xuhuibin0822 / hijack-main

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I am not getting output on mic nor on iPhone's oscilloscope app #12

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago
What steps will reproduce the problem?
1. flashed the firmware on hijack device.
2. opened the oscilloscope application on iPhone with full volume
3. Gave uart data input (0-3.3v) to A6 pin of hijack device.

As expected i should get fsk output on mic which i am not getting, neither i am 
getting any waveform on oscilloscope app.

i have checked waveform's on external oscilloscope, which resulted to a 
constant 0.8v dc voltage on mic with or without data given to the input. These 
are the measurements obtained
Vcc = 2.73v, Right = 0.8v (22khz), Mic=0.8v

I have even checked the GPIO pin (P1.7) where i am getting squarewave's after 
inputting the data.

Can u please suggest some pointers, so as to know where i am going wrong.

Original issue reported on code.google.com by omkarsmu...@gmail.com on 11 Jul 2013 at 1:20