H E L P - 12F629 LED BLINK CODE NEEDED, PLEASE, PLEASE

[Homie]

sorry Banana for the syntax errors, i made the code while i was writing. In C you all way have to finish your statements with a ; Execpt if it is a function, define, include or likes. And the the error rwyoung was talking about (and you also found yourself) was that there also have to be a delay after the toggle comand, or else it will toggle low and then high so fast that you cant see it

And a ICD is a In Circuit Debugger, the thing i ment was that if you program your chip ICSP (In Circuit Seriel Programming) you use some of your pins for that..

The blue text just mean that the compiler reconize the comand, all variables will be blue (integers, chars, bytes, void etc etc)

And as kender says if you want to write to the whole port at a time youll have to se it as a byte (hex) just like the set_tris comand i wrote (LessSignificantBit = port 0, the next = port 1 and so on. Just remember that with 6 ports the two MostSignificantBits have to be 0)

Hope i havent made you too confused with my bad syntax :P
-Thomas

[Jakin]

Hi,All:
Can anyone tell how #fuse works for C language ? Thank you very much .

[PCM programmer]

See this thread on fuses:
http://www.ccsinfo.com/forum/viewtopic.php?t=24336

[rwyoung]

[Mark]

[Guest]

[theteaman]

[rwyoung]

[Funky_Banana]

Guys im ready to slit my wrists. I just want a bloody led to flash on a pic 12f629 and im finding it so difficult.

Ive pasted the code into CCS and clicked compile, it then spits out a hex file. I am then dumping the file onto the chip with my programmer. I have no problem with electronics and know my stuff, so the led etc is all connected ok, the chip is programming ok and ive check the hex is on the chip. My programmer has various options to click, Brown out, Watchdog etc, Which do i need to click.

My led will not flash, the pin is doing nothing on the scope.

The code used is as follows:



#include <12F629.h>
#fuses INTRC_IO, NOWDT, NOMCLR, PUT, BROWNOUT
#use delay(clock=4000000)

//==========================
void main()
{

while(1)
{
output_high(PIN_A0);
delay_ms(500);
output_low(PIN_A0);
delay_ms(500);
}

}



PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!

[Mark]

Well the first thing I would do is read the datasheet, most importantly the analog input section. Look at the ANSEL register. Look at the default values. You will notice that A0 is by default an analog input and not a digital i/o. Now CCS has functions to set this up but I don't like to use them because they are known to have problems. But their function is
setup_adc_ports( NO_ANALOGS ); You need to add this. You are also not setting up the data direction registers either (TRIS). CCS handles this by default but I like to do this myself with the #use fast_io directive. The problem is that if you move to a different compiler, you will be lost again since all this "magic stuff" that happens makes the programmer lazy and ignorant of what needs to be done.

[PCM programmer]

Post your compiler version. The program that I posted was tested with
vs. 3.249. As Mark says, if you have an earlier version, the CCS
start-up code may not be correct. The version will be a number such
as 3.191, or 3.236, or 3.249, etc. Look at the top of the .LST file to
find the version number. The .LST file is in your project folder.

[jakin]

My version is 3.246 ,but I do know this complier will work or not. ANY comments .

[PCM programmer]

Are you saying that Jakin = Funky Banana ?

[jakin]

I am not funky banana ... I am just anoter person

[PCM programmer]

This is his thread. My request for a compiler version number was
in response to his recent post: