[AVR] array intialize problem (avr-gcc)

[firewhale]

i have a big problem when using array
the array works until my array is 4
but after i add 5th number, avr started joking....
the program very easy & problem seems very old

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Code C - [expand]
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#include <avr/io.h>
#include <avr/delay.h>
#include <avr/pgmspace.h>
 
int main(void)
{
    uint8_t i = 0;
 
    const uint8_t j[] =
    {
    0x00,0x01,0x02,0x03,0x04,
    };
    DDRB  = 0xff;
    PORTB = 0x00;
 
    for(i=0;i<4;i++)
    {
    PORTB=j[i];
    _delay_ms(500);
    }
}

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& ex:when i remove 5th value, array restore correctly
with or without PROGMEM program not change

 

[ponnus]

Try using a fixed size array, such as

const uint8_t j[5] =
    {
    0x00,0x01,0x02,0x03,0x04,
    };

 

[alexan_e]

i have big problem to using array
the array work until my array have 4
but after i add 5th number, avr starting joking....

Define "joking"

 

[firewhale]

not change with static or fix array...
joking like joke... i think it....
sorry for bad English

 

[alexan_e]

provide a minimum code that reproduces the error and what we should do to get the error you mention

 

[firewhale]

this means you have no same problem...?

 

[alexan_e]

The provided code doesn't show any problem for me



when I run it in the debugger and vie the content of j I see all five values as expected.


Note that the condition in the "for" loop

for(i=0;i<4;i++)
    {
    }

Will only be executed four times (i=0,1,2,3) and not five, I wonder if this is the problem you refer to.

 

[firewhale]

maybe makefile are diffrent...?
my problem is:
with 4 value{start show me correct value on led}
with 5or more{ from start show me evrything (65,84,0 0 0 ,....)& dont stop ,never(without loop).}
it seems my avr go crayzy with 5 value.....
can you attach your makefile.

 

[alexan_e]

I use AVR studio which generates the make file automatically.
I'm attaching the project which includes the make file (mcu is mega8)

 

[firewhale]

no, no, no, no,
i can't use your make file

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Code Bash - [expand]
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make: *** No rule to make target '../conns.c', needed by 'conns.o'.  Stop.

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when i use

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Code C - [expand]
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PORTD=j[4];

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code work well,ofcurse output seems be convert to inline(becuse output hex are incrase)
your code work well ,you&me use avr-gcc but what does linker to me ,why?

 

[alexan_e]

I'm using AVR studio and winavr(installed separately), where does your avr-gcc installation come from?

- - - Updated - - -

Can you attach your make file?

 

[firewhale]

AVR/ATMEL Studio using GCC Compiler's(AVR-GCC), isn't?
http://www.atmel.com/microsite/atmel_studio6/compiler_editor.aspx
makefile attached...
pls help....
thanks for replay...

 

[alexan_e]

You have Atmel studio installed? Which version?
You are using the integrated tool chain right? (no separate avrgcc installed)

 

[firewhale]

I'm using avr-gcc only

 

[alexan_e]

So you have installed winavr?
Do you have the latest version?

 

[firewhale]

only avr-gcc . no winavr no avr-studio