191 lines
6.1 KiB
C
Executable File
191 lines
6.1 KiB
C
Executable File
/*
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* Copyright (C) 2017 XRADIO TECHNOLOGY CO., LTD. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name of XRADIO TECHNOLOGY CO., LTD. nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <string.h>
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#include "kernel/os/os.h"
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#include "driver/chip/hal_uart.h"
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//#define UART_DMA_MODE
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//#define UART_IT_MODE
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#define UART_POLL_MODE
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#define UARTID UART1_ID
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static int uart_init(void)
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{
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HAL_Status status = HAL_ERROR;
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UART_InitParam param;
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param.baudRate = 115200;
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param.dataBits = UART_DATA_BITS_8;
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param.stopBits = UART_STOP_BITS_1;
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param.parity = UART_PARITY_NONE;
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param.isAutoHwFlowCtrl = 0;
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status = HAL_UART_Init(UARTID, ¶m);
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if (status != HAL_OK)
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printf("uart init error %d\n", status);
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return status;
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}
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static int uart_deinit(void)
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{
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HAL_Status status = HAL_ERROR;
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#if (defined(UART_DMA_MODE))
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status = HAL_UART_DisableTxDMA(UARTID);
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if (status != HAL_OK)
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printf("uart TX disenable DMA error %d\n", status);
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status = HAL_UART_DisableRxDMA(UARTID);
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if (status != HAL_OK)
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printf("uart RX disenable DMA error %d\n", status);
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#endif
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status = HAL_UART_DeInit(UARTID);
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if (status != HAL_OK)
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printf("uart deinit error %d\n", status);
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return status;
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}
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#if (defined(UART_DMA_MODE))
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/* @bref DMA Mode:use DMA receive & transmit data */
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static void uart_dma_mode(void)
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{
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int32_t len = 0;
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uint8_t rx_data;
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char buffer[20];
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uint8_t len_str;
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HAL_Status status = HAL_ERROR;
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printf("uart%d dma mode\n", UARTID);
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status = HAL_UART_EnableTxDMA(UARTID);
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if (status != HAL_OK)
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printf("uart TX enable DMA error %d\n", status);
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status = HAL_UART_EnableRxDMA(UARTID);
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if (status != HAL_OK)
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printf("uart RX enable DMA error %d\n", status);
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len_str = snprintf(buffer, 20, "uart%d DMA mode.\n", UARTID);
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HAL_UART_Transmit_DMA(UARTID, (uint8_t *)buffer, len_str);
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while (1) {
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len = HAL_UART_Receive_DMA(UARTID, /*uartID*/
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&rx_data, /*buf Pointer to the data buffer*/
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1, /*size The maximum number of bytes to be received*/
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10000); /*Timeout value in millisecond to receive data, HAL_WAIT_FOREVER for no timeout*/
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if (len > 0)
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HAL_UART_Transmit_DMA(UARTID, /*uartID*/
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&rx_data, /*buf Pointer to the data buffer*/
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len); /*size Number of bytes to be transmitted*/
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len = 0;
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}
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}
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#endif
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#if (defined(UART_IT_MODE))
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/* @bref Interrupt Mode:use interrupt receive & transmit data */
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static void uart_it_mode(void)
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{
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int32_t len;
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uint8_t rx_data;
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char buffer[20];
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uint8_t len_str;
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printf("uart%d it mode\n", UARTID);
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len_str = snprintf(buffer, 20, "uart%d it mode.\n", UARTID);
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HAL_UART_Transmit_IT(UARTID, (uint8_t *)buffer, len_str);
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while (1) {
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len = HAL_UART_Receive_IT(UARTID, /*uartID*/
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&rx_data, /*buf Pointer to the data buffer*/
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1, /*size The maximum number of bytes to be received*/
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10000); /*Timeout value in millisecond to receive data, HAL_WAIT_FOREVER for no timeout*/
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if (len > 0)
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HAL_UART_Transmit_IT(UARTID, /*uartID*/
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&rx_data, /*buf Pointer to the data buffer*/
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len); /*size Number of bytes to be transmitted*/
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len = 0;
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}
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}
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#endif
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#if (defined(UART_POLL_MODE))
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/* @bref Poll Mode: cpu poll for receive & transmit data */
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static void uart_poll_mode(void)
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{
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int32_t len = 0;
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uint8_t rx_data;
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char buffer[20];
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uint8_t len_str;
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printf("uart%d poll mode.\n", UARTID);
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len_str = snprintf(buffer, 20, "uart%d poll mode.\n", UARTID);
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HAL_UART_Transmit_Poll(UARTID, (uint8_t *)buffer, len_str);
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while (1) {
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len = HAL_UART_Receive_Poll(UARTID, /*uartID*/
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&rx_data, /*buf Pointer to the data buffer*/
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1, /*size The maximum number of bytes to be received*/
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10000); /*Timeout value in millisecond to receive data, HAL_WAIT_FOREVER for no timeout*/
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if (len > 0)
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HAL_UART_Transmit_Poll(UARTID, /*uartID*/
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&rx_data, /*buf Pointer to the data buffer*/
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len); /*size Number of bytes to be transmitted*/
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}
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}
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#endif
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/* Run this example, please connect the uart0 and uart1 */
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int main(void)
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{
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printf("uart example started.\n\n");
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uart_init();
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printf("you can connect to uart1 serial com.\n");
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printf("uart%d used for echo.\n", UARTID);
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#if (defined(UART_DMA_MODE))
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uart_dma_mode();
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#elif (defined(UART_IT_MODE))
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uart_it_mode();
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#elif (defined(UART_POLL_MODE))
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uart_poll_mode();
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#endif
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uart_deinit();
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printf("uart example over.\n");
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return 0;
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}
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