Yahoo Groups archive

Analogue-sequencer

Index last updated: 2026-04-28 23:15 UTC

Message

P3 Update

2005-02-23 by colinfraser_com

Folks,

I've had bad news and good news this week...
Bad news was the CPU used in P3, the T89C51RD2 has been discontinued 
and my suppliers have no further stock. That was a shock, I can tell 
you...
The good news is that it has been superseded by a new part, the 
AT89C51ED2.
However there are changes to the way the in-system programming works 
on this CPU that means I'm going to have to write a new bootloader 
for the new processor. So shipping of PCB/CPU only kits will be 
delayed until I can get that done and thoroughly tested.
This is likely to mean a new bootloader will also be required for 
existing units so I don't have to generate different firmware 
images for old and new processor versions.
Hopefully this work will be complete before the cases arrive, so 
wont delay full kits or ready built units.
I'll keep you posted.

Cheers,
Colin f

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.