361 lines
12 KiB
C
361 lines
12 KiB
C
/************************************************************************************
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* configs/stm32f411e-disco/include/board.h
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*
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* Copyright (C) 2016 Gregory Nutt. All rights reserved.
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* Author: Konstantin Berezenko <kpberezenko@gmail.com>
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*
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* based on configs/nucleo-f4x1re/include/board.h
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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 __CONFIGS_STM32F411E_DISCO_INCLUDE_BOARD_H
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#define __CONFIGS_STM32F411E_DISCO_INCLUDE_BOARD_H
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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.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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/*
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* System Clock source : PLLCLK (HSE)
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* SYSCLK(Hz) : 96000000 Determined by PLL configuration
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* HCLK(Hz) : 96000000 (STM32_RCC_CFGR_HPRE)
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* AHB Prescaler : 1 (STM32_RCC_CFGR_HPRE)
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* APB1 Prescaler : 4 (STM32_RCC_CFGR_PPRE1)
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* APB2 Prescaler : 2 (STM32_RCC_CFGR_PPRE2)
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* HSI Frequency(Hz) : 16000000 (nominal)
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* PLLM : 4 (STM32_PLLCFG_PLLM)
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* PLLN : 192 (STM32_PLLCFG_PLLN)
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* PLLP : 4 (STM32_PLLCFG_PLLP)
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* PLLQ : 8 (STM32_PLLCFG_PPQ)
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* Flash Latency(WS) : 3
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* Prefetch Buffer : OFF
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* Instruction cache : ON
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* Data cache : ON
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* Require 48MHz for USB OTG FS, : Enabled
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* SDIO and RNG clock
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*/
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/* HSI - 16 MHz RC factory-trimmed
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* LSI - 32 KHz RC
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* HSE - 8 MHz Crystal
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* LSE - not installed
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*/
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#define STM32_BOARD_XTAL 8000000ul
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#define STM32_HSI_FREQUENCY 16000000ul
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#define STM32_LSI_FREQUENCY 32000
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#define STM32_HSE_FREQUENCY STM32_BOARD_XTAL
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/* Main PLL Configuration.
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*
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* Formulae:
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*
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* VCO input frequency = PLL input clock frequency / PLLM, 2 <= PLLM <= 63
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* VCO output frequency = VCO input frequency × PLLN, 192 <= PLLN <= 432
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* PLL output clock frequency = VCO frequency / PLLP, PLLP = 2, 4, 6, or 8
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* USB OTG FS clock frequency = VCO frequency / PLLQ, 2 <= PLLQ <= 15
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*
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* There is no config for 100 MHz and 48 MHz for usb,
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* so we would like to have SYSYCLK=96MHz and we must have the USB clock= 48MHz.
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*
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* PLLQ = 8 PLLP = 4 PLLN=192 PLLM=4
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*
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* We will configure like this
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*
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* PLL source is HSE
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* PLL_VCO = (STM32_HSE_FREQUENCY / PLLM) * PLLN
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* = (8,000,000 / 4) * 192
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* = 384,000,000
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* SYSCLK = PLL_VCO / PLLP
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* = 384,000,000 / 4 = 96,000,000
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* USB OTG FS and SDIO Clock
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* = PLL_VCO / PLLQ
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* = 384,000,000 / 8 = 48,000,000
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*/
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#define STM32_PLLCFG_PLLM RCC_PLLCFG_PLLM(4)
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#define STM32_PLLCFG_PLLN RCC_PLLCFG_PLLN(192)
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#define STM32_PLLCFG_PLLP RCC_PLLCFG_PLLP_4
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#define STM32_PLLCFG_PLLQ RCC_PLLCFG_PLLQ(8)
