Search found 17 matches

Hello people. Found the bug finally.

3221 code:

.................... temp = y/8;
0248: RRCF x09,W
024A: MOVWF x0D
024C: RRCF x0D,F
024E: RRCF x0D,F
0250 ...

Look:

http://www.freewebs.com/meepa123/02%5Fmain%5F3221.LST

http://www.freewebs.com/meepa123/02%5Fmain%5F4023.LST

Could anybody compare both LSTs? The 3221 simulates OK but the 4023 doesn't g ...

Thanks for your answer!

But recompiling the code at a different compiler (3.221 rather than my 4.023) has brightened the causes. Definitely, IT IS a bug.

I've tried both compilations in a stand- ...

I must add this, in order for you to understand better the conflictive part of the program...

....................
....................
.................... do
.................... { ...

Mine must be compiler issue too. I'm working with a 128x64 lcd but at certain modes it doesn't work. It is not a hardware issue, as the proteus 6.9 simulator gives the same response.

a=0;
b=0;
...

May this be bug?

b=20;
a=10;
do
{
glcd_pixel(a,b,ON);
a=a+1;
b=b+1;
}while(b!=30);

Does not plot anything

b=20;
a=10;
do
{
a=a+1;
b=b+1;
glcd_p ...

Thanks!

Problem got solved a bit...

b=20;
a=10;

for(a=1;a<=20;++a)
{
glcd_pixel(a,b,ON);
}

now draws a perfect line, but

b=20;
a=10;

for(b ...

Hello

I have a function that plots points at a graphical LCD 128x64. The interface is OK.

b=20;
a=10;
glcd_pixel(a,b,ON);
glcd_pixel(a*2,b*2,ON);
glcd_pixel(a*3,b* ...

18f2550 pinout-compatible devices, which suit the requirement of having hardware I2C on <B0>, have the same errata-set.

I can't afford getting into pic16 devices, as they don't suit my projec ...

I can't give up with this PIC, as so much work would have been in vain. Nevertheless, your words are taken into account, and I'll think about it.

The slave's adress is 0xa0 , and the "conflict ...

Hello

I have fresh news. The problem is more focused now. I've tried a different master pic (18f4680) but it still doesn't work. After checking everything out with a digital oscilloscope, i came to ...

Master: 18f4550 @48mhz / 20mhz xtal

#include <18f4550.h>
#fuses HS,PLL5,CPUDIV1,NOWDT,PUT,NOLVP
#use delay(clock=48000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7)
...

Hello once again. I made an i2c_slave driver, but still doesn't work the whole thing.

#if defined(__PCM__)
#include <16F877.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock= ...

I didn't find anything at those links. Nevertheless... if i don't use "#use i2c", i can't use useful commands like i2c_isr_state, for example. That may be rather annoying.

Hasn't anyone t ...

Ok, thanks a lot.

One of the A3 erratas seems the most conflictive to me, as it mentions that there have been noticed some i2c troubles about it. The one concerning the TRISB and the LATB registers ...