159 lines
4.6 KiB
C
159 lines
4.6 KiB
C
/**
|
||
******************************************************************
|
||
* @file main.c
|
||
* @author fire
|
||
* @version V1.0
|
||
* @date 2019-xx-xx
|
||
* @brief CAN回环测试实验
|
||
******************************************************************
|
||
* @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"
|
||
|
||
#include "./delay/core_delay.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 H750 CAN通讯实验例程\r\n");
|
||
printf("\r\n 实验步骤：\r\n");
|
||
printf("\r\n 1.本实验为回环测试，只需一块开发板即可\r\n");
|
||
printf("\r\n 2.跳线帽5v --- C/4-5V 也不用接（多机需要）\r\n");
|
||
printf("\r\n 3.按下 KEY1 可以发送报文，然后开发板会自己收到报文\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 = 4
|
||
* 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***************************/
|