Program Temp_MCP9801
const Dos8x16ext As Byte [1520]= (
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xFC,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x33,0x00,0x00,0x00,
0x00,0xF3,0xF3,0x00,0x00,0xF3,0xF3,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x30,0xF3,0xF3,0x30,0x30,0xF3,0xF3,0x30,0x03,0x0F,0x0F,0x03,0x03,0x0F,0x0F,0x03,
0x00,0x78,0xF3,0xCF,0xCF,0xCC,0x8C,0x00,0x00,0x0C,0x0C,0x3C,0x3C,0x0F,0x07,0x00,
0x00,0x1C,0x1C,0xC0,0xF0,0x3C,0x0C,0x00,0x00,0x0C,0x0F,0x03,0x00,0x0E,0x0E,0x00,
0x00,0xD8,0xFC,0xCC,0x7C,0x18,0x00,0x00,0x1F,0x3F,0x31,0x33,0x1F,0x3F,0x33,0x00,
0x00,0x00,0x00,0xFC,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xF0,0xF8,0x1C,0x04,0x00,0x00,0x00,0x00,0x0F,0x1F,0x38,0x20,0x00,
0x00,0x04,0x1C,0xF8,0xF0,0x00,0x00,0x00,0x00,0x20,0x38,0x1F,0x0F,0x00,0x00,0x00,
0xC0,0xCC,0xFC,0xF0,0xF0,0xFC,0xCC,0xC0,0x00,0x0C,0x0F,0x03,0x03,0x0F,0x0C,0x00,
0x00,0xC0,0xC0,0xF8,0xF8,0xC0,0xC0,0x00,0x00,0x00,0x00,0x07,0x07,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x7C,0x3C,0x00,0x00,0x00,
0x00,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x3C,0x00,0x00,0x00,
0x00,0x00,0x00,0x80,0xE0,0x7C,0x1C,0x00,0x00,0x38,0x3E,0x07,0x01,0x00,0x00,0x00,
0x00,0xF8,0xFC,0x0C,0x8C,0xFC,0xF8,0x00,0x00,0x1F,0x3F,0x31,0x30,0x3F,0x1F,0x00,
0x00,0x00,0x30,0xFC,0xFC,0x00,0x00,0x00,0x00,0x30,0x30,0x3F,0x3F,0x30,0x30,0x00,
0x00,0x38,0x3C,0x0C,0xCC,0xFC,0x38,0x00,0x00,0x30,0x3C,0x3F,0x33,0x30,0x30,0x00,
0x00,0x0C,0x0C,0xCC,0xFC,0x3C,0x0C,0x00,0x00,0x1C,0x3C,0x30,0x33,0x3F,0x1C,0x00,
0x00,0x00,0xC0,0xF0,0xFC,0xFC,0x00,0x00,0x00,0x0F,0x0F,0x0C,0x3F,0x3F,0x0C,0x00,
0x00,0xFC,0xFC,0xCC,0xCC,0xCC,0x8C,0x00,0x00,0x18,0x38,0x30,0x30,0x3F,0x1F,0x00,
0x00,0xF0,0xF8,0x9C,0x8C,0x8C,0x00,0x00,0x00,0x1F,0x3F,0x31,0x31,0x3F,0x1F,0x00,
0x00,0x0C,0x0C,0x0C,0xCC,0xFC,0x3C,0x00,0x00,0x00,0x3C,0x3F,0x03,0x00,0x00,0x00,
0x00,0x38,0xFC,0xCC,0xCC,0xFC,0x38,0x00,0x00,0x1F,0x3F,0x30,0x30,0x3F,0x1F,0x00,
0x00,0x78,0xFC,0xCC,0xCC,0xFC,0xF8,0x00,0x00,0x00,0x30,0x30,0x38,0x1F,0x0F,0x00,
0x00,0x00,0x00,0xF0,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x3C,0x00,0x00,0x00,
0x00,0x00,0x00,0xF0,0xF0,0x00,0x00,0x00,0x00,0x00,0xC0,0x7C,0x3C,0x00,0x00,0x00,
