I am just starting to learn and have a simple question about reading the Calibration Data
on 3 new 12f675's and wanting to make sure I have the info before starting to try and program with the Pickit2.
Well I have been doing some reading and looking at the structure of the 675's If I understand correctly as this statement from the Data sheet Say's
A calibration instruction is programmed into the last
location of program memory. This instruction is a
RETLW XX, where the literal is the calibration value.
The literal is placed in the OSCCAL register to set the
calibration of the internal oscillator.
When I use the pickit2 to read the program memories it returns on 2 of the chips on last address RETLW 0x34 and on the other one it is RETLW 0x2c. Then I went to the special function Register OSCCAL
address 90 but the hex is 0x00.
Is this what I should be seeing when I have the pickit2 read the memories?
Just trying to figure things out a step at time . BABY STEPS THAT IS!