213 lines
3.3 KiB
C
213 lines
3.3 KiB
C
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/*
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* This file is part of the libopenstm32 project.
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*
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* Copyright (C) 2009 Federico Ruiz-Ugalde <memeruiz at gmail dot com>
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* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "libopenstm32.h"
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void rcc_osc_ready_int_clear(osc_t osc)
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{
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switch (osc) {
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case PLL:
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RCC_CR |= PLLRDYC;
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break;
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case HSE:
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RCC_CR |= HSERDYC;
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break;
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case HSI:
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RCC_CR |= HSIRDYC;
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break;
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case LSE:
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RCC_CIR |= LSERDYC;
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break;
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case LSI:
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RCC_CIR |= LSIRDYC;
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break;
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}
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}
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void rcc_osc_ready_int_enable(osc_t osc)
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{
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switch (osc) {
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case PLL:
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RCC_CR |= PLLRDYIE;
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break;
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case HSE:
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RCC_CR |= HSERDYIE;
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break;
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case HSI:
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RCC_CR |= HSIRDYIE;
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break;
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case LSE:
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RCC_CIR |= LSERDYIE;
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break;
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case LSI:
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RCC_CIR |= LSIRDYIE;
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break;
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}
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}
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void rcc_osc_ready_int_disable(osc_t osc)
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{
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switch (osc) {
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case PLL:
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RCC_CR &= ~PLLRDYIE;
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break;
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case HSE:
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RCC_CR &= ~HSERDYIE;
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break;
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case HSI:
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RCC_CR &= ~HSIRDYIE;
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break;
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case LSE:
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RCC_CIR &= ~LSERDYIE;
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break;
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case LSI:
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RCC_CIR &= ~LSIRDYIE;
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break;
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}
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}
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int rcc_osc_ready_int_flag(osc_t osc)
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{
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switch (osc) {
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case PLL:
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return ((RCC_CR & PLLRDYF) != 0);
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break;
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case HSE:
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return ((RCC_CR & HSERDYF) != 0);
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break;
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case HSI:
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return ((RCC_CR & HSIRDYF) != 0);
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break;
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case LSE:
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return ((RCC_CIR & LSERDYF) != 0);
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break;
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case LSI:
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return ((RCC_CIR & LSIRDYF) != 0);
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break;
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}
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}
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void rcc_css_int_clear(void)
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{
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RCC_CIR |= CSSC;
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}
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int rcc_css_int_flag(void)
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{
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return ((RCC_CIR & CSSF) != 0);
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}
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int rcc_osc_ready(osc_t osc)
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{
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switch (osc) {
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case PLL:
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return ((RCC_CR & PLLRDY) != 0);
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break;
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case HSE:
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return ((RCC_CR & HSERDY) != 0);
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break;
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case HSI:
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return ((RCC_CR & HSIRDY) != 0);
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break;
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case LSE:
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return ((RCC_BDCR & LSERDY) != 0);
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break;
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case LSI:
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return ((RCC_CSR & LSIRDY) != 0);
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break;
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}
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}
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void rcc_osc_on(osc_t osc)
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{
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switch (osc) {
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case PLL:
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RCC_CR |= PLLON;
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break;
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case HSE:
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RCC_CR |= HSEON;
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break;
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case HSI:
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RCC_CR |= HSION;
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break;
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case LSE:
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RCC_BDCR |= LSEON;
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break;
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case LSI:
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RCC_CSR |= LSION;
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break;
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}
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}
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void rcc_osc_off(osc_t osc)
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{
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switch (osc) {
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case PLL:
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RCC_CR &= ~PLLON;
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break;
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case HSE:
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RCC_CR &= ~HSEON;
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break;
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case HSI:
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RCC_CR &= ~HSION;
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break;
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case LSE:
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RCC_BDCR &= ~LSEON;
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break;
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case LSI:
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RCC_CSR &= ~LSION;
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break;
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}
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}
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void rcc_css_enable(void)
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{
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RCC_CR |= CSSON;
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}
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void rcc_css_disable(void)
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{
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RCC_CR &= ~CSSON;
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}
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void rcc_osc_bypass_enable(osc_t osc)
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{
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switch (osc) {
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case HSE:
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RCC_CR |= HSEBYP;
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break;
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case LSE:
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RCC_BDCR |= LSEBYP;
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break;
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}
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}
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void rcc_osc_bypass_disable(osc_t osc)
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{
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switch (osc) {
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case HSE:
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RCC_CR &= ~HSEBYP;
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break;
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case LSE:
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RCC_BDCR &= ~LSEBYP;
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break;
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}
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}
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