ATT7022 读出来的ID数值不对求大神》》》》

黑白灰123 · 发表于 2019-7-30 14:19:00

读出来的数是0x00389150 而手册上的地址是0x0071220A 是有哪里不对吗

#include "ATT7022EU.h"

void ATT7022_Init(void){

    GPIO_InitTypeDef  GPIO_InitStructure;

/* SPI的IO口和SPI外设打开时钟 */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

/* SPI的IO口设置 */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);

ATT7022_CS_1;

SPI2_Init();

SPI2_SetSpeed(SPI_BaudRatePrescaler_2);

}

uint32_t HT7038_Read(uint8_t addr){

  uint32_t data = 0;
  uint8_t buff = 0;
  ATT7022_CS_0;

  SPI2_ReadWriteByte(addr);

  ATT7022_DELAY(2);
  buff = SPI2_ReadWriteByte(0);
  data|=buff;
  data<<=8;
  buff = SPI2_ReadWriteByte(0);
  data|=buff;
  data<<=8;
  buff = SPI2_ReadWriteByte(0);
  data|=buff;

  ATT7022_CS_1;

  return data;

}

void HT7038_Write(u8 addr, u32 value)    //写寄存器
{

      ATT7022_CS_0;
      SPI2_ReadWriteByte(addr|0x80);
      SPI2_ReadWriteByte(value>>16);
      SPI2_ReadWriteByte(value>>8);
      SPI2_ReadWriteByte(value);
      ATT7022_CS_1;       //SPI_CS = 1 ;
}