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Adjust PPM input timing to deal with FrSky's fairly sloppy CPPM implementation

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px4dev
2012-08-27 21:19:27 -07:00
parent e6f6a81d5b
commit 0bc9cfd0f9
2 changed files with 6 additions and 6 deletions
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nuttx/configs/px4fmu/src/up_hrt.c
+3 -3
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@@ -314,9 +314,9 @@ static void hrt_call_invoke(void);
* PPM decoder tuning parameters * PPM decoder tuning parameters
*/ */
# define PPM_MAX_PULSE_WIDTH 500 /* maximum width of a pulse */ # define PPM_MAX_PULSE_WIDTH 500 /* maximum width of a pulse */
# define PPM_MIN_CHANNEL_VALUE 750 /* shortest valid channel signal */ # define PPM_MIN_CHANNEL_VALUE 800 /* shortest valid channel signal */
# define PPM_MAX_CHANNEL_VALUE 2400 /* longest valid channel signal */ # define PPM_MAX_CHANNEL_VALUE 2200 /* longest valid channel signal */
# define PPM_MIN_START 5000 /* shortest valid start gap */ # define PPM_MIN_START 2500 /* shortest valid start gap */
/* decoded PPM buffer */ /* decoded PPM buffer */
#define PPM_MAX_CHANNELS 12 #define PPM_MAX_CHANNELS 12
nuttx/configs/px4io/src/drv_ppm_input.c
+3 -3
View File
@@ -96,9 +96,9 @@
* values are advertised to clients. * values are advertised to clients.
*/ */
#define PPM_MAX_PULSE_WIDTH 500 /* maximum width of a pulse */ #define PPM_MAX_PULSE_WIDTH 500 /* maximum width of a pulse */
#define PPM_MIN_CHANNEL_VALUE 750 /* shortest valid channel signal */ #define PPM_MIN_CHANNEL_VALUE 800 /* shortest valid channel signal */
#define PPM_MAX_CHANNEL_VALUE 2400 /* longest valid channel signal */ #define PPM_MAX_CHANNEL_VALUE 2200 /* longest valid channel signal */
#define PPM_MIN_START 5000 /* shortest valid start gap */ #define PPM_MIN_START 2500 /* shortest valid start gap */
/* Input timeout - after this interval we assume signal is lost */ /* Input timeout - after this interval we assume signal is lost */
#define PPM_INPUT_TIMEOUT 100 * 1000 /* 100ms */ #define PPM_INPUT_TIMEOUT 100 * 1000 /* 100ms */