Remove non working DMA example
This commit is contained in:
Roger Clark
parent
6fbdab0b94
commit
22f69cc8f2
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@ -1,144 +0,0 @@
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#include <HAL.h>
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#define LED PB1
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int c=0;
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#define LED_PIN GPIO_PIN_1
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#define LED_PORT GPIOB
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DMA_HandleTypeDef DmaHandle;
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#define BUFFER_SIZE 32
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static const uint32_t aSRC_Const_Buffer[BUFFER_SIZE]= {
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0x01020304,0x05060708,0x090A0B0C,0x0D0E0F10,
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0x11121314,0x15161718,0x191A1B1C,0x1D1E1F20,
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0x21222324,0x25262728,0x292A2B2C,0x2D2E2F30,
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0x31323334,0x35363738,0x393A3B3C,0x3D3E3F40,
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0x41424344,0x45464748,0x494A4B4C,0x4D4E4F50,
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0x51525354,0x55565758,0x595A5B5C,0x5D5E5F60,
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0x61626364,0x65666768,0x696A6B6C,0x6D6E6F70,
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0x71727374,0x75767778,0x797A7B7C,0x7D7E7F80};
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static uint32_t aDST_Buffer[BUFFER_SIZE];
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static void DMA_Config(void)
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{
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/*## -1- Enable DMA2 clock #################################################*/
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// __DMA2_CLK_ENABLE();
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/*##-2- Select the DMA functional Parameters ###############################*/
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DmaHandle.Init.Channel = DMA_CHANNEL; /* DMA_CHANNEL_0 */
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DmaHandle.Init.Direction = DMA_MEMORY_TO_MEMORY; /* M2M transfer mode */
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DmaHandle.Init.PeriphInc = DMA_PINC_ENABLE; /* Peripheral increment mode Enable */
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DmaHandle.Init.MemInc = DMA_MINC_ENABLE; /* Memory increment mode Enable */
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DmaHandle.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD; /* Peripheral data alignment : Word */
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DmaHandle.Init.MemDataAlignment = DMA_MDATAALIGN_WORD; /* memory data alignment : Word */
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DmaHandle.Init.Mode = DMA_NORMAL; /* Normal DMA mode */
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DmaHandle.Init.Priority = DMA_PRIORITY_HIGH; /* priority level : high */
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DmaHandle.Init.FIFOMode = DMA_FIFOMODE_DISABLE; /* FIFO mode disabled */
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DmaHandle.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
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DmaHandle.Init.MemBurst = DMA_MBURST_SINGLE; /* Memory burst */
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DmaHandle.Init.PeriphBurst = DMA_PBURST_SINGLE; /* Peripheral burst */
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/*##-3- Select the DMA instance to be used for the transfer : DMA2_Stream0 #*/
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DmaHandle.Instance = DMA_STREAM;
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/*##-4- Select Callbacks functions called after Transfer complete and Transfer error */
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DmaHandle.XferCpltCallback = TransferComplete;
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DmaHandle.XferErrorCallback = TransferError;
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/*##-5- Initialize the DMA stream ##########################################*/
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if(HAL_DMA_Init(&DmaHandle) != HAL_OK)
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{
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/* Initialization Error */
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Error_Handler();
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}
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/*##-6- Configure NVIC for DMA transfer complete/error interrupts ##########*/
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/* Set Interrupt Group Priority */
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HAL_NVIC_SetPriority(DMA_STREAM_IRQ, 0, 0);
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/* Enable the DMA STREAM global Interrupt */
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HAL_NVIC_EnableIRQ(DMA_STREAM_IRQ);
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/*##-7- Start the DMA transfer using the interrupt mode ####################*/
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/* Configure the source, destination and buffer size DMA fields and Start DMA Stream transfer */
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/* Enable All the DMA interrupts */
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if(HAL_DMA_Start_IT(&DmaHandle, (uint32_t)&aSRC_Const_Buffer, (uint32_t)&aDST_Buffer, BUFFER_SIZE) != HAL_OK)
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{
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/* Transfer Error */
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Error_Handler();
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}
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}
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static void Error_Handler()
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{
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Serial.println("Error");
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}
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/**
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* @brief DMA conversion complete callback
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* @note This function is executed when the transfer complete interrupt
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* is generated
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* @retval None
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*/
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static void TransferComplete(DMA_HandleTypeDef *DmaHandle)
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{
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/* Turn LED1 on: Transfer correct */
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Serial.println("TransferComplete");
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}
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/**
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* @brief DMA conversion error callback
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* @note This function is executed when the transfer error interrupt
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* is generated during DMA transfer
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* @retval None
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*/
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static void TransferError(DMA_HandleTypeDef *DmaHandle)
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{
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/* Turn LED2 on: Transfer Error */
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Serial.println("TransferError");
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}
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void setup()
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{
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// pinMode(LED,OUTPUT);
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GPIO_InitTypeDef GPIO_InitStruct;
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GPIO_InitStruct.Pin = LED_PIN;
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GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct);
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HAL_GPIO_WritePin(LED_PORT,GPIO_PIN_1,GPIO_PIN_RESET);// Turn off the LED
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Serial.begin(115200);
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DMA_Config();
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}
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void loop()
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{
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Serial.println(c++);
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HAL_GPIO_WritePin(LED_PORT,LED_PIN,GPIO_PIN_SET);
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delay(500);
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HAL_GPIO_WritePin(LED_PORT,LED_PIN,GPIO_PIN_RESET);
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delay(100);
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HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_1);
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delay(1000);
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HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_1);
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delay(250);
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}
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