AVR-Chat

On Fri, 14 Jan 2005 17:02:56 -0000, you wrote:

>
>OK I bought a couple of ATMEG8515 and programmed them with the hex file (and after 
>setting the fuses correctly) it seems to work properly. So many thanks for the 
>suggestion - I was really expecting a lot more problems...

WARNING!!! 

Does your product use the internal eeprom ? 

If so, you WILL have problems, which may well only surface later (like when the product is in the
field, on th eother side of the world...!) 

This is because the high-order eeprom address register (not present on the 4414) is not initialised
on reset, so what you effectively get is  a random page-swap. You can fire up the device and write
to the eeprom, and it will l read back OK, but on the next power-up here is a 50% changce it will
power up in the wrong bank, and accessthe wrong eeprom location.