diff options
| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2014-10-02 10:13:13 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2014-10-02 10:13:13 +0000 |
| commit | 736e966cf5cd6cae1732d874229f363ecfcb9b3a (patch) | |
| tree | 048b7f449520541d905bfd8e270b1175b03a189f /os/hal/ports/STM32/STM32F3xx/hal_lld.h | |
| parent | 92c63ec84ff7f855e3a99c0ff78ecb7ae102178e (diff) | |
| download | ChibiOS-736e966cf5cd6cae1732d874229f363ecfcb9b3a.tar.gz ChibiOS-736e966cf5cd6cae1732d874229f363ecfcb9b3a.tar.bz2 ChibiOS-736e966cf5cd6cae1732d874229f363ecfcb9b3a.zip | |
renamed STM32F3 directories to reflect new models
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7342 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/ports/STM32/STM32F3xx/hal_lld.h')
| -rw-r--r-- | os/hal/ports/STM32/STM32F3xx/hal_lld.h | 1150 |
1 files changed, 1150 insertions, 0 deletions
diff --git a/os/hal/ports/STM32/STM32F3xx/hal_lld.h b/os/hal/ports/STM32/STM32F3xx/hal_lld.h new file mode 100644 index 000000000..21f6d4a84 --- /dev/null +++ b/os/hal/ports/STM32/STM32F3xx/hal_lld.h @@ -0,0 +1,1150 @@ +/*
+ ChibiOS/HAL - Copyright (C) 2006-2014 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file STM32F3xx/hal_lld.h
+ * @brief STM32F3xx HAL subsystem low level driver header.
+ * @pre This module requires the following macros to be defined in the
+ * @p board.h file:
+ * - STM32_LSECLK.
+ * - STM32_LSEDRV.
+ * - STM32_LSE_BYPASS (optionally).
+ * - STM32_HSECLK.
+ * - STM32_HSE_BYPASS (optionally).
+ * .
+ * One of the following macros must also be defined:
+ * - STM32F301x8 for Analog & DSP devices.
+ * - STM32F302x8 for Analog & DSP devices.
+ * - STM32F302xC for Analog & DSP devices.
+ * - STM32F303x8 for Analog & DSP devices.
+ * - STM32F303xC for Analog & DSP devices.
+ * - STM32F318xx for Analog & DSP devices.
+ * - STM32F328xx for Analog & DSP devices.
+ * - STM32F334x8 for Analog & DSP devices.
+ * - STM32F358xx for Analog & DSP devices.
+ * .
+ *
+ * @addtogroup HAL
+ * @{
+ */
+
+#ifndef _HAL_LLD_H_
+#define _HAL_LLD_H_
+
+#include "stm32_registry.h"
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/**
+ * @name Platform identification macros
+ * @{
+ */
+#if defined(STM32F301x8) || defined(__DOXYGEN__)
+#define PLATFORM_NAME "STM32F301x8 Analog & DSP"
+
+#elif defined(STM32F302x8)
+#define PLATFORM_NAME "STM32F302x8 Analog & DSP"
+
+#elif defined(STM32F302xC)
+#define PLATFORM_NAME "STM32F302xC Analog & DSP"
+
+#elif defined(STM32F303x8)
+#define PLATFORM_NAME "STM32F303x8 Analog & DSP"
+
+#elif defined(STM32F303xC)
+#define PLATFORM_NAME "STM32F303xC Analog & DSP"
+
+#elif defined(STM32F318xx)
+#define PLATFORM_NAME "STM32F318xx Analog & DSP"
+
+#elif defined(STM32F328xx)
+#define PLATFORM_NAME "STM32F328xx Analog & DSP"
+
+#elif defined(STM32F334x8)
+#define PLATFORM_NAME "STM32F334x8 Analog & DSP"
+
+#elif defined(STM32F358xx)
+#define PLATFORM_NAME "STM32F358xx Analog & DSP"
+
+#else
+#error "STM32F3xx device not specified"
+#endif
+/** @} */
+
+/**
+ * @name Absolute Maximum Ratings
+ * @{
+ */
+/**
+ * @brief Maximum system clock frequency.
+ */
+#define STM32_SYSCLK_MAX 72000000
+
+/**
+ * @brief Maximum HSE clock frequency.
+ */
+#define STM32_HSECLK_MAX 32000000
+
+/**
+ * @brief Minimum HSE clock frequency.
+ */
+#define STM32_HSECLK_MIN 1000000
+
+/**
+ * @brief Maximum LSE clock frequency.
+ */
+#define STM32_LSECLK_MAX 1000000
+
+/**
+ * @brief Minimum LSE clock frequency.
+ */
+#define STM32_LSECLK_MIN 32768
+
+/**
+ * @brief Maximum PLLs input clock frequency.
+ */
+#define STM32_PLLIN_MAX 24000000
+
+/**
+ * @brief Minimum PLLs input clock frequency.
+ */
+#define STM32_PLLIN_MIN 1000000
+
+/**
+ * @brief Maximum PLL output clock frequency.
+ */
+#define STM32_PLLOUT_MAX 72000000
+
+/**
+ * @brief Maximum PLL output clock frequency.
+ */
+#define STM32_PLLOUT_MIN 16000000
+
+/**
+ * @brief Maximum APB1 clock frequency.
+ */
+#define STM32_PCLK1_MAX 36000000
+
+/**
+ * @brief Maximum APB2 clock frequency.
+ */
+#define STM32_PCLK2_MAX 72000000
+
+/**
+ * @brief Maximum ADC clock frequency.
