Date : Tue, 23 Nov 2010 06:00:12 +0000
From : afra@... (Phill Harvey-Smith)
Subject: Harddisc fakery using a microcontroller
On 23/11/2010 04:14, Bob Devries wrote:
> Rick,
>
> according to specs here:
> http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en010304
>
> The 18F4620 has 64KB program memory, 3968 bytes RAM and 1024 bytes EEPROM
You might be better off with one of these :
http://atmel.com/dyn/resources/prod_documents/doc8272.pdf
AVR Atmega 1284, 128K of flash and 16K of ram, also available in DIP,
and it should also be noted that the PIC's devide their clock by 4 so a
40MHz PIC really only runs at 10MHz, however a 20MHz AVR runs at
20MHz..... The AVR I believe also has an easier to cope with memory
achitecture, however some of the PICs do have the asvantage of an
onboard latch.
Or you could use a 5V tollerent ARM.......
Cheers.
Phill.