Re: [Discuss-gnuradio] Not able to set TX freq from c++ (branch trondeau/dbs) - solved (part 1)

[Stefan Bruens]

Found the bug, at least the first:
db_flexrf.cc:
-------
flexrf_base_tx::flexrf_base_tx(usrp_basic *usrp, int which, int _power_on)
  : flexrf_base(usrp, which, _power_on)
{
  /*
    @param usrp: instance of usrp.sink_c
    @param which: 0 or 1 corresponding to side TX_A or TX_B respectively.
  */

  d_usrp = (usrp_basic_tx*)usrp;
  d_tx = true;

  int d_spi_enable; // <-- shadows class member!
  if(which == 0) {
    d_spi_enable = SPI_ENABLE_TX_A;
  }
  else {
    d_spi_enable = SPI_ENABLE_TX_B;
  }
------
At least, the board is able to tune to the right frequency, and I was able to 
send a few times.

Unfortunately, after running a few other (python)  examples, it stopped 
working, so I think, the python code modifies some registers and the c++ code 
is not able to set this registers to working values.

Disconnecting power from the USRPs did not help - any hints?

Stefan
-- 
Stefan Brüns  /  Bergstraße 21  /  52062 Aachen
phone: +49 241 53809034     mobile: +49 151 50412019

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