602 lines
22 KiB
C
602 lines
22 KiB
C
/** @defgroup rcc_defines RCC Defines
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*
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* @brief <b>Defined Constants and Types for the STM32F0xx Reset and Clock
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Control</b>
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*
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* @ingroup STM32F0xx_defines
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*
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* @author @htmlonly © @endhtmlonly 2013
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* Frantisek Burian <BuFran@seznam.cz>
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*
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* @version 1.0.0
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*
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* @date 29 Jun 2013
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*
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* LGPL License Terms @ref lgpl_license
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*/
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2013 Frantisek Burian <BuFran@seznam.cz>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser 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 library 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**@{*/
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#ifndef LIBOPENCM3_RCC_H
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#define LIBOPENCM3_RCC_H
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/*****************************************************************************/
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/* Module definitions */
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/*****************************************************************************/
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/*****************************************************************************/
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/* Register definitions */
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/*****************************************************************************/
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#define RCC_CR MMIO32(RCC_BASE + 0x00)
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#define RCC_CFGR MMIO32(RCC_BASE + 0x04)
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#define RCC_CIR MMIO32(RCC_BASE + 0x08)
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#define RCC_APB2RSTR MMIO32(RCC_BASE + 0x0c)
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#define RCC_APB1RSTR MMIO32(RCC_BASE + 0x10)
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#define RCC_AHBENR MMIO32(RCC_BASE + 0x14)
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#define RCC_APB2ENR MMIO32(RCC_BASE + 0x18)
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#define RCC_APB1ENR MMIO32(RCC_BASE + 0x1c)
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#define RCC_BDCR MMIO32(RCC_BASE + 0x20)
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#define RCC_CSR MMIO32(RCC_BASE + 0x24)
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#define RCC_AHBRSTR MMIO32(RCC_BASE + 0x28)
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#define RCC_CFGR2 MMIO32(RCC_BASE + 0x2c)
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#define RCC_CFGR3 MMIO32(RCC_BASE + 0x30)
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#define RCC_CR2 MMIO32(RCC_BASE + 0x34)
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/*****************************************************************************/
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/* Register values */
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/*****************************************************************************/
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/* --- RCC_CR values ------------------------------------------------------- */
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#define RCC_CR_PLLRDY (1 << 25)
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#define RCC_CR_PLLON (1 << 24)
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#define RCC_CR_CSSON (1 << 19)
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#define RCC_CR_HSEBYP (1 << 18)
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#define RCC_CR_HSERDY (1 << 17)
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#define RCC_CR_HSEON (1 << 16)
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#define RCC_CR_HSICAL_SHIFT 8
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#define RCC_CR_HSICAL (0xFF << RCC_CR_HSICAL_SHIFT)
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#define RCC_CR_HSITRIM_SHIFT 3
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#define RCC_CR_HSITRIM (0x1F << RCC_CR_HSITRIM_SHIFT)
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#define RCC_CR_HSIRDY (1 << 1)
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#define RCC_CR_HSION (1 << 0)
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/* --- RCC_CFGR values ----------------------------------------------------- */
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#define RCC_CFGR_PLLNODIV (1 << 31)
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#define RCC_CFGR_MCOPRE_SHIFT 28
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#define RCC_CFGR_MCOPRE (7 << RCC_CFGR_MCOPRE_SHIFT)
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#define RCC_CFGR_MCOPRE_DIV1 (0 << RCC_CFGR_MCOPRE_SHIFT)
