// ucoolib - Microcontroller object oriented library. {{{ // // Copyright (C) 2013 Nicolas Schodet // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. // // }}} #include "ucoo/hal/adc/adc_hard.stm32f4.hh" namespace ucoo { static ADC_TypeDef * const bases[] = { reg::ADC1, reg::ADC2, reg::ADC3 }; static const Rcc rccs[] = { Rcc::ADC1, Rcc::ADC2, Rcc::ADC3 }; AdcHard::AdcHard (AdcHard::Instance inst) : base_ (bases[static_cast (inst)]), rcc_ (rccs[static_cast (inst)]) { } AdcHard::~AdcHard () { disable (); } void AdcHard::enable () { rcc_peripheral_clock_enable (rcc_); base_->CR2 = ADC_CR2_ADON; } void AdcHard::disable () { base_->CR2 = 0; rcc_peripheral_clock_disable (rcc_); } int AdcHard::read (int channel) { base_->SQR3 = channel; base_->CR2 |= ADC_CR2_SWSTART; while (!(base_->SR & ADC_SR_EOC)) yield (); base_->SR = ~ADC_SR_EOC; return base_->DR; } } // namespace ucoo