Demonstration Program Operation
If any of these tests fail, then at the end of the Tone test the LED corresponding to the
failed test will blink slowly (2 blinks/sec). For example, if RD4 blinks, it means that the
UART test failed. The table below correlates the blinking LED with each test and
indicates the possible cause for the failure:
Blinking LED
RD4
RD5
RD6
Test Failed
UART
Keypad
Potentiometer
Reasons for Failure
UART driver chip failed; UART shorting
jumper not connected on J1
S1 and S2 not working properly
Potentiometer R13 faulty
RD7
Digital Potentiometer/Op Amp Digital Potentiometer/Op Amp failed
If all tests passed, then none of the LEDs will blink.
? 2006 Microchip Technology Inc.
DS51584B-page 31
相关PDF资料
DM300024 KIT DEMO DSPICDEM 1.1
DM330012 KIT USB STARTER FOR DSPIC33E
DM330013 MICROSTICK DSPIC33F/PIC24H BOARD
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