ATGM332D-5N卫星定位模块如何与STM32F103C8T6连接的程序
时间: 2024-05-05 17:15:19 浏览: 168
以下是ATGM332D-5N卫星定位模块与STM32F103C8T6连接的示例程序:
```
#include <stdio.h>
#include "stm32f10x.h"
// ATGM332D-5N模块的串口配置
#define GPS_USART USART1
#define GPS_USART_CLK RCC_APB2Periph_USART1
#define GPS_USART_TX_PIN GPIO_Pin_9
#define GPS_USART_TX_GPIO_PORT GPIOA
#define GPS_USART_TX_GPIO_CLK RCC_APB2Periph_GPIOA
#define GPS_USART_RX_PIN GPIO_Pin_10
#define GPS_USART_RX_GPIO_PORT GPIOA
#define GPS_USART_RX_GPIO_CLK RCC_APB2Periph_GPIOA
// 定义接收数据缓冲区
#define GPS_RX_BUF_SIZE 256
uint8_t gps_rx_buffer[GPS_RX_BUF_SIZE];
uint8_t gps_rx_index = 0;
// 初始化USART1
void USART1_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
// 使能USART1和GPIOA的时钟
RCC_APB2PeriphClockCmd(GPS_USART_CLK | GPS_USART_TX_GPIO_CLK | GPS_USART_RX_GPIO_CLK, ENABLE);
// 配置USART1的TX引脚为复用推挽输出
GPIO_InitStructure.GPIO_Pin = GPS_USART_TX_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPS_USART_TX_GPIO_PORT, &GPIO_InitStructure);
// 配置USART1的RX引脚为浮空输入
GPIO_InitStructure.GPIO_Pin = GPS_USART_RX_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPS_USART_RX_GPIO_PORT, &GPIO_InitStructure);
// 配置USART1
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_USART, &USART_InitStructure);
// 使能USART1
USART_Cmd(GPS_USART, ENABLE);
// 配置USART1的中断
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);
// 使能USART1的接收中断
USART_ITConfig(GPS_USART, USART_IT_RXNE, ENABLE);
}
// USART1中断处理函数
void USART1_IRQHandler(void)
{
if (USART_GetITStatus(GPS_USART, USART_IT_RXNE) != RESET)
{
// 读取接收到的数据
uint8_t data = USART_ReceiveData(GPS_USART);
// 将数据存入接收缓冲区
gps_rx_buffer[gps_rx_index++] = data;
// 判断是否接收完成
if (gps_rx_index >= GPS_RX_BUF_SIZE)
{
gps_rx_index = 0;
}
}
}
int main(void)
{
// 初始化USART1
USART1_Init();
while (1)
{
// 在这里可以进行GPS数据的处理
// ...
// 延时一段时间
for (int i = 0; i < 500000; i++);
}
}
```
这个程序中,我们首先定义了ATGM332D-5N模块的串口配置,然后定义了接收数据缓冲区,并在初始化函数中配置了USART1的相关参数和中断。在主函数中,我们可以对接收到的GPS数据进行处理。需要注意的是,由于ATGM332D-5N模块的数据输出速率较慢,因此需要适当延时以避免数据丢失。
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