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| author | jaseg <git-bigdata-wsl-arch@jaseg.de> | 2020-03-16 19:19:34 +0100 |
|---|---|---|
| committer | jaseg <git-bigdata-wsl-arch@jaseg.de> | 2020-03-16 19:19:34 +0100 |
| commit | a1dc923315514ed6f23da5f2c0950830975299f8 (patch) | |
| tree | 9954004d0517c73b57a2021213a91975b7779931 /controller/fw/src/freq_meas.c | |
| parent | fed186a49fc8f27a8a31fd40f8c8b26d32a4b932 (diff) | |
| download | master-thesis-a1dc923315514ed6f23da5f2c0950830975299f8.tar.gz master-thesis-a1dc923315514ed6f23da5f2c0950830975299f8.tar.bz2 master-thesis-a1dc923315514ed6f23da5f2c0950830975299f8.zip | |
Fix serial
Diffstat (limited to 'controller/fw/src/freq_meas.c')
| -rw-r--r-- | controller/fw/src/freq_meas.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/controller/fw/src/freq_meas.c b/controller/fw/src/freq_meas.c index 020e12d..6b9b54e 100644 --- a/controller/fw/src/freq_meas.c +++ b/controller/fw/src/freq_meas.c @@ -136,7 +136,13 @@ int adc_buf_measure_freq(uint16_t adc_buf[FMEAS_FFT_LEN], float *out) { DEBUG_PRINT("done."); */ - *out = (par[1] + first_bin) * binsize_hz; + float res = (par[1] + first_bin) * binsize_hz; + if (res < 5 || res > 150) { + *out = NAN; + return -1; + } + + *out = res; return 0; } |