zoobab/wchisp

WCH ISP Tool in Rust

wchisp - WCH ISP Tool in Rust

Command-line implementation of the WCHISPTool in Rust, by the ch32-rs team.

This tool is a work in progress.

• NOTE: CH32V003 does not have a USB ISP interface, use WCH-Link to program
• NOTE: This tool is for USB ISP, not using with WCH-Link
  • Currently I'm working on a WCH-Link implementation

TODOs

• chip detection, identification
  • wchisp probe
  • wchisp info
• flash and verify code
  • ELF parsing
  • hex, bin, ihex support
  • skip erasing, verifying, resetting
• chip config register dump
  • wchisp config
  • works for most chips, but not all. Issues and PRs are welcomed
• write config registers
  • reset config registers to default(unprotected, debug-enabled state)
  • write config with friendly register names? like wchisp config set SRAM_CODE_MODE=1 ...
• EEPROM dump
• EEPROM erase
• EEPROM write
• select from multiple chips(using -d to select device index) wchisp -d 0 info
• ISP via UART or Net

Installing

# install libusb for your platform
# macOS
> brew install libusb
# Ubuntu
> sudo apt install libusb-1.0-0-dev

# install wchisp
> cargo install wchisp --git https://github.com/ch32-rs/wchisp
# or use
> cargo install wchisp --force

Note for Windows

If you are using Windows, you need to install the WinUSB driver for your device. See Zadig.

NOTE: This is not compatible with the Official WCH driver you installed with IDE.

Note for Linux

If you are using Linux, you need to set the udev rules for your device.

# /etc/udev/rules.d/50-wchisp.rules
SUBSYSTEM=="usb", ATTRS{idVendor}=="4348", ATTRS{idProduct}=="55e0", MODE="0666"
# or replace MODE="0666" with GROUP="plugdev" or something else

Usage

> wchisp info
14:51:24 [INFO] Chip: CH32V307VCT6[0x7017] (Code Flash: 256KiB)
14:51:24 [INFO] Chip UID: 30-78-3e-26-3b-38-a9-d6
14:51:24 [INFO] BTVER(bootloader ver): 02.60
14:51:24 [INFO] Code Flash protected: false
RDPR_USER: 0x9F605AA5
  [7:0] RDPR 0b10100101 (0xA5)
    `- Unprotected
  [16:16] IWDG_SW 0b0 (0x0)
    `- IWDG enabled by the software
  [17:17] STOP_RST 0b0 (0x0)
    `- Enable
  [18:18] STANDBY_RST 0b0 (0x0)
    `- Enable
  [23:21] SRAM_CODE_MODE 0b11 (0x3)
    `- CODE-228KB + RAM-32KB
DATA: 0x00FF00FF
  [7:0] DATA0 0b11111111 (0xFF)
  [23:16] DATA1 0b11111111 (0xFF)
WRP: 0xFFFFFFFF
  `- Unprotected

> wchisp flash ./path/to/firmware.{bin,hex,elf}

> wchisp config info

> wchisp config reset

Tested On

This tool should work on most WCH MCU chips. But I haven't tested it on any other chips.

• CH32V307
  • VCT6
  • RCT6 #8
• CH32V103
• CH32F103
• CH552
  • Works but might be buggy #10 #14
• CH582
  • CH58xM-EVT
• CH573
  • WeActStudio.WCH-BLE-Core
• CH579
  • BTVER: 02.90 #18
• CH559
  • CH559TL_MINIEVT_V20 by wch.cn
• CH32V203
  • CH32V203G6 FlappyBoard
  • nanoCH32V203
• ... (feel free to open an issue whether it works on your chip or not)

Related Works (Many Thanks!)

• https://github.com/MarsTechHAN/ch552tool
• MarsTechHAN/ch552tool#21 by @Pe3ucTop
• https://github.com/Blinkinlabs/ch554_sdcc
• https://github.com/rgwan/librech551
• https://github.com/jobitjoseph/CH55XDuino
• https://github.com/frank-zago/isp55e0

Contribution

This project is under active development. If you have any suggestions or bug reports, please open an issue.

If it works for your devices, please open a pull request to modify this README page.

It it doesn't, please open an issue. Better provide the following information:

• chip type (with variant surfix)
• debug print of usb packets
• correct usb packets to negotiate with the chip (via USBPcap or other tools)