conFUSE bits

[Blob]

Hello all,

I am finishing my pic project.
Now I want to keep my code protected from reading using the FUSE bits.

I use a 18f2620

the situation is like this:

I use serial communication to communicate through a ftdi to the USB of my pc.

in the serial loop I write data to the eeprom and also to the program memory (reserved locations)

The program memory is written in blocks of 64 bytes but is read in 2 or 4 bytes.


In the 18f2620 I have following "protection" FUSE bits at my disposal:

PROTECT Code protected from reads
CPB Boot Block Code Protected
CPD Data EEPROM Code Protected
WRT Program Memory Write Protected
WRTC configuration registers write protected
WRTB Boot block write protected
WRTD Data EEPROM write protected
EBTR Memory protected from table reads
EBTRB Boot block protected from table reads

In order to have my code working, including read-write from within my "serial loop" I have to set the fuse bits like this:

[PCM programmer]

To protect your code from being read, at a minimum you need to use
these fuses: