AVR-Chat

Hi Bob,

Yup, the AVR doesn't generate any waveform either...  Really 
confusing!


--- In AVR-Chat@yahoogroups.com, BobGardner@... wrote:
>
>  
> In a message dated 4/8/2007 1:24:58 A.M. Eastern Daylight Time,  
> anding_eunding@... writes:
> 
> am  totally perplexed!  I'm trying to set up fast PWM on 16-bit 
> Timer 1  of the ATMega 168 in mode 14 (i.e. fast PWM, TOP = ICR1).
> 
> It "doesn't  work", and three strange things are happening which 
I've 
> investigated  thoroughly on in the AVR Studio debugger:
> 
> - I cannot write 16 bit  values to OCR1A or OCR1B, they get masked 
off 
> as 9 or 10 bit values insted  during the write.
> 
> - I cannot write Clock Select = 2, when I try to, the  clock source 
> remains zero
> 
> - If I write a Clock Select = 1, I get  dual slope PWM, not single 
> slope fast PWM as expected for mode  14.
> 
> 
> 
> 
> =========================================
> Tried running it on the AVR yet? Maybe the simulator doesn't do 
mode 14  
> right?
> 
> 
> 
> ************************************** See what's free at 
http://www.aol.com.

> 
> 
> [Non-text portions of this message have been removed]
>

In a message dated 4/8/2007 1:24:58 A.M. Eastern Daylight Time,  
anding_eunding@yahoo.com writes:

am  totally perplexed!  I'm trying to set up fast PWM on 16-bit 
Timer 1  of the ATMega 168 in mode 14 (i.e. fast PWM, TOP = ICR1).

It "doesn't  work", and three strange things are happening which I've 
investigated  thoroughly on in the AVR Studio debugger:

- I cannot write 16 bit  values to OCR1A or OCR1B, they get masked off 
as 9 or 10 bit values insted  during the write.

- I cannot write Clock Select = 2, when I try to, the  clock source 
remains zero

- If I write a Clock Select = 1, I get  dual slope PWM, not single 
slope fast PWM as expected for mode  14.




=========================================
Tried running it on the AVR yet? Maybe the simulator doesn't do mode 14  
right?



************************************** See what's free at http://www.aol.com.


[Non-text portions of this message have been removed]