0x80,0xC0,0xE0,0x70,0x38,0x18,0x08,0x00,0x00,0x01,0x03,0x07,0x0E,0x0C,0x08,0x00,
0x00,0x30,0x30,0x30,0x30,0x30,0x30,0x00,0x00,0x03,0x03,0x03,0x03,0x03,0x03,0x00,
0x08,0x18,0x38,0x70,0xE0,0xC0,0x80,0x00,0x08,0x0C,0x0E,0x07,0x03,0x01,0x00,0x00,
0x00,0x38,0x3C,0x0C,0xCC,0xFC,0x38,0x00,0x00,0x00,0x00,0x37,0x37,0x00,0x00,0x00,
0xF0,0xF8,0x1C,0xCC,0x4C,0x98,0xF0,0x00,0x0F,0x1F,0x38,0x33,0x32,0x33,0x19,0x00,
0x00,0xF0,0xF8,0x1C,0x1C,0xF8,0xF0,0x00,0x00,0x3F,0x3F,0x03,0x03,0x3F,0x3F,0x00,
0x00,0xFC,0xFC,0xCC,0xCC,0xFC,0x78,0x00,0x00,0x3F,0x3F,0x30,0x30,0x3F,0x1F,0x00,
0x00,0xF8,0xFC,0x0C,0x0C,0x3C,0x38,0x00,0x00,0x1F,0x3F,0x30,0x30,0x3C,0x1C,0x00,
0x00,0xFC,0xFC,0x0C,0x1C,0xF8,0xF0,0x00,0x00,0x3F,0x3F,0x30,0x38,0x1F,0x0F,0x00,
0x00,0xFC,0xFC,0xCC,0xCC,0xCC,0x0C,0x00,0x00,0x3F,0x3F,0x30,0x30,0x30,0x30,0x00,
0x00,0xFC,0xFC,0xCC,0xCC,0xCC,0x0C,0x00,0x00,0x3F,0x3F,0x00,0x00,0x00,0x00,0x00,
0x00,0xF8,0xFC,0x0C,0xCC,0xCC,0xCC,0x00,0x00,0x1F,0x3F,0x30,0x30,0x3F,0x1F,0x00,
0x00,0xFC,0xFC,0xC0,0xC0,0xFC,0xFC,0x00,0x00,0x3F,0x3F,0x00,0x00,0x3F,0x3F,0x00,
0x00,0x0C,0x0C,0xFC,0xFC,0x0C,0x00,0x00,0x00,0x30,0x30,0x3F,0x3F,0x30,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0xFC,0xFC,0x00,0x00,0x1C,0x3C,0x30,0x30,0x3F,0x1F,0x00,
0xFC,0xFC,0xC0,0xF0,0x3C,0x0C,0x00,0x00,0x3F,0x3F,0x00,0x03,0x0F,0x3C,0x30,0x00,
0x00,0xFC,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0x3F,0x30,0x30,0x30,0x30,0x00,
0xFC,0xFC,0x70,0xC0,0x70,0xFC,0xFC,0x00,0x3F,0x3F,0x00,0x01,0x00,0x3F,0x3F,0x00,
0x00,0xFC,0xFC,0xE0,0x80,0xFC,0xFC,0x00,0x00,0x3F,0x3F,0x01,0x07,0x3F,0x3F,0x00,
0x00,0xF8,0xFC,0x0C,0x0C,0xFC,0xF8,0x00,0x00,0x1F,0x3F,0x30,0x30,0x3F,0x1F,0x00,
0x00,0xFC,0xFC,0x0C,0x0C,0xFC,0xF8,0x00,0x00,0x3F,0x3F,0x03,0x03,0x03,0x01,0x00,
0x00,0xF8,0xFC,0x0C,0x0C,0xFC,0xF8,0x00,0x00,0x1F,0x3F,0x38,0x1E,0x3F,0x37,0x00,
0xFC,0xFC,0x8C,0x8C,0xFC,0xF8,0x00,0x00,0x3F,0x3F,0x01,0x03,0x0F,0x3C,0x30,0x00,
0x00,0x78,0xFC,0xCC,0x8C,0x8C,0x18,0x00,0x00,0x18,0x31,0x31,0x33,0x3F,0x1E,0x00,
0x00,0x0C,0x0C,0xFC,0xFC,0x0C,0x0C,0x00,0x00,0x00,0x00,0x3F,0x3F,0x00,0x00,0x00,
0x00,0xFC,0xFC,0x00,0x00,0xFC,0xFC,0x00,0x00,0x1F,0x3F,0x30,0x30,0x3F,0x1F,0x00,