+ */
+#define STM32_ADCCLK_MAX 72000000
+/** @} */
+
+/**
+ * @name Internal clock sources
+ * @{
+ */
+#define STM32_HSICLK 8000000 /**< High speed internal clock. */
+#define STM32_LSICLK 40000 /**< Low speed internal clock. */
+/** @} */
+
+/**
+ * @name PWR_CR register bits definitions
+ * @{
+ */
+#define STM32_PLS_MASK (7 << 5) /**< PLS bits mask. */
+#define STM32_PLS_LEV0 (0 << 5) /**< PVD level 0. */
+#define STM32_PLS_LEV1 (1 << 5) /**< PVD level 1. */
+#define STM32_PLS_LEV2 (2 << 5) /**< PVD level 2. */
+#define STM32_PLS_LEV3 (3 << 5) /**< PVD level 3. */
+#define STM32_PLS_LEV4 (4 << 5) /**< PVD level 4. */
+#define STM32_PLS_LEV5 (5 << 5) /**< PVD level 5. */
+#define STM32_PLS_LEV6 (6 << 5) /**< PVD level 6. */
+#define STM32_PLS_LEV7 (7 << 5) /**< PVD level 7. */
+/** @} */
+
+/**
+ * @name RCC_CFGR register bits definitions
+ * @{
+ */
+#define STM32_SW_HSI (0 << 0) /**< SYSCLK source is HSI. */
+#define STM32_SW_HSE (1 << 0) /**< SYSCLK source is HSE. */
+#define STM32_SW_PLL (2 << 0) /**< SYSCLK source is PLL. */
+
+#define STM32_HPRE_DIV1 (0 << 4) /**< SYSCLK divided by 1. */
+#define STM32_HPRE_DIV2 (8 << 4) /**< SYSCLK divided by 2. */
+#define STM32_HPRE_DIV4 (9 << 4) /**< SYSCLK divided by 4. */
+#define STM32_HPRE_DIV8 (10 << 4) /**< SYSCLK divided by 8. */
+#define STM32_HPRE_DIV16 (11 << 4) /**< SYSCLK divided by 16. */
+#define STM32_HPRE_DIV64 (12 << 4) /**< SYSCLK divided by 64. */
+#define STM32_HPRE_DIV128 (13 << 4) /**< SYSCLK divided by 128. */
+#define STM32_HPRE_DIV256 (14 << 4) /**< SYSCLK divided by 256. */
+#define STM32_HPRE_DIV512 (15 << 4) /**< SYSCLK divided by 512. */
+
+#define STM32_PPRE1_DIV1 (0 << 8) /**< HCLK divided by 1. */
+#define STM32_PPRE1_DIV2 (4 << 8) /**< HCLK divided by 2. */
+#define STM32_PPRE1_DIV4 (5 << 8) /**< HCLK divided by 4. */
+#define STM32_PPRE1_DIV8 (6 << 8) /**< HCLK divided by 8. */
+#define STM32_PPRE1_DIV16 (7 << 8) /**< HCLK divided by 16. */
+
+#define STM32_PPRE2_DIV1 (0 << 11) /**< HCLK divided by 1. */
+#define STM32_PPRE2_DIV2 (4 << 11) /**< HCLK divided by 2. */
+#define STM32_PPRE2_DIV4 (5 << 11) /**< HCLK divided by 4. */
+#define STM32_PPRE2_DIV8 (6 << 11) /**< HCLK divided by 8. */
+#define STM32_PPRE2_DIV16 (7 << 11) /**< HCLK divided by 16. */
+
+#define STM32_PLLSRC_HSI (0 << 16) /**< PLL clock source is HSI/2. */
+#define STM32_PLLSRC_HSE (1 << 16) /**< PLL clock source is
+ HSE/PREDIV. */
+
+#define STM32_USBPRE_DIV1P5 (0 << 22) /**< USB clock is PLLCLK/1.5. */
+#define STM32_USBPRE_DIV1 (1 << 22) /**< USB clock is PLLCLK/1. */
+
+#define STM32_MCOSEL_NOCLOCK (0 << 24) /**< No clock on MCO pin. */
+#define STM32_MCOSEL_LSI (2 << 24) /**< LSI clock on MCO pin. */
+#define STM32_MCOSEL_LSE (3 << 24) /**< LSE clock on MCO pin. */
+#define STM32_MCOSEL_SYSCLK (4 << 24) /**< SYSCLK on MCO pin. */
+#define STM32_MCOSEL_HSI (5 << 24) /**< HSI clock on MCO pin. */
+#define STM32_MCOSEL_HSE (6 << 24) /**< HSE clock on MCO pin. */
+#define STM32_MCOSEL_PLLDIV2 (7 << 24) /**< PLL/2 clock on MCO pin. */
+/** @} */
+
+/**
+ * @name RCC_BDCR register bits definitions
+ * @{
+ */
+#define STM32_RTCSEL_MASK (3 << 8) /**< RTC clock source mask. */
+#define STM32_RTCSEL_NOCLOCK (0 << 8) /**< No clock. */
+#define STM32_RTCSEL_LSE (1 << 8) /**< LSE used as RTC clock. */
+#define STM32_RTCSEL_LSI (2 << 8) /**< LSI used as RTC clock. */
+#define STM32_RTCSEL_HSEDIV (3 << 8) /**< HSE divided by 32 used as
+ RTC clock. */
+/** @} */
+
+/**
+ * @name RCC_CFGR2 register bits definitions
+ * @{
+ */
+#define STM32_PREDIV_MASK (15 << 0) /**< PREDIV divisor mask. */
+#define STM32_ADC12PRES_MASK (31 << 4) /**< ADC12 clock source mask. */
+#define STM32_ADC12PRES_NOCLOCK (0 << 4) /**< ADC12 clock is disabled. */
+#define STM32_ADC12PRES_DIV1 (16 << 4) /**< ADC12 clock is PLL/1. */
+#define STM32_ADC12PRES_DIV2 (17 << 4) /**< ADC12 clock is PLL/2. */
+#define STM32_ADC12PRES_DIV4 (18 << 4) /**< ADC12 clock is PLL/4. */
+#define STM32_ADC12PRES_DIV6 (19 << 4) /**< ADC12 clock is PLL/6. */
+#define STM32_ADC12PRES_DIV8 (20 << 4) /**< ADC12 clock is PLL/8. */
+#define STM32_ADC12PRES_DIV10 (21 << 4) /**< ADC12 clock is PLL/10. */
+#define STM32_ADC12PRES_DIV12 (22 << 4) /**< ADC12 clock is PLL/12. */
+#define STM32_ADC12PRES_DIV16 (23 << 4) /**< ADC12 clock is PLL/16. */
+#define STM32_ADC12PRES_DIV32 (24 << 4) /**< ADC12 clock is PLL/32. */
+#define STM32_ADC12PRES_DIV64 (25 << 4) /**< ADC12 clock is PLL/64. */
+#define STM32_ADC12PRES_DIV128 (26 << 4) /**< ADC12 clock is PLL/128. */
+#define STM32_ADC12PRES_DIV256 (27 << 4) /**< ADC12 clock is PLL/256. */
+#define STM32_ADC34PRES_MASK (31 << 9) /**< ADC34 clock source mask. */
