Mercurial > public > ostc4
view Discovery/Src/stm32f4xx_it.c @ 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 |
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/////////////////////////////////////////////////////////////////////////////// /// -*- coding: UTF-8 -*- /// /// \file Discovery/Src/stm32f4xx_it.c /// \brief This function handles System tick timer and all interupt vectors. /// \author Heinrichs Weikamp gmbh /// \date 18/03/2015 15:35:40 /// /// \details /// /// $Id$ /////////////////////////////////////////////////////////////////////////////// /// \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) COPYRIGHT(c) 2015 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. ////////////////////////////////////////////////////////////////////////////// /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx_hal.h" #include "stm32f4xx.h" #include "stm32f4xx_it.h" /* USER CODE BEGIN 0 */ #include "ostc.h" #ifdef DEMOMODE # include "demo.h" extern TIM_HandleTypeDef TimDemoHandle; #endif extern DMA2D_HandleTypeDef Dma2dHandle; extern TIM_HandleTypeDef TimHandle; /* USER CODE END 0 */ /* External variables --------------------------------------------------------*/ /******************************************************************************/ /* Cortex-M4 Processor Interruption and Exception Handlers */ /******************************************************************************/ /** * @brief This function handles System tick timer. */ void SysTick_Handler(void) { /* USER CODE BEGIN SysTick_IRQn 0 */ /* USER CODE END SysTick_IRQn 0 */ HAL_IncTick(); HAL_SYSTICK_IRQHandler(); /* USER CODE BEGIN SysTick_IRQn 1 */ /* USER CODE END SysTick_IRQn 1 */ } /* USER CODE BEGIN 1 */ void DMA2D_IRQHandler(void) { HAL_DMA2D_IRQHandler(&Dma2dHandle); } void DMA2_Stream0_IRQHandler(void) { HAL_DMA_IRQHandler(cpu2DmaSpi.hdmarx); } void DMA2_Stream3_IRQHandler(void) { HAL_DMA_IRQHandler(cpu2DmaSpi.hdmatx); } void EXTI0_IRQHandler(void) { HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_0); } void EXTI1_IRQHandler(void) { HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_1); } void EXTI2_IRQHandler(void) { HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_2); } void EXTI3_IRQHandler(void) { HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_3); } void EXTI4_IRQHandler(void) { HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_4); } void USART1_IRQHandler(void) { HAL_UART_IRQHandler(&UartHandle); } #ifdef USART_IR_HUD void USART2_IRQHandler(void) { HAL_UART_IRQHandler(&UartIR_HUD_Handle); } #endif void TIM4_IRQHandler(void) { MX_TestPin_Low(); HAL_TIM_IRQHandler(&TimHandle); MX_TestPin_High(); } #ifdef DEMOMODE void TIM7_IRQHandler(void) { HAL_TIM_IRQHandler(&TimDemoHandle); } #endif