stm32g0xx/Core/main.cc

#include <cstring>
#include <cstdint>
#include <cstdio>

#include "delay.h"
#include "platform/stm32g0xx/Gpio.h"
#include "platform/stm32g0xx/Uart.h"
#include "platform/stm32g0xx/IndependentWatchdog.h"

// NOTE! The independent watchdog is clocked by a separate clock. this one
//       isn't controlled by JTAG. That's why the independent watchdog needs to
//       be disabled during JTAG debug sessions.
#define JTAG_DEBUG

using namespace perinet::platform::stm32g0xx;

Gpio green_led(Gpio::Port::PORT_A, 5, Gpio::Mode::MODE_OUTPUT_PP);
Uart uart(Uart::UartDevice::UART_2, 115200);

#ifndef JTAG_DEBUG
IndependentWatchdog watchdog(4095, 4095);
#endif

int main(void)
{
    unsigned int i = 1, j = 40;
    char tx_buf[80];

#ifndef JTAG_DEBUG
    watchdog.enable();
#endif

    while (1) {
        if (j < 100) {
            j += 10;
        }
        else if (j < 200) {
            j += 20;
        }
        else if (j < 400) {
            j += 40;
        }
        if (j > 800) {
            j = 800;
        }
        sprintf(tx_buf, "%u: Hello World\r\n", i++);
        uart.sync_send((const uint8_t *)tx_buf, strlen(tx_buf));
        green_led.toggle();
        delay_ms(j);

#ifndef JTAG_DEBUG
        watchdog.trigger();
#endif
    }
}

#ifdef  USE_FULL_ASSERT
void assert_failed(uint8_t *file, uint32_t line)
{
    /* User can add his own implementation to report the file name and line number,
       ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
}
#endif /* USE_FULL_ASSERT */