very careful when using a fully charged gell cell to power the rig!
Spare DC power plug:
Mouser part number 171-3218-EX $1.22
Reprogramming the MPU.
There is a row of pads above the MPU labeled “programmer”. These bring out the programming pins for the
MPU, so that the firmware can be upgraded or changed. Several people have modified the firmware to provide
additional or different features to the rig. To reprogram the MPU, a simple level shifting interface must be
constructed to go between a PC with a parallel port and the programming pads on the main board. As shown
below:
In addition to the interface, you will need to install the MPS430 IAR development program to your PC. This
program can be found in the MPS file folder with the name “FET_R451.exe” Double clicking on this will start the
installation program.
The file folder labeled “MSP” on the CD should be copied to your hard drive, either in the C root directory or “My
Documents” folder. Open the IAR program and select “open existing project” from the dialog box and direct it to
look in the MPS folder. The project “ATS3B_digi should show up and select that and click OK.
The source code file will now be displayed and can now be worked on if so desired. To reprogram the MPU with
this file, connect the programming cable to the LPT1 parallel port of your PC, apply power to the ATS3B board
and then plug the header pins from the interface cable into the board. The ground pin end goes into the pad hole
to the left of the MPU, as seen with the MPU below the programming port pins. A SIP socket is not needed for
the pins, the fit into the board is tight enough to the pins in the SIP plug to make reliable contact.
Now click on the C-Sky icon in the tool bar (looks like a magnifying glass) and the programming should start.
If you wish to program a different file into the MPU, add that file to the MPS folder and then add it to the list of
files. Click on that file name to make it active and proceed as above.
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