STM32在HAL库中配置双ADC的同步规则采样DMA传输

主函数里面的内容如下

/* ************************************************************* ************************************************************* 注意： ADC转换的值存放在32位宽的uhADCxyConvertedValue[]数组中，该数组长度为20000 再经数据处理一下后，ADC1的数据会存放在16位宽的uhADCxyConvertedValue_Lock[]数组中，ADC2会存在uhADCxyConvertedValue_Lock[]的6144+后面的6144个里面。 当需要的数据个数很多时，要更改数组长度。数组定义在ADC_DMA.h的DataBuffer_Length中 USB发送时使用的是小端模式（低地址存放低位，高地址存放高位），上位机接受需要组合成 unsigned short类型的数 ************************************************************* ************************************************************* 接线： 串口VCC: CN8-7(左边从上数第4个) 串口GND: CN8-13(左边从下数第2个) 串口RX : CN9-4(右边从上数第2个) 串口TX : CN9-6(右边从上数第3个) ADC_IN : CN9-11(左边从上数第6个) ADC_GND : CN9-12(右边从上数第6个) EXTI_IN: CN9-29(左边从下数第1个) EXTI_GND：CN9-23(左边从下数第4个) 外接电源VIN：CN8-15(左边从下数第1个),同时还要将JP3的跳线帽接到最右边VIN-5V端 ************************************************************* ************************************************************* 指示灯： LED3亮表示AD转换成功，每次触发后会被刷新 LED2亮表示USER BUTTON被按下触发，每次触发后会被刷新 LED1亮表示被外部信号触发，每次触发后会被刷新 ************************************************************* ************************************************************* ADC电压采样范围为：0--3.3V */ /* Includes ------------------------------------------------------------------*/ #include "main.h" __IO uint16_t uhADCxConvertedValue[DataBuffer_Length]={0} ; __IO uint16_t uhADCyConvertedValue[DataBuffer_Length]={0} ; uint32_t NumOfPoint = NumOfWave * NUMofOneWave; //DMA发送的数据个数12*512=6144个数据////？？？是否需要改成12288 uint32_t SampleRate = Frequence * NUMofOneWave; //采样率22*512=11264 uint32_t DMA_DelayTime = 0; //初始化DMA搬运延时时间 USBD_HandleTypeDef USBD_Device; //USB设备结构体 uint8_t * CHAR_PTR =(uint8_t *)&uhADCxyConvertedValue[0]; //把要发送的 unsigned short型数据强制变成char型 uint8_t * CHAR_PTR_2 = (uint8_t *)&lBufMagArray[0]; uint8_t * CHAR_PTR_3 = (uint8_t *)&FFT_REB[0]; float Res_out = 0; //double Res_out = 0; uint8_t * CHAR_PTR_1; int main(void) { //系统初始化 CPU_CACHE_Enable(); //初始化Cache HAL_Init(); SystemClock_Config(); //系统时钟216MHz //外设初始化 UART_Init(BaudRate_URAT); //串口初始化 BSP_LED_Init(LED3); //初始化LED3，用于指示AD转换成功 BSP_LED_Init(LED2); //初始化LED2，用于指示按钮是否按下 BSP_LED_Init(LED1); //初始化LED1，用于指示外部触发 TIMER1_Init((uint32_t)(100000/(Frequence*NUMofOneWave))-1); //TIMER初始化 //(100000/(22*512)-1)= Dual_ADC_DMA_Init(); EXTI_Init(); //使能外部中断 //USB初始化 USBD_Init(&USBD_Device, &VCP_Desc, 0); //USB设备初始化 USBD_RegisterClass(&USBD_Device, USBD_CDC_CLASS); //CDC类初始化 USBD_CDC_RegisterInterface(&USBD_Device, &USBD_CDC_fops); //CDC类接口初始化 USBD_Start(&USBD_Device); //开启USB while(1) { if(EXTI_BUTTON_FLAG||EXTI_TRIGGER_FLAG) { //开启AD转换 ADC_DMA_START( NumOfPoint); //启动ADC_DMA ADC_TRIGGER_START(); //启动TIMER DMA_DelayTime = (uint32_t)(NumOfPoint*1000/SampleRate)+10;////(6144*1000/11264)+10=555.454545 HAL_Delay(DMA_DelayTime); //需要延时等DMA把数都运完 //停止AD转化 ADC_DMA_STOP(); //关闭ADC_DMA //串口发送数据 for(uint32_t