+#define STM32_ADC34PRES_NOCLOCK (0 << 9) /**< ADC34 clock is disabled. */
+#define STM32_ADC34PRES_DIV1 (16 << 9) /**< ADC34 clock is PLL/1. */
+#define STM32_ADC34PRES_DIV2 (17 << 9) /**< ADC34 clock is PLL/2. */
+#define STM32_ADC34PRES_DIV4 (18 << 9) /**< ADC34 clock is PLL/4. */
+#define STM32_ADC34PRES_DIV6 (19 << 9) /**< ADC34 clock is PLL/6. */
+#define STM32_ADC34PRES_DIV8 (20 << 9) /**< ADC34 clock is PLL/8. */
+#define STM32_ADC34PRES_DIV10 (21 << 9) /**< ADC34 clock is PLL/10. */
+#define STM32_ADC34PRES_DIV12 (22 << 9) /**< ADC34 clock is PLL/12. */
+#define STM32_ADC34PRES_DIV16 (23 << 9) /**< ADC34 clock is PLL/16. */
+#define STM32_ADC34PRES_DIV32 (24 << 9) /**< ADC34 clock is PLL/32. */
+#define STM32_ADC34PRES_DIV64 (25 << 9) /**< ADC34 clock is PLL/64. */
+#define STM32_ADC34PRES_DIV128 (26 << 9) /**< ADC34 clock is PLL/128. */
+#define STM32_ADC34PRES_DIV256 (27 << 9) /**< ADC34 clock is PLL/256. */
+/** @} */
+
+/**
+ * @name RCC_CFGR3 register bits definitions
+ * @{
+ */
+#define STM32_USART1SW_MASK (3 << 0) /**< USART1 clock source mask. */
+#define STM32_USART1SW_PCLK (0 << 0) /**< USART1 clock is PCLK. */
+#define STM32_USART1SW_SYSCLK (1 << 0) /**< USART1 clock is SYSCLK. */
+#define STM32_USART1SW_LSE (2 << 0) /**< USART1 clock is LSE. */
+#define STM32_USART1SW_HSI (3 << 0) /**< USART1 clock is HSI. */
+#define STM32_I2C1SW_MASK (1 << 4) /**< I2C1 clock source mask. */
+#define STM32_I2C1SW_HSI (0 << 4) /**< I2C1 clock is HSI. */
+#define STM32_I2C1SW_SYSCLK (1 << 4) /**< I2C1 clock is SYSCLK. */
+#define STM32_I2C2SW_MASK (1 << 5) /**< I2C2 clock source mask. */
+#define STM32_I2C2SW_HSI (0 << 5) /**< I2C2 clock is HSI. */
+#define STM32_I2C2SW_SYSCLK (1 << 5) /**< I2C2 clock is SYSCLK. */
+#define STM32_TIM1SW_MASK (1 << 8) /**< TIM1 clock source mask. */
+#define STM32_TIM1SW_PCLK2 (0 << 8) /**< TIM1 clock is PCLK2. */
+#define STM32_TIM1SW_PLLX2 (1 << 8) /**< TIM1 clock is PLL*2. */
+#define STM32_TIM8SW_MASK (1 << 9) /**< TIM8 clock source mask. */
+#define STM32_TIM8SW_PCLK2 (0 << 9) /**< TIM8 clock is PCLK2. */
+#define STM32_TIM8SW_PLLX2 (1 << 9) /**< TIM8 clock is PLL*2. */
+#define STM32_USART2SW_MASK (3 << 16) /**< USART2 clock source mask. */
+#define STM32_USART2SW_PCLK (0 << 16) /**< USART2 clock is PCLK. */
+#define STM32_USART2SW_SYSCLK (1 << 16) /**< USART2 clock is SYSCLK. */
+#define STM32_USART2SW_LSE (2 << 16) /**< USART2 clock is LSE. */
+#define STM32_USART2SW_HSI (3 << 16) /**< USART2 clock is HSI. */
+#define STM32_USART3SW_MASK (3 << 18) /**< USART3 clock source mask. */
+#define STM32_USART3SW_PCLK (0 << 18) /**< USART3 clock is PCLK. */
+#define STM32_USART3SW_SYSCLK (1 << 18) /**< USART3 clock is SYSCLK. */
+#define STM32_USART3SW_LSE (2 << 18) /**< USART3 clock is LSE. */
+#define STM32_USART3SW_HSI (3 << 18) /**< USART3 clock is HSI. */
+#define STM32_UART4SW_MASK (3 << 20) /**< USART4 clock source mask. */
+#define STM32_UART4SW_PCLK (0 << 20) /**< USART4 clock is PCLK. */
+#define STM32_UART4SW_SYSCLK (1 << 20) /**< USART4 clock is SYSCLK. */
+#define STM32_UART4SW_LSE (2 << 20) /**< USART4 clock is LSE. */
+#define STM32_UART4SW_HSI (3 << 20) /**< USART4 clock is HSI. */
+#define STM32_UART5SW_MASK (3 << 22) /**< USART5 clock source mask. */
+#define STM32_UART5SW_PCLK (0 << 22) /**< USART5 clock is PCLK. */
+#define STM32_UART5SW_SYSCLK (1 << 22) /**< USART5 clock is SYSCLK. */
+#define STM32_UART5SW_LSE (2 << 22) /**< USART5 clock is LSE. */
+#define STM32_UART5SW_HSI (3 << 22) /**< USART5 clock is HSI. */
+/** @} */
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @name Configuration options
+ * @{
+ */
+/**
+ * @brief Disables the PWR/RCC initialization in the HAL.
+ */
+#if !defined(STM32_NO_INIT) || defined(__DOXYGEN__)
+#define STM32_NO_INIT FALSE
+#endif
+
+/**
+ * @brief Enables or disables the programmable voltage detector.
+ */
+#if !defined(STM32_PVD_ENABLE) || defined(__DOXYGEN__)
+#define STM32_PVD_ENABLE FALSE
+#endif
+
+/**
+ * @brief Sets voltage level for programmable voltage detector.
+ */
+#if !defined(STM32_PLS) || defined(__DOXYGEN__)
+#define STM32_PLS STM32_PLS_LEV0
+#endif
+
+/**
+ * @brief Enables or disables the HSI clock source.
+ */
+#if !defined(STM32_HSI_ENABLED) || defined(__DOXYGEN__)
+#define STM32_HSI_ENABLED TRUE
+#endif
+
+/**
+ * @brief Enables or disables the LSI clock source.
+ */
+#if !defined(STM32_LSI_ENABLED) || defined(__DOXYGEN__)
+#define STM32_LSI_ENABLED TRUE
+#endif
+
+/**
+ * @brief Enables or disables the HSE clock source.
+ */
+#if !defined(STM32_HSE_ENABLED) || defined(__DOXYGEN__)
+#define STM32_HSE_ENABLED TRUE
+#endif
+
+/**
+ * @brief Enables or disables the LSE clock source.
