On Tue, Sep 23, 2008 at 05:04:54PM +0200, Sebastiaan Heunis wrote: > Hi > > I have a few questions to ask about the ADC if anyone could please > help me? I know that it has a 12-bit output, so our output is between > 0 and 4095. I would just like to know how this ADC input gets > converted after leaving the adc_interface block in the FPGA. In other > words, how are positive and negative numbers represented, etc? The > FPGA converts the 12bit input to a 16bit output. What is done to get > it from the 0-4095 input to a 16bit output with + and - numbers? > > Thank you very much. > > Sebastiaan
See especially pages 8 and 9 of http://gnuradio.org/trac/attachment/wiki/UsrpFAQ/USRP_Documentation.pdf Negative numbers are 2's complement. Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
