/**
  ******************************************************************************
  * @file    main.c
  * @author  MCU Application Team
  * @brief   Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
  * All rights reserved.</center></h2>
  *
  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

#include "main.h"
#include "py32f0xx_bsp_printf.h"


static void APP_SystemClockConfig(void);
static void APP_GPIOConfig(void);


int main(void)
{
  APP_SystemClockConfig();
  APP_GPIOConfig();

  BSP_USART_Config(115200);
  printf("PY32F0xx GPIO Example\r\nClock: %ld\r\n", SystemCoreClock);

  while (1)
  {
    LL_GPIO_TogglePin(GPIOA, LL_GPIO_PIN_0);
    printf("echo\r\n");
    LL_mDelay(500);
  }
}

static void APP_SystemClockConfig(void)
{
  LL_RCC_HSI_Enable();
  while(LL_RCC_HSI_IsReady() != 1);

  LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
  LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_HSISYS);
  while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSISYS);

  LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
  LL_Init1msTick(8000000);
  LL_SetSystemCoreClock(8000000);
}


static void APP_GPIOConfig(void)
{
  // PA0
  LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOA);
  LL_GPIO_SetPinMode(GPIOA, LL_GPIO_PIN_0, LL_GPIO_MODE_OUTPUT);
}

void APP_ErrorHandler(void)
{
  while (1);
}

#ifdef  USE_FULL_ASSERT
void assert_failed(uint8_t *file, uint32_t line)
{
  while (1);
}
#endif /* USE_FULL_ASSERT */