Enginering Change Notice

An error in both the Analog Serial Control (ASC) and the Digital Serial Control (DSC) boards has been discovered. The error pertains to the P1 connector on both boards and effects the programming of the microprocessor with a programming device such as the IDC-2.

The problem is that the connections on the board (P1) are reversed. This could cause damage to the external programming equipment and this board.


A simple fix is available. If you have a crimping tool for the RJ-11 connector and a short lenght of six conductor cable and connectors, this cable can be made by the kit builder. Just assemble the cable with the retaining tangs opposing each other, as shown in the picture below. This is the opposite of the original programming cable supplied with the programmer.

Only use this cable with these boards. It is not appropriate to use with any other manufactures boards.


I have the cable available, at no charge & on request, and a cable will be shipped as part of the SSA Foundation Kit and SSA Control System Kits until further notice.

To order a (Null twist) programming cable at no charge, use this button (normal shipping & handling charge apply)
Modification of the microprocessor used on the Analog Serial Controller (ASC_Rev0).

 The foot print for the microprocessor on the Analog Serial Controller board is designed for a package for which there is no compatible PIC micropressors. This is the microprocessor as you have received it in your kit. It must be modified to fit into the available footprint, U2.

First, make sure that you are working at a anti-static workspace. Second, using a pair of needle nose pliers, carefully straighten out each pin. The pins are made of soft material, so be careful not to squeeze the pin very hard.

The next process is to form all of the pins into what is similiar to a J-Lead (used on other types of surface mount chips). I have found that this can be done by placing the package along one long side, perpendicular to the worksurface. Using a reasonable amount of force, roll the chip so that the  pins are curled under the package. Flip the chip over and repeat the processos on the second row of pins.

The bottom of the package should look similiar to this picture. Take a moment to make sure that all pins are squeesed so that they are close to the package. Also check each of the pins so that they point to the pin directly across the package from it. This completes the modification. The modified package will now fit on the available footprint. It's not pertty but it works.

In a different light I discovered something that could cause problems. Please check to make sure that you do not have any whiskers of metal like the one between the third and fourth pins from the right in the foreground. It can be removed by a small pick like tool.