C ompact Board | P C M - 6 8 9 2 R e v . B |
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void ExitConfigMode()
{
outportb(IO_INDEX_PORT, LOCK_DATA);
}
void SelectDevice(unsigned char device)
{
outportb(IO_INDEX_PORT, DEVICE_REGISTER); outportb(IO_DATA_PORT, device);
}
unsigned char ReadAData(short int reg)
{
outportb(IO_INDEX_PORT, reg); return (inportb(IO_DATA_PORT));
}
void WriteAData(unsigned char reg, unsigned char data)
{
outportb(IO_INDEX_PORT, reg); outportb(IO_DATA_PORT, data);
}
void SetWatchDogTime(unsigned char time_val)
{
EnterConfigMode();
SelectDevice(8); WriteData(0x30, 0x01); //Set Register F2
Appendix B Programming the Watchdog Timer B - 4
