adxl335B的三个轴数据怎么读
时间: 2024-05-15 07:16:06 浏览: 170
ADXL335B是一款三轴加速度传感器,它可以测量在X、Y、Z三个轴向上的加速度。要读取ADXL335B的三个轴数据,需要连接它的输出引脚到微控制器的GPIO,并使用相应的代码进行读取。
以下是读取ADXL335B三个轴数据的示例代码(使用Arduino板):
```
const int xPin = A0; //连接到X轴输出引脚
const int yPin = A1; //连接到Y轴输出引脚
const int zPin = A2; //连接到Z轴输出引脚
void setup() {
Serial.begin(9600); //打开串口通信
}
void loop() {
int xVal = analogRead(xPin); //读取X轴数据
int yVal = analogRead(yPin); //读取Y轴数据
int zVal = analogRead(zPin); //读取Z轴数据
//输出读取的数据
Serial.print("X轴:");
Serial.print(xVal);
Serial.print(" Y轴:");
Serial.print(yVal);
Serial.print(" Z轴:");
Serial.println(zVal);
delay(100); //延时100毫秒
}
```
上述代码中,使用analogRead函数从每个轴的引脚读取数据,并使用Serial.print函数将数据输出到串口。可以通过串口监视器查看输出的数据。
相关问题
Stm32读adxl335B三个轴数据完整的代码
以下是STM32读取ADXL335B三轴数据的完整代码:
```
#include "stm32f4xx.h"
#define CS_HIGH() GPIO_SetBits(GPIOA, GPIO_Pin_4)
#define CS_LOW() GPIO_ResetBits(GPIOA, GPIO_Pin_4)
void SPI_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
SPI_InitTypeDef SPI_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource5, GPIO_AF_SPI1);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource6, GPIO_AF_SPI1);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource7, GPIO_AF_SPI1);
SPI_I2S_DeInit(SPI1);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI1, &SPI_InitStructure);
SPI_Cmd(SPI1, ENABLE);
}
void ADXL335_Init(void)
{
CS_HIGH();
SPI_Configuration();
CS_LOW();
SPI_I2S_SendData(SPI1, 0x31);
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);
SPI_I2S_ReceiveData(SPI1);
SPI_I2S_SendData(SPI1, 0x0B);
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);
SPI_I2S_ReceiveData(SPI1);
CS_HIGH();
}
int ADXL335_ReadData(uint8_t reg)
{
uint8_t data[2];
CS_LOW();
SPI_I2S_SendData(SPI1, reg);
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);
SPI_I2S_ReceiveData(SPI1);
SPI_I2S_SendData(SPI1, 0x00);
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);
data[0] = SPI_I2S_ReceiveData(SPI1);
SPI_I2S_SendData(SPI1, 0x00);
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);
data[1] = SPI_I2S_ReceiveData(SPI1);
CS_HIGH();
return ((data[1] << 8) | data[0]);
}
int main(void)
{
int x, y, z;
ADXL335_Init();
while (1)
{
x = ADXL335_ReadData(0x32);
y = ADXL335_ReadData(0x34);
z = ADXL335_ReadData(0x36);
printf("X = %d, Y = %d, Z = %d\n", x, y, z);
}
}
```
在主函数中,首先调用`ADXL335_Init()`函数进行ADXL335的初始化。然后进入一个无限循环中,不断读取ADXL335的X、Y、Z轴数据,并通过串口输出。`ADXL335_ReadData()`函数用于读取ADXL335的寄存器数据,需要传入寄存器地址作为参数。`SPI_Configuration()`函数用于配置STM32的SPI接口。`CS_HIGH()`和`CS_LOW()`函数用于控制SPI接口的片选信号。
Stm32把倾角芯片adxl335B的三个轴数据读出来
需要使用stm32的ADC模块读取ADXL335B芯片输出的模拟信号,然后进行转换和处理得到倾角数据。以下是一个简单的示例代码:
```c
#include "stm32f10x.h"
#define ADC1_DR_Address ((u32)0x4001244C)
void ADC_Configuration(void);
u16 Get_Adc(u8 ch);
int main(void)
{
ADC_Configuration(); // 配置ADC模块
// 读取三个轴的倾角数据
u16 x_angle = Get_Adc(0);
u16 y_angle = Get_Adc(1);
u16 z_angle = Get_Adc(2);
// 处理倾角数据...
}
void ADC_Configuration(void)
{
ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
ADC_DeInit(ADC1);
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 3;
ADC_Init(ADC1, &ADC_InitStructure);
ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 2, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 3, ADC_SampleTime_55Cycles5);
ADC_Cmd(ADC1, ENABLE);
ADC_ResetCalibration(ADC1);
while(ADC_GetResetCalibrationStatus(ADC1));
ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1));
}
u16 Get_Adc(u8 ch)
{
ADC_RegularChannelConfig(ADC1, ch, 1, ADC_SampleTime_55Cycles5);
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC));
return ADC_GetConversionValue(ADC1);
}
```
需要注意的是,ADXL335B的三个轴输出信号是模拟信号,需要经过ADC模块进行转换才能得到数字信号。在上述代码中,我们使用了ADC1模块,通过配置ADC的扫描模式和使用DMA传输数据,可以同时读取三个轴的倾角数据。最后,我们可以对读取到的数据进行处理,得到倾角信息。
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