0x00,0xFC,0xFC,0x00,0x00,0xFC,0xFC,0x00,0x00,0x03,0x0F,0x3C,0x3C,0x0F,0x03,0x00,
0xFC,0xFC,0x00,0x80,0x00,0xFC,0xFC,0x00,0x3F,0x1F,0x0E,0x07,0x0E,0x1F,0x3F,0x00,
0x00,0x1C,0x7C,0xE0,0xE0,0x7C,0x1C,0x00,0x00,0x38,0x3E,0x07,0x07,0x3E,0x38,0x00,
0x00,0x3C,0xFC,0xC0,0xC0,0xFC,0x3C,0x00,0x00,0x00,0x00,0x3F,0x3F,0x00,0x00,0x00,
0x00,0x0C,0x0C,0xCC,0xFC,0x3C,0x0C,0x00,0x00,0x3C,0x3F,0x33,0x30,0x30,0x30,0x00,
0x00,0x00,0x00,0xFC,0xFC,0x0C,0x0C,0x00,0x00,0x00,0x00,0x3F,0x3F,0x30,0x30,0x00,
0x00,0x0C,0x0C,0xFC,0xFC,0x00,0x00,0x00,0x00,0x30,0x30,0x3F,0x3F,0x00,0x00,0x00,
0x80,0xE0,0x78,0x1E,0x78,0xE0,0xE0,0x00,0x01,0x01,0x00,0x00,0x00,0x01,0x01,0x00,
0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x00,
0x00,0x07,0x0E,0x1C,0x38,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x60,0x60,0x60,0xE0,0xC0,0x00,0x00,0x1E,0x3F,0x33,0x33,0x3F,0x3F,0x00,
0x00,0xFC,0xFC,0x60,0x60,0xE0,0xC0,0x00,0x00,0x3F,0x3F,0x30,0x30,0x3F,0x1F,0x00,
0x00,0xC0,0xE0,0x60,0x60,0x60,0x00,0x00,0x00,0x1F,0x3F,0x30,0x30,0x30,0x30,0x00,
0x00,0xC0,0xE0,0x60,0x60,0xFC,0xFC,0x00,0x00,0x1F,0x3F,0x30,0x30,0x3F,0x3F,0x00,
0x00,0xC0,0xE0,0x60,0x60,0xE0,0xC0,0x00,0x00,0x1F,0x3F,0x32,0x32,0x33,0x33,0x00,
0x00,0xC0,0xC0,0xF8,0xFC,0xCC,0xCC,0x00,0x00,0x00,0x00,0x3F,0x3F,0x00,0x00,0x00,
0x00,0xC0,0xE0,0x60,0x60,0xE0,0xE0,0x00,0x00,0xCF,0xDF,0xD8,0xD8,0xFF,0x7F,0x00,
0x00,0xFC,0xFC,0x60,0x60,0xE0,0xC0,0x00,0x00,0x3F,0x3F,0x00,0x00,0x3F,0x3F,0x00,
0x00,0x00,0x60,0xEC,0xEC,0x00,0x00,0x00,0x00,0x00,0x30,0x3F,0x3F,0x30,0x00,0x00,
0x00,0x00,0x00,0x00,0xEC,0xEC,0x00,0x00,0x00,0xC0,0xC0,0xC0,0xFF,0x7F,0x00,0x00,
0xFC,0xFC,0x80,0xC0,0xE0,0x60,0x00,0x00,0x3F,0x3F,0x03,0x07,0x1E,0x38,0x30,0x00,
0x00,0x00,0x0C,0xFC,0xFC,0x00,0x00,0x00,0x00,0x00,0x30,0x3F,0x3F,0x30,0x00,0x00,
0xC0,0xE0,0xE0,0xC0,0xE0,0xE0,0xC0,0x00,0x3F,0x3F,0x00,0x07,0x00,0x3F,0x3F,0x00,
0x00,0xC0,0xE0,0x60,0x60,0xE0,0xC0,0x00,0x00,0x3F,0x3F,0x00,0x00,0x3F,0x3F,0x00,
0x00,0xC0,0xE0,0x60,0x60,0xE0,0xC0,0x00,0x00,0x1F,0x3F,0x30,0x30,0x3F,0x1F,0x00,
0x00,0xE0,0xE0,0x60,0x60,0xE0,0xC0,0x00,0x00,0xFF,0xFF,0x30,0x30,0x3F,0x1F,0x00,
0x00,0xC0,0xE0,0x60,0x60,0xE0,0xE0,0x00,0x00,0x1F,0x3F,0x30,0x30,0xFF,0xFF,0x00,
