![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
a
Dependencies: mbed
Fork of GIMBAL_SAMPLE4_PPM by
PPM/PPMOut.h
- Committer:
- halusis
- Date:
- 2018-05-25
- Revision:
- 1:dd6e70abeb8e
- Parent:
- 0:f0b20f502059
File content as of revision 1:dd6e70abeb8e:
#ifndef CH_PPM_OUT #define CH_PPM_OUT class PpmOut{ public: static const uint8_t MAX_CHANNELS = 8; static const uint16_t CHANNEL_SYNC = 300; // us static const uint16_t CHANNEL_PAD_SYNC = 1000 - CHANNEL_SYNC; // us static const uint16_t FRAME_SYNC = 5000; // us static const uint16_t FRAME_LEN = 20000; // us static const uint16_t MAX_CHANNEL_VALUE = 1980; // us static const uint16_t MIN_CHANNEL_VALUE = 1020; static const uint16_t DOTS = MAX_CHANNELS*2+2; // two dots per channel + FRAME_SYNC /* Will start the PPM output */ PpmOut(PinName pin, uint8_t channel_number); /* Values go from MIN_CHANNEL_VALUE to MAX_CHANNEL_VALUE */ void setChannel(int channel_no, uint16_t value); private: /* These are the time dots where the signal changes the value from 0 to 1 and in reverse */ uint16_t dots[DOTS]; Timeout timeout; DigitalOut ppm; uint8_t current_dot; uint8_t channel_number; uint16_t frame_length; uint16_t pulse_out; void attimeout(); inline void resetChannels(); inline void setFrameSync(); }; #endif // CH_PPM_OUT