Flash Download Commands; Switch To Flash Download Mode - NCR 7158 Owner's Manual

Flash Download Commands

These commands are used to load firmware into the printer.
The commands are listed in numerical order according to their
hexadecimal codes. Each command is described and the hexadecimal,
decimal, and ASCII codes are listed.
There are three ways to enter the Download Mode.
1. Powering the printer up with DIP Switch 1 up.
2. While the printer is running normally, use the command Switch to
Flash Download Mode, to leave normal operation and enter the
Download Mode.
3. If the Flash if found corrupted during Level 0 diagnostics the
Download Mode is automatically entered after the printer has reset.
The printer never goes directly from the Download Mode to normal
printer operation. To return to normal printer operation either the
operator must turn the power off and then on to reboot or the
application must send a command to cancel Download Mode and
reboot.

Switch to Flash Download Mode

ASCII:
Hexadecimal:
Decimal:
Puts the printer in Flash Download Mode in preparation to receive
commands controlling the downloading of objects into Flash Memory.
When this command is received, the printer leaves normal operation
and can no longer print transactions until the Reboot the Printer
command (1D FF) is received or the printer is rebooted.
This command does not affect the current communication parameters.
Once the printer is in Flash Download Mode, this command is no
longer available.
ESC [ }
1B 5B 7D
27 91 125
Chapter 7: Programming Guide 7-151