30 lines
859 B
C
30 lines
859 B
C
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#include "LM75A.h"
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#include "stm32f4xx_hal.h"
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#include "i2c.h"
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#include "usart.h"
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/**************************************************
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@brif <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>豸ģʽ
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@para ConfReg:<EFBFBD><EFBFBD><EFBFBD>üĴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
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Mode:<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ģʽ
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@rev: <EFBFBD><EFBFBD>
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****************************************************/
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void LM75SetMode(uint8_t ConfReg, uint8_t Mode)
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{
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while(HAL_I2C_Mem_Write(&hi2c1,LM75A_ADDR,ConfReg,1,&Mode,1,100) != HAL_OK); //дģʽ<C4A3>Ĵ<EFBFBD><C4B4><EFBFBD>
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}
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uint16_t LM75GetTempReg(void) //<2F><>LM75A<35><41>ȡ<EFBFBD>¶<EFBFBD><C2B6><EFBFBD><EFBFBD>ݣ<EFBFBD>2<EFBFBD>ֽڣ<D6BD><DAA3><EFBFBD>
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{
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uint8_t data[2];
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while(HAL_I2C_Mem_Read(&hi2c1,LM75A_ADDR,TEMP_ADDR,I2C_MEMADD_SIZE_8BIT,data,2,100)!=HAL_OK);
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return (data[0]<<8) + data[1];
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}
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double LM75GetTempValue(uint16_t tempreg) //<2F><><EFBFBD>¶<EFBFBD><C2B6><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>Ϊ<EFBFBD>¶<EFBFBD>ֵ
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{
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if (tempreg >> 15 == 0)
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return (double)(tempreg >> 5) * 0.125;
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else return -1*(double)(((~tempreg)>>5) + 1)*0.125;
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}
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