xushaoxiang
104 lines
3.2 KiB
C
104 lines
3.2 KiB
C
/*!
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* \file uart_dma_test.c
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*
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* \brief Target uart test implementation
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*
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* \copyright Revised BSD License, see section \ref LICENSE.
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*
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* \code
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*
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* _ __ _ ________ _
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* | |/ /(_)___ / ____/ /_ (_)___
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* | // / __ \/ / / __ \/ / __ \
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* / |/ / / / / /___/ / / / / /_/ /
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* /_/|_/_/_/ /_/\____/_/ /_/_/ .___/
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* /_/
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* (C) 2022-2025 XinChip
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*
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* \endcode
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*
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* \author ( XinChip ) Alex-J
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*
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* \author ( XinChip )
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*/
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/*-----------------------------------------------------------------------------------
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INCLUDE HEADE FILES
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------------------------------------------------------------------------------------*/
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#include "uart_dma.h"
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#include "xc60xx_uart.h"
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/*------------------------------------------------------------------------------------
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Macros
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-------------------------------------------------------------------------------------*/
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/*------------------------------------------------------------------------------------
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Global Variables
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-------------------------------------------------------------------------------------*/
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/*------------------------------------------------------------------------------------
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Functions
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-------------------------------------------------------------------------------------*/
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/**
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* @brief uart_dma_demo
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* @details
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* @param void
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* @retval void
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*/
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void uart_dma_demo(void) {
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DEBUG("__UART_DMA_DEMO__\n");
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uint8_t __attribute__((aligned(4))) rxbuff[26];
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UART_TypeDef *uart_handle = XC_UART0;
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UART_InitTypeDef UART_InitStruct = {0};
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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GPIO_InitStruct.Mux = GPIO_Mux0;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Int = NOT_INT;
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GPIO_InitStruct.Pin = GPIO_3;
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GPIO_InitStruct.Dir = GPIO_DIR_OUTPUT;
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GPIO_InitStruct.FunSel = UART0_TX;
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GPIO_Init(&GPIO_InitStruct);
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GPIO_InitStruct.Pin = GPIO_2;
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GPIO_InitStruct.Dir = GPIO_DIR_INPUT;
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GPIO_InitStruct.FunSel = UART0_RX;
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GPIO_Init(&GPIO_InitStruct);
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UART_InitStruct.Parity = UART_PARITY_DISABLE;
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UART_InitStruct.StopBits = UART_STOP_1_BITS;
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UART_InitStruct.WordLength = UART_UARTx_TCR_CLS_8BITS;
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UART_InitStruct.BaudRate = UART_BAUDRATE_115200;
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UART_InitStruct.HardwareFlowControl = UART_UARTx_MCR_AFCE_DISABLE;
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UART_Init(uart_handle, &UART_InitStruct);
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UART_DMA_IT_Register_TxCallback(uart_handle);
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UART_DMA_IT_Register_RxCallback(uart_handle);
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if (uart_handle == XC_UART0) {
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UART_DMA_IT_Enable(XC_UART0,
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1 << (DMA_CH_RCV_UART0 + 16) | 1 << DMA_CH_SEND_UART0);
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} else if (uart_handle == XC_UART1) {
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UART_DMA_IT_Enable(XC_UART1,
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1 << (DMA_CH_RCV_UART1 + 16) | 1 << DMA_CH_SEND_UART1);
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}
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NVIC_EnableIRQ(DMAS_IRQn);
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UARTx_DMA_Receive_Config(uart_handle);
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for (int i = 0; i < 26; i++) {
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uart_txdmabuff[i] = i + 'A';
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}
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while (1) {
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if (UART_DMA_ReceiveData(uart_handle, rxbuff)) {
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UART_DMA_SendData(uart_handle, rxbuff, 1);
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}
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}
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}
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