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LimeSDR input: cleaned up set NCO frequency code

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This commit is contained in:
f4exb 2017-04-20 21:18:07 +02:00
parent 11e5b3a429
commit 4534695bab
2 changed files with 5 additions and 106 deletions
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105
devices/limesdr/devicelimesdr.cpp
View File

@ -18,78 +18,6 @@
#include <cstring> #include <cstring>
#include "devicelimesdr.h" #include "devicelimesdr.h"
bool DeviceLimeSDR::enableNCO(lms_device_t *device, bool dir_tx, std::size_t chan, bool enable)
{
if (LMS_WriteParam(device, LMS7param(MAC), chan+1) < 0)
{
fprintf(stderr, "DeviceLimeSDR::enableNCO: cannot address channel #%lu\n", chan);
return false;
}
if (dir_tx)
{
if (LMS_WriteParam(device, LMS7param(CMIX_BYP_RXTSP), enable ? 0 : 1) < 0)
{
fprintf(stderr, "DeviceLimeSDR::enableNCO: cannot %s Rx NCO\n", enable ? "enable" : "disable");
return false;
}
else
{
return true;
}
}
else
{
if (LMS_WriteParam(device, LMS7param(CMIX_BYP_TXTSP), enable ? 0 : 1) < 0)
{
fprintf(stderr, "DeviceLimeSDR::enableNCO: cannot %s Tx NCO\n", enable ? "enable" : "disable");
return false;
}
else
{
return true;
}
}
}
bool DeviceLimeSDR::setNCOFrequency(lms_device_t *device, bool dir_tx, std::size_t chan, float frequency)
{
bool positive;
float_type freqs[LMS_NCO_VAL_COUNT];
float_type phos[LMS_NCO_VAL_COUNT];
if (LMS_GetNCOFrequency(device, dir_tx, chan, freqs, phos) < 0)
{
fprintf(stderr, "DeviceLimeSDR::setNCOFrequency: cannot get NCO frequencies and phases\n");
}
if (frequency < 0)
{
positive = false;
frequency = -frequency;
}
else
{
positive = true;
}
freqs[0] = frequency;
if (LMS_SetNCOFrequency(device, dir_tx, chan, freqs, 0.0f) < 0)
{
fprintf(stderr, "DeviceLimeSDR::setNCOFrequency: cannot set frequency to %f\n", frequency);
return false;
}
if (LMS_SetNCOIndex(device, dir_tx, chan, 0, positive) < 0) // TODO: verify positive = downconvert ?
{
fprintf(stderr, "DeviceLimeSDR::setNCOFrequency: cannot set conversion direction %s\n", positive ? "down" : "up");
return false;
}
return true;
}
bool DeviceLimeSDR::setNCOFrequency(lms_device_t *device, bool dir_tx, std::size_t chan, bool enable, float frequency) bool DeviceLimeSDR::setNCOFrequency(lms_device_t *device, bool dir_tx, std::size_t chan, bool enable, float frequency)
{ {
if (enable) if (enable)
@ -121,9 +49,9 @@ bool DeviceLimeSDR::setNCOFrequency(lms_device_t *device, bool dir_tx, std::size
return false; return false;
} }
if (LMS_SetNCOIndex(device, dir_tx, chan, 0, positive) < 0) // TODO: verify positive = downconvert ? if (LMS_SetNCOIndex(device, dir_tx, chan, 0, !positive) < 0)
{ {
fprintf(stderr, "DeviceLimeSDR::setNCOFrequency: cannot set conversion direction %s\n", positive ? "down" : "up"); fprintf(stderr, "DeviceLimeSDR::setNCOFrequency: cannot set conversion direction %sfreq\n", positive ? "+" : "-");
return false; return false;
} }
@ -131,36 +59,11 @@ bool DeviceLimeSDR::setNCOFrequency(lms_device_t *device, bool dir_tx, std::size
} }
else else
{ {
if (LMS_WriteParam(device, LMS7param(MAC), chan+1) < 0) if (LMS_SetNCOIndex(device, dir_tx, chan, LMS_NCO_VAL_COUNT, true) < 0)
{ {
fprintf(stderr, "DeviceLimeSDR::setNCOFrequency: cannot address channel #%lu\n", chan); fprintf(stderr, "DeviceLimeSDR::setNCOFrequency: cannot disable NCO\n");
return false; return false;
} }
if (dir_tx)
{
if (LMS_WriteParam(device, LMS7param(CMIX_BYP_RXTSP), 1) < 0)
{
fprintf(stderr, "DeviceLimeSDR::enableNCO: cannot disable Rx NCO on channel %lu\n", chan);
return false;
}
else
{
return true;
}
}
else
{
if (LMS_WriteParam(device, LMS7param(CMIX_BYP_TXTSP), 1) < 0)
{
fprintf(stderr, "DeviceLimeSDR::enableNCO: cannot disable Tx NCO on channel %lu\n", chan);
return false;
}
else
{
return true;
}
}
} }
} }

6
devices/limesdr/devicelimesdr.h
View File

@ -22,11 +22,7 @@
class DeviceLimeSDR class DeviceLimeSDR
{ {
public: public:
/** enable or disable NCO. If re-enabled frequency should have been set once */ /** set NCO frequency with positive or negative frequency (deals with up/down convert). Enables or disables NCO */
static bool enableNCO(lms_device_t *device, bool dir_tx, std::size_t chan, bool enable);
/** set NCO frequency with positive or negative frequency (deals with up/down convert). Enables NCO */
static bool setNCOFrequency(lms_device_t *device, bool dir_tx, std::size_t chan, float frequency);
/** combination of the two like LMS_SetGFIRLPF */
static bool setNCOFrequency(lms_device_t *device, bool dir_tx, std::size_t chan, bool enable, float frequency); static bool setNCOFrequency(lms_device_t *device, bool dir_tx, std::size_t chan, bool enable, float frequency);
}; };