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#define RCC_CFGR_MCOPRE_DIV2 (1 << RCC_CFGR_MCOPRE_SHIFT)
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#define RCC_CFGR_MCOPRE_DIV4 (2 << RCC_CFGR_MCOPRE_SHIFT)
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#define RCC_CFGR_MCOPRE_DIV8 (3 << RCC_CFGR_MCOPRE_SHIFT)
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#define RCC_CFGR_MCOPRE_DIV16 (4 << RCC_CFGR_MCOPRE_SHIFT)
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#define RCC_CFGR_MCOPRE_DIV32 (5 << RCC_CFGR_MCOPRE_SHIFT)
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#define RCC_CFGR_MCOPRE_DIV64 (6 << RCC_CFGR_MCOPRE_SHIFT)
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#define RCC_CFGR_MCOPRE_DIV128 (7 << RCC_CFGR_MCOPRE_SHIFT)
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#define RCC_CFGR_MCO_SHIFT 24
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#define RCC_CFGR_MCO_MASK 0xf
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#define RCC_CFGR_MCO_NOCLK 0
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#define RCC_CFGR_MCO_HSI14 1
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#define RCC_CFGR_MCO_LSI 2
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#define RCC_CFGR_MCO_LSE 3
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#define RCC_CFGR_MCO_SYSCLK 4
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#define RCC_CFGR_MCO_HSI 5
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#define RCC_CFGR_MCO_HSE 6
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#define RCC_CFGR_MCO_PLL 7
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#define RCC_CFGR_MCO_HSI48 8
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#define RCC_CFGR_PLLMUL_SHIFT 18
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#define RCC_CFGR_PLLMUL (0x0F << RCC_CFGR_PLLMUL_SHIFT)
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/** @defgroup rcc_cfgr_pmf PLLMUL: PLL multiplication factor
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* @{
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*/
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#define RCC_CFGR_PLLMUL_MUL2 (0x00 << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL3 (0x01 << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL4 (0x02 << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL5 (0x03 << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL6 (0x04 << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL7 (0x05 << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL8 (0x06 << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL9 (0x07 << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL10 (0x08 << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL11 (0x09 << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL12 (0x0A << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL13 (0x0B << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL14 (0x0C << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL15 (0x0D << RCC_CFGR_PLLMUL_SHIFT)
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#define RCC_CFGR_PLLMUL_MUL16 (0x0E << RCC_CFGR_PLLMUL_SHIFT)
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/**@}*/
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#define RCC_CFGR_PLLXTPRE (1<<17)
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/** @defgroup rcc_cfgr_hsepre PLLXTPRE: HSE divider for PLL source
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* @{
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*/
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#define RCC_CFGR_PLLXTPRE_HSE_CLK 0x0
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#define RCC_CFGR_PLLXTPRE_HSE_CLK_DIV2 0x1
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/**@}*/
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#define RCC_CFGR_PLLSRC (1<<16)
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/** @defgroup rcc_cfgr_pcs PLLSRC: PLL Clock source
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* @{
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*/
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#define RCC_CFGR_PLLSRC_HSI_CLK_DIV2 0x0
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#define RCC_CFGR_PLLSRC_HSE_CLK 0x1
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/**@}*/
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#define RCC_CFGR_PLLSRC0 (1<<15)
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#define RCC_CFGR_ADCPRE (1<<14)
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#define RCC_CFGR_PPRE_SHIFT 8
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#define RCC_CFGR_PPRE (7 << RCC_CFGR_PPRE_SHIFT)
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#define RCC_CFGR_PPRE_MASK 0x7
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/** @defgroup rcc_cfgr_apb1pre RCC_CFGR APB prescale Factors
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@{*/
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#define RCC_CFGR_PPRE_NODIV (0 << RCC_CFGR_PPRE_SHIFT)
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#define RCC_CFGR_PPRE_DIV2 (4 << RCC_CFGR_PPRE_SHIFT)
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#define RCC_CFGR_PPRE_DIV4 (5 << RCC_CFGR_PPRE_SHIFT)
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#define RCC_CFGR_PPRE_DIV8 (6 << RCC_CFGR_PPRE_SHIFT)
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#define RCC_CFGR_PPRE_DIV16 (7 << RCC_CFGR_PPRE_SHIFT)
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/**@}*/
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#define RCC_CFGR_HPRE_SHIFT 4
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#define RCC_CFGR_HPRE (0xf << RCC_CFGR_HPRE_SHIFT)