0x00,0xE0,0xE0,0x60,0x60,0xE0,0xC0,0x00,0x00,0x3F,0x3F,0x00,0x00,0x00,0x00,0x00,
0x00,0xC0,0xE0,0x60,0x60,0x60,0x60,0x00,0x00,0x31,0x33,0x33,0x36,0x3E,0x3C,0x00,
0x00,0x60,0x60,0xF8,0xF8,0x60,0x60,0x00,0x00,0x00,0x00,0x1F,0x3F,0x30,0x30,0x00,
0x00,0xE0,0xE0,0x00,0x00,0xE0,0xE0,0x00,0x00,0x1F,0x3F,0x30,0x30,0x3F,0x3F,0x00,
0x00,0xE0,0xE0,0x00,0x00,0xE0,0xE0,0x00,0x00,0x03,0x0F,0x3C,0x3C,0x0F,0x03,0x00,
0xE0,0xE0,0x00,0x80,0x00,0xE0,0xE0,0x00,0x3F,0x1F,0x0E,0x07,0x0E,0x1F,0x3F,0x00,
0x00,0x60,0xE0,0x80,0x80,0xE0,0x60,0x00,0x00,0x30,0x3D,0x0F,0x0F,0x3D,0x30,0x00,
0x00,0xE0,0xE0,0x00,0x00,0xE0,0xE0,0x00,0x00,0xCF,0xDF,0xD8,0xD8,0xFF,0x7F,0x00,
0x80,0x80,0xC0,0xFC,0x7E,0x02,0x02,0x00,0x01,0x01,0x03,0x3F,0x7E,0x40,0x40,0x00,
0x00,0x00,0x00,0xFE,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0x7F,0x00,0x00,0x00,
0x02,0x02,0x7E,0x7C,0xC0,0x80,0x80,0x00,0x40,0x40,0x7E,0x3F,0x03,0x01,0x01,0x00,
0xC0,0x60,0xE0,0xC0,0x80,0x80,0xE0,0x00,0x01,0x00,0x00,0x01,0x01,0x01,0x00,0x00)
Dim Temp as Word
Temp2 as integer
Str as string[5]
Const MCP9800_TEMP = 0x00
MCP9800_CONFIG = 0x01
MCP9800_HYST = 0x02
MCP9800_ALERT = 0x03
Sub Procedure Lcd_WrCmd(Dim pCmd As Byte)
while Not (i2c1_Is_Idle) wend
i2c1_Start()
i2c1_Wr(0x78)
i2c1_Wr(0x80)
i2c1_Wr(pCmd)
i2c1_Stop()
End Sub
Sub Procedure Lcd_WrDat(Dim pDat As Byte)
while Not (i2c1_Is_Idle) wend
i2c1_Start()
i2c1_Wr(0x78)
i2c1_Wr(0x40)
i2c1_Wr(pDat)
Delay_ms(1)
i2c1_Stop()
End Sub
Sub Procedure Lcd_SetPos(Dim px, py as Byte)
Lcd_WrCmd(0xB0 + py)
Lcd_WrCmd(0xB0 + py)
Lcd_WrCmd((px >> 4) Or 0x10)
Lcd_WrCmd(px And 0x0F)
End Sub
Sub Procedure Lcd_Char_8x16(Dim px, py, pchar As Byte)
Dim lIndex As Word
lIndex = pChar - 0x20
lIndex = (lIndex << 4)
Lcd_SetPos(px, py)
Lcd_WrDat(Dos8x16ext[lIndex+0])
Lcd_WrDat(Dos8x16ext[lIndex+1])
Lcd_WrDat(Dos8x16ext[lIndex+2])
Lcd_WrDat(Dos8x16ext[lIndex+3])
Lcd_WrDat(Dos8x16ext[lIndex+4])
Lcd_WrDat(Dos8x16ext[lIndex+5])
Lcd_WrDat(Dos8x16ext[lIndex+6])
Lcd_WrDat(Dos8x16ext[lIndex+7])
Lcd_SetPos(px, py+1)
Lcd_WrDat(Dos8x16ext[lIndex+8])
Lcd_WrDat(Dos8x16ext[lIndex+9])
Lcd_WrDat(Dos8x16ext[lIndex+10])
Lcd_WrDat(Dos8x16ext[lIndex+11])
