libopencm3/include/libopencm3/stm32/l4/rcc.h

1000 lines
34 KiB
C

/** @defgroup rcc_defines RCC Defines
*
* @ingroup STM32L4xx_defines
*
* @brief <b>Defined Constants and Types for the STM32L4xx Reset and Clock
* Control</b>
*
* @version 1.0.0
*
* @author @htmlonly &copy; @endhtmlonly 2015 Karl Palsson <karlp@tweak.net.au>
*
* @date 12 November 2015
*
* LGPL License Terms @ref lgpl_license
* */
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2015 Karl Palsson <karlp@tweak.net.au>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**@{*/
#ifndef LIBOPENCM3_RCC_H
#define LIBOPENCM3_RCC_H
/* --- RCC registers ------------------------------------------------------- */
#define RCC_CR MMIO32(RCC_BASE + 0x00)
#define RCC_ICSCR MMIO32(RCC_BASE + 0x04)
#define RCC_CFGR MMIO32(RCC_BASE + 0x08)
#define RCC_PLLCFGR MMIO32(RCC_BASE + 0x0c)
#define RCC_PLLSAI1_CFGR MMIO32(RCC_BASE + 0x10)
#define RCC_PLLSAI2_CFGR MMIO32(RCC_BASE + 0x14)
#define RCC_CIER MMIO32(RCC_BASE + 0x18)
#define RCC_CIFR MMIO32(RCC_BASE + 0x1c)
#define RCC_CICR MMIO32(RCC_BASE + 0x20)
#define RCC_AHB1RSTR_OFFSET 0x28
#define RCC_AHB1RSTR MMIO32(RCC_BASE + RCC_AHB1RSTR_OFFSET)
#define RCC_AHB2RSTR_OFFSET 0x2c
#define RCC_AHB2RSTR MMIO32(RCC_BASE + RCC_AHB2RSTR_OFFSET)
#define RCC_AHB3RSTR_OFFSET 0x30
#define RCC_AHB3RSTR MMIO32(RCC_BASE + RCC_AHB3RSTR_OFFSET)
#define RCC_APB1RSTR1_OFFSET 0x38
#define RCC_APB1RSTR1 MMIO32(RCC_BASE + RCC_APB1RSTR1_OFFSET)
#define RCC_APB1RSTR2_OFFSET 0x3c
#define RCC_APB1RSTR2 MMIO32(RCC_BASE + RCC_APB1RSTR2_OFFSET)
#define RCC_APB2RSTR_OFFSET 0x40
#define RCC_APB2RSTR MMIO32(RCC_BASE + RCC_APB2RSTR_OFFSET)
#define RCC_AHB1ENR_OFFSET 0x48
#define RCC_AHB1ENR MMIO32(RCC_BASE + RCC_AHB1ENR_OFFSET)
#define RCC_AHB2ENR_OFFSET 0x4c
#define RCC_AHB2ENR MMIO32(RCC_BASE + RCC_AHB2ENR_OFFSET)
#define RCC_AHB3ENR_OFFSET 0x50
#define RCC_AHB3ENR MMIO32(RCC_BASE + RCC_AHB3ENR_OFFSET)
#define RCC_APB1ENR1_OFFSET 0x58
#define RCC_APB1ENR1 MMIO32(RCC_BASE + RCC_APB1ENR1_OFFSET)
#define RCC_APB1ENR2_OFFSET 0x5c
#define RCC_APB1ENR2 MMIO32(RCC_BASE + RCC_APB1ENR2_OFFSET)
#define RCC_APB2ENR_OFFSET 0x60
#define RCC_APB2ENR MMIO32(RCC_BASE + RCC_APB2ENR_OFFSET)
#define RCC_AHB1SMENR_OFFSET 0x68
#define RCC_AHB1SMENR MMIO32(RCC_BASE + RCC_AHB1SMENR_OFFSET)
#define RCC_AHB2SMENR_OFFSET 0x6c
#define RCC_AHB2SMENR MMIO32(RCC_BASE + RCC_AHB2SMENR_OFFSET)
#define RCC_AHB3SMENR_OFFSET 0x70
#define RCC_AHB3SMENR MMIO32(RCC_BASE + RCC_AHB3SMENR_OFFSET)
#define RCC_APB1SMENR1_OFFSET 0x78
#define RCC_APB1SMENR1 MMIO32(RCC_BASE + RCC_APB1SMENR1_OFFSET)
#define RCC_APB1SMENR2_OFFSET 0x7c
#define RCC_APB1SMENR2 MMIO32(RCC_BASE + RCC_APB1SMENR2_OFFSET)
#define RCC_APB2SMENR_OFFSET 0x80
#define RCC_APB2SMENR MMIO32(RCC_BASE + RCC_APB2SMENR_OFFSET)
#define RCC_CCIPR MMIO32(RCC_BASE + 0x88)
#define RCC_BDCR MMIO32(RCC_BASE + 0x90)
#define RCC_CSR MMIO32(RCC_BASE + 0x94)
#define RCC_CRRCR MMIO32(RCC_BASE + 0x98)
/* --- RCC_CR values ------------------------------------------------------- */
#define RCC_CR_PLLSAI2RDY (1 << 29)
#define RCC_CR_PLLSAI2ON (1 << 28)
#define RCC_CR_PLLSAI1RDY (1 << 27)
#define RCC_CR_PLLSAI1ON (1 << 26)
#define RCC_CR_PLLRDY (1 << 25)
#define RCC_CR_PLLON (1 << 24)
#define RCC_CR_CSSON (1 << 19)
#define RCC_CR_HSEBYP (1 << 18)
#define RCC_CR_HSERDY (1 << 17)
#define RCC_CR_HSEON (1 << 16)
#define RCC_CR_HSIASFS (1 << 11)
#define RCC_CR_HSIRDY (1 << 10)
#define RCC_CR_HSIKERON (1 << 9)
#define RCC_CR_HSION (1 << 8)
/** @defgroup rcc_cr_msirange MSI Range
* @ingroup STM32L4xx_rcc_defines
* @brief Range of the MSI oscillator
Twelve frequency ranges are available: 100 kHz, 200 kHz, 400 kHz, 800 kHz,
1 MHz, 2 MHz, 4 MHz (default value), 8 MHz, 16 MHz, 24 MHz, 32 MHz and 48 MHz
@sa rcc_csr_msirange
@{*/
#define RCC_CR_MSIRANGE_SHIFT 4
#define RCC_CR_MSIRANGE_MASK 0xf
#define RCC_CR_MSIRANGE_100KHZ 0
#define RCC_CR_MSIRANGE_200KHZ 1
#define RCC_CR_MSIRANGE_400KHZ 2
#define RCC_CR_MSIRANGE_800KHZ 3
#define RCC_CR_MSIRANGE_1MHZ 4
#define RCC_CR_MSIRANGE_2MHZ 5
#define RCC_CR_MSIRANGE_4MHZ 6
#define RCC_CR_MSIRANGE_8MHZ 7
#define RCC_CR_MSIRANGE_16MHZ 8
#define RCC_CR_MSIRANGE_24MHZ 9
#define RCC_CR_MSIRANGE_32MHZ 10
