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view Small_CPU/Src/adc.c @ 173:05c770dc2911 max-depth
Bugfix: make max depth move with current depth (part 1)
The display in dive mode of the max depth was updated before the actual
depth, which looks very strange. The reason for this was conceptually
simple. The depth value was averaged over a set of depth samples, but
the current depth was only taken from the current sample. So, per
definition, on an initial descend, the current depth is always bigger
(deeper) than any average from previous shallower samples.
This part 1 commit introduces a new function that is used immediate
after reception of the new sample from the RTE. This function does the
trivial average of a set of samples. Notice that also the surface and
ambient mbar pressures are taken into account (which are used heavily
over the entire code). This is a consistency thing. We should base any
further calculation from the data presented in the UI, instead of
presenting A, and use A' for further calculations.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author | Jan Mulder <jlmulder@xs4all.nl> |
---|---|
date | Mon, 11 Mar 2019 19:48:57 +0100 |
parents | 5f11787b4f42 |
children |
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/** ****************************************************************************** * @file adc.c * @author heinrichs weikamp gmbh * @version V0.0.1 * @date 11-Dec-2014 * @brief ADC for ambient light sensor * @verbatim ============================================================================== ##### How to use ##### ============================================================================== @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2014 heinrichs weikamp</center></h2> * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx_hal.h" #include "adc.h" /* Exported variables --------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ ADC_HandleTypeDef AdcHandle; __IO uint16_t uhADCxConvertedValue = 0; /* Private types -------------------------------------------------------------*/ #define ADCx ADC1 #define ADCx_CLK_ENABLE() __ADC1_CLK_ENABLE(); #define ADCx_CHANNEL_GPIO_CLK_ENABLE() __GPIOF_CLK_ENABLE() #define ADCx_FORCE_RESET() __ADC_FORCE_RESET() #define ADCx_RELEASE_RESET() __ADC_RELEASE_RESET() /* Definition for ADCx Channel Pin */ #define ADCx_GPIO_PIN GPIO_PIN_0 #define ADCx_GPIO_PORT GPIOB #define ADCx_GPIO_CLK_ENABLE() __GPIOB_CLK_ENABLE() #define ADCx_GPIO_CLK_DISABLE() __GPIOB_CLK_DISABLE() /* Definition for ADCx's Channel */ #define ADCx_CHANNEL ADC_CHANNEL_8 /* Definition for ADCx's NVIC */ //#define ADCx_IRQn ADC_IRQn /* Private function prototypes -----------------------------------------------*/ void ADC_Start_single_IT_Conversion(void); /* Exported functions --------------------------------------------------------*/ uint16_t get_ambient_light_level(void) { #ifdef OSTC_ON_DISCOVERY_HARDWARE return 800; #endif return uhADCxConvertedValue; } static void ADCx_MspInit(ADC_HandleTypeDef *hadc) { #ifdef OSTC_ON_DISCOVERY_HARDWARE return; #endif GPIO_InitTypeDef GPIO_InitStruct; ADCx_GPIO_CLK_ENABLE(); GPIO_InitStruct.Pin = ADCx_GPIO_PIN ; GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(ADCx_GPIO_PORT, &GPIO_InitStruct); ADCx_CLK_ENABLE(); // HAL_NVIC_SetPriority(ADCx_IRQn, 2, 0); // HAL_NVIC_EnableIRQ(ADCx_IRQn); } void ADCx_DeInit(void) { // HAL_ADC_Stop_IT(&AdcHandle); HAL_ADC_DeInit(&AdcHandle); } void ADCx_Init(void) { #ifdef OSTC_ON_DISCOVERY_HARDWARE return; #endif ADC_ChannelConfTypeDef sConfig; AdcHandle.Instance = ADCx; AdcHandle.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV4; AdcHandle.Init.Resolution = ADC_RESOLUTION12b; AdcHandle.Init.DataAlign = ADC_DATAALIGN_RIGHT; AdcHandle.Init.ContinuousConvMode = DISABLE; AdcHandle.Init.DiscontinuousConvMode = DISABLE; AdcHandle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE; AdcHandle.Init.EOCSelection = EOC_SINGLE_CONV; AdcHandle.Init.NbrOfConversion = 1; AdcHandle.Init.DMAContinuousRequests = DISABLE; ADCx_MspInit(&AdcHandle); HAL_ADC_Init(&AdcHandle); sConfig.Channel = ADCx_CHANNEL; sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES; sConfig.Rank = 1; sConfig.Offset = 0; HAL_ADC_ConfigChannel(&AdcHandle, &sConfig); // ADC_Start_single_IT_Conversion(); } uint32_t adc_debug_status = 0; void adc_ambient_light_sensor_get_data(void) { #ifdef OSTC_ON_DISCOVERY_HARDWARE return; #endif HAL_ADC_Start(&AdcHandle); HAL_ADC_PollForConversion(&AdcHandle, 10); adc_debug_status = HAL_ADC_GetState(&AdcHandle); if(adc_debug_status == HAL_ADC_STATE_EOC_REG + HAL_ADC_STATE_READY) // new HAL_ADC_STATE_READY 160613 // if(HAL_ADC_GetState(&AdcHandle) == HAL_ADC_STATE_EOC_REG) uhADCxConvertedValue = HAL_ADC_GetValue(&AdcHandle); HAL_ADC_Stop(&AdcHandle); } /* Private functions ---------------------------------------------------------*/ /* void ADC_Start_single_IT_Conversion(void) { HAL_ADC_Start_IT(&AdcHandle); } void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* AdcHandle) { extern void copyAmbientLightData(void); uhADCxConvertedValue = HAL_ADC_GetValue(AdcHandle); copyAmbientLightData(); ADC_Start_single_IT_Conversion(); } */ /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/