A tool to flash BL602 via JTAG + serial without pressing buttons / setting jumpers.

Additionally it provides a simple serial monitor to show serial output from your application.

It downloads the eflasher binary to RAM via JTAG. Then it starts the elfasher and transfers the binary you want to flash via serial.

The serial flashing is done by code from @Spacemeowx2's wonderful BLFLASH. Basically everything in the blflash module is copied from https://github.com/spacemeowx2/blflash

Unfortunately I had to copy the code since BLFLASH and probe-rs use clashing dependencies.

USAGE:
    blash.exe [FLAGS] [OPTIONS] [--] <file>

FLAGS:
    -h, --help          Prints help information
        --no-monitor
    -V, --version       Prints version information

OPTIONS:
        --baud <baud>                     [default: 2000000]
        --monitor-baud <monitor-baud>     [default: 115200]
        --port <port>

ARGS:
    <file>

This way you can just use it in .cargo/config like this:

...
runner = "blash --"
...

The port argument is optional if only one serial port is found. Otherwise it's mandatory.

For now clone this repository and run:

cargo install --path .

This is hopefully just a temporary solution and we get https://github.com/9names/bl602-loader working someday.

If something is not working or can get improved create an issue or send an PR.

I only tested this on Windows with an Sipeed JTAG adapter.

If you get an error regarding communicating to the debug probe - just try again. Hope to get this fixed.