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PC400 / PC410 l User’s Manual

Sample Code:

#1 :

// Get GPI 1 status

//Get GPI 0 Pin Status Register

printf("Input port value = %x\n", ReadByte(GPI1to4_ADDR)); // bit4 = GPI 1 status

// Get GPI 5 status

//Get GPI 0 Pin Status Register

printf("Input port value = %x\n", ReadByte(GPI_REG5to8)); // bit0 = GPI 5 status

#2 :

// Set GPO status to high

; Set GPO 1 Pin to High

Data = ReadByte(GPO1to4_ADDR) | GPO1_DataHigh;

WriteByte(GPO1to4_ADDR, Data); //Set IO_DO1 to High

; Set GPO 2 Pin to High

Data = ReadByte(GPO1to4_ADDR) | GPO2_DataHigh;

WriteByte(GPO1to4_ADDR, Data); //Set IO_DO2 to High

; Set GPO 3 Pin to High

Data = ReadByte(GPO1to4_ADDR) | GPO3_DataHigh;

WriteByte(GPO1to4_ADDR, Data); //Set IO_DO3 to High

; Set GPO 4 Pin to High

Data = ReadByte(GPO1to4_ADDR) | GPO4_DataHigh;

WriteByte(GPO1to4_ADDR, Data); //Set IO_DO4 to High

; Set GPO 5 Pin to High

Data = ReadByte(GPO5_ADDR) | GPO5_DataHigh;

WriteByte(GPO5_ADDR, Data); //Set IO_DO5 to High

; Set GPO 6 Pin to High

Data = ReadByte(GPO6_ADDR) | GPO6_DataHigh;

WriteByte(GPO6_ADDR, Data); //Set IO_DO6 to High

; Set GPO 7 Pin to High

Data = ReadByte(GPO7_ADDR) | GPO7_DataHigh;

WriteByte(GPO7_ADDR, Data); //Set IO_DO7 to High

; Set GPO 8 Pin to High

Data = ReadByte(GPO8_ADDR) | GPO8_DataHigh;

WriteByte(GPO8_ADDR, Data); //Set IO_DO8 to High

Appendix – WDT & GPIO

C&T PC400 Series User Manual

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