// ucoolib - Microcontroller object oriented library. {{{ // // Copyright (C) 2013 Nicolas Schodet // // APBTeam: // Web: http://apbteam.org/ // Email: team AT apbteam DOT org // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. // // }}} #include "adc_hard.stm32f4.hh" #include #include namespace ucoo { AdcHard::AdcHard (int n) : n_ (n) { static const uint32_t bases[] = { ADC1, ADC2, ADC3 }; assert (n < (int) lengthof (bases)); base_ = bases[n]; } AdcHard::~AdcHard () { disable (); } void AdcHard::enable () { rcc_peripheral_enable_clock (&RCC_APB2ENR, RCC_APB2ENR_ADC1EN << n_); ADC_CR2 (base_) = ADC_CR2_ADON; } void AdcHard::disable () { ADC_CR2 (base_) = 0; rcc_peripheral_disable_clock (&RCC_APB2ENR, RCC_APB2ENR_ADC1EN << n_); } int AdcHard::read (int channel) { ADC_SQR3 (base_) = channel; ADC_CR2 (base_) |= ADC_CR2_SWSTART; while (!(ADC_SR (base_) & ADC_SR_EOC)) yield (); ADC_SR (base_) = ~ADC_SR_EOC; return ADC_DR (base_); } } // namespace ucoo