Problem controlling port A pin 6

[JacquesB]

Hi
I have a problem controlling port RA6 but I can control the rest of PORTA.
I think it comes from the configuration of the oscillator.
I've used the #fuse INTRC_IO and tried also INTRC without success.
I can control individual pin of the port except RA6 !
Processor used PIC18F2525 without an external clock or xtal.


void main(void)
{

setup_oscillator(OSC_4MHZ|OSC_INTRC); // set internal oscillator at 4 Mhz
set_tris_A(0x00); // set pins to output
set_tris_c(PORT_TRISC); // set pins input or output
port_b_pullups(true); //
output_A(0x00);
setup_adc_ports(NO_ANALOGS|VSS_VDD);//
setup_adc(ADC_OFF|ADC_TAD_MUL_0);//

setup_wdt(WDT_OFF);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_comparator(NC_NC_NC_NC);
setup_vref(FALSE);

output_high(31749); // port Ra5 adress
output_high(31750); // port Ra6 adress
output_high(31751); // port Ra7 address

...
}

Does anybody knows what I'm doing wrong ?

Thanks

[PCM programmer]

Are you testing this on a hardware board or in a simulator ?

[PCM programmer]

You need to use a much more simple test program, and don't use use
magic numbers for the i/o pins. Use CCS pin constants in the .H file.
Example:

[JacquesB]

I'm testing it with the Pickit2.
The rest of the program works fine beside not being able to control RA6

[PCM programmer]

Here's the Pickit2 web page:
http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en023805
What board do you have (on that page) that has a 18F2525 on it ?

They have a "low pin count" board. But it only has a 16F690 on it.
What board do you have ?

[JacquesB]

The PIC18F2525 is monted on a PICDEM2 Plus board and it is running with the internal oscillator set to 4Mhz.
My program runs fine ( Rs232 interrupts, Timer 0 inetrrupts, SPI, ...) except for RA6 which stays low when I want to turn it ON. All other pins of PORTA can be controlled

I still think that the problem is related to the OSC1 OSC2 pins ( RA6 & RA7) that are normally used for an external cristal but I used the
#fuses INTRC_IO to make RA6&RA7 available as IO pins

[PCM programmer]

What is your compiler version ? It's given at the start of the .LST file.
The .LST file is in your project directory. The compiler version is in
this format: x.xxx

[JacquesB]

It is :
CCS PCH C Compiler, Version 4.071

[PCM programmer]

That version should work.

Are you running a bootloader in the 18F2525 ? Are you certain that
the INTRC_IO fuse is really being programmed into the PIC ?

[jacquesB]

Sorry for the delay,

No there is no boot loader.
How can I be sure that the INTRC_IO is really being programmed ?