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unexpected behavior of ATtiny26 LD Rn,Z+
SprinterSB wrote:This is a bug in avr-gcc, see PR51002. Indeed, PR51002 is the bug I filed after posting this thread. Check the usernames. :D It's really two bugs— one in the...
Saturday, 3 December 2011 - 21:51
AVR Errata - Unpublished, and other "Gotchas"
Device: ATtiny26 Summary: LD Rn,Z+ clobbers r31 (ZH) On the ATtiny26, the LD Rn,Z+ instruction resets the high 8 bits of the Z register to 0. (According to the datasheet, it would...
Sunday, 6 November 2011 - 21:26
unexpected behavior of ATtiny26 LD Rn,Z+
OK, I'm glad I wasn't just hallucinating. It's really frustrating that Atmel doesn't put this in their errata list though! KKP wrote:With GCC this errata usually triggers when the...
Sunday, 6 November 2011 - 07:52
unexpected behavior of ATtiny26 LD Rn,Z+
indianajones11 wrote:Nope, it increments the 16 bit Z value, same as any other such "var" . Well, the instruction set reference has this to say: doc0856 wrote:Note that only the...
Wednesday, 2 November 2011 - 06:51
usart and uart
Asynchronous serial effectively re-synchronizes itself on every start bit, so delay on the line is OK there as well. (But you do lose some throughput transmitting all those start...
Wednesday, 2 November 2011 - 03:53