mbed library sources
Dependents: Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more
Superseded
This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.
Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.
If you are looking for a stable and tested release, please import one of the official mbed library releases:
Import librarymbed
The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
Diff: targets/hal/TARGET_STM/TARGET_STM32F0/analogin_api.c
- Revision:
- 630:825f75ca301e
- Parent:
- 469:fc4922e0c183
--- a/targets/hal/TARGET_STM/TARGET_STM32F0/analogin_api.c Mon Sep 28 10:30:09 2015 +0100 +++ b/targets/hal/TARGET_STM/TARGET_STM32F0/analogin_api.c Mon Sep 28 10:45:10 2015 +0100 @@ -1,5 +1,5 @@ /* mbed Microcontroller Library - * Copyright (c) 2014, STMicroelectronics + * Copyright (c) 2015, STMicroelectronics * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -34,13 +34,13 @@ #include "cmsis.h" #include "pinmap.h" #include "PeripheralPins.h" +#include "mbed_error.h" ADC_HandleTypeDef AdcHandle; int adc_inited = 0; -void analogin_init(analogin_t *obj, PinName pin) -{ +void analogin_init(analogin_t *obj, PinName pin) { // Get the peripheral name from the pin and assign it to the object obj->adc = (ADCName)pinmap_peripheral(pin, PinMap_ADC); MBED_ASSERT(obj->adc != (ADCName)NC); @@ -73,15 +73,17 @@ AdcHandle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE; AdcHandle.Init.DMAContinuousRequests = DISABLE; AdcHandle.Init.Overrun = OVR_DATA_OVERWRITTEN; - HAL_ADC_Init(&AdcHandle); - + if (HAL_ADC_Init(&AdcHandle) != HAL_OK) { + error("Cannot initialize ADC"); + } // Run the ADC calibration - HAL_ADCEx_Calibration_Start(&AdcHandle); + if (HAL_ADCEx_Calibration_Start(&AdcHandle) != HAL_OK) { + error("Cannot Start ADC_Calibration"); + } } } -static inline uint16_t adc_read(analogin_t *obj) -{ +static inline uint16_t adc_read(analogin_t *obj) { ADC_ChannelConfTypeDef sConfig; AdcHandle.Instance = (ADC_TypeDef *)(obj->adc); @@ -125,6 +127,7 @@ case PB_1: sConfig.Channel = ADC_CHANNEL_9; break; +#if !defined (TARGET_STM32F031K6) case PC_0: sConfig.Channel = ADC_CHANNEL_10; break; @@ -143,6 +146,7 @@ case PC_5: sConfig.Channel = ADC_CHANNEL_15; break; +#endif default: return 0; } @@ -162,16 +166,14 @@ } } -uint16_t analogin_read_u16(analogin_t *obj) -{ +uint16_t analogin_read_u16(analogin_t *obj) { uint16_t value = adc_read(obj); // 12-bit to 16-bit conversion value = ((value << 4) & (uint16_t)0xFFF0) | ((value >> 8) & (uint16_t)0x000F); return value; } -float analogin_read(analogin_t *obj) -{ +float analogin_read(analogin_t *obj) { uint16_t value = adc_read(obj); return (float)value * (1.0f / (float)0xFFF); // 12 bits range }