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#define RCC_CFGR_HPRE_MASK 0xf
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/** @defgroup rcc_cfgr_ahbpre RCC_CFGR AHB prescale Factors
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@{*/
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#define RCC_CFGR_HPRE_NODIV (0x0 << RCC_CFGR_HPRE_SHIFT)
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#define RCC_CFGR_HPRE_DIV2 (0x8 << RCC_CFGR_HPRE_SHIFT)
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#define RCC_CFGR_HPRE_DIV4 (0x9 << RCC_CFGR_HPRE_SHIFT)
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#define RCC_CFGR_HPRE_DIV8 (0xa << RCC_CFGR_HPRE_SHIFT)
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#define RCC_CFGR_HPRE_DIV16 (0xb << RCC_CFGR_HPRE_SHIFT)
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#define RCC_CFGR_HPRE_DIV64 (0xc << RCC_CFGR_HPRE_SHIFT)
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#define RCC_CFGR_HPRE_DIV128 (0xd << RCC_CFGR_HPRE_SHIFT)
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#define RCC_CFGR_HPRE_DIV256 (0xe << RCC_CFGR_HPRE_SHIFT)
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#define RCC_CFGR_HPRE_DIV512 (0xf << RCC_CFGR_HPRE_SHIFT)
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/**@}*/
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#define RCC_CFGR_SWS_SHIFT 2
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#define RCC_CFGR_SWS (3 << RCC_CFGR_SWS_SHIFT)
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#define RCC_CFGR_SWS_HSI (0 << RCC_CFGR_SWS_SHIFT)
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#define RCC_CFGR_SWS_HSE (1 << RCC_CFGR_SWS_SHIFT)
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#define RCC_CFGR_SWS_PLL (2 << RCC_CFGR_SWS_SHIFT)
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#define RCC_CFGR_SWS_HSI48 (3 << RCC_CFGR_SWS_SHIFT)
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#define RCC_CFGR_SW_SHIFT 0
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#define RCC_CFGR_SW (3 << RCC_CFGR_SW_SHIFT)
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#define RCC_CFGR_SW_HSI (0 << RCC_CFGR_SW_SHIFT)
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#define RCC_CFGR_SW_HSE (1 << RCC_CFGR_SW_SHIFT)
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#define RCC_CFGR_SW_PLL (2 << RCC_CFGR_SW_SHIFT)
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#define RCC_CFGR_SW_HSI48 (3 << RCC_CFGR_SW_SHIFT)
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/* --- RCC_CIR values ------------------------------------------------------ */
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#define RCC_CIR_CSSC (1 << 23)
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#define RCC_CIR_HSI48RDYC (1 << 22)
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#define RCC_CIR_HSI14RDYC (1 << 21)
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#define RCC_CIR_PLLRDYC (1 << 20)
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#define RCC_CIR_HSERDYC (1 << 19)
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#define RCC_CIR_HSIRDYC (1 << 18)
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#define RCC_CIR_LSERDYC (1 << 17)
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#define RCC_CIR_LSIRDYC (1 << 16)
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#define RCC_CIR_HSI48RDYIE (1 << 14)
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#define RCC_CIR_HSI14RDYIE (1 << 13)
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#define RCC_CIR_PLLRDYIE (1 << 12)
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#define RCC_CIR_HSERDYIE (1 << 11)
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#define RCC_CIR_HSIRDYIE (1 << 10)
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#define RCC_CIR_LSERDYIE (1 << 9)
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#define RCC_CIR_LSIRDYIE (1 << 8)
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#define RCC_CIR_CSSF (1 << 7)
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#define RCC_CIR_HSI48RDYF (1 << 6)
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#define RCC_CIR_HSI14RDYF (1 << 5)
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#define RCC_CIR_PLLRDYF (1 << 4)
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#define RCC_CIR_HSERDYF (1 << 3)
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#define RCC_CIR_HSIRDYF (1 << 2)
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#define RCC_CIR_LSERDYF (1 << 1)
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#define RCC_CIR_LSIRDYF (1 << 0)
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/** @defgroup rcc_apb2rstr_rst RCC_APB2RSTR reset values
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@{*/
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#define RCC_APB2RSTR_DBGMCURST (1 << 22)
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#define RCC_APB2RSTR_TIM17RST (1 << 18)
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#define RCC_APB2RSTR_TIM16RST (1 << 17)
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#define RCC_APB2RSTR_TIM15RST (1 << 16)
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#define RCC_APB2RSTR_USART1RST (1 << 14)
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#define RCC_APB2RSTR_SPI1RST (1 << 12)
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#define RCC_APB2RSTR_TIM1RST (1 << 11)
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#define RCC_APB2RSTR_ADCRST (1 << 9)
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#define RCC_APB2RSTR_USART8RST (1 << 7)
