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PD-1140 Hardware Manual (Rev. 1.02 / 2013-MAR-26)
17
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5
Reset to Factory Defaults
It is possible to reset the PD-1140 to factory default settings without establishing a communication link.
This might be helpful in case communication parameters of the preferred interface have been set to
unknown values or got accidentally lost.
For this procedure two pads on the bottom side of the board have to be shortened.
Please perform the following steps:
1.
Power supply off and USB cable disconnected
2.
Short two pads as marked in Figure 5.1
3.
Power up board (power via USB is sufficient for this purpose)
4.
Wait until the on-board red and green LEDs start flashing fast (this might take a while)
5.
Power-off board (disconnect USB cable)
6.
Remove short between pads
7.
After switching on power-supply / connecting USB cable all permanent settings have been
restored to factory defaults
Short these two pads
Figure 5.1 Reset to factory default settings