User's Manual

4 - Attach one end of the parallel cable to the 25pin connector on the right side of

the MDK2001. Connect the other end to the parallel port of the PC.

5 – Place the power switch located at the rear of the MDK2001 in the OFF (down)

position. Connect the power jack of the MDK power supply into the power

receptacle next to the power switch. Insert the power adapter into any available

110 VAC outlet. Turn the power switch into the ON (up) position. The RI/WIP,

CTS, and PWR lights should be illuminated.

Upgrading the WHM900 Code

1 – Turn on the PC and insert the Flash Programmer Installation Disk.

Using Windows Explorer, select the appropriate disk location and then click the

Browse button. Select the appropriate Batch file for the operating system your PC

uses (Windows 95, 98, or NT). When the batch file is finished loading, the

Chipcon Flash Programmer box will appear. Remove the Chipcon Flash

Programmer disk and insert the New Hex File Code Disk. Select Browse and

then the new code hex file. Verify that Chipcon has new hex file displayed as well

as the proper parallel port and Erase, Program, & Verify is selected. Click on “ Do

it”. The new code will now be loaded into the WHM900. “ Operation Completed”

will be displayed on the bottom status line to indicate that the code upload is

finished.

2 – To properly complete the process, turn of the power to the MDK2001

Development Board, and place the two mini jumpers back to the Half On Half Off

position. Turn the MDK2001 power on. Use the normal serial port connection and

enter the “ AT&F&W” command. The WHM900 should respond with the OK

result code. Use the “ATI4” command to verify that the new code is loaded. The

WHM900 is now ready to be reconfigured with the appropriate AT commands.