+ */
+#if !defined(STM32_LSE_ENABLED) || defined(__DOXYGEN__)
+#define STM32_LSE_ENABLED FALSE
+#endif
+
+/**
+ * @brief Main clock source selection.
+ * @note If the selected clock source is not the PLL then the PLL is not
+ * initialized and started.
+ * @note The default value is calculated for a 72MHz system clock from
+ * a 8MHz crystal using the PLL.
+ */
+#if !defined(STM32_SW) || defined(__DOXYGEN__)
+#define STM32_SW STM32_SW_PLL
+#endif
+
+/**
+ * @brief Clock source for the PLL.
+ * @note This setting has only effect if the PLL is selected as the
+ * system clock source.
+ * @note The default value is calculated for a 72MHz system clock from
+ * a 8MHz crystal using the PLL.
+ */
+#if !defined(STM32_PLLSRC) || defined(__DOXYGEN__)
+#define STM32_PLLSRC STM32_PLLSRC_HSE
+#endif
+
+/**
+ * @brief Crystal PLL pre-divider.
+ * @note This setting has only effect if the PLL is selected as the
+ * system clock source.
+ * @note The default value is calculated for a 72MHz system clock from
+ * a 8MHz crystal using the PLL.
+ */
+#if !defined(STM32_PREDIV_VALUE) || defined(__DOXYGEN__)
+#define STM32_PREDIV_VALUE 1
+#endif
+
+/**
+ * @brief PLL multiplier value.
+ * @note The allowed range is 2...16.
+ * @note The default value is calculated for a 72MHz system clock from
+ * a 8MHz crystal using the PLL.
+ */
+#if !defined(STM32_PLLMUL_VALUE) || defined(__DOXYGEN__)
+#define STM32_PLLMUL_VALUE 9
+#endif
+
+/**
+ * @brief AHB prescaler value.
+ * @note The default value is calculated for a 72MHz system clock from
+ * a 8MHz crystal using the PLL.
+ */
+#if !defined(STM32_HPRE) || defined(__DOXYGEN__)
+#define STM32_HPRE STM32_HPRE_DIV1
+#endif
+
+/**
+ * @brief APB1 prescaler value.
+ */
+#if !defined(STM32_PPRE1) || defined(__DOXYGEN__)
+#define STM32_PPRE1 STM32_PPRE1_DIV2
+#endif
+
+/**
+ * @brief APB2 prescaler value.
+ */
+#if !defined(STM32_PPRE2) || defined(__DOXYGEN__)
+#define STM32_PPRE2 STM32_PPRE2_DIV2
+#endif
+
+/**
+ * @brief MCO pin setting.
+ */
+#if !defined(STM32_MCOSEL) || defined(__DOXYGEN__)
+#define STM32_MCOSEL STM32_MCOSEL_NOCLOCK
+#endif
+
+/**
+ * @brief ADC12 prescaler value.
+ */
+#if !defined(STM32_ADC12PRES) || defined(__DOXYGEN__)
+#define STM32_ADC12PRES STM32_ADC12PRES_DIV1
+#endif
+
+/**
+ * @brief ADC34 prescaler value.
+ */
+#if !defined(STM32_ADC34PRES) || defined(__DOXYGEN__)
+#define STM32_ADC34PRES STM32_ADC34PRES_DIV1
+#endif
+
+/**
+ * @brief USART1 clock source.
+ */
+#if !defined(STM32_USART1SW) || defined(__DOXYGEN__)
+#define STM32_USART1SW STM32_USART1SW_PCLK
+#endif
+
+/**
+ * @brief USART2 clock source.
+ */
+#if !defined(STM32_USART2SW) || defined(__DOXYGEN__)
+#define STM32_USART2SW STM32_USART2SW_PCLK
+#endif
+
+/**
+ * @brief USART3 clock source.
+ */
+#if !defined(STM32_USART3SW) || defined(__DOXYGEN__)
+#define STM32_USART3SW STM32_USART3SW_PCLK
+#endif
+
+/**
+ * @brief UART4 clock source.
+ */
+#if !defined(STM32_UART4SW) || defined(__DOXYGEN__)
+#define STM32_UART4SW STM32_UART4SW_PCLK
+#endif
+
+/**
+ * @brief UART5 clock source.
+ */
+#if !defined(STM32_UART5SW) || defined(__DOXYGEN__)
+#define STM32_UART5SW STM32_UART5SW_PCLK
+#endif
+
+/**
+ * @brief I2C1 clock source.
+ */
+#if !defined(STM32_I2C1SW) || defined(__DOXYGEN__)
+#define STM32_I2C1SW STM32_I2C1SW_SYSCLK
+#endif
+
+/**
+ * @brief I2C2 clock source.
+ */
+#if !defined(STM32_I2C2SW) || defined(__DOXYGEN__)
+#define STM32_I2C2SW STM32_I2C2SW_SYSCLK
+#endif
+
+/**
+ * @brief TIM1 clock source.
+ */
+#if !defined(STM32_TIM1SW) || defined(__DOXYGEN__)
+#define STM32_TIM1SW STM32_TIM1SW_PCLK2
+#endif
+
+/**
+ * @brief TIM8 clock source.
+ */
+#if !defined(STM32_TIM8SW) || defined(__DOXYGEN__)
+#define STM32_TIM8SW STM32_TIM8SW_PCLK2
+#endif
+
+/**
+ * @brief RTC clock source.
+ */
+#if !defined(STM32_RTCSEL) || defined(__DOXYGEN__)
+#define STM32_RTCSEL STM32_RTCSEL_LSI
+#endif
+
+/**
+ * @brief USB clock setting.
+ */
+#if !defined(STM32_USB_CLOCK_REQUIRED) || defined(__DOXYGEN__)
+#define STM32_USB_CLOCK_REQUIRED TRUE
+#endif
+
+/**
+ * @brief USB prescaler initialization.
+ */
+#if !defined(STM32_USBPRE) || defined(__DOXYGEN__)
+#define STM32_USBPRE STM32_USBPRE_DIV1P5
+#endif
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/*
+ * Configuration-related checks.
+ */
+#if !defined(STM32F3xx_MCUCONF)
+#error "Using a wrong mcuconf.h file, STM32F3xx_MCUCONF not defined"
+#endif
+
+/*
+ * HSI related checks.
