/**
  ******************************************************************
  * @file    main.c
  * @author  fire
  * @version V1.0
  * @date    2019-xx-xx
  * @brief   CAN双机测试实验
  ******************************************************************
  * @attention
  *
  * 实验平台:野火 STM32H750 开发板 
  * 论坛    :http://www.firebbs.cn
  * 淘宝    :http://firestm32.taobao.com
  *
  ******************************************************************
  */  
#include "stm32h7xx.h"
#include "main.h"
#include "./led/bsp_led.h"
#include "./usart/bsp_debug_usart.h"
#include "./key/bsp_key.h"
#include "./can/bsp_can.h"

extern FDCAN_HandleTypeDef hfdcan;
FDCAN_RxHeaderTypeDef RxHeader;
uint8_t RxData[12];
/**
  * @brief  主函数
  * @param  无
  * @retval 无
  */
int main(void)
{
	/* 使能指令缓存 */
	SCB_EnableICache();
  /* 使能数据缓存 */
  SCB_EnableDCache();
	/* 系统时钟初始化成480MHz */
	SystemClock_Config();
	/* LED 端口初始化 */
	LED_GPIO_Config();	
	LED_BLUE;
	
	/* 配置串口1为：115200 8-N-1 */
	DEBUG_USART_Config();
	/* 初始化独立按键 */
	Key_GPIO_Config();
	
	CAN_Config();
	printf("\r\n欢迎使用野火  STM32 H750 开发板。\r\n");	
	printf("\r\n 野火H743 CAN通讯实验例程\r\n");			
	printf("\r\n 实验步骤：\r\n");

	printf("\r\n 1.使用导线连接好两个CAN讯设备\r\n");
	printf("\r\n 2.使用跳线帽连接好:5v --- C/4-5V \r\n");
	printf("\r\n 3.按下开发板的KEY1键，会使用CAN向外发送0-11的数据包，包的扩展ID为0x1314 \r\n");
	printf("\r\n 4.若开发板的CAN接收到扩展ID为0x1314的数据包，会把数据以打印到串口。 \r\n");
	printf("\r\n 5.本例中的can波特率为1MBps。 \r\n");
	while(1)
	{	
		/*按一次按键发送一次数据*/
		if(	Key_Scan(KEY1_GPIO_PORT,KEY1_PIN) == KEY_ON)
		{
			LED_BLUE;			
			/* 装载一帧数据 */
			CAN_SetMsg();
			HAL_Delay(100);
			LED_RGBOFF;			
		}
		if(HAL_FDCAN_IsRxBufferMessageAvailable(&hfdcan,FDCAN_RX_BUFFER0))
		{	
			/* 接收消息 */
			HAL_FDCAN_GetRxMessage(&hfdcan, FDCAN_RX_BUFFER0, &RxHeader, RxData);						
			/*接收成功*/
			LED_GREEN;
			printf("\r\nCAN接收到数据：\r\n");	
			CAN_DEBUG_ARRAY(RxData,8); 			
			HAL_Delay(100);
			LED_RGBOFF;
		}
	}
}

/**
  * @brief  System Clock 配置
  *         system Clock 配置如下: 
	*            System Clock source  = PLL (HSE)
	*            SYSCLK(Hz)           = 480000000 (CPU Clock)
	*            HCLK(Hz)             = 240000000 (AXI and AHBs Clock)
	*            AHB Prescaler        = 2
	*            D1 APB3 Prescaler    = 2 (APB3 Clock  120MHz)
	*            D2 APB1 Prescaler    = 2 (APB1 Clock  120MHz)
	*            D2 APB2 Prescaler    = 2 (APB2 Clock  120MHz)
	*            D3 APB4 Prescaler    = 2 (APB4 Clock  120MHz)
	*            HSE Frequency(Hz)    = 25000000
	*            PLL_M                = 5
	*            PLL_N                = 192
	*            PLL_P                = 2
	*            PLL_Q                = 24
	*            PLL_R                = 2
	*            VDD(V)               = 3.3
	*            Flash Latency(WS)    = 4
  * @param  None
  * @retval None
  */
/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** 启用电源配置更新
  */
  HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
  /** 配置主内稳压器输出电压
  */
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE0);

  while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
  /** 初始化CPU、AHB和APB总线时钟
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = 5;
  RCC_OscInitStruct.PLL.PLLN = 192;
  RCC_OscInitStruct.PLL.PLLP = 2;
  RCC_OscInitStruct.PLL.PLLQ = 24;
  RCC_OscInitStruct.PLL.PLLR = 2;
  RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
  RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
  RCC_OscInitStruct.PLL.PLLFRACN = 0;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
		while(1);
  }
  /** 初始化CPU、AHB和APB总线时钟
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
                              |RCC_CLOCKTYPE_D3PCLK1|RCC_CLOCKTYPE_D1PCLK1;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
  RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
  {
		while(1);
  }
}
/****************************END OF FILE***************************/