I am using 16F690 and try to write a string to 16x2 LCD. (16F690 PORTC , c0-c3 data bit, c4 RS and c5 enable) However, the software didn't work to run LCD. So, I changed it to a simple test code to test PORTC enable/disable. I have a LED conneted to C7 bit. The program can run successful by MikroPro. but, no luck on Hi-TECH C (verision 9.65)

Your feedback are highly appreciated

#include <htc.h>
#include "stdio.h"
#include <string.h>
__CONFIG(MCLRDIS & UNPROTECT & WDTDIS & PWRTDIS & XT );

void main(void)
{
PORTC = 0;
TRISA = 0xff; // PORT A input, Bit 2 AN2 input
TRISB = 0xc0; // Port B , RB7 & RB6 are input
TRISC = 0x40; // all PORTC output
ANSEL = 4; // Read AN2
ANSELH = 0;
CM1CON0 = 0;
CM2CON0 = 0;

C1ON=0; // Turn off Comparators
C2ON=0;
DelayMs1(100);

// I'm expecting LED (C7) blinking.
do {
PORTC =0;
DelayMs1(100);
PORTC= 0xff;
DelayMs1(100);
} while (1);
}

 

Where's your DelayMs1() function actually declared? Does this compile? I woulda thought it might complain about that, just include delay.c and delay.h into your project and use DelayMs(unsigned char) instead... And as you're not using the ADC (or are you?) I wouldn't bother with the ANSEL/ANSELH bits. Not that that would make much difference I wouldn't have thought, maybe someone else could clear that up. And while we're at it, wouldn't portC all as output be TRISC = 0x00?