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Merge pull request #606 from PX4/sbus2

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Sbus2
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Lorenz Meier
2014-01-24 08:56:26 -08:00
parent d8c1131f1e 8bdbce5fe2
commit 8f67307aed
1 changed files with 24 additions and 2 deletions
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src/modules/px4iofirmware/sbus.c
+24 -2
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@@ -1,6 +1,6 @@
/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
* Copyright (c) 2012-2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -218,11 +218,33 @@ static bool
sbus_decode(hrt_abstime frame_time, uint16_t *values, uint16_t *num_values, uint16_t *rssi, uint16_t max_values)
{
/* check frame boundary markers to avoid out-of-sync cases */
if ((frame[0] != 0x0f) || (frame[24] != 0x00)) {
if ((frame[0] != 0x0f)) {
sbus_frame_drops++;
return false;
}
switch (frame[24]) {
case 0x00:
/* this is S.BUS 1 */
break;
case 0x03:
/* S.BUS 2 SLOT0: RX battery and external voltage */
break;
case 0x83:
/* S.BUS 2 SLOT1 */
break;
case 0x43:
case 0xC3:
case 0x23:
case 0xA3:
case 0x63:
case 0xE3:
break;
default:
/* we expect one of the bits above, but there are some we don't know yet */
break;
}
/* we have received something we think is a frame */
last_frame_time = frame_time;