Paparazzi UAS  v5.15_devel-88-gb3ad7fe
Paparazzi is a free software Unmanned Aircraft System.
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pwm_input_arch.h File Reference

handling of smt32 PWM input using a timer with capture. More...

#include "std.h"
+ Include dependency graph for pwm_input_arch.h:

Go to the source code of this file.

Macros

#define PWM_INPUT1_TICKS_PER_USEC   6
 The default pwm counter is set-up to have 1/6 us resolution. More...
 
#define PWM_INPUT2_TICKS_PER_USEC   6
 

Enumerations

enum  pwm_input_channels {
  PWM_INPUT1, PWM_INPUT2, PWM_INPUT_NB, PWM_INPUT1,
  PWM_INPUT2, PWM_INPUT_NB, PWM_INPUT1, PWM_INPUT2,
  PWM_INPUT_NB
}
 

Detailed Description

handling of smt32 PWM input using a timer with capture.

Definition in file pwm_input_arch.h.

Macro Definition Documentation

#define PWM_INPUT1_TICKS_PER_USEC   6

The default pwm counter is set-up to have 1/6 us resolution.

The timer clock frequency (before prescaling): STM32F1: TIM1 -> APB2 = HCLK = 72MHz TIM2 -> 2 * APB1 = 2 * 36MHz = 72MHz STM32F4: TIM1 -> 2 * APB2 = 2 * 84MHz = 168MHz TIM2 -> 2 * APB1 = 2 * 42MHz = 84MHz

Definition at line 53 of file pwm_input_arch.h.

#define PWM_INPUT2_TICKS_PER_USEC   6

Definition at line 57 of file pwm_input_arch.h.

Enumeration Type Documentation

Enumerator
PWM_INPUT1 
PWM_INPUT2 
PWM_INPUT_NB 
PWM_INPUT1 
PWM_INPUT2 
PWM_INPUT_NB 
PWM_INPUT1 
PWM_INPUT2 
PWM_INPUT_NB 

Definition at line 35 of file pwm_input_arch.h.