>
> I have an OOPic-R board with firmware C.1.1+. After applying the power
> to the board, the power good LED does NOT light up. Connect through RS-
> 232 with PC does not show any response. But pushing the 3 little
> buttons on the board do light up the LED on top of it. Is the board
> defective? How I can check if the OOPic is working ok?
>
I don't think there is a "Power Good" LED. There is an "EAC" LED that
blinks rapidly (looks dim) on the clock signal for the EEPROM.
The 3 LEDs will light up when the buttons are pushed whether the OOPic
works of not.
Check the 5V power at the EEPROM. Pin 8 is +5V and pins 1,2,3,4 & 7
are ground. Measure between 1 & 8. This keeps the probes apart and
makes it less likely you will short the voltage regulator.
MANY users connect a battery or wall wart to the board and get it
backwards. The small regulator for the OOPic and EEPROM is instantly
fried.
Check the 5V on the 3 pin connector for IOLine 1 (for example). The
center pin is +5V and the outside pin is Gnd. This power comes from
the large regulator and is separate from the regulator for the OOPic.
Pull the EEPROM (power off first) and then power up try to download a
program. There is the possibility that there is an errant program in
the EEPROM and the OOPic won't respond to the serial port. If
communications with the IDE is established, there will be a dialog box
telling you to insert the EEPROM. Don't get it backwards!
Whatever program you download, make sure it has:
OOPIC.Delay = 500
as the first executable statement.
Richard
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