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Displaytreiberansteuerung mit I2C
This is really important and I think you all will benefit from knowing this: Det var en gang svensken dansken og nordmannen som skulle se hvem som greide å danse ballett. Først...
Saturday, 31 May 2003 - 18:34
Timer Interrupts C++
Petr has read his documentation. For IAR 2.x that is the correct way to define an ISR. Notice the #pragma vector=TIMER0_OVF0_vect which defines the vector to use (yes, it seems a...
Saturday, 31 May 2003 - 11:10
AVR studio 4 and AT tiny 12
According to the online help it is only supported by the ICE200. -Geir
Saturday, 24 May 2003 - 19:10
Gost in the AVR?
The interrupt flags are probably set when you enable the interrupts, thus triggering them. First clear the flags and then enable the interrupts. -Geir
Saturday, 24 May 2003 - 08:16
It is called AT90S8515. -Geir
Thursday, 22 May 2003 - 17:36
CALL HELP! (Assembler)
You must set up the stack pointer: ldi temp,high(RAMEND) out SPH,temp ldi temp,low(RAMEND) out SPL,temp -Geir
Thursday, 15 May 2003 - 12:49
BOOTRST fuse on ~128L
You didn't mention the BOOTSZ fuses, they are important to get right. Another pitfall is to confuse word and byte addresses. -Geir
Monday, 12 May 2003 - 09:35
Bloody timers
have you written interrupt handlers? if not, strange things may happen when interrupts fire. You don't need to enable global interrupts when you are polling the interrupt flags (...
Tuesday, 6 May 2003 - 14:27
Bloody timers
There is no such thing as inverted flags. They are set to 1 when they are set, but you also have to clear them by writing 1 to them (you cannot set them manually). This is to...
Tuesday, 6 May 2003 - 13:59
newbie simulation prob
Enter debug mode by using the menu (Debug->Start debugging) or pressing play on the tool bar. -Geir
Tuesday, 6 May 2003 - 09:44
mega8515 UART
Take a look at the appnote called "Replacing AT90S8515 by ATmega8515" at For the UART in particular: The UART in AT90S8515 has been replaced...
Monday, 5 May 2003 - 11:39
Mega128 self-programming problem...
One last thing I can think of: you are sure that the SPM instruction is executed from the area defined by the boot size fuses? If this doesn't help, you might consider posting the...
Friday, 2 May 2003 - 09:00