LCD_init

[hundil]

Hi everybody

This is a part of my whole code below.

The problem is that LCD is not starting up properly.

Sometimes, Wrong characters are printed or nothing is appeared on LCD .

After a few resets, it works properly

Is there any problem with interrupts enable and disable sequence or place.

Any idea will be appreciated...

hundil





....

#include "LCD.C"

......

void main()
{

disable_interrupts(GLOBAL);
clear_interrupt(int_ccp1);
clear_interrupt(int_ccp2);
clear_interrupt(int_timer3);

disable_interrupts(INT_TIMER3);
disable_interrupts(INT_CCP1);
disable_interrupts(INT_CCP2);
disable_interrupts(INT_AD);
disable_interrupts(GLOBAL);

port_b_pullups(false);
setup_adc_ports(AN0);
setup_adc(ADC_CLOCK_INTERNAL);
setup_psp(PSP_DISABLED);
setup_spi(FALSE);
setup_wdt(WDT_OFF);
setup_timer_0(RTCC_INTERNAL);
setup_timer_1(T1_INTERNAL|T1_DIV_BY_1);
setup_timer_2(T2_DISABLED,0,1);
setup_timer_3(T3_INTERNAL|T3_DIV_BY_1);

set_tris_a(0x09);
set_tris_b(0xf1);
set_tris_c(0xA6);
set_tris_e(0x00);


disable_interrupts(int_ad);

delay_ms(500);

lcd_init();


output_high(PIN_C0);
printf(lcd_putc,"\f**SYK**");
delay_ms(1000);
output_low(PIN_C0);

setup_ccp1(CCP_CAPTURE_RE);
setup_ccp2(CCP_CAPTURE_RE);
set_timer3(15000);

enable_interrupts(INT_TIMER3);
enable_interrupts(INT_CCP1);
enable_interrupts(INT_CCP2);
enable_interrupts(GLOBAL);

delay_ms(5);
while(!input(PIN_B5)) output_high(PIN_A1);
output_low(PIN_A1);


do{.......

}while(1);

}

[PCM programmer]

Is your TRIS setup correct ?

My advice:
1. Get rid of the #fast_io() statement and get rid of these tris statements.
Let the compiler handle the TRIS. You're using CCS pin i/o functions.
The compiler will automatically setup the correct TRIS if you use
"standard i/o" mode instead of "fast_io". Standard i/o mode is the
default mode of the compiler.

set_tris_a(0x09);
set_tris_b(0xf1);
set_tris_c(0xA6);
set_tris_e(0x00);


2. If that doesn't work, then edit the lcd_init() function in LCD.C,
and increase the initial delay_ms() value to 50 ms. CCS has it set
for 15 ms, but some LCD's require a longer delay.