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DM300019 데이터시트(PDF) 35 Page - Microchip Technology |
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DM300019 데이터시트(HTML) 35 Page - Microchip Technology |
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35 / 50 page ![]() Demonstration Program Operation © 2006 Microchip Technology Inc. DS51584B-page 31 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: If all tests passed, then none of the LEDs will blink. Blinking LED Test Failed Reasons for Failure RD4 UART UART driver chip failed; UART shorting jumper not connected on J1 RD5 Keypad S1 and S2 not working properly RD6 Potentiometer Potentiometer R13 faulty RD7 Digital Potentiometer/Op Amp Digital Potentiometer/Op Amp failed |
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