#define RCC_CR_MSIRANGE_48MHZ 11
/*@}*/
#define RCC_CR_MSIRGSEL (1 << 3)
#define RCC_CR_MSIPLLEN (1 << 2)
#define RCC_CR_MSIRDY (1 << 1)
#define RCC_CR_MSION (1 << 0)
/* --- RCC_CRRCR values ---------------------------------------------------- */
#define RCC_CRRCR_HSI48ON (1 << 0)
#define RCC_CRRCR_HSI48RDY (1 << 1)
/* --- RCC_ICSCR values ---------------------------------------------------- */
#define RCC_ICSCR_HSITRIM_SHIFT 24
#define RCC_ICSCR_HSITRIM_MASK 0x1f
#define RCC_ICSCR_HSICAL_SHIFT 16
#define RCC_ICSCR_HSICAL_MASK 0xff
#define RCC_ICSCR_MSITRIM_SHIFT 8
#define RCC_ICSCR_MSITRIM_MASK 0xff
#define RCC_ICSCR_MSICAL_SHIFT 0
#define RCC_ICSCR_MSICAL_MASK 0xff
/* --- RCC_CFGR values ----------------------------------------------------- */
/* MCOPRE */
#define RCC_CFGR_MCOPRE_DIV1 0
#define RCC_CFGR_MCOPRE_DIV2 1
#define RCC_CFGR_MCOPRE_DIV4 2
#define RCC_CFGR_MCOPRE_DIV8 3
#define RCC_CFGR_MCOPRE_DIV16 4
#define RCC_CFGR_MCOPRE_SHIFT 28
#define RCC_CFGR_MCOPRE_MASK 0x7
/* MCO: Microcontroller clock output */
#define RCC_CFGR_MCO_NOCLK 0x0
#define RCC_CFGR_MCO_SYSCLK 0x1
#define RCC_CFGR_MCO_MSI 0x2
#define RCC_CFGR_MCO_HSI16 0x3
#define RCC_CFGR_MCO_HSE 0x4
#define RCC_CFGR_MCO_PLL 0x5
#define RCC_CFGR_MCO_LSI 0x6
#define RCC_CFGR_MCO_LSE 0x7
#define RCC_CFGR_MCO_HSI48 0x8
#define RCC_CFGR_MCO_SHIFT 24
#define RCC_CFGR_MCO_MASK 0xf
/* Wakeup from stop clock selection */
#define RCC_CFGR_STOPWUCK_MSI (0 << 15)
#define RCC_CFGR_STOPWUCK_HSI16 (1 << 15)
/* PPRE2: APB high-speed prescaler (APB2) */
#define RCC_CFGR_PPRE2_NODIV 0x0
#define RCC_CFGR_PPRE2_DIV2 0x4
#define RCC_CFGR_PPRE2_DIV4 0x5
#define RCC_CFGR_PPRE2_DIV8 0x6
#define RCC_CFGR_PPRE2_DIV16 0x7
#define RCC_CFGR_PPRE2_MASK 0x7
#define RCC_CFGR_PPRE2_SHIFT 11
/* PPRE1: APB low-speed prescaler (APB1) */
#define RCC_CFGR_PPRE1_NODIV 0x0
#define RCC_CFGR_PPRE1_DIV2 0x4
#define RCC_CFGR_PPRE1_DIV4 0x5
#define RCC_CFGR_PPRE1_DIV8 0x6
#define RCC_CFGR_PPRE1_DIV16 0x7
#define RCC_CFGR_PPRE1_MASK 0x7
#define RCC_CFGR_PPRE1_SHIFT 8
/* HPRE: AHB prescaler */
#define RCC_CFGR_HPRE_NODIV 0x0
#define RCC_CFGR_HPRE_DIV2 0x8
#define RCC_CFGR_HPRE_DIV4 0x9
#define RCC_CFGR_HPRE_DIV8 0xa
#define RCC_CFGR_HPRE_DIV16 0xb
#define RCC_CFGR_HPRE_DIV64 0xc
#define RCC_CFGR_HPRE_DIV128 0xd
#define RCC_CFGR_HPRE_DIV256 0xe
#define RCC_CFGR_HPRE_DIV512 0xf
#define RCC_CFGR_HPRE_MASK 0xf
#define RCC_CFGR_HPRE_SHIFT 4
/* SWS: System clock switch status */
#define RCC_CFGR_SWS_MSI 0x0
#define RCC_CFGR_SWS_HSI16 0x1
#define RCC_CFGR_SWS_HSE 0x2
#define RCC_CFGR_SWS_PLL 0x3
#define RCC_CFGR_SWS_MASK 0x3
#define RCC_CFGR_SWS_SHIFT 2
/* SW: System clock switch */
#define RCC_CFGR_SW_MSI 0x0
#define RCC_CFGR_SW_HSI16 0x1
#define RCC_CFGR_SW_HSE 0x2
#define RCC_CFGR_SW_PLL 0x3
#define RCC_CFGR_SW_MASK 0x3
#define RCC_CFGR_SW_SHIFT 0
/* --- RCC_PLLCFGR - PLL Configuration Register */
#define RCC_PLLCFGR_PLLR_SHIFT 25
#define RCC_PLLCFGR_PLLR_MASK 0x3
#define RCC_PLLCFGR_PLLR_DIV2 0
#define RCC_PLLCFGR_PLLR_DIV4 1
#define RCC_PLLCFGR_PLLR_DIV6 2
#define RCC_PLLCFGR_PLLR_DIV8 3
#define RCC_PLLCFGR_PLLREN (1<<24)
#define RCC_PLLCFGR_PLLQ_SHIFT 21
#define RCC_PLLCFGR_PLLQ_MASK 0x3
#define RCC_PLLCFGR_PLLQ_DIV2 0
#define RCC_PLLCFGR_PLLQ_DIV4 1
#define RCC_PLLCFGR_PLLQ_DIV6 2
#define RCC_PLLCFGR_PLLQ_DIV8 3
#define RCC_PLLCFGR_PLLQEN (1 << 20)
/* Division for PLLSAI3CLK, 0 == 7, 1 == 17 */
#define RCC_PLLCFGR_PLLP (1 << 17)
#define RCC_PLLCFGR_PLLP_DIV7 0
#define RCC_PLLCFGR_PLLP_DIV17 RCC_PLLCFGR_PLLP
#define RCC_PLLPEN (1 << 16)
/** @defgroup rcc_pllcfgr_plln RCC_PLLCFGR PLLN values
@ingroup STM32L4xx_rcc_defines
* Allowed values 8 <= n <= 86
@{*/
#define RCC_PLLCFGR_PLLN_SHIFT 0x8
#define RCC_PLLCFGR_PLLN_MASK 0x7f
/*@}*/
/** @defgroup rcc_pllcfgr_pllm RCC_PLLCFGR PLLM values
@ingroup STM32L4xx_rcc_defines
* Allowed values 1 <= m <= 8
@{*/
#define RCC_PLLCFGR_PLLM_SHIFT 0x4
#define RCC_PLLCFGR_PLLM_MASK 0x7
#define RCC_PLLCFGR_PLLM(x) ((x)-1)
/*@}*/
#define RCC_PLLCFGR_PLLSRC_SHIFT 0
#define RCC_PLLCFGR_PLLSRC_MASK 0x3
#define RCC_PLLCFGR_PLLSRC_NONE 0
#define RCC_PLLCFGR_PLLSRC_MSI 1
#define RCC_PLLCFGR_PLLSRC_HSI16 2
#define RCC_PLLCFGR_PLLSRC_HSE 3
