AVR-Chat

--- In AVR-Chat@yahoogroups.com, Dave VanHorn <dvanhorn@d...> wrote:
> At 03:51 PM 9/24/2004, mikkohelin wrote:
> 
> >I implemented a flash burner for AT29C256 using XMODEM protocol 
with 
> >8515 and STK200. Xmodem (checksum) uses 128 byte page size while 
the 
> >Atmel flash eeprom use 64 byte page size. So I use for loop 
(~40000 
> >iterations, null body) for delay after writing the data into 
flash. 
> 
> My first suggestion, would be that you poll for write complete, 
rather than using the static delay. It will be faster as well.

I tried /DATA polling, didn't work. On AT29C256 pin I/O6 (bit6) can 
also be polled, during program cycle it will toggle. I have to check 
my code, maybe I didn't do it properly. Still wondering what happens 
there during the delays generated by for loops ..