/** **************************************************************************************** * * @file adc.h * * @brief ADC module header file. * * Copyright (C) 2012. Dialog Semiconductor Ltd, unpublished work. This computer * program includes Confidential, Proprietary Information and is a Trade Secret of * Dialog Semiconductor Ltd. All use, disclosure, and/or reproduction is prohibited * unless authorized in writing. All Rights Reserved. * * and contributors. * **************************************************************************************** */ #ifndef _ADC_H_ #define _ADC_H_ /* * INCLUDE FILES **************************************************************************************** */ #include "global_io.h" #include #include /* * DEFINES **************************************************************************************** */ /* ADC channels */ #define ADC_CHANNEL_P00 (0) #define ADC_CHANNEL_P01 (1) #define ADC_CHANNEL_P02 (2) #define ADC_CHANNEL_P03 (3) #define ADC_CHANNEL_AVS (4) #define ADC_CHANNEL_VDD_REF (5) #define ADC_CHANNEL_VDD_RTT (6) #define ADC_CHANNEL_VBAT3V (7) #define ADC_CHANNEL_VDCDC (8) #define ADC_CHANNEL_VBAT1V (9) #define ADC_POLARITY_SIGNED (0x400) #define ADC_POLARITY_UNSIGNED (0x0) #define ADC_TIMEOUT (100000) /* * FUNCTION DECLARATIONS **************************************************************************************** */ /** **************************************************************************************** * @brief ADC module initialization. * @param[in] mode :0 = Differential mode, GP_ADC_SE(0x800) = Single ended mode * @param[in] sign :0 = Default, GP_ADC_SIGN(0x0400) = Conversion with opposite sign at input and output to cancel out the internal offset of the ADC and low-frequency * @param[in] attn :0 = attenuation x1, GP_ADC_ATTN3X(0x0002) = attenuation x3 * @return void **************************************************************************************** */ void adc_init(uint16_t mode, uint16_t sign, uint16_t attn); /** **************************************************************************************** * @brief Enable selected channel. * @param[in] input_selection Input channel * @return void **************************************************************************************** */ void adc_enable_channel(uint16_t input_selection); /** **************************************************************************************** * @brief Disable ADC module. * @return void **************************************************************************************** */ void adc_disable(void); /** **************************************************************************************** * @brief Get ADC sample. * @return ADC sample **************************************************************************************** */ int adc_get_sample(void); /** **************************************************************************************** * @brief ADC calibration sequence. * @return void **************************************************************************************** */ void adc_calibrate(void); /** **************************************************************************************** * @brief Gets ADC sample from VBAT1V or VBAT3V power supplies using the 20 usec delay. * @param[in] sample_vbat1v :true = sample VBAT1V, false = sample VBAT3V * @return ADC VBAT1V or VBAT3V sample **************************************************************************************** */ uint32_t adc_get_vbat_sample(bool sample_vbat1v); #endif // _ADC_H_