/* --- RCC_PLLSAI1CFGR ----------------------------------------------------- */
/* TODO */
/* --- RCC_PLLSAI2CFGR ----------------------------------------------------- */
/* TODO */
/* --- RCC_CIER - Clock interrupt enable register -------------------------- */
#define RCC_CIER_HSI48RDYIE (1 << 10)
#define RCC_CIER_LSE_CSSIE (1 << 9)
/* OSC ready interrupt enable bits */
#define RCC_CIER_PLLSAI2RDYIE (1 << 7)
#define RCC_CIER_PLLSAI1RDYIE (1 << 6)
#define RCC_CIER_PLLRDYIE (1 << 5)
#define RCC_CIER_HSERDYIE (1 << 4)
#define RCC_CIER_HSIRDYIE (1 << 3)
#define RCC_CIER_MSIRDYIE (1 << 2)
#define RCC_CIER_LSERDYIE (1 << 1)
#define RCC_CIER_LSIRDYIE (1 << 0)
/* --- RCC_CIFR - Clock interrupt flag register */
#define RCC_CIFR_HSI48RDYF (1 << 10)
#define RCC_CIFR_LSECSSF (1 << 9)
#define RCC_CIFR_CSSF (1 << 8)
#define RCC_CIFR_PLLSAI2RDYF (1 << 7)
#define RCC_CIFR_PLLSAI1RDYF (1 << 6)
#define RCC_CIFR_PLLRDYF (1 << 5)
#define RCC_CIFR_HSERDYF (1 << 4)
#define RCC_CIFR_HSIRDYF (1 << 3)
#define RCC_CIFR_MSIRDYF (1 << 2)
#define RCC_CIFR_LSERDYF (1 << 1)
#define RCC_CIFR_LSIRDYF (1 << 0)
/* --- RCC_CICR - Clock interrupt clear register */
#define RCC_CICR_HSI48RDYC (1 << 10)
#define RCC_CICR_LSECSSC (1 << 9)
#define RCC_CICR_CSSC (1 << 8)
#define RCC_CICR_PLLSAI2RDYC (1 << 7)
#define RCC_CICR_PLLSAI1RDYC (1 << 6)
#define RCC_CICR_PLLRDYC (1 << 5)
#define RCC_CICR_HSERDYC (1 << 4)
#define RCC_CICR_HSIRDYC (1 << 3)
#define RCC_CICR_MSIRDYC (1 << 2)
#define RCC_CICR_LSERDYC (1 << 1)
#define RCC_CICR_LSIRDYC (1 << 0)
/** @defgroup rcc_ahbrstr_rst RCC_AHBxRSTR reset values (full set)
@{*/
/** @defgroup rcc_ahb1rstr_rst RCC_AHB1RSTR reset values
@{*/
#define RCC_AHB1RSTR_TSCRST (1 << 16)
#define RCC_AHB1RSTR_CRCRST (1 << 12)
#define RCC_AHB1RSTR_FLASHRST (1 << 8)
#define RCC_AHB1RSTR_DMA2RST (1 << 1)
#define RCC_AHB1RSTR_DMA1RST (1 << 0)
/**@}*/
/** @defgroup rcc_ahb2rstr_rst RCC_AHB2RSTR reset values
@{*/
#define RCC_AHB2RSTR_RNGRST (1 << 18)
#define RCC_AHB2RSTR_AESRST (1 << 16)
#define RCC_AHB2RSTR_ADCRST (1 << 13)
#define RCC_AHB2RSTR_OTGFSRST (1 << 12)
#define RCC_AHB2RSTR_GPIOHRST (1 << 7)
#define RCC_AHB2RSTR_GPIOGRST (1 << 6)
#define RCC_AHB2RSTR_GPIOFRST (1 << 5)
#define RCC_AHB2RSTR_GPIOERST (1 << 4)
#define RCC_AHB2RSTR_GPIODRST (1 << 3)
#define RCC_AHB2RSTR_GPIOCRST (1 << 2)
#define RCC_AHB2RSTR_GPIOBRST (1 << 1)
#define RCC_AHB2RSTR_GPIOARST (1 << 0)
/**@}*/
/** @defgroup rcc_ahb3rstr_rst RCC_AHB3RSTR reset values
@{*/
#define RCC_AHB3RSTR_QSPIRST (1 << 8)
#define RCC_AHB3RSTR_FMCRST (1 << 0)
/**@}*/
/**@}*/
/** @defgroup rcc_apb1rstr_rst RCC_APB1RSTRx reset values (full set)
@{*/
/** @defgroup rcc_apb1rstr1_rst RCC_APB1RSTR1 reset values
@{*/
#define RCC_APB1RSTR1_LPTIM1RST (1 << 31)
#define RCC_APB1RSTR1_OPAMPRST (1 << 30)
#define RCC_APB1RSTR1_DAC1RST (1 << 29)
#define RCC_APB1RSTR1_PWRRST (1 << 28)
#define RCC_APB1RSTR1_CAN1RST (1 << 25)
#define RCC_APB1RSTR1_I2C3RST (1 << 23)
#define RCC_APB1RSTR1_I2C2RST (1 << 22)
#define RCC_APB1RSTR1_I2C1RST (1 << 21)
#define RCC_APB1RSTR1_UART5RST (1 << 20)
#define RCC_APB1RSTR1_UART4RST (1 << 19)
#define RCC_APB1RSTR1_USART3RST (1 << 18)
#define RCC_APB1RSTR1_USART2RST (1 << 17)
#define RCC_APB1RSTR1_SPI3RST (1 << 15)
#define RCC_APB1RSTR1_SPI2RST (1 << 14)
#define RCC_APB1RSTR1_LCDRST (1 << 9)
#define RCC_APB1RSTR1_TIM7RST (1 << 5)
#define RCC_APB1RSTR1_TIM6RST (1 << 4)
#define RCC_APB1RSTR1_TIM5RST (1 << 3)
#define RCC_APB1RSTR1_TIM4RST (1 << 2)
#define RCC_APB1RSTR1_TIM3RST (1 << 1)
#define RCC_APB1RSTR1_TIM2RST (1 << 0)
/**@}*/
/** @defgroup rcc_apb1rstr2_rst RCC_APB1RSTR2 reset values
@{*/
#define RCC_APB1RSTR2_LPTIM2RST (1 << 5)
#define RCC_APB1RSTR2_SWPMI1RST (1 << 2)
#define RCC_APB1RSTR2_LPUART1RST (1 << 0)
/**@}*/
/**@}*/
/** @defgroup rcc_apb2rstr_rst RCC_APB2RSTR reset values
@{*/
#define RCC_APB2RSTR_DFSDMRST (1 << 24)
#define RCC_APB2RSTR_SAI2RST (1 << 22)
#define RCC_APB2RSTR_SAI1RST (1 << 21)
#define RCC_APB2RSTR_TIM17RST (1 << 18)
#define RCC_APB2RSTR_TIM16RST (1 << 17)
#define RCC_APB2RSTR_TIM15RST (1 << 16)
#define RCC_APB2RSTR_USART1RST (1 << 14)
#define RCC_APB2RSTR_TIM8RST (1 << 13)
#define RCC_APB2RSTR_SPI1RST (1 << 12)
#define RCC_APB2RSTR_TIM1RST (1 << 11)
