Port D and E as input 16F874A

[Bieli]

I use PCM 3.091.
I have problem with setting port D and E as input.
I used NO_ANALOGS and PSP_DISABLED, but I still have problem that port D works only when there is high level on RE0. I supose that its becouse of PSP.
Listing I will include tommorow.
Thanks for any suggestion.
___________________________
This message was ported from CCS's old forum
Original Post ID: 144514542

[Bieli]

Am I doing something wrong or port D is always depend on RE0?
Port D work as input only when RE0 is high. Otherwise some bits works other (ex. RD0) doesn't

#include <16F874A.h>
#fuses HS, NOLVP, NOPROTECT, NOWDT

#use delay(clock=4000000)

#include <lcd.c>

byte Dane1, Dane2;

main()
{ byte a;
setup_adc_ports(NO_ANALOGS);
setup_psp(psp_disabled);
lcd_init();
printf(lcd_putc,"Start");
delay_ms(1000);
while(1)
{

Dane1=input_e();
Dane2=input_d();
a=7;
printf(lcd_putc,"\f");
do
{ printf(lcd_putc,"\%d",bit_test(Dane1,a));
a--;
} while(a!=0xFF);
a=7;
do
{ printf(lcd_putc,"\%d",bit_test(Dane2,a));
a--;
} while(a!=0xFF);
delay_ms(100);
}
}

Thanks for help.
___________________________
This message was ported from CCS's old forum
Original Post ID: 144514574

[PCM programmer]

:=Am I doing something wrong or port D is always depend on RE0?
:=Port D work as input only when RE0 is high. Otherwise some bits works other (ex. RD0) doesn't.
---------------------------------------------------------

Both ports D and E have Schmitt trigger inputs. This means
that a high level must be at least 4 volts, before you can
read it as a logic "1". (This assumes your Vcc is 5 volts).

What voltage do you have on the pins ?
___________________________
This message was ported from CCS's old forum
Original Post ID: 144514599

[Bieli]

:=What voltage do you have on the pins ?
About 4,9V

For now it works when I added #use fast_io(E)
But if You have any suggestion I'll be greatfull.
___________________________
This message was ported from CCS's old forum
Original Post ID: 144514621