STM32

ADXL345数据输出问题

2019-07-21 01:40发布

站内问答 / STM32/STM8
12061 16 1385
[mw_shl_code=c,true] while(ADXL345_Init()) //3D加速度传感器初始化 { printf("ADXL345 Error "); delay_ms(200); delay_ms(200); LED_GREEN_flash = 0; } printf("ADXL345 OK "); [/mw_shl_code]
[mw_shl_code=c,true] ADXL345_Read_Average(&x,&y,&z,10); // ADXL345_RD_XYZ(&Acceleration_x,&Acceleration_y,&Acceleration_z); printf("x = %d ",x); printf("y = %d ",y); printf("z = %d ",z); delay_ms(50); [/mw_shl_code] 50ms读取输出一次  代码是战舰版复制过来的


x = 17y = 0z = 0
x = 17y = 0z = 0
x = 17y = 0z = 0
x = 15y = 0z = 0
x = 17y = 0z = 0
x = 17y = 0z = 0
x = 18y = 0z = 0
x = 17y = 0z = 0
x = 16y = 0z = 0
x = 17y = 0z = 0
x = 16y = 0z = 0
x = 17y = 0z = 0
打印出来就是这个样子 y和z一直是0  变化板子时 只有x变化



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16条回答
ceeu
2019-07-22 16:43
SDA -----PB0
SCL -----PB1
INT1-----PB12
INT0-----PB13
[mw_shl_code=c,true] void IIC_Init(void) { GPIO_InitTypeDef GPIO_InitStructure; //RCC->APB2ENR|=1<<4;//?????????èIO PORTB?±?? RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB, ENABLE ); //SDA PB0 SCL PB1 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1|GPIO_Pin_0; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP ; //???ì???? GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOB, &GPIO_InitStructure); GPIO_SetBits(GPIOB,GPIO_Pin_0|GPIO_Pin_1); //PE.5 ?????? IIC_SCL=1; IIC_SDA=1; }[/mw_shl_code]
[mw_shl_code=c,true]#define SDA_IN() {GPIOB->CRL&=0XFFFFFFF0;GPIOB->CRL|=8<<0;} #define SDA_OUT() {GPIOB->CRL&=0XFFFFFFF0;GPIOB->CRL|=3<<0;} #define IIC_SCL PBout(1) //SCL #define IIC_SDA PBout(0) //SDA #define READ_SDA PBin(0) //????SDA [/mw_shl_code]
还有什么地方是不对的  求解

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