+ */
+#if STM32_HSI_ENABLED
+#else /* !STM32_HSI_ENABLED */
+
+#if STM32_SW == STM32_SW_HSI
+#error "HSI not enabled, required by STM32_SW"
+#endif
+
+#if STM32_USART1SW == STM32_USART1SW_HSI
+#error "HSI not enabled, required by STM32_USART1SW"
+#endif
+
+#if STM32_USART2SW == STM32_USART2SW_HSI
+#error "HSI not enabled, required by STM32_USART2SW"
+#endif
+
+#if STM32_USART3SW == STM32_USART3SW_HSI
+#error "HSI not enabled, required by STM32_USART3SW"
+#endif
+
+#if STM32_UART4SW == STM32_UART4SW_HSI
+#error "HSI not enabled, required by STM32_UART4SW"
+#endif
+
+#if STM32_UART5SW == STM32_UART5SW_HSI
+#error "HSI not enabled, required by STM32_UART5SW"
+#endif
+
+#if STM32_I2C1SW == STM32_I2C1SW_HSI
+#error "HSI not enabled, required by STM32_I2C1SW"
+#endif
+
+#if STM32_I2C2SW == STM32_I2C2SW_HSI
+#error "HSI not enabled, required by STM32_I2C2SW"
+#endif
+
+#if STM32_TIM1SW == STM32_TIM1SW_HSI
+#error "HSI not enabled, required by STM32_TIM1SW"
+#endif
+
+#if STM32_TIM8SW == STM32_TIM8SW_HSI
+#error "HSI not enabled, required by STM32_TIM8SW"
+#endif
+
+#if (STM32_SW == STM32_SW_PLL) && (STM32_PLLSRC == STM32_PLLSRC_HSI)
+#error "HSI not enabled, required by STM32_SW and STM32_PLLSRC"
+#endif
+
+#if (STM32_MCOSEL == STM32_MCOSEL_HSI) || \
+ ((STM32_MCOSEL == STM32_MCOSEL_PLLDIV2) && \
+ (STM32_PLLSRC == STM32_PLLSRC_HSI))
+#error "HSI not enabled, required by STM32_MCOSEL"
+#endif
+
+#endif /* !STM32_HSI_ENABLED */
+
+/*
+ * HSE related checks.
+ */
+#if STM32_HSE_ENABLED
+
+#if STM32_HSECLK == 0
+#error "HSE frequency not defined"
+#elif (STM32_HSECLK < STM32_HSECLK_MIN) || (STM32_HSECLK > STM32_HSECLK_MAX)
+#error "STM32_HSECLK outside acceptable range (STM32_HSECLK_MIN...STM32_HSECLK_MAX)"
+#endif
+
+#else /* !STM32_HSE_ENABLED */
+
+#if STM32_SW == STM32_SW_HSE
+#error "HSE not enabled, required by STM32_SW"
+#endif
+
+#if (STM32_SW == STM32_SW_PLL) && (STM32_PLLSRC == STM32_PLLSRC_HSE)
+#error "HSE not enabled, required by STM32_SW and STM32_PLLSRC"
+#endif
+
+#if (STM32_MCOSEL == STM32_MCOSEL_HSE) || \
+ ((STM32_MCOSEL == STM32_MCOSEL_PLLDIV2) && \
+ (STM32_PLLSRC == STM32_PLLSRC_HSE))
+#error "HSE not enabled, required by STM32_MCOSEL"
+#endif
+
+#if STM32_RTCSEL == STM32_RTCSEL_HSEDIV
+#error "HSE not enabled, required by STM32_RTCSEL"
+#endif
+
+#endif /* !STM32_HSE_ENABLED */
+
+/*
+ * LSI related checks.
+ */
+#if STM32_LSI_ENABLED
+#else /* !STM32_LSI_ENABLED */
+
+#if STM32_RTCSEL == STM32_RTCSEL_LSI
+#error "LSI not enabled, required by STM32_RTCSEL"
+#endif
+
+#endif /* !STM32_LSI_ENABLED */
+
+/*
+ * LSE related checks.
+ */
+#if STM32_LSE_ENABLED
+
+#if !defined(STM32_LSECLK) || (STM32_LSECLK == 0)
+#error "STM32_LSECLK not defined"
+#endif
+
+#if (STM32_LSECLK < STM32_LSECLK_MIN) || (STM32_LSECLK > STM32_LSECLK_MAX)
+#error "STM32_LSECLK outside acceptable range (STM32_LSECLK_MIN...STM32_LSECLK_MAX)"
+#endif
+
+#if !defined(STM32_LSEDRV)
+#error "STM32_LSEDRV not defined"
+#endif
+
+#if (STM32_LSEDRV >> 3) > 3
+#error "STM32_LSEDRV outside acceptable range ((0<<3)...(3<<3))"
+#endif
+
+#if STM32_USART1SW == STM32_USART1SW_LSE
+#error "LSE not enabled, required by STM32_USART1SW"
+#endif
+
+#if STM32_USART2SW == STM32_USART2SW_LSE
+#error "LSE not enabled, required by STM32_USART2SW"
+#endif
+
+#if STM32_USART3SW == STM32_USART3SW_LSE
+#error "LSE not enabled, required by STM32_USART3SW"
+#endif
+
+#if STM32_UART4SW == STM32_UART4SW_LSE
+#error "LSE not enabled, required by STM32_UART4SW"
+#endif
+
+#if STM32_UART5SW == STM32_UART5SW_LSE
+#error "LSE not enabled, required by STM32_UART5SW"
+#endif
+
+#else /* !STM32_LSE_ENABLED */
+
+#if STM32_RTCSEL == STM32_RTCSEL_LSE
+#error "LSE not enabled, required by STM32_RTCSEL"
+#endif
+
+#endif /* !STM32_LSE_ENABLED */
+
+/* PLL activation conditions.*/
+#if (STM32_SW == STM32_SW_PLL) || \
+ (STM32_MCOSEL == STM32_MCOSEL_PLLDIV2) || \
+ (STM32_TIM1SW == STM32_TIM1SW_PLLX2) || \
+ (STM32_TIM8SW == STM32_TIM8SW_PLLX2) || \
+ (STM32_ADC12PRES != STM32_ADC12PRES_NOCLOCK) || \
+ (STM32_ADC34PRES != STM32_ADC34PRES_NOCLOCK) || \
+ STM32_USB_CLOCK_REQUIRED || \
+ defined(__DOXYGEN__)
+/**
+ * @brief PLL activation flag.
+ */
+#define STM32_ACTIVATE_PLL TRUE
+#else
+#define STM32_ACTIVATE_PLL FALSE
+#endif
+
+/* HSE prescaler setting check.*/
+#if ((STM32_PREDIV_VALUE >= 1) || (STM32_PREDIV_VALUE <= 16))
+#define STM32_PREDIV ((STM32_PREDIV_VALUE - 1) << 0)
+#else
+#error "invalid STM32_PREDIV value specified"
+#endif
+
+/**
+ * @brief PLLMUL field.
