modify linux

Ubiquitous/XiZi_IIoT/board/ch32v307vct6/board.c

@@ -58,10 +58,6 @@ static uint32_t _SysTick_Config(uint32_t ticks)
  * This function will initial your board.
  */
 
-extern RxBuffer2;
-extern uint16_t UART_ReceiveData(USART_TypeDef* USARTx);
-extern void UART_SendData(USART_TypeDef* USARTx, uint16_t Data);
-
 void InitBoardHardware()
 {
     _SysTick_Config(SystemCoreClock / TICK_PER_SECOND);
@@ -80,22 +76,4 @@ void InitBoardHardware()
 
     KPrintf("board init done.\n");
     KPrintf("start okernel...\n");
-
-    uint16_t ans = 0;
-    uint16_t recv_data = 0;
-    uint16_t send_data = 0;
-    int cnt = 0;
-    while (1) {
-
-        recv_data = UART_ReceiveData(USART3);
-
-        if (recv_data < 58 && recv_data > 47) {
-            ans = recv_data;
-
-            KPrintf("recv data: %d\n", ans - 48);
-        }
-        send_data = ans + 17;
-        KPrintf("send data: %d\n", send_data);
-        UART_SendData(USART3, send_data);
-    }
 }

Ubiquitous/XiZi_IIoT/board/ch32v307vct6/third_party_driver/uart/Makefile

@@ -1,4 +1,4 @@
-SRC_FILES := connect_uart.c
+SRC_FILES := connect_uart.c test_uart.c
 
 
 include $(KERNEL_ROOT)/compiler.mk

Ubiquitous/XiZi_IIoT/board/ch32v307vct6/third_party_driver/uart/linux_uart.c

@@ -0,0 +1,76 @@
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <termios.h>
+#include <unistd.h>
+
+int main()
+{
+    int fd;
+    struct termios tty;
+    char buffer[256];
+
+    // 打开串口设备
+    fd = open("/dev/ttySC3", O_RDWR | O_NOCTTY);
+    if (fd == -1) {
+        perror("打开串口失败");
+        return -1;
+    }
+
+    // 获取当前串口配置
+    if (tcgetattr(fd, &tty) != 0) {
+        perror("获取串口配置失败");
+        close(fd);
+        return -1;
+    }
+
+    // 设置波特率为9600
+    cfsetispeed(&tty, B9600);
+    cfsetospeed(&tty, B9600);
+
+    // 8位数据位，无校验位，1位停止位
+    tty.c_cflag &= ~PARENB;
+    tty.c_cflag &= ~CSTOPB;
+    tty.c_cflag &= ~CSIZE;
+    tty.c_cflag |= CS8;
+
+    // 非规范模式，禁止软件流控制
+    tty.c_iflag &= ~(IXON | IXOFF | IXANY);
+    tty.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
+
+    // 禁止输出回车换行和换行符的映射
+    tty.c_oflag &= ~OPOST;
+    tty.c_oflag &= ~ONLCR;
+
+    // 设置新的串口配置
+    if (tcsetattr(fd, TCSANOW, &tty) != 0) {
+        perror("设置串口配置失败");
+        close(fd);
+        return -1;
+    }
+
+    // 获取待读取数据的字节数
+    int bytes_available;
+    printf("读取中\n");
+    while (1) {
+        int res = ioctl(fd, TIOCINQ, &bytes_available);
+
+        if (res != -1) {
+            if (bytes_available > 0) {
+                // 读取串口数据
+                printf("read\n");
+                int bytes_read = read(fd, buffer, sizeof(buffer));
+                if (bytes_read > 0) {
+                    // 在这里处理读取到的数据
+                    printf("读取到的数据: %s\n", buffer);
+                }
+            }
+        }
+    }
+
+    // 关闭串口设备
+    close(fd);
+
+    return 0;
+}

Ubiquitous/XiZi_IIoT/board/ch32v307vct6/third_party_driver/uart/test_uart.c

@@ -0,0 +1,34 @@
+#include "ch32v30x.h"
+#include "connect_uart.h"
+
+extern RxBuffer2;
+extern uint16_t UART_ReceiveData(USART_TypeDef* USARTx);
+extern void UART_SendData(USART_TypeDef* USARTx, uint16_t Data);
+
+void send_rensa()
+{
+    char* s = "ch uart";
+    while (*s) {
+        UART_SendData(USART3, (uint16_t)*s++);
+        KPrintf("%c", *s);
+    }
+}
+
+void recv_rensa()
+{
+    uint16_t ans = 0;
+    char recv_data = ' ';
+
+    int cnt = 0;
+    while (recv_data != '\n') {
+        recv_data = (char)UART_ReceiveData(USART3);
+        KPrintf("%c", recv_data);
+    }
+    recv_data = ' ';
+}
+
+SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0) | SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN),
+    recv_rensa, recv_rensa, test receive renesa);
+
+SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0) | SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN),
+    send_rensa, send_rensa, test send renesa);