PCWHD IDE COMPILER Custom Computer Services Inc (CCS), PCWHD IDE COMPILER Datasheet - Page 346

• Manufacturer Part Number: PCWHD IDE COMPILER
• Description: PCWHD PIC10,16,18,24, DSPIC
• Manufacturer: Custom Computer Services Inc (CCS)
• Type: Compilerr

Specifications of PCWHD IDE COMPILER

• For Use With/related Products: Microchip PIC10, PIC12, PIC16, PIC18, PIC24, dsPIC MCUs
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 429-1009

How do I get getc() to timeout after a specified time?
GETC will always wait for a character to become available unless a timeout time is specified in the
#use rs232().
The following is an example of how to setup the PIC to timeout when waiting for an RS232
character.
#include <18F4520.h>
#fuses HS,NOWDT
#use delay(clock=20MHz)
#use rs232(UART1,baud=9600,timeout=500) //timeout = 500 milliseconds, 1/2
second
void main()
{
}
How do I wait only a specified time for a button press?
The following is an example of how to wait only a specific time for a button press.
#define PUSH_BUTTON PIN_A4
int1 timeout_error;
int1 timed_get_button_press(void){
}
332
char c;
while(TRUE)
{
}
int16 timeout;
timeout_error=FALSE;
timeout=0;
while(input(PUSH_BUTTON) && (++timeout<50000)) // 1/2 second
if(!input(PUSH_BUTTON))
else{
}
c=getc();
if(c) //if not zero echo character back
//user to do code
output_toggle(PIN_A5);
delay_us(10);
return(TRUE); //button pressed
timeout_error=TRUE;
return(FALSE); //button not pressed timeout occurred
putc(c);
//if getc() timeouts 0 is returned to c
//otherwise receive character is returned to c