Search found 15 matches

thank you, the #ZERO_RAM works like a charm Smile

That was the source of many weird behaviour, because previous values were inside the variables, sometimes all went ok, othertimes complete erratic beh ...

Hello all

A question, when declared an array inside main, such as

unsigned int8 spi_buffer[16];

is it normal that, when printing it's contents for the first time, values different fr ...

Thank you Ttelmah, I will try it in the real life. I think the code is ok, although I had problems with breadboards testing spi, and some pins and wires too thin and so on.

I searched the forum, sp ...

Using ccs v4.124

First of all, are there any known problems using Proteus to VSIM spi functions ?

If not, please look at the code:

Master:

#include <16F877A.H>

#fuses HS, NOWDT, N ...

Thank you, I will go for the add global to variable name, it's the best option and a smart one, allways learning Smile

Considering the PIC18f, more global variables, or more variables only mean more RAM ...

Hello, I would like to know if there's some code, like #pragma or something that makes the compiler show a warning when a global variable is declared more than once!

#pragma case
#include <16 ...

so I've got it wrong, the array has a 16bit index, because 3072>255 but the definition of the pointer must be :

unsigned int8 arr[3072];

(...)

unsigned int8 *arrayPointe ...

Hello again

first I wich to know if this method for measuring time is precise using simulation, I think it is, I'm measuring sum_eight() speed on a Pic18f4620 using CCS 4.124!

void sum_eight&# ...

Thank you ckielstra!
After taking a look to the ASM, with your code it has saved a lot of instruction cycles, but looking at your idea, I though what about creating a aux array, so suppose that the ...

maybe use

#fuses BORSEN

Thank you for the reply, I was editing the post because I've forgotten the main question. I'll search for the file, thank you!

Hello again

I'm using pic18f4620 and compiler 4.124, after trying to find the correct way to set the configuration register with CCS language, I found the #FUSE NOIESO, what does it do, I've read ...

you are right, really bad example about multiplication, because 256 is out of range for int8, anyway thanks because that was the problem in my code, out of range values!

and yes, something like :
...

Thank you, I found out that :

unsigned int8 num_high, num_low;
unsigned int8 factor = 256;
unsigned int16 result;

result = num_high * factor;
result = result + num_low;

uses the MULWF..
...

First of all, personaly I do not use CCS, but I'm translating my Microchip C18 to CCS v4.124, my question is, when the IC is included, example:

#include <18F4620.h>

the following code :
...