Canon CXDI-80C, Руководство по обслуживанию

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4. Repair Guide
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5. PCA-XIF board firmware updating and recovery
5.1 PCA-XIF board firmware updating
5.1.1 Introduction
The PCA-XIF firmware incorporates an http server to enable its management and control to be
operated via a web browser. This section described the operating procedure for updating the
firmware from the web browser.
The PCA-XIF board has two code areas—one for the normal codes and one for backup code—
as areas where the firmware is stored. The backup codes are positioned at the head of the ROM
while the normal codes are stored in an intermediate area of the ROM. When the power is
turned on, the backup code initializing routine boots, and the backup code body boots when the
normal codes have been erased for some reason or when the BOOTSEL switch on the board has
been pressed. Unless other specific action is taken, this routine boots the normal code body.
For regular updating, operation is performed in such a way that only the normal codes are
updated. This has the effect of preventing the board from failing to boot since the backup codes
at the ROM head are preserved even if a power failure should occur during updating, for
example. The only time when the backup codes are updated is in special situations such as when
a fatal bug is found in the backup codes.
This section describes the procedure for updating both the backup codes and normal codes, but
unless otherwise specified, the backup codes should not be updated.
5.1.2 Basic operations performed using web browser
The PCA-XIF management screen can be accessed by inputting the IP address of the PCA-XIF
board in the URL field of the web browser. When the board is shipped from the manufacturing
plant, the IP address is 192.168.100.96 so this is the address which is normally input. When the
address has been changed from this default setting, input the new address.
If the IP address which has been set is no longer known, turn on the power while pressing the
BOOTSEL switch on the board (or press the RESET switch): The backup codes are forcibly
booted, and the IP address is set to 192.168.100.96.
* This operation is referred to as the “forced backup boot operation.” For details on the
actual operations and the precautions to be heeded, refer to “5.2.2 Forced backup boot
operation.”
When the screen has been accessed successfully by the web browser, the top page is displayed.
When the link on the page is clicked, the management and control pages are displayed. If, when
an attempt has been made to display a page using the web browser, a screen such as the one
shown below requesting that the password be input has appeared, input the user name and
password given below.
Display dialog box
User name: cxdi
Password: service