98 lines
2.4 KiB
C
98 lines
2.4 KiB
C
// #include <stdio.h>
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#include <string.h>
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#include "FreeRTOS.h"
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#include "task.h"
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#include "hart.h"
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#include "gpio.h"
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void hart_send(UART_HandleTypeDef *huart, uint8_t *data)
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{
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usart_printf(huart, (char *)data);
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}
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void parse_scom_hart(st_scom *scom)
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{
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if (scom == &scom1_hart)
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{
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scom->rx_flag = FALSE;
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if ((scom->rx_buff[0] == 0xff) && (scom->rx_buff[1] == 0xff) && (scom->rx_buff[scom->rx_len - 1] == 0xAA))
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{
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;
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}
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scom->tx_flag = TRUE;
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scom->rx_len = 0;
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}
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}
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void hart_communicate(st_scom *scom)
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{
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uint8_t hart_data_test[18] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0xaa};
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HART_RTS(RTS_OFF);
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if (scom->rx_flag == TRUE)
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{
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scom->rx_flag = FALSE;
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parse_scom_hart(scom);
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}
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// scom->tx_flag = TRUE;
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if (scom->tx_flag == TRUE)
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{
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scom->tx_flag = FALSE;
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HART_RTS(RTS_ON);
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vTaskDelay(5);
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memcpy(scom->tx_buff, hart_data_test, sizeof(hart_data_test));
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hart_send(&huart1, scom->tx_buff);
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HART_RTS(RTS_OFF);
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}
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}
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//DEVICE <---SIG---> PC
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//将来自设备的HART数据装载至com485_tx，将comhart_tx的HART数据发送至设备
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void transparent_hart(st_scom *scom)
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{
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if (scom != &scom1_hart) return;
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HART_RTS(RTS_OFF);
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//来自HART设备的数据是否接收完成
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if (scom->rx_flag == TRUE)
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{
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scom->rx_flag = FALSE;
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//接收到的数据是否符合HART数据报，符合则写入485的tx，准备发送至上位机
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if ((scom->rx_buff[0] == 0xff) && (scom->rx_buff[1] == 0xff) && (scom->rx_buff[scom->rx_len - 1] == 0xAA))
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{
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//SIG -> PC
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memcpy(scom2_rs485.tx_buff, scom->rx_buff, sizeof(scom->rx_buff));
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scom2_rs485.tx_len = scom->rx_len;
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scom2_rs485.tx_flag = TRUE;
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}
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//清空缓存区，等待新的数据
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memset(scom->rx_buff, 0, sizeof(scom->rx_buff));
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scom->rx_len = 0;
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}
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//来自上位机的数据是否准备完毕
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if (scom->tx_flag == TRUE)
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{
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scom->tx_flag = FALSE;
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HART_RTS(RTS_ON);
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vTaskDelay(5);
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//将tx中的数据发送至HART设备
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hart_send(&huart1, scom->tx_buff);
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HART_RTS(RTS_OFF);
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//清空缓存区，等待新的数据
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memset(scom->tx_buff, 0, sizeof(scom->tx_buff));
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scom->tx_len = 0;
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}
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}
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