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Bill Tracey wrote:
<blockquote cite="mid:md5:FFFFFFE952FFFFFFA46A3CFFFFFFC3FFFFFF84FFFFFF"
type="cite">
<pre wrap="">Are you referring to the TLV320AIC23B on Mercury? It's not I2C
controlled, but SPI controlled from the FPGA. It was done this way
because the TLV320... can only have two different I2C addresses and
we'd used both of them on Janus and Penny.
I don't think we currently expose a way to change how the chip is
initialized. Is there a reason we need to? I didn't think the
output side of that chip had anything interesting to control.
Regards,
Bill (kd5tfd)</pre>
</blockquote>
Bill,<br>
<br>
thanks for the answer. Yes, I was referring to the DAC chip used to
playback the demodulated audio<br>
through the speakers. Testing my software I thought that maybe it could
have been somewhat useful to<br>
have a hardware volume control, if the chip has a mixer embedded in it.
<br>
<br>
But it is not absolutely necessary, I was just wondering if maybe it
was there and I had not seen the<br>
doc where it was described.<br>
<br>
TNX<br>
<br>
73 Alberto I2PHD<br>
<br>
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