+ */
+#if ((STM32_PLLMUL_VALUE >= 2) && (STM32_PLLMUL_VALUE <= 16)) || \
+ defined(__DOXYGEN__)
+#define STM32_PLLMUL ((STM32_PLLMUL_VALUE - 2) << 18)
+#else
+#error "invalid STM32_PLLMUL_VALUE value specified"
+#endif
+
+/**
+ * @brief PLL input clock frequency.
+ */
+#if (STM32_PLLSRC == STM32_PLLSRC_HSE) || defined(__DOXYGEN__)
+#define STM32_PLLCLKIN (STM32_HSECLK / STM32_PREDIV_VALUE)
+#elif STM32_PLLSRC == STM32_PLLSRC_HSI
+#define STM32_PLLCLKIN (STM32_HSICLK / 2)
+#else
+#error "invalid STM32_PLLSRC value specified"
+#endif
+
+/* PLL input frequency range check.*/
+#if (STM32_PLLCLKIN < STM32_PLLIN_MIN) || (STM32_PLLCLKIN > STM32_PLLIN_MAX)
+#error "STM32_PLLCLKIN outside acceptable range (STM32_PLLIN_MIN...STM32_PLLIN_MAX)"
+#endif
+
+/**
+ * @brief PLL output clock frequency.
+ */
+#define STM32_PLLCLKOUT (STM32_PLLCLKIN * STM32_PLLMUL_VALUE)
+
+/* PLL output frequency range check.*/
+#if (STM32_PLLCLKOUT < STM32_PLLOUT_MIN) || (STM32_PLLCLKOUT > STM32_PLLOUT_MAX)
+#error "STM32_PLLCLKOUT outside acceptable range (STM32_PLLOUT_MIN...STM32_PLLOUT_MAX)"
+#endif
+
+/**
+ * @brief System clock source.
+ */
+#if (STM32_SW == STM32_SW_PLL) || defined(__DOXYGEN__)
+#define STM32_SYSCLK STM32_PLLCLKOUT
+#elif (STM32_SW == STM32_SW_HSI)
+#define STM32_SYSCLK STM32_HSICLK
+#elif (STM32_SW == STM32_SW_HSE)
+#define STM32_SYSCLK STM32_HSECLK
+#else
+#error "invalid STM32_SW value specified"
+#endif
+
+/* Check on the system clock.*/
+#if STM32_SYSCLK > STM32_SYSCLK_MAX
+#error "STM32_SYSCLK above maximum rated frequency (STM32_SYSCLK_MAX)"
+#endif
+
+/**
+ * @brief AHB frequency.
+ */
+#if (STM32_HPRE == STM32_HPRE_DIV1) || defined(__DOXYGEN__)
+#define STM32_HCLK (STM32_SYSCLK / 1)
+#elif STM32_HPRE == STM32_HPRE_DIV2
+#define STM32_HCLK (STM32_SYSCLK / 2)
+#elif STM32_HPRE == STM32_HPRE_DIV4
+#define STM32_HCLK (STM32_SYSCLK / 4)
+#elif STM32_HPRE == STM32_HPRE_DIV8
+#define STM32_HCLK (STM32_SYSCLK / 8)
+#elif STM32_HPRE == STM32_HPRE_DIV16
+#define STM32_HCLK (STM32_SYSCLK / 16)
+#elif STM32_HPRE == STM32_HPRE_DIV64
+#define STM32_HCLK (STM32_SYSCLK / 64)
+#elif STM32_HPRE == STM32_HPRE_DIV128
+#define STM32_HCLK (STM32_SYSCLK / 128)
+#elif STM32_HPRE == STM32_HPRE_DIV256
+#define STM32_HCLK (STM32_SYSCLK / 256)
+#elif STM32_HPRE == STM32_HPRE_DIV512
+#define STM32_HCLK (STM32_SYSCLK / 512)
+#else
+#error "invalid STM32_HPRE value specified"
+#endif
+
+/* AHB frequency check.*/
+#if STM32_HCLK > STM32_SYSCLK_MAX
+#error "STM32_HCLK exceeding maximum frequency (STM32_SYSCLK_MAX)"
+#endif
+
+/**
+ * @brief APB1 frequency.
+ */
+#if (STM32_PPRE1 == STM32_PPRE1_DIV1) || defined(__DOXYGEN__)
+#define STM32_PCLK1 (STM32_HCLK / 1)
+#elif STM32_PPRE1 == STM32_PPRE1_DIV2
+#define STM32_PCLK1 (STM32_HCLK / 2)
+#elif STM32_PPRE1 == STM32_PPRE1_DIV4
+#define STM32_PCLK1 (STM32_HCLK / 4)
+#elif STM32_PPRE1 == STM32_PPRE1_DIV8
+#define STM32_PCLK1 (STM32_HCLK / 8)
+#elif STM32_PPRE1 == STM32_PPRE1_DIV16
+#define STM32_PCLK1 (STM32_HCLK / 16)
+#else
+#error "invalid STM32_PPRE1 value specified"
+#endif
+
+/* APB1 frequency check.*/
+#if STM32_PCLK1 > STM32_PCLK1_MAX
+#error "STM32_PCLK1 exceeding maximum frequency (STM32_PCLK1_MAX)"
+#endif
+
+/**
+ * @brief APB2 frequency.
+ */
+#if (STM32_PPRE2 == STM32_PPRE2_DIV1) || defined(__DOXYGEN__)
+#define STM32_PCLK2 (STM32_HCLK / 1)
+#elif STM32_PPRE2 == STM32_PPRE2_DIV2
+#define STM32_PCLK2 (STM32_HCLK / 2)
+#elif STM32_PPRE2 == STM32_PPRE2_DIV4
+#define STM32_PCLK2 (STM32_HCLK / 4)
+#elif STM32_PPRE2 == STM32_PPRE2_DIV8
+#define STM32_PCLK2 (STM32_HCLK / 8)
+#elif STM32_PPRE2 == STM32_PPRE2_DIV16
+#define STM32_PCLK2 (STM32_HCLK / 16)
+#else
+#error "invalid STM32_PPRE2 value specified"
+#endif
+
+/* APB2 frequency check.*/
+#if STM32_PCLK2 > STM32_PCLK2_MAX
+#error "STM32_PCLK2 exceeding maximum frequency (STM32_PCLK2_MAX)"
+#endif
+
+/**
+ * @brief RTC clock.
