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HAL_PX4: don't check USB for data if not connected

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Andrew Tridgell 2013-11-05 14:41:42 +11:00 committed by Randy Mackay
parent 9f36acbb92
commit 97d8007b08
1 changed files with 5 additions and 0 deletions
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5
libraries/AP_HAL_PX4/UARTDriver.cpp
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@ -418,6 +418,11 @@ void PX4UARTDriver::_timer_tick(void)
if (!_initialised) return; if (!_initialised) return;
// don't try IO on a disconnected USB port
if (strcmp(_devpath, "/dev/ttyACM0") == 0 && !hal.gpio->usb_connected()) {
return;
}
_in_timer = true; _in_timer = true;
// write any pending bytes // write any pending bytes