EV6240 datasheet(29/47 Pages) CMLMICRO

29 / 47 page

Evaluation Kit for CMX624/CMX644A

EV6240

UM6240/3

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

status information. The bottom window contains prompting and progress information plus user input.

When the top window first appears the user will be prompted to enter the number of the serial

communications port to which the EV6240 board is connected, and then, which device is to be

programmed. For the EV6240 board select option 2, PIC16C77. Once the user has entered this

information, the following commands may be selected:

Press F

to load file

Press C

to configure device.

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:

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

this programming software.

The PIC

µC supplied has a Configuration Word which is preset 3FB1H. 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.

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.

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

µC, by pressing the RESET switch (SW1) on the EV6240 Evaluation Board. This is because

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

incremented.

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.

Programming the EV6240 PIC16C77 using the PICPROGB software takes approximately 2

minutes.

TO LEAVE PROGRAMMING MODE

Remove power from board (including the programming voltage, V

PP).

Set switch, SW3, to ‘OP’.

Power up board as described in previous sections for normal operation.

EV6240 Datasheet(PDF) 29 Page - CML Microcircuits

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