Link to blink demo program for CH582?

[zoobab]

Hi,

Thanks for your flashing software, much simpler and better in C then the other tool in Rust.

I got a WeAct CH582F board, I managed to dump the firmware to a file.

I am now hunting for a simple Makefile and GCC toolchain to make a Blink program without all the WCH fluf, do you have a link to a good example?

I tried this repo https://github.com/dreamcmi/CH582-CMake yesterday with a riscv-none toolchain in Alpine 3.17, but got some headers errors.

Keep up the good work!

[frank-zago]

I don't have any example, and I don't own a board with that chip.

However I was able to build a firmware from that git repo by using the toolchain at https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack/releases/tag/v12.2.0-3, fixing the few case sensitive includes and changing the arch from rv32imac to rv32imac_zicsr.

[frank-zago]

I got one board, with an LED on PB4. Using the repo and toolchain above-mentionned, replace Main.cpp with:

typedef volatile unsigned long *PUINT32V;
#define R32_PB_DIR          (*((PUINT32V)0x400010C0)) // RW, GPIO PB I/O direction: 0=in, 1=out
#define R32_PB_OUT          (*((PUINT32V)0x400010C8)) // RW, GPIO PB output
int main(void)
{
const unsigned int pin = (1<<4);    /* pin 4 */
int i;
R32_PB_DIR |= pin;      /* PB4 gpio direction out */
// Blink led at about 1Hz
while (1) {
for (i = 0; i < 50000; i++)
    R32_PB_OUT |= pin;      /* on */
for (i = 0; i < 50000; i++)
    R32_PB_OUT &= ~pin;         /* off */
}
}

Resulting binary is about 2KiB.