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#define RCC_APB2RSTR_USART7RST (1 << 6)
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#define RCC_APB2RSTR_USART6RST (1 << 5)
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#define RCC_APB2RSTR_SYSCFGRST (1 << 0)
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/**@}*/
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/** @defgroup rcc_apb1rstr_rst RCC_APB1RSTR reset values
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@{*/
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#define RCC_APB1RSTR_CECRST (1 << 30)
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#define RCC_APB1RSTR_DACRST (1 << 29)
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#define RCC_APB1RSTR_PWRRST (1 << 28)
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#define RCC_APB1RSTR_CRSRST (1 << 27)
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#define RCC_APB1RSTR_CANRST (1 << 25)
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#define RCC_APB1RSTR_USBRST (1 << 23)
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#define RCC_APB1RSTR_I2C2RST (1 << 22)
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#define RCC_APB1RSTR_I2C1RST (1 << 21)
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#define RCC_APB1RSTR_USART5RST (1 << 20)
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#define RCC_APB1RSTR_USART4RST (1 << 19)
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#define RCC_APB1RSTR_USART3RST (1 << 18)
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#define RCC_APB1RSTR_USART2RST (1 << 17)
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#define RCC_APB1RSTR_SPI2RST (1 << 14)
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#define RCC_APB1RSTR_WWDGRST (1 << 11)
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#define RCC_APB1RSTR_TIM14RST (1 << 8)
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#define RCC_APB1RSTR_TIM7RST (1 << 5)
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#define RCC_APB1RSTR_TIM6RST (1 << 4)
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#define RCC_APB1RSTR_TIM3RST (1 << 1)
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#define RCC_APB1RSTR_TIM2RST (1 << 0)
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/**@}*/
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/** @defgroup rcc_ahbenr_en RCC_APHBENR enable values
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@{*/
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#define RCC_AHBENR_TSCEN (1 << 24)
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#define RCC_AHBENR_GPIOFEN (1 << 22)
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#define RCC_AHBENR_GPIOEEN (1 << 21)
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#define RCC_AHBENR_GPIODEN (1 << 20)
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#define RCC_AHBENR_GPIOCEN (1 << 19)
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#define RCC_AHBENR_GPIOBEN (1 << 18)
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#define RCC_AHBENR_GPIOAEN (1 << 17)
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#define RCC_AHBENR_CRCEN (1 << 6)
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#define RCC_AHBENR_FLTFEN (1 << 4)
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#define RCC_AHBENR_SRAMEN (1 << 2)
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#define RCC_AHBENR_DMA2EN (1 << 1)
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#define RCC_AHBENR_DMA1EN (1 << 0)
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#define RCC_AHBENR_DMAEN RCC_AHBENR_DMA1EN /* compatibility alias */
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/**@}*/
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/** @defgroup rcc_apb2enr_en RCC_APPB2ENR enable values
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@{*/
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#define RCC_APB2ENR_DBGMCUEN (1 << 22)
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#define RCC_APB2ENR_TIM17EN (1 << 18)
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#define RCC_APB2ENR_TIM16EN (1 << 17)
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#define RCC_APB2ENR_TIM15EN (1 << 16)
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#define RCC_APB2ENR_USART1EN (1 << 14)
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#define RCC_APB2ENR_SPI1EN (1 << 12)
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#define RCC_APB2ENR_TIM1EN (1 << 11)
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#define RCC_APB2ENR_ADCEN (1 << 9)
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#define RCC_APB2ENR_USART8EN (1 << 7)
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#define RCC_APB2ENR_USART7EN (1 << 6)
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#define RCC_APB2ENR_USART6EN (1 << 5)
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#define RCC_APB2ENR_SYSCFGCOMPEN (1 << 0)
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/**@}*/
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/** @defgroup rcc_apb1enr_en RCC_APB1ENR enable values
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@{*/
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#define RCC_APB1ENR_CECEN (1 << 30)
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#define RCC_APB1ENR_DACEN (1 << 29)
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#define RCC_APB1ENR_PWREN (1 << 28)
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#define RCC_APB1ENR_CRSEN (1 << 27)
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#define RCC_APB1ENR_CANEN (1 << 25)
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#define RCC_APB1ENR_USBEN (1 << 23)