ADC_DATA_POINT=0;ADC_DATA_POINT>16; uhADCxyConvertedValue_Lock[ADC_DATA_POINT] = uhADCxConvertedValue[ADC_DATA_POINT]; uhADCxyConvertedValue_Lock[ADC_DATA_POINT+NumOfPoint] = uhADCyConvertedValue[ADC_DATA_POINT]; printf("%u\n",uhADCxConvertedValue[ADC_DATA_POINT]); printf("%u\n",uhADCyConvertedValue[ADC_DATA_POINT]); } // Res_out = DATA_PROCESS(); // printf("%f\n",Res_out); EXTI_BUTTON_FLAG = 0; EXTI_TRIGGER_FLAG = 0; BSP_LED_Off(LED3); BSP_LED_Off(LED2); BSP_LED_Off(LED1); //以下部分用于数据处理 //Res_out = DATA_PROCESS(); // // CHAR_PTR_1 = (uint8_t *)&Res_out; // // USBD_CDC_SetTxBuffer(&USBD_Device,CHAR_PTR_1,(sizeof(float))); //USB通讯 // USBD_CDC_SetTxBuffer(&USBD_Device,CHAR_PTR_3,(NPT/2)*(sizeof(double))); //USB数据发送 // USBD_CDC_SetTxBuffer(&USBD_Device,CHAR_PTR,NumOfPoint*SIZE); while(USBD_CDC_TransmitPacket(&USBD_Device)!=USBD_OK) {BSP_LED_On(LED1);} //未发送成功则LED1亮 } } } /** * @brief System Clock Configuration * The system Clock is configured as follow : * System Clock source = PLL (HSE) * SYSCLK(Hz) = 216000000 * HCLK(Hz) = 216000000 * AHB Prescaler = 1 * APB1 Prescaler = 4 * APB2 Prescaler = 2 * HSE Frequency(Hz) = 8000000 * PLL_M = 8 * PLL_N = 432 * PLL_P = 2 * PLL_Q = 9 * VDD(V) = 3.3 * Main regulator output voltage = Scale1 mode * Flash Latency(WS) = 7 */ void SystemClock_Config(void) { RCC_ClkInitTypeDef RCC_ClkInitStruct; RCC_OscInitTypeDef RCC_OscInitStruct; RCC_PeriphCLKInitTypeDef PeriphClkInitStruct; /* Enable HSE Oscillator and activate PLL with HSE as source */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.HSIState = RCC_HSI_OFF; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = 8; RCC_OscInitStruct.PLL.PLLN = 432; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_OscInitStruct.PLL.PLLQ = 9; if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { while(1) {}; } /* Activate the OverDrive to reach the 216 Mhz Frequency */ if(HAL_PWREx_EnableOverDrive() != HAL_OK) { while(1) {}; } /* Select PLLSAI output as USB clock source */ PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_CLK48; PeriphClkInitStruct.Clk48ClockSelection = RCC_CLK48SOURCE_PLLSAIP; PeriphClkInitStruct.PLLSAI.PLLSAIN = 384; PeriphClkInitStruct.PLLSAI.PLLSAIQ = 7; PeriphClkInitStruct.PLLSAI.PLLSAIP = RCC_PLLSAIP_DIV8; if(HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK) { while(1) {}; } /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers */ RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2); RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_7) != HAL_OK) { while(1) {}; } } /** * @brief CPU L1-Cache enable. * @param None * @retval None */ static void CPU_CACHE_Enable(void) { /* Enable I-Cache */ SCB_EnableICache(); /* Enable D-Cache */ SCB_EnableDCache(); } #ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval None */ 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) */ /* Infinite loop */ while (1) { } } #endif

想请教一下大佬，这个双通道ADC的配置问题出在哪些地方了

可能可以从CACHE入手

先调试ADC的转换，再配置DMA，一步一步走出来