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| author | Andrew Tridgell <tridge@samba.org> | 2013-08-27 18:07:31 +1000 |
|---|---|---|
| committer | Lorenz Meier <lm@inf.ethz.ch> | 2013-08-27 10:15:34 +0200 |
| commit | 9c58d2c5c6ef96f9ece7f62d5f02d01d8b1e316e (patch) | |
| tree | 9d80f4be57a8d8670a04b19b5ce1c4eefc52ae16 /src/drivers/airspeed | |
| parent | 11257cbade5d89d3d2de8101daec11d32f7f74ce (diff) | |
| download | px4-firmware-9c58d2c5c6ef96f9ece7f62d5f02d01d8b1e316e.tar.gz px4-firmware-9c58d2c5c6ef96f9ece7f62d5f02d01d8b1e316e.tar.bz2 px4-firmware-9c58d2c5c6ef96f9ece7f62d5f02d01d8b1e316e.zip | |
airspeed: retry initial I2C probe 4 times
this fixes a problem with detecting a MS4525D0 at boot
Diffstat (limited to 'src/drivers/airspeed')
| -rw-r--r-- | src/drivers/airspeed/airspeed.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/drivers/airspeed/airspeed.cpp b/src/drivers/airspeed/airspeed.cpp index 5a8157deb..277d8249a 100644 --- a/src/drivers/airspeed/airspeed.cpp +++ b/src/drivers/airspeed/airspeed.cpp @@ -146,7 +146,14 @@ out: int Airspeed::probe() { - return measure(); + /* on initial power up the device needs more than one retry + for detection. Once it is running then retries aren't + needed + */ + _retries = 4; + int ret = measure(); + _retries = 0; + return ret; } int |