Evaluation Kit User Manual for PIC Board

EV6000

© 1996 Consumer Microcircuits Limited

11

UM6000/3

1.6.2

Software Description

1.6.2.1 PIC

µC Programming Software

This is supplied on disk as a self-documented executable file PICPROGA.EXE for a PC running DOS

(either directly or as a DOS window in Windows 3.11 or '95). It is not recommended for use on

Windows NT systems. Please note that this programming software does not meet the Arizona

Microchip Technology verification requirements for a "production quality" programmer. Also, it does not

support the programming of ID locations and there is no checksum facility.

The user interface consists of two windows. The top window contains the operating instructions and the

bottom window shows the command line and data communications with the PIC

µC. When the top

window first appears the user will be prompted to enter the number of the serial communications port to

which the EV6000 board is connected. Once the user has entered this number, the following

commands are displayed:

press F

to load file.

press C

to enter Configuration Word.

Currently - xxxx

press B

to check target device is blank.

press P

to program target device.

press V

to verify target device.

press R

to read target device.

press A

to view contents of program data array.

press Esc

to return to DOS.

A new function from the above table can be selected whenever the >ok prompt appears in the bottom

window.

Notes:

a) Assembler output files must be in the Intel hex format (.HEX) in order to be usable by this

programming software.

b) The PIC

µC supplied has a Configuration Word which is preset to 3FB9H if it is a PIC 16C74JW or

16LC74JW, or to 3FB1H if it is a PIC 16C74AJW or 16LC74AJW. In each case, this selects the

crystal oscillator, disables the watch dog timer, enables the power up timer and disables code

protection. The programming software currently defaults to 3FB1H. Consult Arizona Microchip

Technology for more information on the Configuration Word.

c) The "blank check" command (B) only looks at the first location. A programmed device will always

have data in this location as it is the program start address.

d) For each of the commands B,P,R and V the user will be prompted to manually reset the target

µ

C, by pressing the RESET switch (SW1) on the EV6000 Evaluation Board. This is because PIC

programming always starts from location 0000 and the program counter can only be incremented.

e) Pressing A will display the program data in the bottom window, formatted in pages of 48

consecutive locations. Use the <PageUp> and <PageDown> keys to scroll through the data.

Pressing <Esc> will return the user to the >ok prompt.