基于FPGA的VL53LXX测距
时间: 2023-11-27 18:47:24 浏览: 34
很抱歉,根据提供的引用内容,我没有找到关于基于FPGA的VL53LXX测距的信息。可以为您介绍一下VL53LXX测距的基本原理和使用方法,以及如何在STM32上使用VL53LXX模块进行测距。
VL53LXX测距模块是一种基于ToF(Time of Flight)原理的测距模块,ToF是通过测量光线从发射到接收所需的时间来计算距离的一种技术。VL53LXX模块内置了激光发射器和接收器,可以通过I2C接口与MCU进行通信,实现测距功能。
在STM32上使用VL53LXX模块进行测距,需要先进行硬件连接,将VL53LXX模块的VIN引脚连接到STM32的5V电源引脚,GND引脚连接到STM32的GND引脚,SCL引脚连接到STM32的I2C时钟引脚,SDA引脚连接到STM32的I2C数据引脚。然后在STM32的代码中,使用I2C接口与VL53LXX模块进行通信,读取模块返回的测距数据即可。
以下是使用VL53LXX模块进行测距的示例代码:
```c
#include "vl53l0x_api.h"
#include "vl53l0x_platform.h"
VL53L0X_Dev_t dev;
VL53L0X_RangingMeasurementData_t data;
void VL53L0X_Init(void)
{
int status;
uint8_t byteData;
dev.I2cDevAddr = 0x52;
status = VL53L0X_WrByte(&dev, 0x88, 0x00);
status = VL53L0X_WrByte(&dev, 0x80, 0x01);
status = VL53L0X_WrByte(&dev, 0xFF, 0x01);
status = VL53L0X_RdByte(&dev, 0x84, &byteData);
status = VL53L0X_WrByte(&dev, 0x84, byteData & 0xFE);
status = VL53L0X_WrByte(&dev, 0xFF, 0x00);
status = VL53L0X_WrByte(&dev, 0x80, 0x00);
status = VL53L0X_SetDeviceAddress(&dev, 0x52 << 1);
status = VL53L0X_DataInit(&dev);
status = VL53L0X_StaticInit(&dev);
status = VL53L0X_PerformRefCalibration(&dev, &byteData);
status = VL53L0X_PerformRefSpadManagement(&dev, &byteData);
status = VL53L0X_SetXTalkCompensationEnable(&dev, 0);
status = VL53L0X_SetMeasurementTimingBudgetMicroSeconds(&dev, 20000);
status = VL53L0X_SetInterMeasurementPeriodMilliSeconds(&dev, 100);
status = VL53L0X_StartMeasurement(&dev);
}
void VL53L0X_GetDistance(uint16_t *distance)
{
int status;
status = VL53L0X_GetRangingMeasurementData(&dev, &data);
*distance = data.RangeMilliMeter;
status = VL53L0X_ClearInterruptMask(&dev, 0);
status = VL53L0X_StartMeasurement(&dev);
}
int main(void)
{
uint16_t distance;
VL53L0X_Init();
while (1)
{
VL53L0X_GetDistance(&distance);
// 处理测距数据
}
}
```