User guide

midon design
1WSwitch User Guide Version 1.02 Page 20 of 28
8. Software Change History
Table 4 1WSwitch Software History
Version Date Major Changes from Previous Loads
1.02 11/17/2008
• Minor glitch in INI command
• Added “Found…” message to INI output
1.01 10/12/2008
• Final production version of software
8.1. Upgrading 1WSwitch Software
Midon Design strives to continue to add value to the 1WSwitch product and, as a
result, we release new features to the 1WSwitch software from time to time.
Upgrading 1WSwitch is easy. Software updates can be ordered from our web
pages. Upon receipt of your new chip containing the upgraded software, return
the original chip to Midon Design and cite the order number. If we receive the
device back within 30 days of the upgrade order, we will credit your PayPal
account with half the price of the upgrade, less shipping costs. Alternatively, you
can apply that credit towards a future purchase from Midon Design.
8.2. Upgrade Instructions
1. Remove power from the 1WSwitch!
2. Using a small screw-driver, or similar tool, gently remove U1, the
68HC908KX8 micro-controller, by inserting the screw-driver between the
micro-controller and the DIP socket that it is inserted to. The location of
U1 is shown in Figure 5.
3. Make sure that you are grounded, or adequately static free, and then
insert the new micro-controller into the socket. Care should be taken to
observe the correct polarity. The end of the micro-controller with a small
notch, or a dot in the left corner, should be positioned to be close to the J1
connector as per the diagram below.
4. Make sure that all micro-controller pins are seated in the socket. Check
for pins that may have bent inwards.
5. Restore power to 1WSwitch.
6. Enjoy your new features.