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#define RCC_APB1ENR_I2C2EN (1 << 22)
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#define RCC_APB1ENR_I2C1EN (1 << 21)
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#define RCC_APB1ENR_USART5EN (1 << 20)
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#define RCC_APB1ENR_USART4EN (1 << 19)
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#define RCC_APB1ENR_USART3EN (1 << 18)
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#define RCC_APB1ENR_USART2EN (1 << 17)
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#define RCC_APB1ENR_SPI2EN (1 << 14)
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#define RCC_APB1ENR_WWDGEN (1 << 11)
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#define RCC_APB1ENR_TIM14EN (1 << 8)
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#define RCC_APB1ENR_TIM7EN (1 << 5)
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#define RCC_APB1ENR_TIM6EN (1 << 4)
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#define RCC_APB1ENR_TIM3EN (1 << 1)
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#define RCC_APB1ENR_TIM2EN (1 << 0)
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/**@}*/
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/* --- RCC_BDCR values ----------------------------------------------------- */
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#define RCC_BDCR_BDRST (1 << 16)
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#define RCC_BDCR_RTCEN (1 << 15)
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#define RCC_BDCR_RTCSEL_SHIFT 8
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#define RCC_BDCR_RTCSEL (3 << RCC_BDCR_RTCSEL_SHIFT)
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#define RCC_BDCR_RTCSEL_NOCLK (0 << RCC_BDCR_RTCSEL_SHIFT)
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#define RCC_BDCR_RTCSEL_LSE (1 << RCC_BDCR_RTCSEL_SHIFT)
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#define RCC_BDCR_RTCSEL_LSI (2 << RCC_BDCR_RTCSEL_SHIFT)
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#define RCC_BDCR_RTCSEL_HSE (3 << RCC_BDCR_RTCSEL_SHIFT)
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#define RCC_BDCR_LSEDRV_SHIFT 3
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#define RCC_BDCR_LSEDRV (3 << RCC_BDCR_LSEDRV_SHIFT)
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#define RCC_BDCR_LSEDRV_LOW (0 << RCC_BDCR_LSEDRV_SHIFT)
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#define RCC_BDCR_LSEDRV_MEDLO (1 << RCC_BDCR_LSEDRV_SHIFT)
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#define RCC_BDCR_LSEDRV_MEDHI (2 << RCC_BDCR_LSEDRV_SHIFT)
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#define RCC_BDCR_LSEDRV_HIGH (3 << RCC_BDCR_LSEDRV_SHIFT)
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#define RCC_BDCR_LSEBYP (1 << 2)
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#define RCC_BDCR_LSERDY (1 << 1)
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#define RCC_BDCR_LSEON (1 << 0)
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/* --- RCC_CSR values ------------------------------------------------------ */
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#define RCC_CSR_LPWRRSTF (1 << 31)
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#define RCC_CSR_WWDGRSTF (1 << 30)
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#define RCC_CSR_IWDGRSTF (1 << 29)
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#define RCC_CSR_SFTRSTF (1 << 28)
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#define RCC_CSR_PORRSTF (1 << 27)
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#define RCC_CSR_PINRSTF (1 << 26)
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#define RCC_CSR_OBLRSTF (1 << 25)
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#define RCC_CSR_RMVF (1 << 24)
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#define RCC_CSR_RESET_FLAGS (RCC_CSR_LPWRRSTF | RCC_CSR_WWDGRSTF |\
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RCC_CSR_IWDGRSTF | RCC_CSR_SFTRSTF | RCC_CSR_PORRSTF |\
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RCC_CSR_PINRSTF | RCC_CSR_OBLRSTF)
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#define RCC_CSR_V18PWRRSTF (1 << 23)
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#define RCC_CSR_LSIRDY (1 << 1)
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#define RCC_CSR_LSION (1 << 0)
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/** @defgroup rcc_ahbrstr_rst RCC_AHBRSTR reset values
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@{*/
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#define RCC_AHBRSTR_TSCRST (1 << 24)
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#define RCC_AHBRSTR_IOPFRST (1 << 22)
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#define RCC_AHBRSTR_IOPERST (1 << 21)
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#define RCC_AHBRSTR_IOPDRST (1 << 20)
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#define RCC_AHBRSTR_IOPCRST (1 << 19)
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#define RCC_AHBRSTR_IOPBRST (1 << 18)
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#define RCC_AHBRSTR_IOPARST (1 << 17)
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/**@}*/
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/* --- RCC_CFGR2 values ---------------------------------------------------- */
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#define RCC_CFGR2_PREDIV 0xf
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/** @defgroup rcc_cfgr2_prediv PLL source predividers
