Kramer Electronics VS-44HC - Manual (Page 35)

Flash Memory Upgrade
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Figure 22: Loading the Hex
6. The Open File window opens. Select the correct HEX file that contains the
updated version of the firmware for VS-44HC (for example 44M_V1p2.hex)
and click Open.
7. Press the keyboard shortcut key F3 (or select the “ Communication / RS232”
command from the Settings menu, or press the keys: Alt SCR).
The “ RS232” window appears. Change the COM port according to the
configuration of your computer and select the 9600 baud rate:
Figure 23: RS-232 Window
8. Click Connect.
In the “ Atmel – Flip” window, in the Operations Flow column, the Run button
is active, and the name of the chip appears as the name of the third column:
AT89C51RD2.