+ */
+#if (STM32_RTCSEL == STM32_RTCSEL_LSE) || defined(__DOXYGEN__)
+#define STM32_RTCCLK STM32_LSECLK
+#elif STM32_RTCSEL == STM32_RTCSEL_LSI
+#define STM32_RTCCLK STM32_LSICLK
+#elif STM32_RTCSEL == STM32_RTCSEL_HSEDIV
+#define STM32_RTCCLK (STM32_HSECLK / 32)
+#elif STM32_RTCSEL == STM32_RTCSEL_NOCLOCK
+#define STM32_RTCCLK 0
+#else
+#error "invalid source selected for RTC clock"
+#endif
+
+/**
+ * @brief ADC12 frequency.
+ */
+#if (STM32_ADC12PRES == STM32_ADC12PRES_NOCLOCK) || defined(__DOXYGEN__)
+#define STM32_ADC12CLK 0
+#elif STM32_ADC12PRES == STM32_ADC12PRES_DIV1
+#define STM32_ADC12CLK (STM32_PLLCLKOUT / 1)
+#elif STM32_ADC12PRES == STM32_ADC12PRES_DIV2
+#define STM32_ADC12CLK (STM32_PLLCLKOUT / 2)
+#elif STM32_ADC12PRES == STM32_ADC12PRES_DIV4
+#define STM32_ADC12CLK (STM32_PLLCLKOUT / 4)
+#elif STM32_ADC12PRES == STM32_ADC12PRES_DIV6
+#define STM32_ADC12CLK (STM32_PLLCLKOUT / 6)
+#elif STM32_ADC12PRES == STM32_ADC12PRES_DIV8
+#define STM32_ADC12CLK (STM32_PLLCLKOUT / 8)
+#elif STM32_ADC12PRES == STM32_ADC12PRES_DIV10
+#define STM32_ADC12CLK (STM32_PLLCLKOUT / 10)
+#elif STM32_ADC12PRES == STM32_ADC12PRES_DIV12
+#define STM32_ADC12CLK (STM32_PLLCLKOUT / 12)
+#elif STM32_ADC12PRES == STM32_ADC12PRES_DIV16
+#define STM32_ADC12CLK (STM32_PLLCLKOUT / 16)
+#elif STM32_ADC12PRES == STM32_ADC12PRES_DIV32
+#define STM32_ADC12CLK (STM32_PLLCLKOUT / 32)
+#elif STM32_ADC12PRES == STM32_ADC12PRES_DIV64
+#define STM32_ADC12CLK (STM32_PLLCLKOUT / 64)
+#elif STM32_ADC12PRES == STM32_ADC12PRES_DIV128
+#define STM32_ADC12CLK (STM32_PLLCLKOUT / 128)
+#elif STM32_ADC12PRES == STM32_ADC12PRES_DIV256
+#define STM32_ADC12CLK (STM32_PLLCLKOUT / 256)
+#else
+#error "invalid STM32_ADC12PRES value specified"
+#endif
+
+/**
+ * @brief ADC34 frequency.
+ */
+#if (STM32_ADC43PRES == STM32_ADC34PRES_NOCLOCK) || defined(__DOXYGEN__)
+#define STM32_ADC34CLK 0
+#elif STM32_ADC34PRES == STM32_ADC34PRES_DIV1
+#define STM32_ADC34CLK (STM32_PLLCLKOUT / 1)
+#elif STM32_ADC34PRES == STM32_ADC34PRES_DIV2
+#define STM32_ADC34CLK (STM32_PLLCLKOUT / 2)
+#elif STM32_ADC34PRES == STM32_ADC34PRES_DIV4
+#define STM32_ADC34CLK (STM32_PLLCLKOUT / 4)
+#elif STM32_ADC34PRES == STM32_ADC34PRES_DIV6
+#define STM32_ADC34CLK (STM32_PLLCLKOUT / 6)
+#elif STM32_ADC34PRES == STM32_ADC34PRES_DIV8
+#define STM32_ADC34CLK (STM32_PLLCLKOUT / 8)
+#elif STM32_ADC34PRES == STM32_ADC34PRES_DIV10
+#define STM32_ADC34CLK (STM32_PLLCLKOUT / 10)
+#elif STM32_ADC34PRES == STM32_ADC34PRES_DIV12
+#define STM32_ADC34CLK (STM32_PLLCLKOUT / 12)
+#elif STM32_ADC34PRES == STM32_ADC34PRES_DIV16
+#define STM32_ADC34CLK (STM32_PLLCLKOUT / 16)
+#elif STM32_ADC34PRES == STM32_ADC34PRES_DIV32
+#define STM32_ADC34CLK (STM32_PLLCLKOUT / 32)
+#elif STM32_ADC34PRES == STM32_ADC34PRES_DIV64
+#define STM32_ADC34CLK (STM32_PLLCLKOUT / 64)
+#elif STM32_ADC34PRES == STM32_ADC34PRES_DIV128
+#define STM32_ADC34CLK (STM32_PLLCLKOUT / 128)
+#elif STM32_ADC34PRES == STM32_ADC34PRES_DIV256
+#define STM32_ADC34CLK (STM32_PLLCLKOUT / 256)
+#else
+#error "invalid STM32_ADC34PRES value specified"
+#endif
+
+/* ADC12 frequency check.*/
+#if STM32_ADC12CLK > STM32_ADCCLK_MAX
+#error "STM32_ADC12CLK exceeding maximum frequency (STM32_ADCCLK_MAX)"
+#endif
+
+/* ADC34 frequency check.*/
+#if STM32_ADC34CLK > STM32_ADCCLK_MAX
+#error "STM32_ADC34CLK exceeding maximum frequency (STM32_ADCCLK_MAX)"
+#endif
+
+/**
+ * @brief I2C1 frequency.
+ */
+#if STM32_I2C1SW == STM32_I2C1SW_HSI
+#define STM32_I2C1CLK STM32_HSICLK
+#elif STM32_I2C1SW == STM32_I2C1SW_SYSCLK
+#define STM32_I2C1CLK STM32_SYSCLK
+#else
+#error "invalid source selected for I2C1 clock"
+#endif
+
+/**
+ * @brief I2C2 frequency.
+ */
+#if STM32_I2C2SW == STM32_I2C2SW_HSI
+#define STM32_I2C2CLK STM32_HSICLK
+#elif STM32_I2C2SW == STM32_I2C2SW_SYSCLK
+#define STM32_I2C2CLK STM32_SYSCLK
+#else
+#error "invalid source selected for I2C2 clock"
+#endif
+
+/**
+ * @brief USART1 frequency.