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#define STM32_SYSCLK_FREQUENCY 96000000ul
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/* AHB clock (HCLK) is SYSCLK (96MHz) */
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#define STM32_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK /* HCLK = SYSCLK / 1 */
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#define STM32_HCLK_FREQUENCY STM32_SYSCLK_FREQUENCY
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#define STM32_BOARD_HCLK STM32_HCLK_FREQUENCY /* Same as above, to satisfy compiler */
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/* APB1 clock (PCLK1) is HCLK/4 (24MHz) */
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#define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLKd4 /* PCLK1 = HCLK / 4 */
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#define STM32_PCLK1_FREQUENCY (STM32_HCLK_FREQUENCY/4)
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/* Timers driven from APB1 will be twice PCLK1 */
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/* REVISIT */
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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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#define STM32_APB1_TIM12_CLKIN (2*STM32_PCLK1_FREQUENCY)
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#define STM32_APB1_TIM13_CLKIN (2*STM32_PCLK1_FREQUENCY)
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#define STM32_APB1_TIM14_CLKIN (2*STM32_PCLK1_FREQUENCY)
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/* APB2 clock (PCLK2) is HCLK (48MHz) */
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#define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLKd2 /* PCLK2 = HCLK / 2 */
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#define STM32_PCLK2_FREQUENCY (STM32_HCLK_FREQUENCY/2)
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/* Timers driven from APB2 will be twice PCLK2 */
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#define STM32_APB2_TIM1_CLKIN (2*STM32_PCLK2_FREQUENCY)
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#define STM32_APB2_TIM8_CLKIN (2*STM32_PCLK2_FREQUENCY)
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#define STM32_APB2_TIM9_CLKIN (2*STM32_PCLK1_FREQUENCY)
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#define STM32_APB2_TIM10_CLKIN (2*STM32_PCLK1_FREQUENCY)
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#define STM32_APB2_TIM11_CLKIN (2*STM32_PCLK1_FREQUENCY)
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/* Timer Frequencies, if APBx is set to 1, frequency is same to APBx
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* otherwise frequency is 2xAPBx.
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* Note: TIM1,8 are on APB2, others on APB1
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*/
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/* REVISIT */
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#define STM32_TIM18_FREQUENCY (2*STM32_PCLK2_FREQUENCY)
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#define STM32_TIM27_FREQUENCY (2*STM32_PCLK1_FREQUENCY)
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/* SDIO dividers. Note that slower clocking is required when DMA is disabled
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* in order to avoid RX overrun/TX underrun errors due to delayed responses
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* to service FIFOs in interrupt driven mode. These values have not been
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* tuned!!!
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*
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* HCLK=72MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(178+2)=400 KHz
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*/
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/* REVISIT */
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#define SDIO_INIT_CLKDIV (178 << SDIO_CLKCR_CLKDIV_SHIFT)
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/* DMA ON: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(2+2)=18 MHz
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* DMA OFF: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(3+2)=14.4 MHz
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*/
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/* REVISIT */
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#ifdef CONFIG_SDIO_DMA
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# define SDIO_MMCXFR_CLKDIV (2 << SDIO_CLKCR_CLKDIV_SHIFT)
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#else
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# define SDIO_MMCXFR_CLKDIV (3 << SDIO_CLKCR_CLKDIV_SHIFT)
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#endif
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/* DMA ON: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(1+2)=24 MHz
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* DMA OFF: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(3+2)=14.4 MHz
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*/
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/* REVISIT */
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#ifdef CONFIG_SDIO_DMA
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# define SDIO_SDXFR_CLKDIV (1 << SDIO_CLKCR_CLKDIV_SHIFT)
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#else
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# define SDIO_SDXFR_CLKDIV (3 << SDIO_CLKCR_CLKDIV_SHIFT)
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#endif
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/* DMA Channel/Stream Selections ****************************************************/
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/* Stream selections are arbitrary for now but might become important in the future
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* is we set aside more DMA channels/streams.
