FreeRTOS CH32V307 Test Report

Test Environment

Operating System Information

• Source Code Link: https://github.com/Community-PIO-CH32V/ch32-pio-projects
• Reference Installation Document:
  • PlatformIO Core: https://docs.platformio.org/en/latest/core/installation/index.html
  • PlatformIO CH32V: https://pio-ch32v.readthedocs.io/en/latest/installation.html

Hardware Information

• CH32V307V-EVT-R2-1v1
• A USB to UART Debugger
• A WCH-Link(E)

Installation Steps

Install PlatformIO Core

You can first check if the package manager includes a package like platformio-core. If not, you can install it using 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 CH32V development environment:

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

Add udev rules and apply (may need to change GROUP according to 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 groups:

• 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

After confirming the connection of WCH-Link(E) to the SWD debug port, manually specify the development board using pio and burn the image:

pio run -e your_board --target upload

Common Issues

• Error: error writing to flash at address 0x00000000 at offset 0x00000000
  • This is due to the low firmware version of WCH-Link. (See important-notices).
  • Please use WCH-Link Utility to connect once with WCH-Link to update automatically. This tool currently only has a Windows version.
• Error: Read-Protect Status Currently Enabled
  • This is caused by the write protection enabled on the chip. On Windows, we can use WCH-Link Utility to remove the protection, and on Linux, OpenOCD can be used:

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 starts normally, and information can be viewed via the onboard serial port.

Actual Results

The system starts normally, and information can be viewed via the onboard serial port.

Boot Log

Screen recording (from compilation to startup):

SystemClk:96000000
ChipID: 30700528
FreeRTOS Kernel Version:V10.4.6
task2 entry
task1 entry
task1 entry
task2 entry
task1 entry
task1 entry
task2 entry
task1 entry
task1 entry
task2 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.