#define RCC_APB2RSTR_SDMMC1RST (1 << 10)
/* Suspect FW_RST at bit 7 to match APB2_ENR ... */
#define RCC_APB2RSTR_SYSCFGRST (1 << 0)
/**@}*/
/* --- RCC_AHB1ENR values --------------------------------------------------- */
/** @defgroup rcc_ahbenr_en RCC_AHBxENR enable values (full set)
*@{*/
/** @defgroup rcc_ahb1enr_en RCC_AHB1ENR enable values
@ingroup STM32L4xx_rcc_defines
@{*/
#define RCC_AHB1ENR_TSCEN (1 << 16)
#define RCC_AHB1ENR_CRCEN (1 << 12)
#define RCC_AHB1ENR_FLASHEN (1 << 8)
#define RCC_AHB1ENR_DMA2EN (1 << 1)
#define RCC_AHB1ENR_DMA1EN (1 << 0)
/*@}*/
/* --- RCC_AHB2ENR values --------------------------------------------------- */
/** @defgroup rcc_ahb2enr_en RCC_AHB2ENR enable values
@ingroup STM32L4xx_rcc_defines
@{*/
#define RCC_AHB2ENR_RNGEN (1 << 18)
#define RCC_AHB2ENR_AESEN (1 << 16)
#define RCC_AHB2ENR_ADCEN (1 << 13)
#define RCC_AHB2ENR_OTGFSEN (1 << 12)
#define RCC_AHB2ENR_GPIOHEN (1 << 7)
#define RCC_AHB2ENR_GPIOGEN (1 << 6)
#define RCC_AHB2ENR_GPIOFEN (1 << 5)
#define RCC_AHB2ENR_GPIOEEN (1 << 4)
#define RCC_AHB2ENR_GPIODEN (1 << 3)
#define RCC_AHB2ENR_GPIOCEN (1 << 2)
#define RCC_AHB2ENR_GPIOBEN (1 << 1)
#define RCC_AHB2ENR_GPIOAEN (1 << 0)
/*@}*/
/* --- RCC_AHB3ENR values --------------------------------------------------- */
/** @defgroup rcc_ahb3enr_en RCC_AHB3ENR enable values
@ingroup STM32L4xx_rcc_defines
@{*/
#define RCC_AHB3ENR_QSPIEN (1 << 8)
#define RCC_AHB3ENR_FMCEN (1 << 0)
/*@}*/
/**@}*/
/* --- RCC_APB1ENR1 values -------------------------------------------------- */
/** @defgroup rcc_apb1enr_en RCC_APB1ENRx enable values (full set)
*@{*/
/** @defgroup rcc_apb1enr1_en RCC_APB1ENR1 enable values
@ingroup STM32L4xx_rcc_defines
@{*/
#define RCC_APB1ENR1_LPTIM1EN (1 << 31)
#define RCC_APB1ENR1_OPAMPEN (1 << 30)
#define RCC_APB1ENR1_DAC1EN (1 << 29)
#define RCC_APB1ENR1_PWREN (1 << 28)
#define RCC_APB1ENR1_CAN1EN (1 << 25)
#define RCC_APB1ENR1_I2C3EN (1 << 23)
#define RCC_APB1ENR1_I2C2EN (1 << 22)
#define RCC_APB1ENR1_I2C1EN (1 << 21)
#define RCC_APB1ENR1_UART5EN (1 << 20)
#define RCC_APB1ENR1_UART4EN (1 << 19)
#define RCC_APB1ENR1_USART3EN (1 << 18)
#define RCC_APB1ENR1_USART2EN (1 << 17)
#define RCC_APB1ENR1_SPI3EN (1 << 15)
#define RCC_APB1ENR1_SPI2EN (1 << 14)
#define RCC_APB1ENR1_LCDEN (1 << 9)
#define RCC_APB1ENR1_TIM7EN (1 << 5)
#define RCC_APB1ENR1_TIM6EN (1 << 4)
#define RCC_APB1ENR1_TIM5EN (1 << 3)
#define RCC_APB1ENR1_TIM4EN (1 << 2)
#define RCC_APB1ENR1_TIM3EN (1 << 1)
#define RCC_APB1ENR1_TIM2EN (1 << 0)
/*@}*/
/* --- RCC_APB1ENR2 values -------------------------------------------------- */
/** @defgroup rcc_apb1enr2_en RCC_APB1ENR2 enable values
@ingroup STM32L4xx_rcc_defines
@{*/
#define RCC_APB1ENR2_LPTIM2EN (1 << 5)
#define RCC_APB1ENR2_SWPMI1EN (1 << 2)
#define RCC_APB1ENR2_LPUART1EN (1 << 0)
/*@}*/
/*@}*/
/* --- RCC_APB2ENR values -------------------------------------------------- */
/** @defgroup rcc_apb2enr_en RCC_APB2ENR enable values
@ingroup STM32L4xx_rcc_defines
@{*/
#define RCC_APB2ENR_DFSDMEN (1 << 24)
#define RCC_APB2ENR_SAI2EN (1 << 22)
#define RCC_APB2ENR_SAI1EN (1 << 21)
#define RCC_APB2ENR_TIM17EN (1 << 18)
#define RCC_APB2ENR_TIM16EN (1 << 17)
#define RCC_APB2ENR_TIM15EN (1 << 16)
#define RCC_APB2ENR_USART1EN (1 << 14)
#define RCC_APB2ENR_TIM8EN (1 << 13)
#define RCC_APB2ENR_SPI1EN (1 << 12)
#define RCC_APB2ENR_TIM1EN (1 << 11)
#define RCC_APB2ENR_SDMMC1EN (1 << 10)
#define RCC_APB2ENR_FWEN (1 << 7)
#define RCC_APB2ENR_SYSCFGEN (1 << 0)
/*@}*/
/* --- RCC_AHB1SMENR - AHB1 periph clock in sleep mode --------------------- */
#define RCC_AHB1SMENR_TSCSMEN (1 << 16)
#define RCC_AHB1SMENR_CRCSMEN (1 << 12)
#define RCC_AHB1SMENR_SRAM1SMEN (1 << 9)
#define RCC_AHB1SMENR_FLASHSMEN (1 << 8)
#define RCC_AHB1SMENR_DMA2SMEN (1 << 1)
#define RCC_AHB1SMENR_DMA1SMEN (1 << 0)
/* --- RCC_AHB2SMENR - AHB2 periph clock in sleep mode --------------------- */
#define RCC_AHB2SMENR_RNGSMEN (1 << 18)
#define RCC_AHB2SMENR_AESSMEN (1 << 16)
#define RCC_AHB2SMENR_ADCSMEN (1 << 13)
#define RCC_AHB2SMENR_OTGFSSMEN (1 << 12)
#define RCC_AHB2SMENR_SRAM2SMEN (1 << 9)
#define RCC_AHB2SMENR_GPIOHSMEN (1 << 7)
#define RCC_AHB2SMENR_GPIOGSMEN (1 << 6)
#define RCC_AHB2SMENR_GPIOFSMEN (1 << 5)