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*
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* SDIO DMA
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* DMAMAP_SDIO_1 = Channel 4, Stream 3 <- may later be used by SPI DMA
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* DMAMAP_SDIO_2 = Channel 4, Stream 6
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*/
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#define DMAMAP_SDIO DMAMAP_SDIO_1
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/* Need to VERIFY fwb */
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#define DMACHAN_SPI1_RX DMAMAP_SPI1_RX_1
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#define DMACHAN_SPI1_TX DMAMAP_SPI1_TX_1
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#define DMACHAN_SPI2_RX DMAMAP_SPI2_RX
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#define DMACHAN_SPI2_TX DMAMAP_SPI2_TX
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/* Alternate function pin selections ************************************************/
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/* USART1:
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* RXD: PA10 CN9 pin 3, CN10 pin 33
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* PB7 CN7 pin 21
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* TXD: PA9 CN5 pin 1, CN10 pin 21
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* PB6 CN5 pin 3, CN10 pin 17
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*/
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#if 1
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# define GPIO_USART1_RX GPIO_USART1_RX_1 /* PA10 */
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# define GPIO_USART1_TX GPIO_USART1_TX_1 /* PA9 */
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#else
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# define GPIO_USART1_RX GPIO_USART1_RX_2 /* PB7 */
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# define GPIO_USART1_TX GPIO_USART1_TX_2 /* PB6 */
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#endif
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/* USART2:
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* RXD: PA3 CN9 pin 1 (See SB13, 14, 62, 63). CN10 pin 37
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* PD6
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* TXD: PA2 CN9 pin 2(See SB13, 14, 62, 63). CN10 pin 35
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* PD5
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*/
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#define GPIO_USART2_RX GPIO_USART2_RX_1 /* PA3 */
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#define GPIO_USART2_TX GPIO_USART2_TX_1 /* PA2 */
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#define GPIO_USART2_RTS GPIO_USART2_RTS_2
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#define GPIO_USART2_CTS GPIO_USART2_CTS_2
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/* USART6:
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* RXD: PC7 CN5 pin2, CN10 pin 19
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* PA12 CN10, pin 12
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* TXD: PC6 CN10, pin 4
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* PA11 CN10, pin 14
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*/
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#define GPIO_USART6_RX GPIO_USART6_RX_1 /* PC7 */
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#define GPIO_USART6_TX GPIO_USART6_TX_1 /* PC6 */
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/* UART RX DMA configurations */
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#define DMAMAP_USART1_RX DMAMAP_USART1_RX_2
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#define DMAMAP_USART6_RX DMAMAP_USART6_RX_2
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/* I2C
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*
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* The optional _GPIO configurations allow the I2C driver to manually
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* reset the bus to clear stuck slaves. They match the pin configuration,
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* but are normally-high GPIOs.
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*/
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#define GPIO_I2C1_SCL GPIO_I2C1_SCL_2
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#define GPIO_I2C1_SDA GPIO_I2C1_SDA_2
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#define GPIO_I2C1_SCL_GPIO \
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(GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN8)
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#define GPIO_I2C1_SDA_GPIO \
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(GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN9)
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#define GPIO_I2C2_SCL GPIO_I2C2_SCL_1
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#define GPIO_I2C2_SDA GPIO_I2C2_SDA_1
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#define GPIO_I2C2_SCL_GPIO \
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(GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN10)
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#define GPIO_I2C2_SDA_GPIO \
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(GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN11)
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/* SPI
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*
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* There are sensors on SPI1, and SPI2 is connected to the FRAM.
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*/
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#define GPIO_SPI1_MISO GPIO_SPI1_MISO_1
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#define GPIO_SPI1_MOSI GPIO_SPI1_MOSI_1
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#define GPIO_SPI1_SCK GPIO_SPI1_SCK_1
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#define GPIO_SPI2_MISO GPIO_SPI2_MISO_1
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#define GPIO_SPI2_MOSI GPIO_SPI2_MOSI_1
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#define GPIO_SPI2_SCK GPIO_SPI2_SCK_2
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/* LEDs
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*
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* The STM32F411E Discovery board has four user leds but only one is configured so far.
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* LD2 connected to PD12.
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*/
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/* LED index values for use with board_userled() */
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#define BOARD_LD2 0
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#define BOARD_NLEDS 1
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/* LED bits for use with board_userled_all() */
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#define BOARD_LD2_BIT (1 << BOARD_LD2)
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/* Buttons
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*
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* B1 USER: the user button is connected to the I/O PA0 of the STM32
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* microcontroller.
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*/
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#define BUTTON_USER 0
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#define NUM_BUTTONS 1
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#define BUTTON_USER_BIT (1 << BUTTON_USER)
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/************************************************************************************
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* Public Data
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************************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/************************************************************************************
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* Public Function Prototypes
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************************************************************************************/
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/************************************************************************************
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* Name: stm32_boardinitialize
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*
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* Description:
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* All STM32 architectures must provide the following entry point. This entry point
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* is called early in the initialization -- after all memory has been configured
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* and mapped but before any devices have been initialized.
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*
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************************************************************************************/
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void stm32_boardinitialize(void);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __CONFIGS_STM32F411E_DISCO_INCLUDE_BOARD_H */
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