EV6240 Datasheet, PDF (28/47 Pages) CML Microcircuits – Opto-Isolated serial interface capability

Evaluation Kit for CMX624/CMX644A
1.6.4 Software Description
EV6240
1.6.4.1 Terminal Emulator
Users will need to run a suitable terminal emulator on their PC in order to communicate with the PIC
µC on the Evaluation Kit. ‘Hyper Terminal’, which is supplied with the Windows ’95 and NT
installations, is suitable for this purpose.
Hyper Terminal Setup
Emulation VT100
ASCII Character set
ASCII Receiving:
Wrap lines that exceed terminal width.
COM Port Settings:
Bits per second
Data bits
Parity
Stop bits
Flow Control
19,200
8
None
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Hardware
1.6.4.2 In-circuit re-programming of PIC16C77
In order that the PIC16C77 µC may be re-programmed the existing program must be erased by
placing the device in a UV-Eraser for approximately 15 minutes.
TO ENTER PROGRAMMING MODE
(a) Remove power from board.
(b) Set switch, SW3, to ‘PROG’ and switch, SW2, to ‘NORM’.
(c) Re-apply power to board. (V_DD = 5.0V).
(d) Connect the programming voltage (V_PP = 12.5V to 13.5V) power supply between test point TP4
(+ve) and V_SS (-ve).
(e) Ensure the PIC µC programming utility PICPROGB.EXE is loaded into the PC under DOS and the
PC is connected to the evaluation kit.
(f) Reset the EV6240 board by momentarily pressing switch SW1.
USING THE SOFTWARE - PICPROGB
This is supplied on disk as a self-documented executable file PICPROGB.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.
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© 1999 Consumer Microcircuits Limited
UM6240/3