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@ingroup rcc_defines
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@{*/
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#define RCC_CFGR2_PREDIV_NODIV 0x0
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#define RCC_CFGR2_PREDIV_DIV2 0x1
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#define RCC_CFGR2_PREDIV_DIV3 0x2
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#define RCC_CFGR2_PREDIV_DIV4 0x3
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#define RCC_CFGR2_PREDIV_DIV5 0x4
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#define RCC_CFGR2_PREDIV_DIV6 0x5
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#define RCC_CFGR2_PREDIV_DIV7 0x6
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#define RCC_CFGR2_PREDIV_DIV8 0x7
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#define RCC_CFGR2_PREDIV_DIV9 0x8
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#define RCC_CFGR2_PREDIV_DIV10 0x9
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#define RCC_CFGR2_PREDIV_DIV11 0xa
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#define RCC_CFGR2_PREDIV_DIV12 0xb
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#define RCC_CFGR2_PREDIV_DIV13 0xc
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#define RCC_CFGR2_PREDIV_DIV14 0xd
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#define RCC_CFGR2_PREDIV_DIV15 0xe
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#define RCC_CFGR2_PREDIV_DIV16 0xf
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/**@}*/
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/* --- RCC_CFGR3 values ---------------------------------------------------- */
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#define RCC_CFGR3_USART3SW_SHIFT 18
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#define RCC_CFGR3_USART3SW (3 << RCC_CFGR3_USART2SW_SHIFT)
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#define RCC_CFGR3_USART3SW_PCLK (0 << RCC_CFGR3_USART2SW_SHIFT)
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#define RCC_CFGR3_USART3SW_SYSCLK (1 << RCC_CFGR3_USART2SW_SHIFT)
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#define RCC_CFGR3_USART3SW_LSE (2 << RCC_CFGR3_USART2SW_SHIFT)
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#define RCC_CFGR3_USART3SW_HSI (3 << RCC_CFGR3_USART2SW_SHIFT)
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#define RCC_CFGR3_USART2SW_SHIFT 16
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#define RCC_CFGR3_USART2SW (3 << RCC_CFGR3_USART2SW_SHIFT)
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#define RCC_CFGR3_USART2SW_PCLK (0 << RCC_CFGR3_USART2SW_SHIFT)
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#define RCC_CFGR3_USART2SW_SYSCLK (1 << RCC_CFGR3_USART2SW_SHIFT)
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#define RCC_CFGR3_USART2SW_LSE (2 << RCC_CFGR3_USART2SW_SHIFT)
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#define RCC_CFGR3_USART2SW_HSI (3 << RCC_CFGR3_USART2SW_SHIFT)
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#define RCC_CFGR3_ADCSW (1 << 8)
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#define RCC_CFGR3_USBSW (1 << 7)
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#define RCC_CFGR3_CECSW (1 << 6)
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#define RCC_CFGR3_I2C1SW (1 << 4)
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#define RCC_CFGR3_USART1SW_SHIFT 0
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#define RCC_CFGR3_USART1SW (3 << RCC_CFGR3_USART1SW_SHIFT)
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#define RCC_CFGR3_USART1SW_PCLK (0 << RCC_CFGR3_USART1SW_SHIFT)
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#define RCC_CFGR3_USART1SW_SYSCLK (1 << RCC_CFGR3_USART1SW_SHIFT)
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#define RCC_CFGR3_USART1SW_LSE (2 << RCC_CFGR3_USART1SW_SHIFT)
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#define RCC_CFGR3_USART1SW_HSI (3 << RCC_CFGR3_USART1SW_SHIFT)
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|
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#define RCC_CFGR3_USARTxSW_MASK 3
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|
|
|
/* --- RCC_CFGR3 values ---------------------------------------------------- */
|
|
|
|
#define RCC_CR2_HSI48CAL_SHIFT 24
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|
#define RCC_CR2_HSI48CAL (0xFF << RCC_CR2_HSI48CAL_SHIFT)
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|
#define RCC_CR2_HSI48RDY (1 << 17)
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|
#define RCC_CR2_HSI48ON (1 << 16)
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|
#define RCC_CR2_HSI14CAL_SHIFT 8
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|
#define RCC_CR2_HSI14CAL (0xFF << RCC_CR2_HSI14CAL_SHIFT)
|
|
#define RCC_CR2_HSI14TRIM_SHIFT 3
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|
#define RCC_CR2_HSI14TRIM (31 << RCC_CR2_HSI14TRIM_SHIFT)
|
|
#define RCC_CR2_HSI14DIS (1 << 2)
|
|
#define RCC_CR2_HSI14RDY (1 << 1)
|
|
#define RCC_CR2_HSI14ON (1 << 0)
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|
|
|
/*****************************************************************************/
|
|
/* API definitions */
|
|
/*****************************************************************************/
|
|
|
|
/* --- Variable definitions ------------------------------------------------ */
|
|
extern uint32_t rcc_ahb_frequency;
|
|
extern uint32_t rcc_apb1_frequency;
|
|
/** F0 doens't _realllly_ have apb2, but it has a bunch of things
|
|
* enabled via the "APB2" enable register. Fake it out.
