SU03t连接stm32的代码
时间: 2023-08-20 22:04:18 浏览: 102
以下是一个使用STM32的UART接收来自SU03T模块的GPS数据的示例代码:
```c
#include "stm32f10x.h"
#include "stdio.h"
#define GPS_UART USART1
#define GPS_UART_RCC RCC_APB2Periph_USART1
#define GPS_UART_GPIO_RCC RCC_APB2Periph_GPIOA
#define GPS_UART_GPIO GPIOA
#define GPS_UART_TX GPIO_Pin_9
#define GPS_UART_RX GPIO_Pin_10
void GPS_UART_Init(void);
void GPS_UART_Config(void);
void GPS_UART_IRQHandler(void);
void processGPSData(char *gpsData);
int main(void) {
GPS_UART_Init();
while(1) {
// 主程序代码
}
}
void GPS_UART_Init(void) {
GPS_UART_Config();
// 启用中断
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
USART_ITConfig(GPS_UART, USART_IT_RXNE, ENABLE);
}
void GPS_UART_Config(void) {
// 使能相关GPIO和UART外设时钟
RCC_APB2PeriphClockCmd(GPS_UART_RCC | GPS_UART_GPIO_RCC, ENABLE);
// 配置UART引脚
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPS_UART_TX;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPS_UART_GPIO, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPS_UART_RX;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPS_UART_GPIO, &GPIO_InitStructure);
// 配置UART外设
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 9600;
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_Mode_Tx;
USART_Init(GPS_UART, &USART_InitStructure);
// 启用UART外设
USART_Cmd(GPS_UART, ENABLE);
}
void GPS_UART_IRQHandler(void) {
if(USART_GetITStatus(GPS_UART, USART_IT_RXNE) != RESET) {
static uint8_t gpsIndex = 0;
static char gpsData[100] = {0};
gpsData[gpsIndex++] = USART_ReceiveData(GPS_UART);
if(gpsIndex >= 99) {
processGPSData(gpsData);
gpsIndex = 0;
memset(gpsData, 0, sizeof(gpsData));
}
}
}
void processGPSData(char *gpsData) {
// 解析GPS数据
// 处理GPS数据
}
```
以上代码中,我们使用的是STM32的USART1串口来接收来自SU03T模块的GPS数据。在主函数中,我们初始化并启用了USART1,并在其中启用了USART1的中断。在中断服务函数中,我们使用一个静态的字符数组来接收来自USART1的数据,并在接收到一定数量的数据(这里是100)后,调用`processGPSData`函数对GPS数据进行处理。在`processGPSData`函数中,您可以根据需要对GPS数据进行解析和处理。