FreeRTOS CH32V203 Test Report

Test Environment

Operating System Information

• Source Code Link: Community-PIO-CH32V/ch32-pio-projects
• Reference Installation Document:
  • PlatformIO Core: Installation Guide
  • PlatformIO CH32V: Installation Guide

Hardware Information

• CH32V203C8T6-EVT-R0-1v0
• A USB to UART Debugger
• A WCH-Link(E)

Installation Steps

Install PlatformIO Core

You can first check if your package manager includes a package like platformio-core. If not, you can follow the installation script:

curl -fsSL -o get-platformio.py https://raw.githubusercontent.com/platformio/platformio-core-installer/master/get-platformio.py
python3 get-platformio.py

PlatformIO Environment Configuration

Install the CH32V development environment:

pio pkg install -g -p https://github.com/Community-PIO-CH32V/platform-ch32v.git

Add udev rules and apply them (you may need to change GROUP based on the distribution):

curl -fsSL https://raw.githubusercontent.com/platformio/platformio-core/develop/platformio/assets/system/99-platformio-udev.rules | sudo tee /etc/udev/rules.d/99-platformio-udev.rules
cat << EOF | sudo tee -a /etc/udev/rules.d/99-platformio-udev.rules
SUBSYSTEM=="usb", ATTR{idVendor}="1a86", ATTR{idProduct}=="8010", GROUP="plugdev"
SUBSYSTEM=="usb", ATTR{idVendor}="4348", ATTR{idProduct}=="55e0", GROUP="plugdev"
SUBSYSTEM=="usb", ATTR{idVendor}="1a86", ATTR{idProduct}=="8012", GROUP="plugdev"
EOF
sudo udevadm control --reload-rules
sudo udevadm trigger

Add user group:

• For Debian-based systems:

sudo usermod -a -G dialout $USER
sudo usermod -a -G plugdev $USER

• For Arch-based systems:

sudo usermod -a -G uucp $USER
sudo usermod -a -G lock $USER

Prepare Project Repository

Clone the relevant repositories:

git clone https://github.com/Community-PIO-CH32V/platform-ch32v.git

Code Compilation

Compile the code using pio:

cd platform-ch32v/examples/blinky-freertos
pio run

Flashing Image

Once the WCH-Link(E) is connected to the SWD debug port, flash the image using pio:

pio run --target upload

If the flashing fails, you can also try manually specifying:

pio run -e your_board --target upload

Add Development Board Series

Skip this if you are using the K8T6 series This is because other chips are not in the default chip list, so we need to add them manually. You can find the corresponding json name for your board in platform-ch32v/boards.

cat << EOF | tee -a platformio.ini
[env:your_board]
board = your_board
EOF

Common Issues

• Error: error writing to flash at address 0x00000000 at offset 0x00000000
  • This is due to a low firmware version of WCH-Link (refer to important-notices).
  • Please use the WCH-Link Utility once connected to W2 with CH-Link to update automatically. This tool is currently only available for Windows
• Error: Read-Protect Status Currently Enabled
  • This is because the chip has write protection enabled. In Windows, you can disable it using the WCH-Link Utility, and in Linux, you can use OpenOCD:

cd ~/.platformio/packages/tool-openocd-riscv-wch/bin
./openocd -f wch-riscv.cfg -c init -c halt -c "flash protect wch_riscv 0 last  off " -c exit
cd -

Logging into the System

Connect to the development board via serial port.

Expected Results

The system should boot properly, and information should be viewable through the onboard serial port.

Actual Results

The system booted successfully, and information is viewable through the onboard serial port.

Boot Log

Screen recording (from compilation to startup):

SystemClk:96000000
DeviceID: 00000510
FreeRTOS Kernel Version:V10.4.6
task2 entry
task1 entry
task1 entry
task2 entry
task1 entry
task1 entry

Test Criteria

Successful: The actual result matches the expected result.

Failed: The actual result does not match the expected result.

Test Conclusion

Test successful.