#define RCC_AHB2SMENR_GPIOESMEN (1 << 4)
#define RCC_AHB2SMENR_GPIODSMEN (1 << 3)
#define RCC_AHB2SMENR_GPIOCSMEN (1 << 2)
#define RCC_AHB2SMENR_GPIOBSMEN (1 << 1)
#define RCC_AHB2SMENR_GPIOASMEN (1 << 0)
/* --- RCC_AHB3SMENR - AHB3 periph clock in sleep mode --------------------- */
#define RCC_AHB3SMENR_QSPISMEN (1 << 8)
#define RCC_AHB3SMENR_FMCSMEN (1 << 0)
/* --- RCC_APB1SMENR1 - APB1 periph clock in sleep mode -------------------- */
#define RCC_APB1SMENR1_LPTIM1SMEN (1 << 31)
#define RCC_APB1SMENR1_OPAMPSMEN (1 << 30)
#define RCC_APB1SMENR1_DAC1SMEN (1 << 29)
#define RCC_APB1SMENR1_PWRSMEN (1 << 28)
#define RCC_APB1SMENR1_CAN1SMEN (1 << 25)
#define RCC_APB1SMENR1_I2C3SMEN (1 << 23)
#define RCC_APB1SMENR1_I2C2SMEN (1 << 22)
#define RCC_APB1SMENR1_I2C1SMEN (1 << 21)
#define RCC_APB1SMENR1_UART5SMEN (1 << 20)
#define RCC_APB1SMENR1_UART4SMEN (1 << 19)
#define RCC_APB1SMENR1_USART3SMEN (1 << 18)
#define RCC_APB1SMENR1_USART2SMEN (1 << 17)
#define RCC_APB1SMENR1_SPI3SMEN (1 << 15)
#define RCC_APB1SMENR1_SPI2SMEN (1 << 14)
#define RCC_APB1SMENR1_WWDGSMEN (1 << 11)
#define RCC_APB1SMENR1_LCDSMEN (1 << 9)
#define RCC_APB1SMENR1_TIM7SMEN (1 << 5)
#define RCC_APB1SMENR1_TIM6SMEN (1 << 4)
#define RCC_APB1SMENR1_TIM5SMEN (1 << 3)
#define RCC_APB1SMENR1_TIM4SMEN (1 << 2)
#define RCC_APB1SMENR1_TIM3SMEN (1 << 1)
#define RCC_APB1SMENR1_TIM2SMEN (1 << 0)
/* --- RCC_APB1SMENR2 - APB1 periph clock in sleep mode -------------------- */
#define RCC_APB1SMENR2_LPTIM2SMEN (1 << 5)
#define RCC_APB1SMENR2_SWPMI1SMEN (1 << 2)
#define RCC_APB1SMENR2_LPUART1SMEN (1 << 0)
/* --- RCC_APB2SMENR - APB2 periph clock in sleep mode --------------------- */
#define RCC_APB2SMENR_DFSDMSMEN (1 << 24)
#define RCC_APB2SMENR_SAI2SMEN (1 << 22)
#define RCC_APB2SMENR_SAI1SMEN (1 << 21)
#define RCC_APB2SMENR_TIM17SMEN (1 << 18)
#define RCC_APB2SMENR_TIM16SMEN (1 << 17)
#define RCC_APB2SMENR_TIM15SMEN (1 << 16)
#define RCC_APB2SMENR_USART1SMEN (1 << 14)
#define RCC_APB2SMENR_TIM8SMEN (1 << 13)
#define RCC_APB2SMENR_SPI1SMEN (1 << 12)
#define RCC_APB2SMENR_TIM1SMEN (1 << 11)
#define RCC_APB2SMENR_SDMMC1SMEN (1 << 10)
#define RCC_APB2SMENR_SYSCFGSMEN (1 << 0)
/* --- RCC_CCIPR - Peripherals independent clock config register ----------- */
#define RCC_CCIPR_DFSDMSEL (1 << 31)
#define RCC_CCIPR_SWPMI1SEL (1 << 30)
#define RCC_CCIPR_ADCSEL_NONE 0
#define RCC_CCIPR_ADCSEL_PLLSAI1R 1
#define RCC_CCIPR_ADCSEL_PLLSAI2R 2
#define RCC_CCIPR_ADCSEL_SYS 3
#define RCC_CCIPR_ADCSEL_MASK 0x3
#define RCC_CCIPR_ADCSEL_SHIFT 28
#define RCC_CCIPR_CLK48SEL_HSI48 0
#define RCC_CCIPR_CLK48SEL_PLLSAI1Q 1
#define RCC_CCIPR_CLK48SEL_PLL 2
#define RCC_CCIPR_CLK48SEL_MSI 3
#define RCC_CCIPR_CLK48SEL_MASK 0x3
#define RCC_CCIPR_CLK48SEL_SHIFT 26
#define RCC_CCIPR_SAIxSEL_PLLSAI1P 0
#define RCC_CCIPR_SAIxSEL_PLLSAI2P 1
#define RCC_CCIPR_SAIxSEL_PLL 2
#define RCC_CCIPR_SAIxSEL_EXT 3
#define RCC_CCIPR_SAIxSEL_MASK 0x3
#define RCC_CCIPR_SAI2SEL_SHIFT 24
#define RCC_CCIPR_SAI1SEL_SHIFT 22
#define RCC_CCIPR_LPTIMxSEL_APB 0
#define RCC_CCIPR_LPTIMxSEL_LSI 1
#define RCC_CCIPR_LPTIMxSEL_HSI16 2
#define RCC_CCIPR_LPTIMxSEL_LSE 3
#define RCC_CCIPR_LPTIMxSEL_MASK 0x3
#define RCC_CCIPR_LPTIM2SEL_SHIFT 20
#define RCC_CCIPR_LPTIM1SEL_SHIFT 18
#define RCC_CCIPR_I2CxSEL_APB 0
#define RCC_CCIPR_I2CxSEL_SYS 1
#define RCC_CCIPR_I2CxSEL_HSI16 2
#define RCC_CCIPR_I2CxSEL_MASK 0x3
#define RCC_CCIPR_I2C3SEL_SHIFT 16
#define RCC_CCIPR_I2C2SEL_SHIFT 14
#define RCC_CCIPR_I2C1SEL_SHIFT 12
#define RCC_CCIPR_LPUART1SEL_APB 0
#define RCC_CCIPR_LPUART1SEL_SYS 1
#define RCC_CCIPR_LPUART1SEL_HSI16 2
#define RCC_CCIPR_LPUART1SEL_LSE 3
#define RCC_CCIPR_LPUART1SEL_MASK 0x3
#define RCC_CCIPR_LPUART1SEL_SHIFT 10
#define RCC_CCIPR_USARTxSEL_APB 0
#define RCC_CCIPR_USARTxSEL_SYS 1
#define RCC_CCIPR_USARTxSEL_HSI16 2
#define RCC_CCIPR_USARTxSEL_LSE 3
#define RCC_CCIPR_USARTxSEL_MASK 0x3
#define RCC_CCIPR_UARTxSEL_APB RCC_CCIPR_USARTxSEL_APB
#define RCC_CCIPR_UARTxSEL_SYS RCC_CCIPR_USARTxSEL_SYS
#define RCC_CCIPR_UARTxSEL_HSI16 RCC_CCIPR_USARTxSEL_HSI16
#define RCC_CCIPR_UARTxSEL_LSE RCC_CCIPR_USARTxSEL_LSE
#define RCC_CCIPR_UARTxSEL_MASK RCC_CCIPR_USARTxSEL_MASK
#define RCC_CCIPR_UART5SEL_SHIFT 8
