I've been building this board and it's about 90 % populated.
While I'm waiting for parts, I was wondering about memory.
1. For the SD Card, what is recommended size & brand ?
2. 27C256 Eprom ?
My Data I/O took a shit a long time ago and I sold my NeedHams. I do Have a
EasyPro 90B that will do AT27C256 but they are OTP. I'm accustomed to erasing
& reprogramming, but it takes 30 mins to erase under UV light. I have many UV
Eproms, but nothing to program them. They are just too old.
I see Mouser has;
http://www.mouser.fr/ProductDetail/Atmel/AT27C256R-70PU/?qs=sGAEpiMZZMutXGli8Ay4kN4PpSZpwfyv80jBz050W6M%3dConsidering they only cost $1.98 each and are OTP, the "low cost"-vs-"erase time" makes sense.
I have never used OTP, but I could buy a few and write a few and compare. Once I know my
programming hardware works I could go forward....