forked from Embedded_Projects/CH32V307_Template
1.0 KiB
1.0 KiB
Template for WCH CH32V30x series MCU
How to use
- Write your own CMake toolchain file (see
riscv64-elf.cmakefor example) - Configure project and build as usual. (see below for a simple test)
Sample usage
mkdir build && cd build
cmake -DCMAKE_TOOLCHAIN_FILE=riscv64-elf.cmake ..
make -j${nprocs}
Notes
Startup files
There are two versions of startup assembly files, located at
BSP/Startup/startup_ch32v30x_D8.SBSP/Startup/startup_ch32v30x_D8C.S
The first file is used for CH32V303 devices, which lacks of the following peripherals:
- Ethernet
- CAN2
- USBHS
- DVP
*** Change the startup file to the correct version for the hardware in use. ***
Compilers
These MCUs uses something called "RISC-V4F" core with Chinese documentation provided:
- Implemented RV32IMAFC ABI
Here is the list of features proprietary or incompatible with upstream toolchain:
- Fast IRQ handlers: uses a special attribute of
interrupt, which value isWCH-Interrupt-fast