forked from xuos/xiuos
107 lines
3.0 KiB
C
107 lines
3.0 KiB
C
/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file: test_rs485.c
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* @brief: a application of rs485 function
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* @version: 1.1
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* @author: AIIT XUOS Lab
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* @date: 2022/12/17
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*/
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#include <stdio.h>
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#include <string.h>
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#include <transform.h>
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#ifdef ADD_XIZI_FEATURES
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#define BSP_485_DIR_PIN 24
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void Test485(void)
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{
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int pin_fd = PrivOpen(RS485_PIN_DEV_DRIVER, O_RDWR);
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if (pin_fd < 0)
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{
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printf("open pin fd error:%d\n", pin_fd);
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return;
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}
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int uart_fd = PrivOpen(RS485_UART_DEV_DRIVER, O_RDWR);
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if (uart_fd < 0)
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{
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printf("open pin fd error:%d\n", uart_fd);
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return;
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}
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printf("uart and pin fopen success\n");
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//config led pin in board
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struct PinParam pin_parameter;
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memset(&pin_parameter, 0, sizeof(struct PinParam));
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pin_parameter.cmd = GPIO_CONFIG_MODE;
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pin_parameter.pin = BSP_485_DIR_PIN;
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pin_parameter.mode = GPIO_CFG_OUTPUT;
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struct PrivIoctlCfg ioctl_cfg;
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ioctl_cfg.ioctl_driver_type = PIN_TYPE;
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ioctl_cfg.args = (void *)&pin_parameter;
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if (0 != PrivIoctl(pin_fd, OPE_CFG, &ioctl_cfg)) {
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printf("ioctl pin fd error %d\n", pin_fd);
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PrivClose(pin_fd);
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return;
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}
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struct SerialDataCfg uart_cfg;
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memset(&uart_cfg, 0, sizeof(struct SerialDataCfg));
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uart_cfg.serial_baud_rate = BAUD_RATE_115200;
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uart_cfg.serial_data_bits = DATA_BITS_8;
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uart_cfg.serial_stop_bits = STOP_BITS_1;
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uart_cfg.serial_parity_mode = PARITY_NONE;
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uart_cfg.serial_bit_order = BIT_ORDER_LSB;
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uart_cfg.serial_invert_mode = NRZ_NORMAL;
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uart_cfg.serial_buffer_size = SERIAL_RB_BUFSZ;
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uart_cfg.serial_timeout = 1000;
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uart_cfg.is_ext_uart = 0;
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ioctl_cfg.ioctl_driver_type = SERIAL_TYPE;
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ioctl_cfg.args = (void *)&uart_cfg;
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if (0 != PrivIoctl(uart_fd, OPE_INT, &ioctl_cfg))
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{
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printf("ioctl uart fd error %d\n", uart_fd);
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PrivClose(uart_fd);
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return;
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}
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struct PinStat pin_dir;
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pin_dir.pin = BSP_485_DIR_PIN;
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while (1)
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{
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pin_dir.val = GPIO_HIGH;
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PrivWrite(pin_fd,&pin_dir,0);
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PrivWrite(uart_fd,"Hello world!\n",sizeof("Hello world!\n"));
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PrivTaskDelay(100);
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pin_dir.val = GPIO_LOW;
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PrivWrite(pin_fd,&pin_dir,0);
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char recv_buff[100];
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memset(recv_buff,0,sizeof(recv_buff));
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PrivRead(uart_fd,recv_buff,20);
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printf("%s",recv_buff);
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PrivTaskDelay(100);
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}
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PrivClose(pin_fd);
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PrivClose(uart_fd);
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return;
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}
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PRIV_SHELL_CMD_FUNCTION(Test485, a RS485 test sample, PRIV_SHELL_CMD_MAIN_ATTR);
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#endif |