stm32 gy-53-l1测距
时间: 2023-07-02 18:08:23 浏览: 186
GY-53-L1是一款激光测距模块,采用ToF(Time of Flight)技术,可以实现高精度的距离测量。在STM32控制器上使用GY-53-L1进行测距需要进行以下步骤:
1. 硬件连接:将GY-53-L1的VCC、GND和SCL、SDA引脚分别连接到STM32控制器的对应引脚上。
2. 初始化I2C接口:GY-53-L1模块使用I2C接口与STM32控制器通信,需要先初始化I2C接口。
3. 发送测距命令:向GY-53-L1发送测距命令,等待模块返回数据。
4. 解析数据:将从GY-53-L1模块返回的数据解析出距离信息。
以下是一个简单的代码示例:
```c
#include "stm32f4xx.h"
#include "gy-53-l1.h"
int main(void)
{
GY53L1_Init(); // 初始化I2C接口
while (1)
{
uint16_t distance = GY53L1_MeasureDistance(); // 发送测距命令并获取距离信息
// 处理距离信息
}
}
```
相关问题
stm32 gy-53-l1测距usart.c代码
以下是使用USART通信实现STM32与GY-53-L1测距模块进行通信的示例代码:
```
#include "stm32f10x.h"
#include <stdio.h>
// 定义USART相关的GPIO口
#define USARTx USART1
#define USARTx_CLK RCC_APB2Periph_USART1
#define USARTx_TX_PIN GPIO_Pin_9
#define USARTx_TX_GPIO_PORT GPIOA
#define USARTx_TX_GPIO_CLK RCC_APB2Periph_GPIOA
#define USARTx_RX_PIN GPIO_Pin_10
#define USARTx_RX_GPIO_PORT GPIOA
#define USARTx_RX_GPIO_CLK RCC_APB2Periph_GPIOA
// 定义USART接收缓冲区大小
#define USART_RX_BUF_SIZE 100
// 定义发送和接收状态
#define USART_SENDING 0
#define USART_RECEIVING 1
// 定义USART接收缓冲区
uint8_t USART_RX_BUF[USART_RX_BUF_SIZE];
uint16_t USART_RX_STA = 0;
uint8_t USART_RX_STATUS = USART_RECEIVING;
// USART初始化函数
void USART_Config(void)
{
USART_InitTypeDef USART_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(USARTx_CLK | USARTx_TX_GPIO_CLK | USARTx_RX_GPIO_CLK, ENABLE);
// 配置USARTx_TX的GPIO口
GPIO_InitStructure.GPIO_Pin = USARTx_TX_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStructure);
// 配置USARTx_RX的GPIO口
GPIO_InitStructure.GPIO_Pin = USARTx_RX_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_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(USARTx, &USART_InitStructure);
USART_Cmd(USARTx, ENABLE);
}
// USART发送一个字节
void USART_SendByte(USART_TypeDef *USARTx, uint8_t byte)
{
while (USART_GetFlagStatus(USARTx, USART_FLAG_TXE) == RESET);
USART_SendData(USARTx, byte);
}
// USART发送字符串
void USART_SendString(USART_TypeDef *USARTx, char *str)
{
while (*str)
{
USART_SendByte(USARTx, *str++);
}
}
// USART接收中断处理函数
void USART1_IRQHandler(void)
{
uint8_t ch;
if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
ch = USART_ReceiveData(USART1);
// 如果接收到换行符,则表示一行数据接收完成
if (ch == '\n' || ch == '\r')
{
USART_RX_BUF[USART_RX_STA++] = ch;
USART_RX_STATUS = USART_SENDING;
}
else
{
USART_RX_BUF[USART_RX_STA++] = ch;
if (USART_RX_STA >= USART_RX_BUF_SIZE)
{
USART_RX_STATUS = USART_SENDING;
}
else
{
USART_RX_STATUS = USART_RECEIVING;
}
}
}
}
int main(void)
{
uint32_t distance;
USART_Config();
// 使能接收中断
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
while (1)
{
// 发送获取距离命令
USART_SendString(USART1, "AT+DIST?\r\n");
// 等待接收到距离数据
while (USART_RX_STATUS == USART_RECEIVING);
// 解析距离数据
sscanf((const char *)USART_RX_BUF, "+DIST:%ldmm", &distance);
printf("Distance: %ldmm\r\n", distance);
// 清空接收缓冲区和状态
USART_RX_STA = 0;
USART_RX_STATUS = USART_RECEIVING;
// 延时一段时间
Delay(1000);
}
}
```
