
GD32F303RGT6_BearPi has a LED on pin PB0, WeAct BluePill Plus has a LED on pin PB2. This patch puts the led on pin PB2. Apply this patch if compiling for WeAct BluePill Plus. Skip this patch if compiling for GD32F303RGT6_BearPi.
WeActBluePillPlus.patch
usb device
The GD32F303 usb hardware seems register-compatible with STM32F103. The usb stack used is libusb_stm32, configuration is same as for STM32F103.
libusb_stm32 is a device-only usb stack for stm32 arm, optimized for speed and size. Compare with Ha thach tinyusb.
Compiling
Huawei LiteOS 5.1.0 was compiled using gcc-9.4.0 and gcc-arm-none-eabi-9-2020-q2-update:
export PATH=/opt/xpack-arm-none-eabi-gcc-9.3.1-1.1/bin/:/opt/gcc-9.4.0/bin/:$PATH
make GCCLIB_PATH_32=/opt/xpack-arm-none-eabi-gcc-9.3.1-1.1/lib/gcc/arm-none-eabi/9.3.1/ CXXLIB_PATH_32=/opt/xpack-arm-none-eabi-gcc-9.3.1-1.1/arm-none-eabi/lib/
Firmware
Download firmware with a debugger or using a usb-serial converter.
To download via the serial port, connect a usb serial to the WeAct BluePill Plus:
- RXD to pin A9
- TXD to pin A10
Do not provide power via the USB connector and the +5V pin at the same time, or you risk short-circuit.
Boot in DFU mode:
- press BOOT0 button
- press RESET
- release RESET
- release BOOT0
Download the intel hex file via DFU. On linux:
stm32flash -w out/GD32F303RGT6_BearPi/Huawei_LiteOS.hex /dev/ttyUSB0
Reboot and you should have the LiteOS prompt on the serial port.
not truncated
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