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view Small_CPU/Inc/rtc.h @ 250:822416168585 bm-2

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Buelmann: new implementation for ceiling Since my first functional fix in the ceiling computation in commit ceecabfddb57, I noticed that the computation used a linear search, that became rather computational expensive after that commit. The simple question is: why not a binary search? So, this commit implements the binary search. But there is a long story attached to this. Comparing ceiling results from hwOS and this OSTC4 code were very different. Basically, the original OSTC4 algorithm computed the ceiling using the same GFlow to GFhigh slope, in such a way, that the ceiling was in sync with the presented deco stops, where the hwOS code presents a GFhigh based ceiling. This said, it is more logical when the OSTC4 and hwOS code give similar results. This new recursive algorithm gives very similar results for the ceiling compared to hwOS. To be complete here, the Buelmann ceiling is the depth to which you can ascend, so that the leading tissue reaches GFhigh. This also explains why the deepest deco stop is normally deeper than the ceiling (unless one dives with GF like 80/80). The code implemented here is rather straightforward recursion. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Thu, 11 Apr 2019 17:48:48 +0200
parents 5f11787b4f42
children
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/**
  ******************************************************************************
  * @file    rtc.h
  * @author  heinrichs weikamp gmbh
  * @version V0.0.1
  * @date    10-Oct-2014
  * @brief   header file for rtc control
  *           
  @verbatim                 
  ============================================================================== 
                        ##### How to use #####
  ============================================================================== 
  @endverbatim
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>
  *
  ******************************************************************************
  */ 

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef RTC_H
#define RTC_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/

#define RTC_ASYNCH_PREDIV  0x7F   /* LSE as RTC clock */
#define RTC_SYNCH_PREDIV   0x00FF /* LSE as RTC clock */

#include "stm32f4xx_hal.h"
	 
void MX_RTC_init(void);
void RTC_StopMode_2seconds(void);
void RTC_Stop_11ms(void);
void RTC_SetTime(RTC_TimeTypeDef stimestructure);
void RTC_SetDate(RTC_DateTypeDef sdatestructure);

#ifdef __cplusplus
}
#endif

#endif /* RTC_H */

/************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/