Hi guys,

Recently been given a project of reading files from a CF (Compact Flash) card using the PIC18F67J50. The actual firmware written is for reading a 2GB CF card. My boss ask me to try whether it can read a 8GB CF card or not. The result is it can't read.
May I ask is there any difference on a 2GB CF card and a 8GB CF card?
Is there any addressing of memory difference?
Is there any internal structural difference?
Can I use the way of reading 2GB cf to read the 8GB cf?

 

Is there any sample code or instruction on coding of how to read from FAT16 or FAT32 formatted cards?