|
|
*/
|
|
#define rcc_apb2_frequency rcc_apb1_frequency
|
|
|
|
enum rcc_osc {
|
|
RCC_HSI14, RCC_HSI, RCC_HSE, RCC_PLL, RCC_LSI, RCC_LSE, RCC_HSI48
|
|
};
|
|
|
|
#define _REG_BIT(base, bit) (((base) << 5) + (bit))
|
|
|
|
enum rcc_periph_clken {
|
|
/* AHB peripherals */
|
|
RCC_DMA = _REG_BIT(0x14, 0),
|
|
RCC_DMA1 = _REG_BIT(0x14, 0), /* Compatibility alias */
|
|
RCC_DMA2 = _REG_BIT(0x14, 1),
|
|
RCC_SRAM = _REG_BIT(0x14, 2),
|
|
RCC_FLTIF = _REG_BIT(0x14, 4),
|
|
RCC_CRC = _REG_BIT(0x14, 6),
|
|
RCC_GPIOA = _REG_BIT(0x14, 17),
|
|
RCC_GPIOB = _REG_BIT(0x14, 18),
|
|
RCC_GPIOC = _REG_BIT(0x14, 19),
|
|
RCC_GPIOD = _REG_BIT(0x14, 20),
|
|
RCC_GPIOE = _REG_BIT(0x14, 21),
|
|
RCC_GPIOF = _REG_BIT(0x14, 22),
|
|
RCC_TSC = _REG_BIT(0x14, 24),
|
|
|
|
/* APB2 peripherals */
|
|
RCC_SYSCFG_COMP = _REG_BIT(0x18, 0),
|
|
RCC_USART6 = _REG_BIT(0x18, 5),
|
|
RCC_USART7 = _REG_BIT(0x18, 6),
|
|
RCC_USART8 = _REG_BIT(0x18, 7),
|
|
RCC_ADC = _REG_BIT(0x18, 9),
|
|
RCC_ADC1 = _REG_BIT(0x18, 9), /* Compatibility alias */
|
|
RCC_TIM1 = _REG_BIT(0x18, 11),
|
|
RCC_SPI1 = _REG_BIT(0x18, 12),
|
|
RCC_USART1 = _REG_BIT(0x18, 14),
|
|
RCC_TIM15 = _REG_BIT(0x18, 16),
|
|
RCC_TIM16 = _REG_BIT(0x18, 17),
|
|
RCC_TIM17 = _REG_BIT(0x18, 18),
|
|
RCC_DBGMCU = _REG_BIT(0x18, 22),
|
|
|
|
/* APB1 peripherals */
|
|
RCC_TIM2 = _REG_BIT(0x1C, 0),
|
|
RCC_TIM3 = _REG_BIT(0x1C, 1),
|
|
RCC_TIM6 = _REG_BIT(0x1C, 4),
|
|
RCC_TIM7 = _REG_BIT(0x1C, 5),
|
|
RCC_TIM14 = _REG_BIT(0x1C, 8),
|
|
RCC_WWDG = _REG_BIT(0x1C, 11),
|
|
RCC_SPI2 = _REG_BIT(0x1C, 14),
|
|
RCC_USART2 = _REG_BIT(0x1C, 17),
|
|
RCC_USART3 = _REG_BIT(0x1C, 18),
|
|
RCC_USART4 = _REG_BIT(0x1C, 19),
|
|
RCC_USART5 = _REG_BIT(0x1C, 20),
|
|
RCC_I2C1 = _REG_BIT(0x1C, 21),
|
|
RCC_I2C2 = _REG_BIT(0x1C, 22),
|
|
RCC_USB = _REG_BIT(0x1C, 23),
|
|
RCC_CAN = _REG_BIT(0x1C, 25),
|
|
RCC_CAN1 = _REG_BIT(0x1C, 25), /* Compatibility alias */
|
|
RCC_CRS = _REG_BIT(0x1C, 27),
|
|
RCC_PWR = _REG_BIT(0x1C, 28),
|
|
RCC_DAC = _REG_BIT(0x1C, 29),
|
|
RCC_DAC1 = _REG_BIT(0x1C, 29), /* Compatibility alias */
|
|
RCC_CEC = _REG_BIT(0x1C, 30),
|
|
|
|
/* Advanced peripherals */
|
|
RCC_RTC = _REG_BIT(0x20, 15),/* BDCR[15] */
|
|
};
|
|
|
|
enum rcc_periph_rst {
|
|
/* APB2 peripherals */
|
|
RST_SYSCFG = _REG_BIT(0x0C, 0),
|
|
RST_ADC = _REG_BIT(0x0C, 9),
|
|
RST_ADC1 = _REG_BIT(0x0C, 9), /* Compatibility alias */
|
|
RST_TIM1 = _REG_BIT(0x0C, 11),
|
|
RST_SPI1 = _REG_BIT(0x0C, 12),
|
|
RST_USART1 = _REG_BIT(0x0C, 14),
|
|
RST_TIM15 = _REG_BIT(0x0C, 16),
|
|
RST_TIM16 = _REG_BIT(0x0C, 17),
|
|
RST_TIM17 = _REG_BIT(0x0C, 18),
|
|
RST_DBGMCU = _REG_BIT(0x0C, 22),
|
|
|
|
/* APB1 peripherals */
|
|
RST_TIM2 = _REG_BIT(0x10, 0),
|
|
RST_TIM3 = _REG_BIT(0x10, 1),
|
|
RST_TIM6 = _REG_BIT(0x10, 4),
|
|
RST_TIM7 = _REG_BIT(0x10, 5),
|
|
RST_TIM14 = _REG_BIT(0x10, 8),
