I am using the legacy api on a 64-bit bookworm install connected by USB to a LimeSDR Mini to generate a stream that is put into an fft and displayed. The basic code is the same as a legacy limesuite application that I have been using for 3 years.
When I call LMS_Calibrate at with low bandwidths and high over-sampling rates I get the error message
SetNCOFrequency(index = 0) - Frequency(-0.05904 MHz) out of range [0-11.52) MHz
SetNCOFrequency(index = 0) - Frequency(-0.05904 MHz) out of range [0-11.52) MHz
Here is a snippet of output with a higher bandwidth:
Change of Sample rate to 512000.0 requested
Stopping stream: LMS_StopStream(&rx_stream)
Amend the bandwidth: LMS_SetLPFBW(device, LMS_CH_RX, 0, 614400.0)
Amend sample rate: LMS_SetSampleRate(device, 512000.0, 8)
Check sample rates: LMS_GetSampleRate(device, LMS_CH_RX, 0, &sr_host, &sr_rf)
sr_host = 512000.0
sr_rf = 4096000.0
Destroy old stream: LMS_DestroyStream(device, &rx_stream)
Set up the new stream: LMS_SetupStream(device, &rx_stream)
Restart the stream: LMS_StartStream(&rx_stream)
Calibrate again: LMS_Calibrate(device, LMS_CH_RX, 0, 512000.0, 0)
and here is the same snippet, but with a lower bandwidth and higher over-sampling rate:
Change of Sample rate to 204800.0 requested
Stopping stream: LMS_StopStream(&rx_stream)
Amend the bandwidth: LMS_SetLPFBW(device, LMS_CH_RX, 0, 245760.0)
Amend sample rate: LMS_SetSampleRate(device, 204800.0, 16)
Check sample rates: LMS_GetSampleRate(device, LMS_CH_RX, 0, &sr_host, &sr_rf)
sr_host = 204800.0
sr_rf = 3276800.0
Destroy old stream: LMS_DestroyStream(device, &rx_stream)
Set up the new stream: LMS_SetupStream(device, &rx_stream)
Restart the stream: LMS_StartStream(&rx_stream)
Calibrate again: LMS_Calibrate(device, LMS_CH_RX, 0, 204800.0, 0)
SetNCOFrequency(index = 0) - Frequency(-0.05904 MHz) out of range [0-11.52) MHz
SetNCOFrequency(index = 0) - Frequency(-0.05904 MHz) out of range [0-11.52) MHz
The behaviour is the same with a LimeSDR Mini V1 and V2. The performance seems to be OK, but the warning message clearly indicates something not right.
davecrump
commented
2 weeks ago
I am using the legacy api on a 64-bit bookworm install connected by USB to a LimeSDR Mini to generate a stream that is put into an fft and displayed. The basic code is the same as a legacy limesuite application that I have been using for 3 years.
When I call LMS_Calibrate at with low bandwidths and high over-sampling rates I get the error message
Here is a snippet of output with a higher bandwidth:
and here is the same snippet, but with a lower bandwidth and higher over-sampling rate:
The behaviour is the same with a LimeSDR Mini V1 and V2. The performance seems to be OK, but the warning message clearly indicates something not right.
Thanks, Dave