Mercurial > public > ostc4
view Discovery/Inc/base.h @ 250:822416168585 bm-2
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 | b111fc4250e9 |
line wrap: on
line source
/////////////////////////////////////////////////////////////////////////////// /// -*- coding: UTF-8 -*- /// /// \file Discovery/Inc/base.h /// \brief main(): init hardware and start sub-systems /// \author MCD Application Team /// \date 26-February-2014 /// /// $Id$ /////////////////////////////////////////////////////////////////////////////// /// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh /// /// This program is free software: you can redistribute it and/or modify /// it under the terms of the GNU General Public License as published by /// the Free Software Foundation, either version 3 of the License, or /// (at your option) any later version. /// /// This program is distributed in the hope that it will be useful, /// but WITHOUT ANY WARRANTY; without even the implied warranty of /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the /// GNU General Public License for more details. /// /// You should have received a copy of the GNU General Public License /// along with this program. If not, see <http://www.gnu.org/licenses/>. ////////////////////////////////////////////////////////////////////////////// /// \par COPYRIGHT(c) 2014 STMicroelectronics /// /// Redistribution and use in source and binary forms, with or without modification, /// are permitted provided that the following conditions are met: /// 1. Redistributions of source code must retain the above copyright notice, /// this list of conditions and the following disclaimer. /// 2. Redistributions in binary form must reproduce the above copyright notice, /// this list of conditions and the following disclaimer in the documentation /// and/or other materials provided with the distribution. /// 3. Neither the name of STMicroelectronics nor the names of its contributors /// may be used to endorse or promote products derived from this software /// without specific prior written permission. /// /// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" /// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE /// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE /// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE /// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL /// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR /// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER /// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, /// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE /// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ////////////////////////////////////////////////////////////////////////////// /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef BASE_H #define BASE_H /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx_hal.h" #include "tStructure.h" /* Exported types ------------------------------------------------------------*/ /* Exported constants --------------------------------------------------------*/ /* Exported macro ------------------------------------------------------------*/ #define TOP_LAYER 1 #define BACKGRD_LAYER 0 #define SURFMODE 1 #define DIVEMODE 2 typedef enum { ST_Boot = 0, ST_Surface, ST_Dive, ST_Menu, ST_END } SState; typedef enum { ACTION_IDLE_TICK = 0, ACTION_IDLE_SECOND, ACTION_MODE_CHANGE, ACTION_TIMEOUT, ACTION_BUTTON_CUSTOM, ACTION_BUTTON_BACK, ACTION_BUTTON_NEXT, ACTION_BUTTON_ENTER, ACTION_BUTTON_ENTER_FINAL, ACTION_END } SAction; /* Exported macro ------------------------------------------------------------*/ /* Exported functions ------------------------------------------------------- */ uint32_t get_globalState(void); void set_globalState(uint32_t newID); void get_globalStateList(SStateList *output); void set_globalState_Menu_Page(uint8_t page); void set_globalState_Menu_Line(uint8_t line); void get_idSpecificStateList(uint32_t id, SStateList *output); void delayMicros(uint32_t micros); void get_RTC_DateTime(RTC_DateTypeDef * sdatestructureget, RTC_TimeTypeDef * stimestructureget); void set_RTC_DateTime(RTC_DateTypeDef * sdatestructure, RTC_TimeTypeDef * stimestructure); uint8_t get_globalMode(void); void set_globalMode(uint8_t newMode); void set_globalState_Log_Page(uint8_t pageIsLine); void set_returnFromComm(void); uint8_t font_update_required(void); #endif /* BASE_H */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/