121 lines
4.8 KiB
C
121 lines
4.8 KiB
C
/****************************************************************************
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* boards/arm/stm32/olimex-stm32-p107/include/board.h
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*
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* Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __BOARDS_ARM_STM32_OLIMEX_STM32_P107_INCLUDE_BOARD_H
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#define __BOARDS_ARM_STM32_OLIMEX_STM32_P107_INCLUDE_BOARD_H 1
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifndef __ASSEMBLY__
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# include <stdint.h>
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#endif
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#include "stm32_rcc.h"
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#include "stm32_sdio.h"
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#include "stm32.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Clocking *************************************************************************/
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/* HSI - 8 MHz RC factory-trimmed
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* LSI - 40 KHz RC (30-60KHz, uncalibrated)
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* HSE - On-board crystal frequency is 25MHz
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* LSE - 32.768 kHz
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*/
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#define STM32_BOARD_XTAL 25000000ul
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#define STM32_HSI_FREQUENCY 8000000ul
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#define STM32_LSI_FREQUENCY 40000
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#define STM32_HSE_FREQUENCY STM32_BOARD_XTAL
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#define STM32_LSE_FREQUENCY 32768
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/* PLL output is 72MHz */
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#define STM32_PLL_PREDIV2 RCC_CFGR2_PREDIV2d5 /* 25MHz / 5 => 5MHz */
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#define STM32_PLL_PLL2MUL RCC_CFGR2_PLL2MULx8 /* 5MHz * 8 => 40MHz */
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#define STM32_PLL_PREDIV1 RCC_CFGR2_PREDIV1d5 /* 40MHz / 5 => 8MHz */
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#define STM32_PLL_PLLMUL RCC_CFGR_PLLMUL_CLKx9 /* 8MHz * 9 => 72Mhz */
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#define STM32_PLL_FREQUENCY (72000000)
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/* SYCLLK and HCLK are the PLL frequency */
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#define STM32_SYSCLK_FREQUENCY STM32_PLL_FREQUENCY
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#define STM32_HCLK_FREQUENCY STM32_PLL_FREQUENCY
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#define STM32_BOARD_HCLK STM32_HCLK_FREQUENCY /* same as above, to satisfy compiler */
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/* APB2 clock (PCLK2) is HCLK (72MHz) */
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#define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLK
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#define STM32_PCLK2_FREQUENCY STM32_HCLK_FREQUENCY
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#define STM32_APB2_CLKIN (STM32_PCLK2_FREQUENCY) /* Timers 2-7, 12-14 */
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/* APB2 timers 1 and 8 will receive PCLK2. */
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#define STM32_APB2_TIM1_CLKIN (STM32_PCLK2_FREQUENCY)
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#define STM32_APB2_TIM8_CLKIN (STM32_PCLK2_FREQUENCY)
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/* APB1 clock (PCLK1) is HCLK/2 (36MHz) */
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#define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLKd2
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#define STM32_PCLK1_FREQUENCY (STM32_HCLK_FREQUENCY/2)
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/* APB1 timers 2-7 will be twice PCLK1 */
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#define STM32_APB1_TIM2_CLKIN (2*STM32_PCLK1_FREQUENCY)
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#define STM32_APB1_TIM3_CLKIN (2*STM32_PCLK1_FREQUENCY)
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#define STM32_APB1_TIM4_CLKIN (2*STM32_PCLK1_FREQUENCY)
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#define STM32_APB1_TIM5_CLKIN (2*STM32_PCLK1_FREQUENCY)
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#define STM32_APB1_TIM6_CLKIN (2*STM32_PCLK1_FREQUENCY)
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#define STM32_APB1_TIM7_CLKIN (2*STM32_PCLK1_FREQUENCY)
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/* MCO output driven by PLL3. From above, we already have PLL3 input frequency as:
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*
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* STM32_PLL_PREDIV2 = 5, 25MHz / 5 => 5MHz
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*/
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#if defined(CONFIG_STM32_MII_MCO) || defined(CONFIG_STM32_RMII_MCO)
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# define BOARD_CFGR_MCO_SOURCE RCC_CFGR_PLL3CLK /* Source: PLL3 */
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# define STM32_PLL_PLL3MUL RCC_CFGR2_PLL3MULx10 /* MCO 5MHz * 10 = 50MHz */
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#endif
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#endif /* __BOARDS_ARM_STM32_OLIMEX_STM32_P107_INCLUDE_BOARD_H */
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