在上述代码中,使用USART1与GY-53-L1测距模块进行通信,通过发送"AT+DIST?"命令获取距离数据。当接收到一行数据时,会将数据存储到USART_RX_BUF缓冲区中,直到接收到换行符或缓冲区已满。然后从缓冲区中解析出距离数据,并打印到串口终端上。最后清空接收缓冲区和状态,并延时一段时间再次发送命令。
stm32f1与GY-53-L1测距代码
以下是使用 STM32F1 和 GY-53-L1 模块进行测距的示例代码:
```c
#include "stm32f10x.h"
#include "stdio.h"
#define I2C_SPEED 100000
#define GY53L1_ADDR 0x42
void I2C_Configuration(void);
void I2C_WriteByte(uint8_t addr, uint8_t reg, uint8_t val);
uint8_t I2C_ReadByte(uint8_t addr, uint8_t reg);
void GY53L1_Init(void);
uint16_t GY53L1_ReadDistance(void);
int main(void)
{
uint16_t distance;
char str[20];
I2C_Configuration();
GY53L1_Init();
while (1)
{
distance = GY53L1_ReadDistance();
sprintf(str, "distance: %d mm\r\n", distance);
printf(str);
delay_ms(500);
}
}
void I2C_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
I2C_InitTypeDef I2C_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
GPIO_Init(GPIOB, &GPIO_InitStructure);
I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;
I2C_InitStructure.I2C_OwnAddress1 = 0x00;
I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C_InitStructure.I2C_ClockSpeed = I2C_SPEED;
I2C_Init(I2C1, &I2C_InitStructure);
I2C_Cmd(I2C1, ENABLE);
}
void I2C_WriteByte(uint8_t addr, uint8_t reg, uint8_t val)
{
while (I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY))
;
I2C_GenerateSTART(I2C1, ENABLE);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT))
;
I2C_Send7bitAddress(I2C1, addr, I2C_Direction_Transmitter);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED))
;
I2C_SendData(I2C1, reg);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED))
;
I2C_SendData(I2C1, val);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED))
;
I2C_GenerateSTOP(I2C1, ENABLE);
}
uint8_t I2C_ReadByte(uint8_t addr, uint8_t reg)
{
uint8_t val;
while (I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY))
;
I2C_GenerateSTART(I2C1, ENABLE);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT))
;
I2C_Send7bitAddress(I2C1, addr, I2C_Direction_Transmitter);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED))
;
I2C_SendData(I2C1, reg);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED))
;
I2C_GenerateSTART(I2C1, ENABLE);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT))
;
I2C_Send7bitAddress(I2C1, addr, I2C_Direction_Receiver);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED))
;
I2C_AcknowledgeConfig(I2C1, DISABLE);
I2C_GenerateSTOP(I2C1, ENABLE);
while (I2C_GetFlagStatus(I2C1, I2C_FLAG_RXNE) == RESET)
;
val = I2C_ReceiveData(I2C1);
return val;
}
void GY53L1_Init(void)
{
I2C_WriteByte(GY53L1_ADDR, 0x00, 0x51);
}
uint16_t GY53L1_ReadDistance(void)
{
uint8_t msb = I2C_ReadByte(GY53L1_ADDR, 0x8f);
uint8_t lsb = I2C_ReadByte(GY53L1_ADDR, 0x10);
return ((uint16_t) msb << 8) | lsb;
}
```
以上代码中,`I2C_Configuration` 函数用于配置 I2C 总线,`I2C_WriteByte` 和 `I2C_ReadByte` 函数分别用于向 GY-53-L1 模块写入和读取数据,`GY53L1_Init` 函数用于初始化 GY-53-L1 模块,`GY53L1_ReadDistance` 函数用于读取距离数据。在 `main` 函数中,循环读取距离数据并输出。注意,以上代码未包含延时函数的实现,需要自行实现或使用外部库。
阅读全文