/** ****************************************************************** * @file main.c * @author fire * @version V1.0 * @date 2019-xx-xx * @brief ADC-采集 ****************************************************************** * @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 "./usart/bsp_debug_usart.h" #include "./adc/bsp_adc.h" #include "./delay/core_delay.h" extern uint16_t ADC_ConvertedValue[4]; float ADC_vol[4]; //简单的延时函数 static void Delay(__IO uint32_t nCount) { for(; nCount != 0; nCount--); } /** * @brief 主函数 * @param 无 * @retval 无 */ int main(void) { /* 系统时钟初始化成480MHz */ SystemClock_Config(); /* 默认不配置 MPU,若需要更高性能,当配置 MPU 后,使用 DMA 时需注意 Cache 与 内存内容一致性的问题, 具体注意事项请参考配套教程的 MPU 配置相关章节 */ // Board_MPU_Config(0, MPU_Normal_WT, 0xD0000000, MPU_32MB); // Board_MPU_Config(1, MPU_Normal_WT, 0x24000000, MPU_512KB); SCB_EnableICache(); // 使能指令 Cache // SCB_EnableDCache(); // 使能数据 Cache /* 配置串口1为:115200 8-N-1 */ DEBUG_USART_Config(); /* ADC初始化子程序 */ ADC_Init(); while(1) { ADC_vol[0] =(float) ADC_ConvertedValue[0]/65536*(float)3.3; ADC_vol[1] =(float) ADC_ConvertedValue[1]/65536*(float)3.3; ADC_vol[2] =(float) ADC_ConvertedValue[2]/65536*(float)3.3; ADC_vol[3] =(float) ADC_ConvertedValue[3]/65536*(float)3.3; printf("\r\n CH1_PA4 value = %f V \r\n",ADC_vol[0]); printf("\r\n CH2_PA5 value = %f V \r\n",ADC_vol[1]); printf("\r\n CH3_PA6 value = %f V \r\n",ADC_vol[2]); printf("\r\n CH3_PA7 value = %f V \r\n",ADC_vol[3]); printf("\r\n\r\n"); Delay(0xffffff); } } /** * @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` */ 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_SCALE1); while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {} /* 启用HSE振荡器并使用HSE作为源激活PLL */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.HSIState = RCC_HSI_OFF; RCC_OscInitStruct.CSIState = RCC_CSI_OFF; 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.PLLR = 2; RCC_OscInitStruct.PLL.PLLQ = 4; RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE; RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2; if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { while(1) { ; } } /* 选择PLL作为系统时钟源并配置总线时钟分频器 */ RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | \ RCC_CLOCKTYPE_HCLK | \ RCC_CLOCKTYPE_D1PCLK1 | \ RCC_CLOCKTYPE_PCLK1 | \ RCC_CLOCKTYPE_PCLK2 | \ RCC_CLOCKTYPE_D3PCLK1); 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***************************/