--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Small_CPU/Src/adc.c	Sat Apr 28 11:52:34 2018 +0200
@@ -0,0 +1,166 @@
+/**
+  ******************************************************************************
+  * @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>&copy; 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****/