#define RCC_CCIPR_UART4SEL_SHIFT 6
#define RCC_CCIPR_USART3SEL_SHIFT 4
#define RCC_CCIPR_USART2SEL_SHIFT 2
#define RCC_CCIPR_USART1SEL_SHIFT 0
#define RCC_CCIPR_USART1SEL_APB 0
#define RCC_CCIPR_USART1SEL_SYS 1
#define RCC_CCIPR_USART1SEL_HSI16 2
#define RCC_CCIPR_USART1SEL_LSE 3
#define RCC_CCIPR_USART1SEL_SHIFT 0
#define RCC_CCIPR_USART1SEL_MASK 0x3
/* --- RCC_BDCR - Backup domain control register --------------------------- */
#define RCC_BDCR_LSCOSEL (1 << 25)
#define RCC_BDCR_LSCOEN (1 << 24)
#define RCC_BDCR_BDRST (1 << 16)
#define RCC_BDCR_RTCEN (1 << 15)
#define RCC_BDCR_RTCSEL_NONE 0
#define RCC_BDCR_RTCSEL_LSE 1
#define RCC_BDCR_RTCSEL_LSI 2
#define RCC_BDCR_RTCSEL_HSEDIV32 3
#define RCC_BDCR_RTCSEL_SHIFT 8
#define RCC_BDCR_RTCSEL_MASK 0x3
#define RCC_BDCR_LSESYSDIS (1 << 7)
#define RCC_BDCR_LSECSSD (1 << 6)
#define RCC_BDCR_LSECSSON (1 << 5)
#define RCC_BDCR_LSEDRV_LOW 0
#define RCC_BDCR_LSEDRV_MEDLOW 1
#define RCC_BDCR_LSEDRV_MEDHIGH 2
#define RCC_BDCR_LSEDRV_HIGH 3
#define RCC_BDCR_LSEDRV_SHIFT 3
#define RCC_BDCR_LSEDRV_MASK 0x3
#define RCC_BDCR_LSEBYP (1 << 2)
#define RCC_BDCR_LSERDY (1 << 1)
#define RCC_BDCR_LSEON (1 << 0)
/* --- RCC_CSR - Control/Status register ----------------------------------- */
#define RCC_CSR_LPWRRSTF (1 << 31)
#define RCC_CSR_WWDGRSTF (1 << 30)
#define RCC_CSR_IWDGRSTF (1 << 29)
#define RCC_CSR_SFTRSTF (1 << 28)
#define RCC_CSR_BORRSTF (1 << 27)
#define RCC_CSR_PINRSTF (1 << 26)
#define RCC_CSR_OBLRSTF (1 << 25)
#define RCC_CSR_FWRSTF (1 << 24)
#define RCC_CSR_RMVF (1 << 23)
#define RCC_CSR_RESET_FLAGS (RCC_CSR_LPWRRSTF | RCC_CSR_WWDGRSTF |\
RCC_CSR_IWDGRSTF | RCC_CSR_SFTRSTF | RCC_CSR_BORRSTF |\
RCC_CSR_PINRSTF | RCC_CSR_OBLRSTF | RCC_CSR_FWRSTF)
/** @defgroup rcc_csr_msirange MSI Range after standby values
@brief Range of the MSI oscillator after returning from standby
@ingroup STM32L4xx_rcc_defines
@sa rcc_cr_msirange
@{*/
#define RCC_CSR_MSIRANGE_MASK 0xf
#define RCC_CSR_MSIRANGE_SHIFT 8
#define RCC_CSR_MSIRANGE_1MHZ 4
#define RCC_CSR_MSIRANGE_2MHZ 5
#define RCC_CSR_MSIRANGE_4MHZ 6
#define RCC_CSR_MSIRANGE_8MHZ 7
/*@}*/
#define RCC_CSR_LSIRDY (1 << 1)
#define RCC_CSR_LSION (1 << 0)
/* --- Variable definitions ------------------------------------------------ */
extern uint32_t rcc_ahb_frequency;
extern uint32_t rcc_apb1_frequency;
extern uint32_t rcc_apb2_frequency;
/* --- Function prototypes ------------------------------------------------- */
// Note: RCC_HSI48 not available on all STM32L4 devices
enum rcc_osc {
RCC_PLL, RCC_HSE, RCC_HSI16, RCC_MSI, RCC_LSE, RCC_LSI, RCC_HSI48
};
#define _REG_BIT(base, bit) (((base) << 5) + (bit))
enum rcc_periph_clken {
/* AHB1 peripherals */
RCC_TSC = _REG_BIT(RCC_AHB1ENR_OFFSET, 16),
RCC_CRC = _REG_BIT(RCC_AHB1ENR_OFFSET, 12),
RCC_FLASH = _REG_BIT(RCC_AHB1ENR_OFFSET, 8),
RCC_DMA2 = _REG_BIT(RCC_AHB1ENR_OFFSET, 1),
RCC_DMA1 = _REG_BIT(RCC_AHB1ENR_OFFSET, 0),
/* AHB2 peripherals */
RCC_RNG = _REG_BIT(RCC_AHB2ENR_OFFSET, 18),
RCC_AES = _REG_BIT(RCC_AHB2ENR_OFFSET, 16),
RCC_ADC = _REG_BIT(RCC_AHB2ENR_OFFSET, 13),
RCC_ADC1 = _REG_BIT(RCC_AHB2ENR_OFFSET, 13), /* Compatibility */
RCC_OTGFS = _REG_BIT(RCC_AHB2ENR_OFFSET, 12),
RCC_GPIOH = _REG_BIT(RCC_AHB2ENR_OFFSET, 7),
RCC_GPIOG = _REG_BIT(RCC_AHB2ENR_OFFSET, 6),
RCC_GPIOF = _REG_BIT(RCC_AHB2ENR_OFFSET, 5),
RCC_GPIOE = _REG_BIT(RCC_AHB2ENR_OFFSET, 4),
RCC_GPIOD = _REG_BIT(RCC_AHB2ENR_OFFSET, 3),
RCC_GPIOC = _REG_BIT(RCC_AHB2ENR_OFFSET, 2),
RCC_GPIOB = _REG_BIT(RCC_AHB2ENR_OFFSET, 1),
RCC_GPIOA = _REG_BIT(RCC_AHB2ENR_OFFSET, 0),
/* AHB3 peripherals */
RCC_QSPI = _REG_BIT(RCC_AHB3ENR_OFFSET, 8),
RCC_FMC = _REG_BIT(RCC_AHB3ENR_OFFSET, 0),
/* APB1 peripherals */
RCC_LPTIM1 = _REG_BIT(RCC_APB1ENR1_OFFSET, 31),
RCC_OPAMP = _REG_BIT(RCC_APB1ENR1_OFFSET, 30),
RCC_DAC1 = _REG_BIT(RCC_APB1ENR1_OFFSET, 29),
RCC_PWR = _REG_BIT(RCC_APB1ENR1_OFFSET, 28),
RCC_USB = _REG_BIT(RCC_APB1ENR1_OFFSET, 26),
RCC_CAN1 = _REG_BIT(RCC_APB1ENR1_OFFSET, 25),
RCC_CRS = _REG_BIT(RCC_APB1ENR1_OFFSET, 24),
RCC_I2C3 = _REG_BIT(RCC_APB1ENR1_OFFSET, 23),
RCC_I2C2 = _REG_BIT(RCC_APB1ENR1_OFFSET, 22),
RCC_I2C1 = _REG_BIT(RCC_APB1ENR1_OFFSET, 21),
RCC_UART5 = _REG_BIT(RCC_APB1ENR1_OFFSET, 20),
