FlapJackApps/libdivecomputer
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Wait after changing the serial line settings.

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Without the delay, the communication immediately fails. We receive the
command echo, but not the actual data packet. I suspect the device is
still be busy with the initialization and needs a bit more time before
it's ready to accept a request.
This commit is contained in:
Jef Driesen 2015-03-19 20:17:31 +01:00
parent c4cbd19d5b
commit edd777dbd3
1 changed files with 8 additions and 0 deletions
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8
src/cressi_edy.c
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@ -239,6 +239,10 @@ cressi_edy_device_open (dc_device_t **out, dc_context_t *context, const char *na
return DC_STATUS_IO;
}
// Make sure everything is in a sane state.
serial_sleep(device->port, 300);
serial_flush(device->port, SERIAL_QUEUE_BOTH);
// Send the init commands.
cressi_edy_init1 (device);
cressi_edy_init2 (device);
@ -253,6 +257,10 @@ cressi_edy_device_open (dc_device_t **out, dc_context_t *context, const char *na
return DC_STATUS_IO;
}
// Make sure everything is in a sane state.
serial_sleep(device->port, 300);
serial_flush(device->port, SERIAL_QUEUE_BOTH);
*out = (dc_device_t*) device;
return DC_STATUS_SUCCESS;