mbos8a_eng (13.03.2014)
- 20 -
Kompetent für Elektroniksysteme
mbos8a_eng (13.03.2014)
- 21 -
Kompetent für Elektroniksysteme
Service Program
The
Major BOS 8a
has a
RS-232-interface
with the following specifications:
19200 Baud, 1 startbit, 8 databits, no parity, 1 stopbit
The connectors for the RS-232-interface (RXD, TXD, GND) are located on the 8-pin
RJ45-plug
ST15
inside. See section
Sockets Pinout.
To use the service program, a simple terminal or a PC with terminal program has to be
connected to this RS-232-interface.
For this purpose the data format resp. the interface has to be set to the above mentioned
specifications.
If
Windows
is installed on your PC, you can configure the standard Windows terminal
program (e.g. Hyperterminal) accordingly, choosing the option
protocol = X on / X off.
(Therfore you only have to connect the three pins
RXD, TXD
and
GND
.
If the terminal (or the PC) is connected correctly, you will have access to the service
program and to a range of service commands for:
- programming mode EEPROM
- software reset
To start the service program just enter <
$A2
>, <return>. The following text will appear on
the screen:
Online - Monitor PIC 16F877A Software ‚MBOS8a‘ V 2.0
vom {Datum} (C) FunkTronic ‚01-07
Rxxx Read EEPROM Register xxx
Pxxx:yy Program yy in EEPROM Register xxx
X Reset
#
Please note: the character _ means <space> resp. <blank>.
Monitor Status
The service program will usually be locked after the device has been turned on
(monitor status = ´
00`
). In this case the service program has to be started by entering
<
$A2><CR>
(=Enter). Then the
monitor menu (
see above) appears on the screen.
If the
Major BOS 8a
is to be programmed or controlled automatically by a PC or a control
center computer it may be useful for the monitor function to be immediately available
when turned on (monitor status =
´01`
or
´02
`).
Summary of Contents for Major BOS 8a
Page 1: ...Major BOS 8a...
