[avr-gcc-list] Data in ROM

[Abdul Malik Khan]

Hi All,

I want to define a constant array that should not be copied into the
RAM during initialization. How should I define such an array?

I have tried 

const unsigned char mask[] = {1, 2, 4, 8, 16, 32, 64, 128};

but compiler places it in RAM istead of ROM.

Thanks-- Abdul Malik Khan
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Re: [avr-gcc-list] Using PORTB with variables, PORTB = var

[Abdul Malik Khan]

Hi,

what is the type and size of var? 

What error you are geting?
On 4/22/06, [EMAIL PROTECTED] [EMAIL PROTECTED]
 wrote:Hiyas,How can I use the PORTB constant with variables? eg:
while (1) {var = 1;PORTB = var}That is what I'm trying to acheive.I'd like to be able to do it with variableslike I do above, but it doesn't seem to work.Once I replace var with an
actual number, it works as expected.Can someone help me out here?URL? reference?Thanks,Chris-___AVR-GCC-list mailing list
AVR-GCC-list@nongnu.orghttp://lists.nongnu.org/mailman/listinfo/avr-gcc-list-- Abdul Malik Khan

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Re: [avr-gcc-list] Interrupt Service Routines

[Abdul Malik Khan]

Try

void SIG_OVERFLOW0 (void) __attribute__ ((signal));  //Prototype of the ISR
void SIG_OVERFLOW0 (void)
{
// ISR Code will be here}

Hope it will work
On 4/5/06, Dave Lamont [EMAIL PROTECTED] wrote:
Can somebody advise me how to write thereplacementof SIGNAL(SIG_OVERFLOW0)I have tried various combinations ofinterrupt (TIMER0_OVF) void TIMER0_OVF(void){etc;etc;etc}Thank you in anticipation
David Lamont comtec___AVR-GCC-list mailing listAVR-GCC-list@nongnu.org
http://lists.nongnu.org/mailman/listinfo/avr-gcc-list-- Abdul Malik Khan
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