FreeCalypso > hg > fc-rfcal-tools
diff autocal/vcxomain.c @ 100:7ad5836d3b87
fc-rfcal-vcxo: added check for final freq offset being within 70 Hz
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 11 Aug 2017 02:45:10 +0000 |
| parents | 6e8f2728c7f5 |
| children | 7ad0495991ed |
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--- a/autocal/vcxomain.c Fri Aug 11 02:21:32 2017 +0000 +++ b/autocal/vcxomain.c Fri Aug 11 02:45:10 2017 +0000 @@ -21,7 +21,7 @@ static float freq_max_neg, freq_max_pos; static float lin_a, lin_b, lin_a2, lin_b2; static int zero_search_dac1, zero_search_dac2, zero_search_incr; -static float zero_search_freq1, zero_search_freq2; +static float zero_search_freq1, zero_search_freq2, zero_check_freq; static float dac_min, dac_max, dac_init; static int dac_init_int; static float Psi_sta, Psi_st; @@ -93,12 +93,18 @@ dac_init_int = (int) dac_init; /* check the frequency offset at the final DAC value */ - vcxo_freq_meas(dac_init_int, "zero-check"); + zero_check_freq = vcxo_freq_meas(dac_init_int, "zero-check"); /* done with the measurements and the Tx */ printf("Stopping RF Tx on the DUT\n"); do_rfe(STOP_ALL); + /* sanity check */ + if (zero_check_freq < -70.0f || zero_check_freq > 70.0f) { + printf("Error: final freq offset out of range, aborting\n"); + exit(ERROR_TARGET); + } + /* Psi computations */ Psi_sta = 2.0f * (float)M_PI * lin_a / 270833.0f; Psi_st = Psi_sta * 0.8f;