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標(biāo)題: stm32 壓力傳感器驅(qū)動(dòng) [打印本頁]

作者: xiaozi1111 時(shí)間: 2018-2-9 13:25
標(biāo)題: stm32 壓力傳感器驅(qū)動(dòng)
#include "stm32l1xx.h"
#include "pressure.h"
#include "string.h"
#define             SCK_HIGH          GPIO_WriteBit(GPIOB,GPIO_Pin_1,Bit_SET)
#define             SCK_LOW          GPIO_WriteBit(GPIOB,GPIO_Pin_1,Bit_RESET)
#define             DT                GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_0)

struct PressureDefine Pressure_Define={0};

void Pressure_Config(struct PressureDefine defines)
{
GPIO_InitTypeDef  GPIO_InitStructure;

struct PressureDefine def = defines;

memcpy(&Pressure_Define,&defines,sizeof(struct PressureDefine));

GPIO_InitStructure.GPIO_Pin = def.pin_of_dt;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(def.pin_of_dt_group, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = def.pin_of_sck;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(def.pin_of_sck_group, &GPIO_InitStructure);
}

unsigned long ReadCount(void)
{
unsigned long Count = 0;
   uint8_t i;
   SCK_LOW;
   while(DT);
   for(i=0;i<24;i++)
      {
      SCK_HIGH;
      Count=Count<<1;
      SCK_LOW;
      if(DT)
      Count++;
      }
      SCK_HIGH;
      Count=Count^0x800000;
      SCK_LOW;
      return Count;
}

作者: ljw285 時(shí)間: 2018-3-18 16:23
請(qǐng)問下用的是什么壓力傳感器

作者: xiaozi1111 時(shí)間: 2018-10-9 17:38

ljw285 發(fā)表于 2018-3-18 16:23
請(qǐng)問下用的是什么壓力傳感器

HX711

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