readme.txt

来自「在dsp芯片TOM320VC5402下的电话接口程序实现」· 文本 代码 · 共 28 行

TMS320VC5402 DSK - DAA DEMO
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This example demonstrates the use of the telephony interface of the DSK. The DAA and 
handset codecs are setup and then the application waits for an incoming ringer.  On the
second ring detected, the line is picked up (off-hook) and a conversation can be carried
out between the DAA and handset interfaces.

Below are instructions on how to run this demo:

1.  Connect a microphone to the MIC socket and a speaker to the SPKR socket on the DSK board.

2.  Connect a line simulator to the RJ-11 (telephone) socket on the DSK board and plug a
    handset into the simulator.

3.  Connect your parallel port cable to the parallel port connector on the DSK.  You may
    use an XDS510 connector if you have one and wish to do so.

4.  Connect the power supply to the DSK board and power it up.

5.  Start up code composer studio and load the codec demo program (executable), "daa.out".
    Run the DSP.  The LED's on the DSK will start blinking.

6.  Pick up the telephone handset connected to the line simulator and dial the DSK board.
    Refer to your line simulator documentation for instructions on how to do this.

7.  After the second ring, the line will be picked up by the DSK.  You should now be able to
    hold a conversation between the mic/speaker interface and the telephone handset.