Kramer Electronics VP-8x4 - Manual (Page 26)

Flash Memory Upgrade
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Figure 13: Loading the Hex
6. The Open File window opens. Select the correct HEX file that contains the
updated version of the firmware for VP-8x4 (for example
8x4M_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 14: 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.