对以下问题生成代码:基于stm32f103ZE的课程设计,LCD显示串口数据,要求在显示屏上显示从串口输入的数据,可以选择 16 进制显示方式和 ASCII 码显示方式,可以显示输入字节数统 计。(要求使用rtx_os操作系统完成)
时间: 2024-03-07 17:47:21 浏览: 94
好的,下面是一份基于STM32F103ZE的课程设计代码,实现了串口数据在LCD上的显示,支持16进制和ASCII码显示方式,并能够显示输入字节数统计。该代码使用了RTX_OS操作系统。
```c
// 头文件引用
#include "cmsis_os.h"
#include "stm32f10x.h"
#include "stdio.h"
#include "string.h"
#include "LCD.h"
// 宏定义
#define RX_BUF_SIZE 256
// 全局变量
uint8_t rx_buf[RX_BUF_SIZE];
uint16_t rx_buf_head = 0;
uint16_t rx_buf_tail = 0;
uint16_t rx_buf_count = 0;
uint32_t hex_disp_flag = 0;
uint32_t ascii_disp_flag = 0;
uint32_t byte_count = 0;
// 信号量定义
osSemaphoreId_t sem_lcd_mutex;
osSemaphoreId_t sem_uart_mutex;
osSemaphoreId_t sem_uart_data;
// 任务定义
void task_uart_receive(void *argument);
void task_lcd_display(void *argument);
// 中断处理函数
void USART1_IRQHandler(void)
{
osSemaphoreAcquire(sem_uart_mutex, osWaitForever);
if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
uint8_t data = (uint8_t)USART_ReceiveData(USART1);
if (rx_buf_count < RX_BUF_SIZE)
{
rx_buf[rx_buf_tail] = data;
rx_buf_tail = (rx_buf_tail + 1) % RX_BUF_SIZE;
rx_buf_count++;
byte_count++;
}
}
osSemaphoreRelease(sem_uart_mutex);
}
// 主函数
int main(void)
{
// 初始化操作系统
osKernelInitialize();
// 创建信号量
sem_lcd_mutex = osSemaphoreNew(1, 1, NULL);
sem_uart_mutex = osSemaphoreNew(1, 1, NULL);
sem_uart_data = osSemaphoreNew(1, 0, NULL);
// 创建任务
osThreadNew(task_uart_receive, NULL, NULL);
osThreadNew(task_lcd_display, NULL, NULL);
// 初始化串口和LCD
USART_InitTypeDef USART_InitStructure;
USART_StructInit(&USART_InitStructure);
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx;
USART_Init(USART1, &USART_InitStructure);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
USART_Cmd(USART1, ENABLE);
LCD_Init();
// 启动操作系统
osKernelStart();
// 死循环
while (1)
{
}
}
// 任务: 串口接收
void task_uart_receive(void *argument)
{
while (1)
{
osSemaphoreAcquire(sem_uart_data, osWaitForever);
osSemaphoreAcquire(sem_uart_mutex, osWaitForever);
uint8_t data = rx_buf[rx_buf_head];
rx_buf_head = (rx_buf_head + 1) % RX_BUF_SIZE;
rx_buf_count--;
osSemaphoreRelease(sem_uart_mutex);
if (hex_disp_flag)
{
char hex_str[3];
sprintf(hex_str, "%02X", data);
osSemaphoreAcquire(sem_lcd_mutex, osWaitForever);
LCD_Puts(hex_str);
osSemaphoreRelease(sem_lcd_mutex);
}
else if (ascii_disp_flag)
{
osSemaphoreAcquire(sem_lcd_mutex, osWaitForever);
LCD_Putc(data);
osSemaphoreRelease(sem_lcd_mutex);
}
osDelay(10);
}
}
// 任务: LCD显示
void task_lcd_display(void *argument)
{
while (1)
{
osSemaphoreAcquire(sem_lcd_mutex, osWaitForever);
// 清屏
LCD_Clear();
// 显示字节数统计
char byte_count_str[20];
sprintf(byte_count_str, "Bytes: %d", byte_count);
LCD_Puts(byte_count_str);
// 显示数据
if (hex_disp_flag)
{
LCD_SetCursor(0, 1);
LCD_Puts("HEX: ");
}
else if (ascii_disp_flag)
{
LCD_SetCursor(0, 1);
LCD_Puts("ASCII: ");
}
osSemaphoreRelease(sem_lcd_mutex);
osDelay(100);
}
}
// 中断回调函数
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
osSemaphoreRelease(sem_uart_data);
}
// 外部函数
void set_hex_disp_flag(uint32_t flag)
{
hex_disp_flag = flag;
ascii_disp_flag = 0;
}
void set_ascii_disp_flag(uint32_t flag)
{
ascii_disp_flag = flag;
hex_disp_flag = 0;
}
```
以上代码是一个基本的框架,需要根据实际情况进行调整和完善。
阅读全文