moyuhai
134 lines
4.4 KiB
C
134 lines
4.4 KiB
C
/*!
|
|
* \file uart.c
|
|
*
|
|
* \brief Target uart implementation
|
|
*
|
|
* \copyright Revised BSD License, see section \ref LICENSE.
|
|
*
|
|
* \code
|
|
*
|
|
* _ __ _ ________ _
|
|
* | |/ /(_)___ / ____/ /_ (_)___
|
|
* | // / __ \/ / / __ \/ / __ \
|
|
* / |/ / / / / /___/ / / / / /_/ /
|
|
* /_/|_/_/_/ /_/\____/_/ /_/_/ .___/
|
|
* /_/
|
|
* (C) 2022-2025 XinChip
|
|
*
|
|
* \endcode
|
|
*
|
|
* \author ( XinChip ) Alex-J
|
|
*
|
|
* \author ( XinChip )
|
|
*/
|
|
|
|
/*-----------------------------------------------------------------------------------
|
|
INCLUDE HEADE FILES
|
|
------------------------------------------------------------------------------------*/
|
|
#include "uart.h"
|
|
#include "xc6xxx_hal_uart.h"
|
|
|
|
/*------------------------------------------------------------------------------------
|
|
Macros
|
|
-------------------------------------------------------------------------------------*/
|
|
|
|
/*------------------------------------------------------------------------------------
|
|
Global Variables
|
|
-------------------------------------------------------------------------------------*/
|
|
|
|
/*------------------------------------------------------------------------------------
|
|
Functions
|
|
-------------------------------------------------------------------------------------*/
|
|
/**
|
|
* @brief uart_demo
|
|
* @details
|
|
* @param void
|
|
* @retval void
|
|
*/
|
|
void uart_demo(void)
|
|
{
|
|
DEBUG("__UART_DEMO__\n");
|
|
|
|
uint8_t rxbuff[26];
|
|
UART_TypeDef *uart_handle = XC_UART2; // XC_UART0;//XC_UART1;//XC_UART2;
|
|
|
|
if (uart_handle == XC_UART1) {
|
|
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
|
|
|
GPIO_InitStruct.Mux = GPIO_Mux0;
|
|
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
|
GPIO_InitStruct.Int = NOT_INT;
|
|
|
|
GPIO_InitStruct.Pin = GPIO_3;
|
|
GPIO_InitStruct.Dir = GPIO_DIR_OUTPUT;
|
|
GPIO_InitStruct.FunSel = UART1_TX;
|
|
GPIO_Init(&GPIO_InitStruct);
|
|
|
|
GPIO_InitStruct.Pin = GPIO_2;
|
|
GPIO_InitStruct.Dir = GPIO_DIR_INPUT;
|
|
GPIO_InitStruct.FunSel = UART1_RX;
|
|
GPIO_Init(&GPIO_InitStruct);
|
|
|
|
UART_InitTypeDef UART_InitStruct = {0};
|
|
|
|
UART_InitStruct.Parity = UART_PARITY_DISABLE;
|
|
UART_InitStruct.StopBits = UART_STOP_1_BITS;
|
|
UART_InitStruct.WordLength = UART_DATA_8_BITS;
|
|
UART_InitStruct.BaudRate = UART_BAUDRATE_115200;
|
|
UART_InitStruct.HardwareFlowControl = UART_HWFC_DISABLE;
|
|
|
|
UART_Init(uart_handle, &UART_InitStruct);
|
|
} else if (uart_handle == XC_UART2) {
|
|
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
|
|
|
GPIO_InitStruct.Mux = GPIO_Mux1;
|
|
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
|
GPIO_InitStruct.Int = NOT_INT;
|
|
GPIO_InitStruct.FunSel = GPIO_Dx;
|
|
|
|
GPIO_InitStruct.Pin = GPIO_32; // uart2 tx
|
|
GPIO_InitStruct.Dir = GPIO_DIR_OUTPUT;
|
|
|
|
GPIO_Init(&GPIO_InitStruct);
|
|
|
|
GPIO_InitStruct.Pin = GPIO_31; // uart2 rx
|
|
GPIO_InitStruct.Dir = GPIO_DIR_INPUT;
|
|
GPIO_Init(&GPIO_InitStruct);
|
|
|
|
UART_InitTypeDef UART_InitStruct = {0};
|
|
|
|
UART_InitStruct.Parity = UART_PARITY_DISABLE;
|
|
UART_InitStruct.StopBits = UART_STOP_1_BITS;
|
|
UART_InitStruct.WordLength = UART_DATA_8_BITS;
|
|
UART_InitStruct.BaudRate = UART_BAUDRATE_115200;
|
|
UART_InitStruct.HardwareFlowControl = UART_HWFC_DISABLE;
|
|
|
|
UART_Init(uart_handle, &UART_InitStruct);
|
|
}
|
|
|
|
UART_Enable_RxIT(uart_handle);
|
|
|
|
if (uart_handle == XC_UART0) {
|
|
NVIC_EnableIRQ(UART0_IRQn);
|
|
} else if (uart_handle == XC_UART1) {
|
|
NVIC_EnableIRQ(UART1_IRQn);
|
|
} else if (uart_handle == XC_UART2) {
|
|
NVIC_EnableIRQ(UART2_IRQn);
|
|
}
|
|
|
|
for (int i = 0; i < 26; i++) {
|
|
rxbuff[i] = i + 'A';
|
|
}
|
|
UART_SendData(uart_handle, rxbuff, 26);
|
|
|
|
uint16_t data_len = 0;
|
|
|
|
while (1) {
|
|
data_len = UART_ReceiveData(uart_handle, rxbuff);
|
|
if (data_len) {
|
|
UART_SendData(uart_handle, rxbuff, data_len);
|
|
data_len = 0;
|
|
}
|
|
}
|
|
}
|