|
|
RST_WWDG = _REG_BIT(0x10, 11),
|
|
RST_SPI2 = _REG_BIT(0x10, 14),
|
|
RST_USART2 = _REG_BIT(0x10, 17),
|
|
RST_USART3 = _REG_BIT(0x10, 18),
|
|
RST_USART4 = _REG_BIT(0x10, 19),
|
|
RST_I2C1 = _REG_BIT(0x10, 21),
|
|
RST_I2C2 = _REG_BIT(0x10, 22),
|
|
RST_USB = _REG_BIT(0x10, 23),
|
|
RST_CAN = _REG_BIT(0x10, 25),
|
|
RST_CAN1 = _REG_BIT(0x10, 25), /* Compatibility alias */
|
|
RST_CRS = _REG_BIT(0x10, 27),
|
|
RST_PWR = _REG_BIT(0x10, 28),
|
|
RST_DAC = _REG_BIT(0x10, 29),
|
|
RST_DAC1 = _REG_BIT(0x10, 29), /* Compatibility alias */
|
|
RST_CEC = _REG_BIT(0x10, 30),
|
|
|
|
/* Advanced peripherals */
|
|
RST_BACKUPDOMAIN = _REG_BIT(0x20, 16),/* BDCR[16] */
|
|
|
|
/* AHB peripherals */
|
|
RST_GPIOA = _REG_BIT(0x28, 17),
|
|
RST_GPIOB = _REG_BIT(0x28, 18),
|
|
RST_GPIOC = _REG_BIT(0x28, 19),
|
|
RST_GPIOD = _REG_BIT(0x28, 20),
|
|
RST_GPIOE = _REG_BIT(0x28, 21),
|
|
RST_GPIOF = _REG_BIT(0x28, 22),
|
|
RST_TSC = _REG_BIT(0x28, 24),
|
|
};
|
|
#undef _REG_BIT
|
|
|
|
/*****************************************************************************/
|
|
/* API Functions */
|
|
/*****************************************************************************/
|
|
|
|
#include <libopencm3/stm32/common/rcc_common_all.h>
|
|
|
|
BEGIN_DECLS
|
|
|
|
void rcc_osc_ready_int_clear(enum rcc_osc osc);
|
|
void rcc_osc_ready_int_enable(enum rcc_osc osc);
|
|
void rcc_osc_ready_int_disable(enum rcc_osc osc);
|
|
int rcc_osc_ready_int_flag(enum rcc_osc osc);
|
|
void rcc_osc_on(enum rcc_osc osc);
|
|
void rcc_osc_off(enum rcc_osc osc);
|
|
void rcc_css_enable(void);
|
|
void rcc_css_disable(void);
|
|
void rcc_css_int_clear(void);
|
|
int rcc_css_int_flag(void);
|
|
void rcc_set_sysclk_source(enum rcc_osc clk);
|
|
void rcc_set_usbclk_source(enum rcc_osc clk);
|
|
void rcc_set_rtc_clock_source(enum rcc_osc clk);
|
|
void rcc_enable_rtc_clock(void);
|
|
void rcc_disable_rtc_clock(void);
|
|
void rcc_set_pll_multiplication_factor(uint32_t mul);
|
|
void rcc_set_pll_source(uint32_t pllsrc);
|
|
void rcc_set_pllxtpre(uint32_t pllxtpre);
|
|
void rcc_set_ppre(uint32_t ppre);
|
|
void rcc_set_hpre(uint32_t hpre);
|
|
void rcc_set_prediv(uint32_t prediv);
|
|
enum rcc_osc rcc_system_clock_source(void);
|
|
void rcc_set_i2c_clock_hsi(uint32_t i2c);
|
|
void rcc_set_i2c_clock_sysclk(uint32_t i2c);
|
|
uint32_t rcc_get_i2c_clocks(void);
|
|
enum rcc_osc rcc_usb_clock_source(void);
|
|
void rcc_clock_setup_in_hse_8mhz_out_48mhz(void);
|
|
void rcc_clock_setup_in_hsi_out_48mhz(void);
|
|
void rcc_clock_setup_in_hsi48_out_48mhz(void);
|
|
uint32_t rcc_get_usart_clk_freq(uint32_t usart);
|
|
uint32_t rcc_get_timer_clk_freq(uint32_t timer);
|
|
uint32_t rcc_get_i2c_clk_freq(uint32_t i2c);
|
|
uint32_t rcc_get_spi_clk_freq(uint32_t spi);
|
|
|
|
END_DECLS
|
|
|
|
#endif
|
|
/**@}*/
|
|
|