[hpsdr] Ozy/Mercury Protocol

[Bill Tracey]

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)


At 10:04 AM 8/28/2009, Alberto I2PHD wrote:
>***** High Performance Software Defined Radio Discussion List *****
>
>
>Does the DAC on the Mercury card have any way to control its gain, 
>or is it fixed ?
>In other words, does it exist a  writei2c  command for it as for the 
>Penelope card ?
>
>TNX
>
>73  Alberto  I2PHD



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