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

2008-09-16 Thread Stefan Brüns 
On Tuesday 16 September 2008 05:05:37 Tom Rondeau wrote:
 Stefan,

 Thanks, that was indeed a bug. It has been fixed in my branch as of r9682.

 This is also the first time that I've had the equipment in my new place
 to test the transmitters, so, frankly, I'm impressed that this is the
 only bug so far.

Found some more, added a tx test application, and streamlined the flexrf code 
somewhat.

See followup for patches.

 Tom


-- 
Stefan Brüns  /  Bergstraße 21  /  52062 Aachen
mailto:lurch at gmx.li  http://www.kawo1.rwth-aachen.de/~lurchi/
   phone: +49 241 53809034 mobile: +49 151 50412019


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

2008-09-15 Thread Tom Rondeau 

Stefan Bruens wrote:

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,

Thanks, that was indeed a bug. It has been fixed in my branch as of r9682.

This is also the first time that I've had the equipment in my new place 
to test the transmitters, so, frankly, I'm impressed that this is the 
only bug so far.


Tom



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

2008-09-09 Thread 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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