void SendDataBuf(USART_TypeDef* USARTx,u8 *Data,u8 len)
{
    
   	u8 parity = 0,length = len + 4,count = 0;
	USARTx_Send(USARTx,0XAA);
	USARTx_Send(USARTx,length);
	parity ^= length;
	for(count = 0;count < len; count++)
	{
	 USARTx_Send(USARTx,*(Data+count));
	 parity ^= *(Data+count);
	}
	USARTx_Send(USARTx,parity);
	USARTx_Send(USARTx,0X55);
}
Exemple #2
0
void vNFCTxTask(void* pvParameters ) {
	TQ tq;

	vDebugString("NFC TX task started");
/*
	while(1)
	{	USARTx_Send(DMA1_Stream3,"A",1*sizeof(uint8_t));
	vTaskDelay(10);
	}
*/
	for(;;) {

		if(xQueueReceive( xQueueNFCTx, &tq, (portTickType)portMAX_DELAY) == pdPASS){
			USARTx_Send(DMA1_Stream3,tq.data,tq.length*sizeof(uint8_t));

			if(xSemaphoreTake(xSemaphoreTx,(portTickType)100) != pdTRUE){
				vDebugString("NFC TX task timeout");
			}
		}
		else
		{
			vTaskDelay(50);
		}
	}
}