forked from xuos/xiuos
86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <transform.h>
|
|
|
|
#define BSP_485_DIR_PIN 24
|
|
|
|
void Test485(void)
|
|
{
|
|
int pin_fd = PrivOpen(RS485_PIN_DEV_DRIVER, O_RDWR);
|
|
if (pin_fd < 0)
|
|
{
|
|
printf("open pin fd error:%d\n", pin_fd);
|
|
return;
|
|
}
|
|
|
|
int uart_fd = PrivOpen(RS485_UART_DEV_DRIVER, O_RDWR);
|
|
if (uart_fd < 0)
|
|
{
|
|
printf("open pin fd error:%d\n", uart_fd);
|
|
return;
|
|
}
|
|
printf("uart and pin fopen success\n");
|
|
|
|
//config led pin in board
|
|
struct PinParam pin_parameter;
|
|
memset(&pin_parameter, 0, sizeof(struct PinParam));
|
|
pin_parameter.cmd = GPIO_CONFIG_MODE;
|
|
pin_parameter.pin = BSP_485_DIR_PIN;
|
|
pin_parameter.mode = GPIO_CFG_OUTPUT;
|
|
|
|
struct PrivIoctlCfg ioctl_cfg;
|
|
ioctl_cfg.ioctl_driver_type = PIN_TYPE;
|
|
ioctl_cfg.args = (void *)&pin_parameter;
|
|
|
|
if (0 != PrivIoctl(pin_fd, OPE_CFG, &ioctl_cfg)) {
|
|
printf("ioctl pin fd error %d\n", pin_fd);
|
|
PrivClose(pin_fd);
|
|
return;
|
|
}
|
|
|
|
struct SerialDataCfg uart_cfg;
|
|
memset(&uart_cfg, 0, sizeof(struct SerialDataCfg));
|
|
|
|
uart_cfg.serial_baud_rate = BAUD_RATE_115200;
|
|
uart_cfg.serial_data_bits = DATA_BITS_8;
|
|
uart_cfg.serial_stop_bits = STOP_BITS_1;
|
|
uart_cfg.serial_parity_mode = PARITY_NONE;
|
|
uart_cfg.serial_bit_order = BIT_ORDER_LSB;
|
|
uart_cfg.serial_invert_mode = NRZ_NORMAL;
|
|
uart_cfg.serial_buffer_size = SERIAL_RB_BUFSZ;
|
|
uart_cfg.serial_timeout = 1000;
|
|
uart_cfg.is_ext_uart = 0;
|
|
|
|
ioctl_cfg.ioctl_driver_type = SERIAL_TYPE;
|
|
ioctl_cfg.args = (void *)&uart_cfg;
|
|
|
|
if (0 != PrivIoctl(uart_fd, OPE_INT, &ioctl_cfg))
|
|
{
|
|
printf("ioctl uart fd error %d\n", uart_fd);
|
|
PrivClose(uart_fd);
|
|
return;
|
|
}
|
|
|
|
struct PinStat pin_dir;
|
|
pin_dir.pin = BSP_485_DIR_PIN;
|
|
while (1)
|
|
{
|
|
pin_dir.val = GPIO_HIGH;
|
|
PrivWrite(pin_fd,&pin_dir,0);
|
|
PrivWrite(uart_fd,"Hello world!\n",sizeof("Hello world!\n"));
|
|
PrivTaskDelay(100);
|
|
|
|
pin_dir.val = GPIO_LOW;
|
|
PrivWrite(pin_fd,&pin_dir,0);
|
|
char recv_buff[100];
|
|
memset(recv_buff,0,sizeof(recv_buff));
|
|
PrivRead(uart_fd,recv_buff,20);
|
|
printf("%s",recv_buff);
|
|
PrivTaskDelay(100);
|
|
}
|
|
PrivClose(pin_fd);
|
|
PrivClose(uart_fd);
|
|
return;
|
|
}
|
|
|
|
PRIV_SHELL_CMD_FUNCTION(Test485, a RS485 test sample, PRIV_SHELL_CMD_MAIN_ATTR); |