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Discussion Title Created date
AN313 : PC keyboard + avr ?? need to understand something
hi I am integrating a pc-keyboard into my design and I've let me lead by AN313 from atmel. There is some sourcecode in C, but I use asm. The hardware is working, data comes from...
Sunday, 16 January 2005 - 15:47
Push/pop SREG : 5 of 8 flags stay zero!
I have a problem : I use interrupts on my m16, and on entry and exit of an interrupt I save/restore SREG in the well-know way : interruptblahblah: push Stemp in Stemp,SREG...
Saturday, 15 January 2005 - 12:28
~~~HAPPY NEWYEAR~~~
8) :lol: :P Happy Newyear everyone ! :P :lol: 8) May 2005 be a very creative year!! My best greetings to the veterans on this site, the ones who helped me, and everyone else...
Friday, 31 December 2004 - 21:08
FPGA & CPLD, ALTERA or XILINX?
hi all, I'm totally unexperienced with fpga's and cpld's, but would like to learn to use them... My question is mainly - Which would be better suited, Altera or Xilinx? - I mean...
Sunday, 3 October 2004 - 14:55
copyrights and royalties
hi all, I have a small question : If we design a device that uses an AVR, and sell that device (in terms of 1000s units to even a couple of units), do we have to pay royalties to...
Tuesday, 14 September 2004 - 13:59
LCDcontroller designers must be mad! 3 unlogical cases found
hi freaks! I am working with graphic lcds now for a couple of months and as I learned their internal functionality, I stumbled upon 3 strange unlogical situations that occur in...
Thursday, 22 July 2004 - 20:38
Reading straight from LCD-RAM
I wonder if anyone could help me out with a very confusing lcd-instruction : the read-byte instruction. The lcd I use is equiped with the LC7891 controller. datasheet : http://...
Friday, 16 July 2004 - 20:38
ponyprog lockbits mayhem
ok I've done it again... I locked my atmega16! I use ponyprog and I can read my flash/eeprom and the lockbits but I can't write a single bit. it says error -25, unable to probe...
Friday, 9 July 2004 - 22:53
tool to convert monochrome graphics to hex
Hi everyone I am working on a LCD-project and need to upload some graphics into the eeprom. Ideally would be to have the graphics in uncompressed form as were every bit represents...
Sunday, 4 July 2004 - 21:12
conditional jumps must go too far away. best solution?
Hi I am writing a graphical library for my atmel16 to work with a graphical lcd. My procedures are getting quite long and at a point I had to do jumps that were further than 64...
Saturday, 3 July 2004 - 12:29
Bug in Appnote AVR200 routine Div8U
Hi all I think I encountered a bug in the div8u-routine explained in appnote avr200. I forgot what numbers caused trouble, but for example sometimes i received 7.4 (7 and...
Wednesday, 30 June 2004 - 23:00
atmel and lcd
OK does anyone know a site with sourcecode or a descent tutorial on controlling a GRAPHICAL LCD chipset LC7981 (HD61830-compatible) with an atmel, preferably an atmega16? I am...
Saturday, 1 May 2004 - 20:35

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