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View Full Version : Oscillator Frequency for AT89S52



devpriya
07-31-2005, 09:49 PM
I tried 8MHz and 10MHz crystal oscillators for my AT89S52 with 22pF and 33pF (all combinations tried), but couldn't get it programmed. It gives "Error writing flash" using the AEC software and their circuit. Please tell is there any error with my frequency selection?

Juggy
11-04-2005, 04:55 AM
12 MHz seems to be working for me. :)

Juggy
11-04-2005, 05:46 AM
http://www.atmel.com/dyn/resources/prod_documents/doc1919.pdf

might be useful... good luck

EmbeddedGuy
11-04-2005, 06:52 AM
Hi,
It might be possible your chips FLASH get diffect, it also happen with some people. Use any other chip to confirm where is the problem.

Bye