servos_ppm_hw.c File Reference

Efficient driving of MAT0.1 (SERVO_CLOCK_PIN) using TIMER0 to produce PPM for a R/C receiver which has a microcontroller to drive the servos (not a 4015 or 4017 decade counter chip). More...

#include "subsystems/actuators.h"
#include "paparazzi.h"
#include "generated/airframe.h"

Include dependency graph for servos_ppm_hw.c:

Go to the source code of this file.

Macros
#define	START_TIMEOUT   0xFFFF;

Functions
void	actuators_ppm_init (void)

Variables
uint8_t	servos_PPM_idx
uint8_t	ppm_pulse
uint32_t	servos_delay
uint16_t	servos_values [_PPM_NB_CHANNELS]

Detailed Description

Efficient driving of MAT0.1 (SERVO_CLOCK_PIN) using TIMER0 to produce PPM for a R/C receiver which has a microcontroller to drive the servos (not a 4015 or 4017 decade counter chip).

Definition in file servos_ppm_hw.c.

Macro Definition Documentation

#define START_TIMEOUT   0xFFFF;

Definition at line 39 of file servos_ppm_hw.c.

Referenced by actuators_ppm_init().

Function Documentation

void actuators_ppm_init

(

void

)

Definition at line 41 of file servos_ppm_hw.c.

References _PPM_NB_CHANNELS, SERVO_CLOCK_PINSEL, SERVO_CLOCK_PINSEL_BIT, SERVO_CLOCK_PINSEL_VAL, SERVO_REFRESH_TICS, servos_delay, servos_PPM_idx, SERVOS_TICS_OF_USEC, servos_values, START_TIMEOUT, T0EMR, T0MCR, T0MR1, TEMR_EM1, TEMR_EMC1_2, and TMCR_MR1_I.

Variable Documentation

uint8_t ppm_pulse

Definition at line 36 of file servos_ppm_hw.c.

uint32_t servos_delay

Definition at line 37 of file servos_ppm_hw.c.

Referenced by actuators_ppm_init().

uint8_t servos_PPM_idx

Definition at line 35 of file servos_ppm_hw.c.

Referenced by actuators_ppm_init().

uint16_t servos_values[_PPM_NB_CHANNELS]

Definition at line 66 of file servos_ppm_hw.c.

Referenced by actuators_ppm_init().