On Thu, May 18, 2006 at 08:11:30PM -0400, Garrett McGrath wrote: > I think i've narrowed down the problems with my code to the mux setting for > the usrp system. Is there anywhere you could point me to for a list of > possible values for that mux, currently i'm just using one i found in a > demo > program but can't seem to find a list of all possible values. > -Garrett McGrath
Use the source, Luke ;) >From usrp/host/lib/usrp_standard.h: Receive mux: /*! * \brief Set input mux configuration. * * This determines which ADC (or constant zero) is connected to * each DDC input. There are 4 DDCs. Each has two inputs. * * <pre> * Mux value: * * 3 2 1 * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 * +-------+-------+-------+-------+-------+-------+-------+-------+ * | Q3 | I3 | Q2 | I2 | Q1 | I1 | Q0 | I0 | * +-------+-------+-------+-------+-------+-------+-------+-------+ * * Each 4-bit I field is either 0,1,2,3 * Each 4-bit Q field is either 0,1,2,3 or 0xf (input is const zero) * All Q's must be 0xf or none of them may be 0xf * </pre> */ bool set_mux (int mux); Transmit mux: /*! * \brief Set output mux configuration. * * <pre> * 3 2 1 * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 * +-------------------------------+-------+-------+-------+-------+ * | | DAC3 | DAC2 | DAC1 | DAC0 | * +-------------------------------+-------+-------+-------+-------+ * * There are two interpolators with complex inputs and outputs. * There are four DACs. * * Each 4-bit DACx field specifies the source for the DAC and * whether or not that DAC is enabled. Each subfield is coded * like this: * * 3 2 1 0 * +-+-----+ * |E| N | * +-+-----+ * * Where E is set if the DAC is enabled, and N specifies which * interpolator output is connected to this DAC. * * N which interp output * --- ------------------- * 0 chan 0 I * 1 chan 0 Q * 2 chan 1 I * 3 chan 1 Q * </pre> */ bool set_mux (int mux); _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
