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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 d461d9e89e3c
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/**
  ******************************************************************************
  * @file    GPIO/GPIO_IOToggle/Inc/main.h 
  * @author  MCD Application Team
  * @version V1.1.0
  * @date    26-June-2014
  * @brief   Header for main.c module
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
  *
  * 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_CPU2_H
#define BASE_CPU2_H

//#define DEBUGMODE

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"
#include "settings.h"

/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/

//new
uint8_t firmwareVersionHigh(void);
uint8_t firmwareVersionLow(void);

/* Definition for I2Cx clock resources */
#define I2Cx                             I2C1
#define I2Cx_CLK_ENABLE()                __I2C1_CLK_ENABLE()
#define I2Cx_SDA_GPIO_CLK_ENABLE()       __GPIOB_CLK_ENABLE()
#define I2Cx_SCL_GPIO_CLK_ENABLE()       __GPIOB_CLK_ENABLE() 

#define I2Cx_FORCE_RESET()               __I2C1_FORCE_RESET()
#define I2Cx_RELEASE_RESET()             __I2C1_RELEASE_RESET()

/* Definition for I2Cx Pins */
#define I2Cx_SCL_PIN                    GPIO_PIN_8
#define I2Cx_SCL_GPIO_PORT              GPIOB
#define I2Cx_SCL_AF                     GPIO_AF4_I2C1
#define I2Cx_SDA_PIN                    GPIO_PIN_9
#define I2Cx_SDA_GPIO_PORT              GPIOB
#define I2Cx_SDA_AF                     GPIO_AF4_I2C1

/* Definition for I2Cx's NVIC */
#define I2Cx_EV_IRQn                    I2C1_EV_IRQn
#define I2Cx_EV_IRQHandler              I2C1_EV_IRQHandler
#define I2Cx_ER_IRQn                    I2C1_ER_IRQn
#define I2Cx_ER_IRQHandler              I2C1_ER_IRQHandler

/* Size of Transmission buffer */
//#define TXBUFFERSIZE                      (COUNTOF(aTxBuffer) - 1)
/* Size of Reception buffer */
//#define RXBUFFERSIZE                      TXBUFFERSIZE
  
/* Exported macro ------------------------------------------------------------*/
//#define COUNTOF(__BUFFER__)   (sizeof(__BUFFER__) / sizeof(*(__BUFFER__)))

/* Exported functions ------------------------------------------------------- */
void SYSCLKConfig_STOP(void);
//void SystemClock_Config(void); in baseCPU2.c only

void HAL_I2C_ManualControl_MspInit(void);

#endif /* BASE_CPU2_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/