RCC_UART4 = _REG_BIT(RCC_APB1ENR1_OFFSET, 19),
RCC_USART3 = _REG_BIT(RCC_APB1ENR1_OFFSET, 18),
RCC_USART2 = _REG_BIT(RCC_APB1ENR1_OFFSET, 17),
RCC_SPI3 = _REG_BIT(RCC_APB1ENR1_OFFSET, 15),
RCC_SPI2 = _REG_BIT(RCC_APB1ENR1_OFFSET, 14),
RCC_LCD = _REG_BIT(RCC_APB1ENR1_OFFSET, 9),
RCC_TIM7 = _REG_BIT(RCC_APB1ENR1_OFFSET, 5),
RCC_TIM6 = _REG_BIT(RCC_APB1ENR1_OFFSET, 4),
RCC_TIM5 = _REG_BIT(RCC_APB1ENR1_OFFSET, 3),
RCC_TIM4 = _REG_BIT(RCC_APB1ENR1_OFFSET, 2),
RCC_TIM3 = _REG_BIT(RCC_APB1ENR1_OFFSET, 1),
RCC_TIM2 = _REG_BIT(RCC_APB1ENR1_OFFSET, 0),
/* apb1-2 */
RCC_LPTIM2 = _REG_BIT(RCC_APB1ENR2_OFFSET, 5),
RCC_SWPMI1 = _REG_BIT(RCC_APB1ENR2_OFFSET, 2),
RCC_LPUART1 = _REG_BIT(RCC_APB1ENR2_OFFSET, 0),
/* APB2 peripherals */
RCC_DFSDM = _REG_BIT(RCC_APB2ENR_OFFSET, 24),
RCC_SAI2 = _REG_BIT(RCC_APB2ENR_OFFSET, 22),
RCC_SAI1 = _REG_BIT(RCC_APB2ENR_OFFSET, 21),
RCC_TIM17 = _REG_BIT(RCC_APB2ENR_OFFSET, 18),
RCC_TIM16 = _REG_BIT(RCC_APB2ENR_OFFSET, 17),
RCC_TIM15 = _REG_BIT(RCC_APB2ENR_OFFSET, 16),
RCC_USART1 = _REG_BIT(RCC_APB2ENR_OFFSET, 14),
RCC_TIM8 = _REG_BIT(RCC_APB2ENR_OFFSET, 13),
RCC_SPI1 = _REG_BIT(RCC_APB2ENR_OFFSET, 12),
RCC_TIM1 = _REG_BIT(RCC_APB2ENR_OFFSET, 11),
RCC_SDMMC1 = _REG_BIT(RCC_APB2ENR_OFFSET, 10),
RCC_FW = _REG_BIT(RCC_APB2ENR_OFFSET, 7),
RCC_SYSCFG = _REG_BIT(RCC_APB2ENR_OFFSET, 0),
/* AHB1 peripherals in sleep mode */
SCC_TSC = _REG_BIT(RCC_AHB1SMENR_OFFSET, 16),
SCC_CRC = _REG_BIT(RCC_AHB1SMENR_OFFSET, 12),
SCC_SRAM1 = _REG_BIT(RCC_AHB1SMENR_OFFSET, 9),
SCC_FLASH = _REG_BIT(RCC_AHB1SMENR_OFFSET, 8),
SCC_DMA2 = _REG_BIT(RCC_AHB1SMENR_OFFSET, 1),
SCC_DMA1 = _REG_BIT(RCC_AHB1SMENR_OFFSET, 0),
/* AHB2 peripherals in sleep mode */
SCC_RNG = _REG_BIT(RCC_AHB2SMENR_OFFSET, 18),
SCC_AES = _REG_BIT(RCC_AHB2SMENR_OFFSET, 16),
SCC_ADC = _REG_BIT(RCC_AHB2SMENR_OFFSET, 13),
SCC_ADC1 = _REG_BIT(RCC_AHB2SMENR_OFFSET, 13), /* Compatibility */
SCC_OTGFS = _REG_BIT(RCC_AHB2SMENR_OFFSET, 12),
SCC_SRAM2 = _REG_BIT(RCC_AHB2SMENR_OFFSET, 9),
SCC_GPIOH = _REG_BIT(RCC_AHB2SMENR_OFFSET, 7),
SCC_GPIOG = _REG_BIT(RCC_AHB2SMENR_OFFSET, 6),
SCC_GPIOF = _REG_BIT(RCC_AHB2SMENR_OFFSET, 5),
SCC_GPIOE = _REG_BIT(RCC_AHB2SMENR_OFFSET, 4),
SCC_GPIOD = _REG_BIT(RCC_AHB2SMENR_OFFSET, 3),
SCC_GPIOC = _REG_BIT(RCC_AHB2SMENR_OFFSET, 2),
SCC_GPIOB = _REG_BIT(RCC_AHB2SMENR_OFFSET, 1),
SCC_GPIOA = _REG_BIT(RCC_AHB2SMENR_OFFSET, 0),
/* AHB3 peripherals in sleep mode */
SCC_QSPI = _REG_BIT(RCC_AHB3SMENR_OFFSET, 8),
SCC_FMC = _REG_BIT(RCC_AHB3SMENR_OFFSET, 0),
/* APB1 peripherals in sleep mode */
SCC_LPTIM1 = _REG_BIT(RCC_APB1ENR1_OFFSET, 31),
SCC_OPAMP = _REG_BIT(RCC_APB1ENR1_OFFSET, 30),
SCC_DAC1 = _REG_BIT(RCC_APB1ENR1_OFFSET, 29),
SCC_PWR = _REG_BIT(RCC_APB1ENR1_OFFSET, 28),
SCC_CAN1 = _REG_BIT(RCC_APB1ENR1_OFFSET, 25),
SCC_I2C3 = _REG_BIT(RCC_APB1ENR1_OFFSET, 23),
SCC_I2C2 = _REG_BIT(RCC_APB1ENR1_OFFSET, 22),
SCC_I2C1 = _REG_BIT(RCC_APB1ENR1_OFFSET, 21),
SCC_UART5 = _REG_BIT(RCC_APB1ENR1_OFFSET, 20),
SCC_UART4 = _REG_BIT(RCC_APB1ENR1_OFFSET, 19),
SCC_USART3 = _REG_BIT(RCC_APB1ENR1_OFFSET, 18),
SCC_USART2 = _REG_BIT(RCC_APB1ENR1_OFFSET, 17),
SCC_SPI3 = _REG_BIT(RCC_APB1ENR1_OFFSET, 15),
SCC_SPI2 = _REG_BIT(RCC_APB1ENR1_OFFSET, 14),
SCC_WWDG = _REG_BIT(RCC_APB1ENR1_OFFSET, 11),
SCC_LCD = _REG_BIT(RCC_APB1ENR1_OFFSET, 9),
SCC_TIM7 = _REG_BIT(RCC_APB1ENR1_OFFSET, 5),
SCC_TIM6 = _REG_BIT(RCC_APB1ENR1_OFFSET, 4),
SCC_TIM5 = _REG_BIT(RCC_APB1ENR1_OFFSET, 3),
SCC_TIM4 = _REG_BIT(RCC_APB1ENR1_OFFSET, 2),
SCC_TIM3 = _REG_BIT(RCC_APB1ENR1_OFFSET, 1),
SCC_TIM2 = _REG_BIT(RCC_APB1ENR1_OFFSET, 0),
/* apb1-2 */
SCC_LPTIM2 = _REG_BIT(RCC_APB1ENR2_OFFSET, 5),
SCC_SWPMI1 = _REG_BIT(RCC_APB1ENR2_OFFSET, 2),
SCC_LPUART1 = _REG_BIT(RCC_APB1ENR2_OFFSET, 0),
/* APB2 peripherals in sleep mode */
SCC_DFSDM = _REG_BIT(RCC_APB2ENR_OFFSET, 24),
SCC_SAI2 = _REG_BIT(RCC_APB2ENR_OFFSET, 22),
SCC_SAI1 = _REG_BIT(RCC_APB2ENR_OFFSET, 21),
SCC_TIM17 = _REG_BIT(RCC_APB2ENR_OFFSET, 18),
SCC_TIM16 = _REG_BIT(RCC_APB2ENR_OFFSET, 17),
SCC_TIM15 = _REG_BIT(RCC_APB2ENR_OFFSET, 16),
SCC_USART1 = _REG_BIT(RCC_APB2ENR_OFFSET, 14),
SCC_TIM8 = _REG_BIT(RCC_APB2ENR_OFFSET, 13),
SCC_SPI1 = _REG_BIT(RCC_APB2ENR_OFFSET, 12),
SCC_TIM1 = _REG_BIT(RCC_APB2ENR_OFFSET, 11),
SCC_SDMMC1 = _REG_BIT(RCC_APB2ENR_OFFSET, 10),
