Re: flash or Eeprom ????
Hello!
Since most MCUs are flash based, if you really need to write a single byte, then you may
consider using the internal flash space for your nonvolatile byte information.
You can usually write the program flash at runtime. The only condition is that you cannot
write in the same segment as the one your program is running from (this would be like
cutting the branch you'r sitting on).
If you use the internal flash, then you have to consider that flash can be written a limited
number of times (around 100 000???) but this is usually far more than you would need.
Dora.