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

Implementation of system time functions for ChibiOS arch. More...

#include "mcu_periph/sys_time.h"
#include <ch.h>
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Functions

uint32_t get_sys_time_usec (void)
 Get the time in microseconds since startup. More...
 
uint32_t get_sys_time_msec (void)
 Get the time in milliseconds since startup. More...
 
void sys_time_usleep (uint32_t us)
 sys_time_usleep(uint32_t us) More...
 
void sys_time_msleep (uint16_t ms)
 
void sys_time_ssleep (uint8_t s)
 

Detailed Description

Implementation of system time functions for ChibiOS arch.

Mostly empty functions for Paparazzi compatibility, since ChibiOS uses different system time functions.

Definition in file sys_time_arch.h.

Function Documentation

uint32_t get_sys_time_msec ( void  )

Get the time in milliseconds since startup.

Returns
milliseconds since startup as uint32_t

Definition at line 78 of file sys_time_arch.c.

uint32_t get_sys_time_usec ( void  )

Get the time in microseconds since startup.

WARNING: overflows after 70min!

Returns
microseconds since startup as uint32_t

WARNING: overflows after 71min34seconds!

Returns
current system time as uint32_t

Definition at line 68 of file sys_time_arch.c.

void sys_time_msleep ( uint16_t  ms)

Definition at line 108 of file sys_time_arch.c.

References CH_CFG_ST_FREQUENCY.

void sys_time_ssleep ( uint8_t  s)

Definition at line 114 of file sys_time_arch.c.

void sys_time_usleep ( uint32_t  us)

sys_time_usleep(uint32_t us)

using intermediate 64 bits variable to avoid wrapping

max sleep time is around 10 days (2^32 / CH_CFG_ST_FREQUENCY) at 10kHz

Definition at line 95 of file sys_time_arch.c.

References CH_CFG_ST_FREQUENCY.

Referenced by cyrf6936_init(), main(), pcap01_init(), px4flash_event(), received_spektrum_soft_bind(), send_spektrum_bind(), spektrum_bind(), spektrum_try_bind(), VCOM_putchar(), video_thread_function(), w5100_init(), and xbee_dl_init().

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