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[apogee] change ppm input frequency

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Since the timer used is only 16 bits, this setting (2 ticks per us)
provides a max period of 32 ms between 2 edges and 2000 steps for
reading PPM input on regular RC.
Standard period on Futaba RC is 22 ms.
This commit is contained in:
Gautier Hattenberger
2016-07-15 00:32:03 +02:00
parent b1fd5055b6
commit d1969c8134
1 changed files with 2 additions and 2 deletions
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sw/airborne/boards/apogee/chibios/v1.0/board.h
+2 -2
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@@ -912,8 +912,8 @@
/**
* PPM radio defines
*/
#define RC_PPM_TICKS_PER_USEC 6
#define PPM_TIMER_FREQUENCY 6000000
#define RC_PPM_TICKS_PER_USEC 2
#define PPM_TIMER_FREQUENCY 2000000
#define PPM_CHANNEL ICU_CHANNEL_1
#define PPM_TIMER ICUD1