American QRP Club NUE-PSK Manuale dell'operatore - Pagina 11

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In general, the process is simply to power up the modem in a special way with the serial

adapter connected, and then run a program called prog on your PC.

Important ... If you haven' t yet proved out your serial adapter connection between

your PC and modem, you should first follow the steps outlined on the web page

Serial Interface Checkout (http://www.nue-psk.com/serial_interface). If you

cannot do the operation specified there, you will not be successful trying to load new

software into the modem.

First, you' ll need to "get ready" by first doing a couple of things ...

1) Determine the COM port number of your USB or RS-232 serial port -- You can find

this out by clicking START and then right-clicking My Computer. Select Properties and then

the Hardware tab. Click Device Manager and find the Ports line item in the list. Expand that

line item and see that the Communications Port will have a COM number shown. That is the

serial COM port number that you' ll use.

2) Get the PROG program onto your local computer -- You can download prog from

http://www.nue-psk.com/serial_interface/prog.exe. Save the file in a convenient place,

like at the root of your C drive. (When your computer prompts for the save location, enter

C:\ )

3) Download the latest modem software to your computer -- Download the software file

modem1_20FPE.zip from http://www.nue-psk.com/software/modem1_20FPE.zip, unzip

the file, and place it in the same location as you did the prog program above.

So, now that you are ready, next perform the following steps to connect the PC to your

modem using your serial port ...

4) Connect the serial interface between the NUE-PSK modem programming port and

the PC -- You will typically need to connect your serial adapter to a serial port cable that is

plugged into your computer, and then connect the adapter to the 4-position "Field

Programming" pinheader (P4) located on the bottom side of the modem pc board, as

accessed form the battery compartment.

5) Open a Command Window on the PC -- You can bring up this window by clicking in

START, Run ... and enter Command. Navigate to where you saved the prog.exe program.

If this was at the root of the C drive, just enter CD \ .

6) Enter command to run the "prog" program -- From the prompt inside the Command

Prompt window, type the following command line ... but do not yet press <Enter>. For

example, on my system that uses COM1 serial port, I would type ....

7) Power up the modem in a special way -- Hold down the "Select" button on the Modem,

while turning on the power switch. This commands the modem to look to the serial port for

about 10 seconds before it continues powering on normally. Then quickly, within these 10

seconds of turning on the modem, press the "Enter" key on the PC keyboard to execute the

command you previously entered.

8) See the PC screen start displaying the downloading indicators -- See the PC screen

show a series of "periods" as the software gets downloaded to the modem and burned into

flash. You will see about 3 rows of the periods and then it will stop. At that point the modem

will automatically restart and you' ll see the splash screen display the new version number

"1.20".

NUE-PSK Digital Modem Operator's Manual, ver 1.20

prog -i com1 modem1_20FPE.hex