Lcd_WrDat(Dos8x16ext[lIndex+12])
Lcd_WrDat(Dos8x16ext[lIndex+13])
Lcd_WrDat(Dos8x16ext[lIndex+14])
Lcd_WrDat(Dos8x16ext[lIndex+15])
End Sub
Sub Procedure LCD_Fill(Dim pFill As Byte)
Dim lx, ly As Byte
For ly = 0 To 8
LCD_wrCmd(0xB0 + ly)
LCD_wrCmd(0x01)
LCD_wrCmd(0x10)
For lx = 0 to 131
Lcd_wrDat(pFill)
Next lx
Next ly
End Sub
Sub Procedure Lcd_String_8x16(Dim px, py As Byte, Dim ByRef pDisp As String)
Dim lLen, lCnt As Byte
lLen = Length(pDisp)
For lCnt = 0 To (lLen-1)
Lcd_Char_8x16(px+1, py, pDisp[lCnt])
px = px + 8
Next lCnt
End Sub
Sub Procedure Display_Init()
Lcd_WrCmd(0xA8)
Lcd_WrCmd(0x3F)
Lcd_WrCmd(0xD3)
Lcd_WrCmd(0x00)
Lcd_WrCmd(0x40)
Lcd_WrCmd(0xA1)
Lcd_WrCmd(0xC8)
Lcd_WrCmd(0xDA)
Lcd_WrCmd(0x12)
Lcd_WrCmd(0x81)
Lcd_WrCmd(0xFF)
Lcd_WrCmd(0xA4)
Lcd_WrCmd(0xA6)
Lcd_WrCmd(0xD5)
Lcd_WrCmd(0x80)
Lcd_WrCmd(0x8D)
Lcd_WrCmd(0x14)
Lcd_WrCmd(0x00)
Lcd_WrCmd(0x10)
Lcd_WrCmd(0xD9)
Lcd_WrCmd(0xF1)
Lcd_WrCmd(0xDB)
Lcd_WrCmd(0x40)
Lcd_WrCmd(0x20)
Lcd_WrCmd(0x02)
Lcd_WrCmd(0xAE)
End Sub
Sub Function MCP9800_Read(Dim pReg As Byte) As Word
While Not (i2c1_Is_Idle) wend
i2c1_Start()
i2c1_Wr(0x90)
i2c1_Wr(pReg)
i2c1_Repeated_Start()
i2c1_Wr(0x91)
If pReg = MCP9800_CONFIG Then
Result = i2c1_Rd(1)
Else
Hi(Result) = i2c1_Rd(1)
Lo(Result) = i2c1_Rd(0)
End If
i2c1_Stop()
delay_ms(5)
End Sub
Sub Procedure MCP9800_Write(Dim pReg As Byte, dim lData As Word)
while Not (i2c1_Is_Idle) wend
i2c1_Start()
i2c1_Wr(0x90)
i2c1_Wr(pReg)
If pReg = MCP9800_CONFIG Then
i2c1_Wr(lData)
Else
i2c1_Wr(Hi(lData))
i2c1_Wr(Lo(lData))
End If
i2c1_Stop()
delay_ms(5)
End Sub
Sub Procedure MCP9800_SetAlert(Dim pMin, pMax As Byte)
MCP9800_Write(MCP9800_HYST, pMin<<8)
MCP9800_Write(MCP9800_ALERT, pMax<<8)
End Sub
main:
OSCCON = %01111000
ANSELB = 0
TRISB = %00010010
i2c1_init(100000)
Delay_ms(20)
Display_Init()
LCD_wrCmd(0xAF)
LCD_Fill(0x00)
LCD_Setpos(0,0)
Lcd_String_8x16(0,0, "Temp: ")
Lcd_String_8x16(56,0, ",")
MCP9800_Write(MCP9800_CONFIG, %01100000)
While True
Temp = MCP9800_Read(MCP9800_TEMP)
BytetoStr(Hi(temp), str)
Lcd_String_8x16(32, 0,str)
Temp2 = LO(Temp) >>4 * 6
ByteTostr(temp2, str)
Ltrim(str)
Lcd_String_8x16(60, 0,str)
Delay_ms(350)
Wend
end.