SCC_SYSCFG = _REG_BIT(RCC_APB2ENR_OFFSET, 0),
};
enum rcc_periph_rst {
/* AHB1 peripherals */
RST_TSC = _REG_BIT(RCC_AHB1RSTR_OFFSET, 16),
RST_CRC = _REG_BIT(RCC_AHB1RSTR_OFFSET, 12),
RST_FLASH = _REG_BIT(RCC_AHB1RSTR_OFFSET, 8),
RST_DMA2 = _REG_BIT(RCC_AHB1RSTR_OFFSET, 1),
RST_DMA1 = _REG_BIT(RCC_AHB1RSTR_OFFSET, 0),
/* AHB2 peripherals */
RST_RNG = _REG_BIT(RCC_AHB2RSTR_OFFSET, 18),
RST_AES = _REG_BIT(RCC_AHB2RSTR_OFFSET, 16),
RST_ADC = _REG_BIT(RCC_AHB2RSTR_OFFSET, 13),
RST_ADC1 = _REG_BIT(RCC_AHB2RSTR_OFFSET, 13), /* Compatibility */
RST_OTGFS = _REG_BIT(RCC_AHB2RSTR_OFFSET, 12),
RST_GPIOH = _REG_BIT(RCC_AHB2RSTR_OFFSET, 7),
RST_GPIOG = _REG_BIT(RCC_AHB2RSTR_OFFSET, 6),
RST_GPIOF = _REG_BIT(RCC_AHB2RSTR_OFFSET, 5),
RST_GPIOE = _REG_BIT(RCC_AHB2RSTR_OFFSET, 4),
RST_GPIOD = _REG_BIT(RCC_AHB2RSTR_OFFSET, 3),
RST_GPIOC = _REG_BIT(RCC_AHB2RSTR_OFFSET, 2),
RST_GPIOB = _REG_BIT(RCC_AHB2RSTR_OFFSET, 1),
RST_GPIOA = _REG_BIT(RCC_AHB2RSTR_OFFSET, 0),
/* AHB3 peripherals */
RST_QSPI = _REG_BIT(RCC_AHB3RSTR_OFFSET, 8),
RST_FMC = _REG_BIT(RCC_AHB3RSTR_OFFSET, 0),
/* APB1 peripherals */
RST_LPTIM1 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 31),
RST_OPAMP = _REG_BIT(RCC_APB1RSTR1_OFFSET, 30),
RST_DAC1 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 29),
RST_PWR = _REG_BIT(RCC_APB1RSTR1_OFFSET, 28),
RST_USB = _REG_BIT(RCC_APB1RSTR1_OFFSET, 26),
RST_CAN1 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 25),
RST_CRS = _REG_BIT(RCC_APB1RSTR1_OFFSET, 24),
RST_I2C3 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 23),
RST_I2C2 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 22),
RST_I2C1 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 21),
RST_UART5 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 20),
RST_UART4 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 19),
RST_USART3 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 18),
RST_USART2 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 17),
RST_SPI3 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 15),
RST_SPI2 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 14),
RST_LCD = _REG_BIT(RCC_APB1RSTR1_OFFSET, 9),
RST_TIM7 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 5),
RST_TIM6 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 4),
RST_TIM5 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 3),
RST_TIM4 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 2),
RST_TIM3 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 1),
RST_TIM2 = _REG_BIT(RCC_APB1RSTR1_OFFSET, 0),
/* apb1-2 */
RST_LPTIM2 = _REG_BIT(RCC_APB1RSTR2_OFFSET, 5),
RST_SWPMI1 = _REG_BIT(RCC_APB1RSTR2_OFFSET, 2),
RST_LPUART1 = _REG_BIT(RCC_APB1RSTR2_OFFSET, 0),
/* APB2 peripherals */
RST_DFSDM = _REG_BIT(RCC_APB2RSTR_OFFSET, 24),
RST_SAI2 = _REG_BIT(RCC_APB2RSTR_OFFSET, 22),
RST_SAI1 = _REG_BIT(RCC_APB2RSTR_OFFSET, 21),
RST_TIM17 = _REG_BIT(RCC_APB2RSTR_OFFSET, 18),
RST_TIM16 = _REG_BIT(RCC_APB2RSTR_OFFSET, 17),
RST_TIM15 = _REG_BIT(RCC_APB2RSTR_OFFSET, 16),
RST_USART1 = _REG_BIT(RCC_APB2RSTR_OFFSET, 14),
RST_TIM8 = _REG_BIT(RCC_APB2RSTR_OFFSET, 13),
RST_SPI1 = _REG_BIT(RCC_APB2RSTR_OFFSET, 12),
RST_TIM1 = _REG_BIT(RCC_APB2RSTR_OFFSET, 11),
RST_SDMMC1 = _REG_BIT(RCC_APB2RSTR_OFFSET, 10),
RST_SYSCFG = _REG_BIT(RCC_APB2RSTR_OFFSET, 0),
};
#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_css_int_clear(void);
int rcc_css_int_flag(void);
void rcc_wait_for_sysclk_status(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_set_sysclk_source(uint32_t clk);
void rcc_set_pll_source(uint32_t pllsrc);
void rcc_set_ppre2(uint32_t ppre2);
void rcc_set_ppre1(uint32_t ppre1);
void rcc_set_hpre(uint32_t hpre);
void rcc_set_main_pll(uint32_t source, uint32_t pllm, uint32_t plln, uint32_t pllp, uint32_t pllq, uint32_t pllr);
uint32_t rcc_system_clock_source(void);
void rcc_set_msi_range(uint32_t msi_range);
void rcc_set_msi_range_standby(uint32_t msi_range);
void rcc_pll_output_enable(uint32_t pllout);
void rcc_set_clock48_source(uint32_t clksel);
void rcc_enable_rtc_clock(void);
void rcc_disable_rtc_clock(void);
void rcc_set_rtc_clock_source(enum rcc_osc clk);
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