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Thanks, that will do as a start on the issues involved. One question, is it possible to synchronize two or more AVRs together, to prevent the production of beat frequencies from...
Thursday, 28 February 2013 - 06:46
USI Clocking for Speed
Anybody? Since I have set myself to task of creating the DLL to simulate the ATtiny25's USI peripheral for VMLab, I need to understand all these clocking details. So if anybody...
Saturday, 10 April 2010 - 16:45
USI Clocking for Speed
Well, I am expecting that it will read the USCK pin as an external clock input. And because USICS0 is implicitly set to 0, it will read data on the 0 to 1 transition then change...
Thursday, 8 April 2010 - 16:48
USI Clocking for Speed
Hmm, so just writing a one to USITC will only toggle the clock pin in this case. In order to shift the data register, writing a one to USICLK is also required. *** Oh, the USITC...
Thursday, 8 April 2010 - 00:02
What the For Loop?
clawson wrote:Quote: The VMLab forum is awful quiet. But it was abandonded and made PD wasn't it? The source code is still closed. The compiled binaries are available as...
Sunday, 28 March 2010 - 01:46
What the For Loop?
danni wrote:syberraith wrote:As I understand it. The 22 was one of the first models Atmel made based on the 8051. It's historic... No, the ATtiny22 was the first 8-pin AVR...
Saturday, 27 March 2010 - 18:10
What the For Loop?
As I understand it. The 22 was one of the first models Atmel made based on the 8051. It's historic... In anycase I'm building a model for the ATiny25/45/85 series. That I...
Friday, 26 March 2010 - 23:25
What the For Loop?
Yeah... Although, there's a absence of any nice ATtiny25 model for VMLab.
Friday, 26 March 2010 - 21:27
What the For Loop?
I think that's still going to give an err, because of the ST X+,R1 on line 16. The data sheet says this is a valid instruction for the T22, although the simulator seems to be...
Friday, 26 March 2010 - 18:59
What the For Loop?
OK. I tried subbing in the above int routines and got an misspelled interrupt handler err on them. As it is it gave the x index err. I'm just trying to find out what the minimum...
Friday, 26 March 2010 - 15:40
What the For Loop?
Uh, well, there's this: Disassembly of section .text: 00000000 : 0: 02 c0 rjmp .+4 ; 0x6 2: 07 c0 rjmp .+14 ; 0x12 4: 06 c0 rjmp .+12...
Friday, 26 March 2010 - 14:34
What the For Loop?
I got the dissassembly listing from VMLab. The index err occurs before the code for the loop. I added some comments: ; Generated by VMLAB AVR disassembler...
Friday, 26 March 2010 - 14:09