void
emacs_sleep (int secs)
{
stop_interrupts ();
sleep (secs);
start_interrupts ();
}
void
slow_down_interrupts (void)
{
EMACS_TIME thyme;
/* We have to set the flag *before* setting the slowed-down timer,
to avoid a race condition -- if the signal occurs between the
call to set_one_shot_timer() and the setting of this flag,
alarm_happened will get set, which will be a Bad Thing if
there were no timeouts on the queue. */
interrupts_slowed_down++;
if (interrupts_slowed_down == 1)
{
stop_interrupts ();
EMACS_SET_SECS_USECS (thyme, SLOWED_DOWN_INTERRUPTS_SECS, 0);
set_one_shot_timer (thyme);
}
}
void ParseCommand(char *string)
{
char Command;
char Command2 = 0;
unsigned int Params[MAX_COMMAND_PARAMS];
unsigned int NumParams=0;
/* UsartWriteString("Command Received: ");
UsartWriteString(string);
UsartWriteString("\n\r");
*/
// assume commands are single character followed by numerical parameters sep by spaces
// e.g. "s 1 5", "b 7", "b 100 120 001 212 123"
Command = string[0];
if(IsAlpha(string[1])) // multi-char command (e.g. pa, oa, ia, etc)
Command2 = string[1];
if(Command != 0)
{
NumParams=GetParams(string,Params); // read any optional parameters after command
/*
UsartWriteString("CommandID: ");
UsartWriteChar(Command);
if(Command2 != 0)
UsartWriteChar(Command2);
UsartWriteString(" #Params: ");
UsartWriteChar(48+NumParams);
UsartWriteString("\n\r");
*/
}
else
{
UsartWriteString("No Command\n\r");
};
unsigned short lcdDataIn;
static char buffer[10];
switch(Command)
{
case 'a': // ADC do immediate conversion
PORTQ.OUTCLR = PIN0_bm | PIN2_bm; //ENCODE pins
_delay_ms(1);
PORTQ.OUTSET = PIN0_bm | PIN2_bm;
_delay_ms(1);
char value = PORTD.IN;
IntToString(value,&buffer[0]);
UsartWriteLine(buffer);
break;
case 'b': // read imager flag
PORTA.DIR &= ~0x01;
char bb6 = PORTA.IN & 0x01;
IntToString(bb6,&buffer[0]);
UsartWriteLine(buffer);
break;
case 'y': // Start Image
frame = 0;
start_interrupts();
break;
case 'z': // Stop Image
stop_interrupts();
break;
case 'l':
lcdDataIn = TSLCDInDat();
IntToString(lcdDataIn,&buffer[0]);
UsartWriteLine(buffer);
break;
case 'x':
IntToString(4,&buffer[0]);
UsartWriteLine(buffer);
break;
case 'T': // Usart TX test
DoUsartTx(Command2,Params[0],"0123456789");
break;
case 'S': // Config SPI port
DoSpiConfig(Command2,Params[0]);
break;
case 'X': // SPI TX test
DoSpiTx(Command2,"0123456789");
break;
case 's': // Sleep CPU
DoSleep(Params[0]); // this will not return
break;
case 'O': // Set oscillator source
DoOscillator(Params[0]); // this will not return
break;
case 'h': // Usage
break;
};
return;
};