Failed to write flash

[zrz4066]

function save_parameter save data to flash and it will write well at the first time。It will failed to write on the second time

fn save_parameter(flash: &mut FlashWriter, ir_par: IrParameter) -> bool {
    let mut v: [u8; 128] = [0; 128];
    let mut offset = 0;
    let head_array = ir_par.header.to_be_bytes();
    let debug_array = ir_par.debugOn.to_le_bytes();
    let ir_calval_array = ir_par.ir_calval.to_le_bytes();
    let ir_maxval_array = ir_par.ir_maxval.to_le_bytes();
    let n_percent_array = ir_par.nPercent.to_le_bytes();
    for i in 0..head_array.len() {
        v[offset] = head_array[i];
        offset += 1;
    }

    for i in 0..debug_array.len() {
        v[offset] = debug_array[i];
        offset += 1;
    }
    for i in 0..ir_calval_array.len() {
        v[offset] = ir_calval_array[i];
        offset += 1;
    }
    for i in 0..ir_maxval_array.len() {
        v[offset] = ir_maxval_array[i];
        offset += 1;
    }
    for i in 0..n_percent_array.len() {
        v[offset] = n_percent_array[i];
        offset += 1;
    }
    //flash.change_verification(false);
    //.change_verification(false)
    flash.erase(FLASH_WRITE_START_ADDR, 1024).unwrap();
    //flash.page_erase(FLASH_WRITE_START_ADDR);//.unwrap();
    match flash.write(FLASH_WRITE_START_ADDR, &v) {
        Ok(_ret) => true,
        Err(_e) => false,
    };
    false
}

[TheZoq2]

That's interesting. I don't quite remember the details of how flash works so I may not be of much help ATM. Do you have access to a debugger (rtt, itm etc.) or perhaps just a serial port so you could print the error being produced rather than just throwing it away. That would at least give some clues as to what might be going wrong.