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CANFDNET-400U
High-performance Four-channel CANFD Bus-to-Ethernet Converter User Manual
Method 2: After entering the Bootloader configuration mode by operating the
configuration switch, connect to the configuration software of the host computer, and
perform upgrade using method 1. Figure 3.1 shows the configuration switch. In this way,
as long as the Bootloader program is not damaged, the upgrade can be performed, but
the operation is troublesome.
When the configuration switch is set to ON, that is, in the normal working mode, the
device will not stay in the Bootloader mode after being reset or powered on again, and will
immediately run the application. When the configuration switch is set to the CFG side, the
device reset will stay in the Bootloader mode for 1 second. During this second, if the
configuration indicator is flashing fast, the device stays in Bootloader mode. Turn the
switch to ON within this second. At this time, the time spent in Bootloader mode will
increase by 1 second. In this 1 second, turn the switch back to the CFG side to enter the
Bootloader configuration mode. At this time, the configuration indicator will keep flashing
slowly (on for 1 second, off for 1 second), indicating that it has been in the Bootloader
configuration mode. Simply speaking, set the configuration switch to CFG, turn the switch
to ON within 1 second after the device is powered on again, and then set the switch to
CFG within 1 second.
In Bootloader mode, if you do not want to perform upgrade, set the configuration
switch to ON to enter the normal working mode. The premise is that the application is not
damaged. Therefore, the configuration switch cannot be toggled during the upgrade (in
the process of downloading the firmware from the host computer configuration
software).This action will terminate the upgrade. If the application has not been upgraded,
it will not work properly. The only way to return to Bootloader mode and upgrade the
firmware properly.
Figure 6.1 Firmware Upgrade window
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