diff options
| author | Andreas Eversberg <jolly@eversberg.eu> | 2017-02-01 17:57:09 +0100 |
|---|---|---|
| committer | Andreas Eversberg <jolly@eversberg.eu> | 2017-02-18 21:02:46 +0100 |
| commit | 5f1d7bc9705cf31f55cd802ba616f42a92da3618 (patch) | |
| tree | f7499635b3dc9f5e4119b3991d757ed87554922b /src/cnetz/cnetz.h | |
| parent | 54ed5d5f822f64a12cdc06abfaddf4cb18bfa560 (diff) | |
C-Netz: Improve clock speed measurements.
Sound card's clock measurements only requires a few minutes to get sub-ppm
accuracy results.
Diffstat (limited to 'src/cnetz/cnetz.h')
| -rw-r--r-- | src/cnetz/cnetz.h | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/src/cnetz/cnetz.h b/src/cnetz/cnetz.h index 01fcc9c..b5295fe 100644 --- a/src/cnetz/cnetz.h +++ b/src/cnetz/cnetz.h @@ -50,12 +50,11 @@ struct clock_speed { double meas_ti; /* time stamp for measurement interval */ double start_ti[4]; /* time stamp for start of counting */ double last_ti[4]; /* time stamp of last received time */ - uint64_t spl_count[4]; /* sample counter for sound card */ + double spl_count[4]; /* sample counter for sound card */ /* making average of measurement values */ - double speed_ppm_rx[2][256]; /* history of clock speed measurements */ - double speed_ppm_tx[2][256]; - int idx; /* index of current value */ - int num; /* total num of values so far */ + double speed_ppm[4][256]; /* history of clock speed measurements */ + int idx[4]; /* index of current value */ + int num[4]; /* total num of values so far */ }; /* instance of cnetz sender */ |