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guishenking
2026-03-20 21:16:58 +08:00
parent 286ff98b8e
commit 90c3d919df
248 changed files with 94554 additions and 0 deletions
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110
user/Device/MCP9808.c Executable file
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#include "../main/SystemInclude.h"
/* File start *****************************************************************/
#if ENABLE_USE_MCP9808
/******************************************************************************/
/******************************************************************************/
void WriteWordRegister(u8 regBuf, u16 regData)
{
SI2C_Start(); // send START command
SI2C_Write(MCP_ADR); // WRITE Command (see Section 4.1.4 <20><>Address Byte<74><65>)
// also, make sure bit 0 is cleared <20><>0<EFBFBD><30>
SI2C_Write(regBuf); // Write CONFIG Register
SI2C_Write(regData>>8); // Write data
SI2C_Write(regData); // Write data
SI2C_Stop(); // send STOP command
}
/******************************************************************************/
u16 ReadWordRegister(u8 regBuf)
{
TypeWord tempInt;
SI2C_Start(); // send START command
SI2C_Write(MCP_ADR); // WRITE Command (see Section 4.1.4 <20><>Address Byte<74><65>)
// also, make sure bit 0 is cleared <20><>0<EFBFBD><30>
SI2C_Write(regBuf); // Write CONFIG Register
SI2C_Start(); // send Repeat START command
SI2C_Write(MCP_ADR | 0x01); // READ Command
// also, make sure bit 0 is set <20><>1<EFBFBD><31>
tempInt.Byte[1] = SI2C_Read(); // READ 8 bits
SI2C_Ack();
tempInt.Byte[0] = SI2C_Read(); // READ 8 bits
SI2C_NoAck();
SI2C_Stop(); // send STOP command
return tempInt.Word;
}
/******************************************************************************/
void WriteByteRegister(u8 regBuf, u8 regData)
{
SI2C_Start(); // send START command
SI2C_Write(MCP_ADR); // WRITE Command (see Section 4.1.4 <20><>Address Byte<74><65>)
// also, make sure bit 0 is cleared <20><>0<EFBFBD><30>
SI2C_Write(regBuf); // Write CONFIG Register
SI2C_Write(regData); // Write data
SI2C_Stop(); // send STOP command
}
/******************************************************************************/
u16 ReadByteRegister(u8 regBuf)
{
u8 temp;
SI2C_Start(); // send START command
SI2C_Write(MCP_ADR); // WRITE Command (see Section 4.1.4 <20><>Address Byte<74><65>)
// also, make sure bit 0 is cleared <20><>0<EFBFBD><30>
SI2C_Write(regBuf); // Write CONFIG Register
SI2C_Start(); // send Repeat START command
SI2C_Write(MCP_ADR | 0x01); // READ Command
// also, make sure bit 0 is set <20><>1<EFBFBD><31>
temp = SI2C_Read(); // READ 8 bits
SI2C_NoAck();
SI2C_Stop(); // send STOP command
return temp;
}
/******************************************************************************/
void TestTemperatureInit(u8 regValue)
{
WriteWordRegister(CONFIG, CONVERSION);
//WriteByteRegister(RREG, RESULT_0_125_BIT);
WriteByteRegister(RREG, regValue);
HWState.EnableTempInit = 0;
}
/******************************************************************************/
s16 TestTemperature(void)
{
u32 tempLongInt;
s16 tempTA;
tempTA = (u32)ReadWordRegister(TA);
tempTA &= 0x1fff;
tempLongInt = (u32)(tempTA & 0xFFF);
if(tempTA >= 0x1000) tempLongInt = 0xFFF - tempLongInt;
tempLongInt = (tempLongInt * 6400) >> 10; // 0.0625*1024*100 /1024
if(tempTA >= 0x1000){
tempTA *= -1;
}
else tempTA = (u16)tempLongInt; // Temperature*100
if(voltageDetected[TPCB] >= 0x1000) tempTA *= -1;
return tempTA;
}
/******************************************************************************/
void TemperatureLowPower(void)
{
WriteWordRegister(CONFIG, SHUT_DOWN);
}
/* File end *****************************************************************/
#endif
/****************************************************************************/