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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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///////////////////////////////////////////////////////////////////////////////
/// -*- coding: UTF-8 -*-
///
/// \file   Discovery/Inc/ostc_discovery.h
/// \brief  Hardware specific configuration
/// \author heinrichs weikamp gmbh
/// \date   05-Dec-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/>.
//////////////////////////////////////////////////////////////////////////////

#ifndef OSTC_DISCOVERY_H
#define OSTC_DISCOVERY_H

#define DISPLAY_RESETB_PIN			GPIO_PIN_6
#define DISPLAY_RESETB_GPIO_PORT	GPIOF
#define DISPLAY_RESETB_GPIO_ENABLE()__GPIOF_CLK_ENABLE()

#define DISPLAY_CSB_PIN             GPIO_PIN_8
#define DISPLAY_CSB_GPIO_PORT		GPIOC
#define DISPLAY_CSB_GPIO_ENABLE()   __GPIOC_CLK_ENABLE()

#define VSYNC_IRQ_PIN               GPIO_PIN_4
#define VSYNC_IRQ_GPIO_PORT			GPIOD
#define VSYNC_IRQ_GPIO_ENABLE()    __GPIOD_CLK_ENABLE()
#define VSYNC_IRQ_EXTI_IRQn         EXTI4_IRQn

#define BUTTON_ENTER_PIN            GPIO_PIN_0
#define BUTTON_ENTER_GPIO_PORT      GPIOA
#define BUTTON_ENTER_GPIO_ENABLE()  __GPIOA_CLK_ENABLE()
#define BUTTON_ENTER_EXTI_IRQn		EXTI0_IRQn

#define BUTTON_DOWN_PIN				GPIO_PIN_1
#define BUTTON_DOWN_GPIO_PORT		GPIOA
#define BUTTON_DOWN_GPIO_ENABLE()   __GPIOA_CLK_ENABLE()
#define BUTTON_DOWN_EXTI_IRQn       EXTI1_IRQn

#define BUTTON_NEXT_PIN             GPIO_PIN_2
#define BUTTON_NEXT_GPIO_PORT		GPIOA
#define BUTTON_NEXT_GPIO_ENABLE()   __GPIOA_CLK_ENABLE()
#define BUTTON_NEXT_EXTI_IRQn       EXTI2_IRQn

#define BUTTON_BACK_PIN             GPIO_PIN_3
#define BUTTON_BACK_GPIO_PORT       GPIOC
#define BUTTON_BACK_GPIO_ENABLE()   __GPIOC_CLK_ENABLE()
#define BUTTON_BACK_EXTI_IRQn       EXTI3_IRQn

#define EXTFLASH_CSB_PIN            GPIO_PIN_1
#define EXTFLASH_CSB_GPIO_PORT		GPIOC
#define EXTFLASH_CSB_GPIO_ENABLE()  __GPIOC_CLK_ENABLE()

#define OSCILLOSCOPE_PIN			GPIO_PIN_14
#define OSCILLOSCOPE_GPIO_PORT		GPIOG
#define OSCILLOSCOPE_GPIO_ENABLE()  __GPIOG_CLK_ENABLE()

#define OSCILLOSCOPE2_PIN			GPIO_PIN_13
#define OSCILLOSCOPE2_GPIO_PORT		GPIOG
#define OSCILLOSCOPE2_GPIO_ENABLE() __GPIOG_CLK_ENABLE()

#define USARTx                      USART1
#define USARTx_CLK_ENABLE()         __USART1_CLK_ENABLE();
#define USARTx_FORCE_RESET()        __USART1_FORCE_RESET()
#define USARTx_RELEASE_RESET()      __USART1_RELEASE_RESET()

#define USARTx_RX_AF                GPIO_AF7_USART1
#define USARTx_RX_PIN               GPIO_PIN_10
#define USARTx_RX_GPIO_PORT         GPIOA
#define USARTx_RX_GPIO_CLK_ENABLE() __GPIOA_CLK_ENABLE()

#define USARTx_TX_AF                GPIO_AF7_USART1
#define USARTx_TX_PIN               GPIO_PIN_9
#define USARTx_TX_GPIO_PORT         GPIOA
#define USARTx_TX_GPIO_CLK_ENABLE() __GPIOA_CLK_ENABLE()
#define USARTx_IRQn                 USART1_IRQn
#define USARTx_IRQHandler           USART1_IRQHandler

#define TIMx                        TIM3
#define TIMx_CLK_ENABLE             __TIM3_CLK_ENABLE
#define TIMx_IRQn                   TIM3_IRQn
#define TIMx_IRQHandler             TIM3_IRQHandler

#define SMALLCPU_CSB_PIN			GPIO_PIN_15
#define SMALLCPU_CSB_GPIO_PORT		GPIOA
#define SMALLCPU_CSB_GPIO_ENABLE()  __GPIOA_CLK_ENABLE()

#endif // OSTC_DISCOVERY_H