SOFTWARE MANUAL C32
24 ATTACHMENT C: THE BOOTLOADER
24.1 DOWNLOADING FIRMWARE, FONTS, LOGOS OR BATCH FILES
The printer is equipped with a bootloader to change firmware, fonts or addOns. The bootloader is generally designed to
boot via more than one interface. Actually only USB is implemented.
In USB operation the bootloader is carried out as a particular USB printer class device with its own USB PID. Activating the
bootloader means logging off the printer device and logging in the bootloader as new device. As soon as the bootloader is
stopped, it is logged off in the computer as a device and the printer device is again logged in.
Starting the system is always also starting the bootloader. Then the paper is checked. If paper is available, the application
is started immediately. If no paper is available the bootloader waits for 2 seconds for bootloader commands. In remote
operation with a download software these 2 seconds are enough to activate the bootloader process. If you press the feed
button during start up of the system and paper is not available, this waiting period is extended by further 30 seconds. This
is sufficient time to activate the bootloader process manually.
If the bootloader process is not activated within this time, the firmware is automatically started. If no valid firmware
exists, the printer remains in bootloader mode.
When an application is updated, the flash area needed for the application is cleared after receipt of the first data portion.
This may cause several seconds of idle time. During this time you ought to avoid USB requests.
If an error occurs during download the controller remains in the bootloader mode and waits for a new download.
For detailed informationen please refer to the Software Manual Bootloader SoMAN-C32-E-0955.
GeBE Elektronik und
phone
+49.89.894141-0
GeBE-document-no. SoMAN-C32-E-V2.2-0793
Feinwerktechnik GmbH
fax
+49.89.894141-33
date
July 7, 2020
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page 162 | 166
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