Device
and operation
CPC307
C P C 3 0 7 U s e r M a n u a l
68
© 2 0 2 2 F a s t w e l v . 0 0 6
- resetting the module's operation with the SW1 switch (RESET#);
- resetting module operation by external opto-isolated reset with a jumper installed on pins 1-2 of
the XP25 connector (paragraph
4.3.7 Opto-isolated reset/interrupt
);
- jumper installed or short-term closure of pins 1-2 of the XP27 connector, followed by restarting
the module;
- setting GPIO1 port line 3 to
“0” followed by restarting the module (see paragraph
4.3.19 GPIO
Ports
);
- de-energizing the module. The module always boots from the main BIOS copy when power is on.
Indication of watchdog timer triggering and indication of booting from the BIOS backup copy are
available by pressing the LED on pins 5-6 of the XP3 connector (paragraph
4.3.21 LED
indication
).
BIOS settings can be changed only via the BIOS Setup menu.
Note
For module version 4.x there is no BIOS backup.
4.3.16.2 CMOS memory and replaceable CR2032 battery
A replaceable 3 B CR2032 (Renata) power supply battery installed in the X1 holder ensures proper
functioning of the real-time clock (RTC) and that the BIOS settings are stored in the CMOS
memory when the module is powered off.
BIOS settings are automatically duplicated and stored in FRAM and automatically restored at
power-up if data in CMOS memory is damaged. With this feature you can use the module without a
CR2032 battery installed on it, but the system time and date are not saved.
The capacity of the replaceable DC battery is 235 mA/h. The battery current consumption when the
module is turned off is about 2 µA.
Expected/typical battery life is approximately 10 years at an ambient temperature of 23ºC.
However, the battery life is highly dependent on operating temperature.
It is recommended to replace the battery every 5 years of operation/storage of the module without
waiting for the battery life to expire.
The proper polarity (
“+” at the top) must be observed when replacing the battery. The used battery
must be disposed of in accordance with the appropriate regulations.
The CMOS_RST utility can be found on the FTP server at:
ftp://ftp.prosoft.ru/pub/Hardware/Fastwel/CPx/CPC306/Software/Drivers/DOS/UTILS/
If the current CMOS settings do not allow the module to function properly during operation and it is
not possible to enter the BIOS SETUP menu to change the settings, you switch the settings to the
“default” state. This can be done with this utility by performing the following sequence of actions:
- turn the module off, connect the COM1 port (XP9 connector) of the module to the COM1 port of a
personal computer through the
“null-modem” cable
1
and ACS00023 cable (FAPI.685611.082) from
the module delivery checklist;
- start on the PC (under Windows 2000/XP) the program CMOS_RST.EXE. This program will send
a command to the port for setting the BIOS Setup values to the default. Turn the module on.
Remote CMOS Reset for Windows 2000/XP.
Version 1.0 Copyright (C) 2000, 2007 Fastwel Inc.
Sending "reset" sequence through COM1. Press a key to abort
