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It looks like retrying reads from the ms5611 is not safe either.

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px4dev
2013-01-26 20:23:19 -08:00
parent 6d0363faff
commit 636e0cc56a
1 changed files with 1 additions and 8 deletions
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apps/drivers/ms5611/ms5611.cpp
+1 -8
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@@ -332,8 +332,7 @@ MS5611::probe()
if ((OK == probe_address(MS5611_ADDRESS_1)) ||
(OK == probe_address(MS5611_ADDRESS_2))) {
/*
* Disable retries; we may enable them selectively in some cases,
* but the device gets confused if we retry some of the commands.
* Disable retries; the device gets confused if we retry some of the commands.
*/
_retries = 0;
return OK;
@@ -654,11 +653,7 @@ MS5611::measure()
/*
* Send the command to begin measuring.
*
* Disable retries on this command; we can't know whether failure
* means the device did or did not see the write.
*/
_retries = 0;
ret = transfer(&cmd_data, 1, nullptr, 0);
if (OK != ret)
@@ -686,8 +681,6 @@ MS5611::collect()
/* this should be fairly close to the end of the conversion, so the best approximation of the time */
_reports[_next_report].timestamp = hrt_absolute_time();
/* it's OK to retry on collection, as it has no side-effects */
_retries = 3;
ret = transfer(&cmd, 1, &data[0], 3);
if (ret != OK) {
perf_count(_comms_errors);