85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
/*
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* @Author: mypx
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* @Date: 2025-10-15 16:24:26
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* @LastEditTime: 2025-10-22 08:44:30
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* @LastEditors: mypx mypx_coder@163.com
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* @Description:
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*/
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#include "bsp_hmi.h"
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#include "usart.h"
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#include "rtthread.h"
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#include "et_log.h"
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struct rt_messagequeue mb_hmi_mq;
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static char mq_pool[MB_HMI_RX_QUEUE_SIZE];
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#if (DEBUG_MB_ENABLE == 1)
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#define DBG_MB(...) ET_DBG("[MB] " __VA_ARGS__)
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#else
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#define DBG_MB(...)
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#endif
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int bsp_mb_hmi_init(void)
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{
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MX_USART1_UART_Init(); // used tx
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MX_USART2_UART_Init(); // used rx
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rt_err_t result = rt_mq_init(&mb_hmi_mq, "mb_hmi_mq", mq_pool, 1, MB_HMI_RX_QUEUE_SIZE, RT_IPC_FLAG_FIFO);
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if (result != RT_EOK)
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{
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ET_ERR("mb_hmi mq init failed\n");
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return -1;
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}
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__HAL_UART_ENABLE_IT(&HMI_COM, UART_IT_RXNE);
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return 0;
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}
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int32_t bsp_hmi_uart_read(uint8_t *buf, uint16_t count, int32_t byte_timeout_ms, void *arg)
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{
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UNUSED(arg);
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uint16_t bytes_read = 0;
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uint8_t byte;
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rt_tick_t timeout_ticks = rt_tick_from_millisecond(byte_timeout_ms);
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DBG_MB("start read:count:%d, timeout:%d\n", count, byte_timeout_ms);
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while (bytes_read < count)
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{
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rt_err_t result = rt_mq_recv(&mb_hmi_mq, &byte, sizeof(byte), timeout_ticks);
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if (result == RT_EOK)
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{
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DBG_MB("rx: %02X\n", byte);
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buf[bytes_read++] = byte;
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}
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else
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{
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if (bytes_read > 0)
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{
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DBG_MB("Modbus read finished %d\n", bytes_read);
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return bytes_read;
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}
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DBG_MB("HMI read timeout, no data received\n");
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return 0;
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}
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}
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DBG_MB("Actually read:%d, count:%d\r\n", bytes_read, count);
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return bytes_read;
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}
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int32_t bsp_hmi_uart_write(const uint8_t *buf, uint16_t count, int32_t byte_timeout_ms, void *arg)
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{
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UNUSED(arg);
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rt_thread_mdelay(2);
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if (HAL_UART_Transmit(&HMI_COM, buf, count, byte_timeout_ms) == HAL_OK)
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{
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ET_DBG("HMI write:%d", count);
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return count;
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}
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else
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{
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return 0;
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}
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} |