Many embedded control applications, where sensor
offsets, slopes and configuration information are mea-
sured and stored, require a calibration step. Tradition-
ally, potentiometers or Serial EEPROM devices are
used to set up and store this calibration information.
This application note will show how to construct a pro-
gramming jig that will receive calibration parameters
from the application mid-range PICmicro™ microcon-
trollers (MCU) and program this information into the
application baseline PICmicro using the In-Circuit
Serial Programming (ICSP™) protocol. This method
uses the PIC16CXXX In-Circuit Serial Programming
algorithm of the 14-bit core microcontrollers. AN656
In-Circuit Serial Programming (ICSP) of Calibration Parameters
Using a PICmicro Microcontroller
PROGRAMMING FIXTURE
Author: John Day
Microchip Technology Inc. A programming xture is needed to assist with the self
programming operation. This is typically a small
re-usable module that plugs into the application PCB
INTRODUCTION being calibrated. Only ve pin connections are needed
……