+ */
+#if STM32_USART1SW == STM32_USART1SW_PCLK
+#define STM32_USART1CLK STM32_PCLK2
+#elif STM32_USART1SW == STM32_USART1SW_SYSCLK
+#define STM32_USART1CLK STM32_SYSCLK
+#elif STM32_USART1SW == STM32_USART1SW_LSECLK
+#define STM32_USART1CLK STM32_LSECLK
+#elif STM32_USART1SW == STM32_USART1SW_HSICLK
+#define STM32_USART1CLK STM32_HSICLK
+#else
+#error "invalid source selected for USART1 clock"
+#endif
+
+/**
+ * @brief USART2 frequency.
+ */
+#if STM32_USART2SW == STM32_USART2SW_PCLK
+#define STM32_USART2CLK STM32_PCLK1
+#elif STM32_USART2SW == STM32_USART2SW_SYSCLK
+#define STM32_USART2CLK STM32_SYSCLK
+#elif STM32_USART2SW == STM32_USART2SW_LSECLK
+#define STM32_USART2CLK STM32_LSECLK
+#elif STM32_USART2SW == STM32_USART2SW_HSICLK
+#define STM32_USART2CLK STM32_HSICLK
+#else
+#error "invalid source selected for USART2 clock"
+#endif
+
+/**
+ * @brief USART3 frequency.
+ */
+#if STM32_USART3SW == STM32_USART3SW_PCLK
+#define STM32_USART3CLK STM32_PCLK1
+#elif STM32_USART3SW == STM32_USART3SW_SYSCLK
+#define STM32_USART3CLK STM32_SYSCLK
+#elif STM32_USART3SW == STM32_USART3SW_LSECLK
+#define STM32_USART3CLK STM32_LSECLK
+#elif STM32_USART3SW == STM32_USART3SW_HSICLK
+#define STM32_USART3CLK STM32_HSICLK
+#else
+#error "invalid source selected for USART3 clock"
+#endif
+
+/**
+ * @brief UART4 frequency.
+ */
+#if STM32_UART4SW == STM32_UART4SW_PCLK
+#define STM32_UART4CLK STM32_PCLK1
+#elif STM32_UART4SW == STM32_UART4SW_SYSCLK
+#define STM32_UART4CLK STM32_SYSCLK
+#elif STM32_UART4SW == STM32_UART4SW_LSECLK
+#define STM32_UART4CLK STM32_LSECLK
+#elif STM32_UART4SW == STM32_UART4SW_HSICLK
+#define STM32_UART4CLK STM32_HSICLK
+#else
+#error "invalid source selected for UART4 clock"
+#endif
+
+/**
+ * @brief UART5 frequency.
+ */
+#if STM32_UART5SW == STM32_UART5SW_PCLK
+#define STM32_UART5CLK STM32_PCLK1
+#elif STM32_UART5SW == STM32_UART5SW_SYSCLK
+#define STM32_UART5CLK STM32_SYSCLK
+#elif STM32_UART5SW == STM32_UART5SW_LSECLK
+#define STM32_UART5CLK STM32_LSECLK
+#elif STM32_UART5SW == STM32_UART5SW_HSICLK
+#define STM32_UART5CLK STM32_HSICLK
+#else
+#error "invalid source selected for UART5 clock"
+#endif
+
+/**
+ * @brief TIM1 frequency.
+ */
+#if STM32_TIM1SW == STM32_TIM1SW_PCLK2
+#define STM32_TIM1CLK STM32_PCLK2
+
+#elif STM32_TIM1SW == STM32_TIM1SW_PLLX2
+#if (STM32_SW != STM32_SW_PLL) || \
+ (STM32_HPRE != STM32_HPRE_DIV1) || \
+ (STM32_PPRE2 != STM32_PPRE2_DIV1)
+#error "double clock mode cannot be activated for TIM1 under the current settings"
+#endif
+#define STM32_TIM1CLK (STM32_PLLCLKOUT * 2)
+
+#else
+#error "invalid source selected for TIM1 clock"
+#endif
+
+/**
+ * @brief TIM8 frequency.
+ */
+#if STM32_TIM8SW == STM32_TIM8SW_PCLK2
+#define STM32_TIM8CLK STM32_PCLK2
+
+#elif STM32_TIM8SW == STM32_TIM8SW_PLLX2
+#if (STM32_SW != STM32_SW_PLL) || \
+ (STM32_HPRE != STM32_HPRE_DIV1) || \
+ (STM32_PPRE2 != STM32_PPRE2_DIV1)
+#error "double clock mode cannot be activated for TIM8 under the current settings"
+#endif
+#define STM32_TIM8CLK (STM32_PLLCLKOUT * 2)
+
+#else
+#error "invalid source selected for TIM8 clock"
+#endif
+
+/**
+ * @brief Timers 2, 3, 4, 6, 7 frequency.
+ */
+#if (STM32_PPRE1 == STM32_PPRE1_DIV1) || defined(__DOXYGEN__)
+#define STM32_TIMCLK1 (STM32_PCLK1 * 1)
+#else
+#define STM32_TIMCLK1 (STM32_PCLK1 * 2)
+#endif
+
+/**
+ * @brief Timers 1, 8, 15, 16, 17 frequency.
+ */
+#if (STM32_PPRE2 == STM32_PPRE2_DIV1) || defined(__DOXYGEN__)
+#define STM32_TIMCLK2 (STM32_PCLK2 * 1)
+#else
+#define STM32_TIMCLK2 (STM32_PCLK2 * 2)
+#endif
+
+/**
+ * @brief USB frequency.
+ */
+#if (STM32_USBPRE == STM32_USBPRE_DIV1P5) || defined(__DOXYGEN__)
+#define STM32_USBCLK ((STM32_PLLCLKOUT * 2) / 3)
+#elif (STM32_USBPRE == STM32_USBPRE_DIV1)
+#define STM32_USBCLK STM32_PLLCLKOUT
+#else
+#error "invalid STM32_USBPRE value specified"
+#endif
+
+/**
+ * @brief Flash settings.
+ */
+#if (STM32_HCLK <= 24000000) || defined(__DOXYGEN__)
+#define STM32_FLASHBITS 0x00000010
+#elif STM32_HCLK <= 48000000
+#define STM32_FLASHBITS 0x00000011
+#else
+#define STM32_FLASHBITS 0x00000012
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+/* Various helpers.*/
+#include "nvic.h"
+#include "stm32_isr.h"
+#include "stm32_dma.h"
+#include "stm32_rcc.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void hal_lld_init(void);
+ void stm32_clock_init(void);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HAL_LLD_H_ */
+
+/** @} */
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