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323 lines
12 KiB
323 lines
12 KiB
/************************************************************************************ |
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* configs/stm32f4discovery/include/board.h |
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* include/arch/board/board.h |
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* |
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* Copyright (C) 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 __CONFIG_STM32F4DISCOVERY_INCLUDE_BOARD_H |
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#define __CONFIG_STM32F4DISCOVERY_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_rcc.h" |
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#include "stm32_sdio.h" |
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#include "stm32_internal.h" |
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/************************************************************************************ |
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* Definitions |
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************************************************************************************/ |
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/* Clocking *************************************************************************/ |
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/* The STM32F4 Discovery board features a single 8MHz crystal. Space is provided |
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* for a 32kHz RTC backup crystal, but it is not stuffed. |
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* |
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* This is the canonical configuration: |
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* System Clock source : PLL (HSE) |
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* SYSCLK(Hz) : 168000000 Determined by PLL configuration |
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* HCLK(Hz) : 168000000 (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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* HSE Frequency(Hz) : 25000000 (STM32_BOARD_XTAL) |
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* PLLM : 8 (STM32_PLLCFG_PLLM) |
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* PLLN : 336 (STM32_PLLCFG_PLLN) |
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* PLLP : 2 (STM32_PLLCFG_PLLP) |
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* PLLQ : 7 (STM32_PLLCFG_PLLQ) |
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* Main regulator output voltage : Scale1 mode Needed for high speed SYSCLK |
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* Flash Latency(WS) : 5 |
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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 - 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 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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#define STM32_LSE_FREQUENCY 32768 |
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/* Main PLL Configuration. |
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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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* = (25,000,000 / 25) * 336 |
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* = 336,000,000 |
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* SYSCLK = PLL_VCO / PLLP |
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* = 336,000,000 / 2 = 168,000,000 |
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* USB OTG FS, SDIO and RNG Clock |
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* = PLL_VCO / PLLQ |
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* = 48,000,000 |
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*/ |
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#define STM32_PLLCFG_PLLM RCC_PLLCFG_PLLM(8) |
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#define STM32_PLLCFG_PLLN RCC_PLLCFG_PLLN(336) |
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#define STM32_PLLCFG_PLLP RCC_PLLCFG_PLLP_2 |
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#define STM32_PLLCFG_PLLQ RCC_PLLCFG_PLLQ(7) |
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#define STM32_SYSCLK_FREQUENCY 168000000ul |
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/* AHB clock (HCLK) is SYSCLK (168MHz) */ |
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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 (42MHz) */ |
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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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#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/2 (84MHz) */ |
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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_PCLK2_FREQUENCY) |
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#define STM32_APB2_TIM10_CLKIN (2*STM32_PCLK2_FREQUENCY) |
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#define STM32_APB2_TIM11_CLKIN (2*STM32_PCLK2_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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#define STM32_TIM18_FREQUENCY STM32_HCLK_FREQUENCY |
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#define STM32_TIM27_FREQUENCY STM32_HCLK_FREQUENCY |
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/* LED definitions ******************************************************************/ |
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/* If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in any |
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* way. The following definitions are used to access individual LEDs. |
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*/ |
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/* LED index values for use with stm32_setled() */ |
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#define BOARD_LED1 0 |
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#define BOARD_LED2 1 |
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#define BOARD_LED3 2 |
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#define BOARD_LED4 3 |
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#define BOARD_NLEDS 4 |
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#define BOARD_LED_GREEN BOARD_LED1 |
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#define BOARD_LED_ORANGE BOARD_LED2 |
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#define BOARD_LED_RED BOARD_LED3 |
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#define BOARD_LED_BLUE BOARD_LED4 |
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/* LED bits for use with stm32_setleds() */ |
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#define BOARD_LED1_BIT (1 << BOARD_LED1) |
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#define BOARD_LED2_BIT (1 << BOARD_LED2) |
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#define BOARD_LED3_BIT (1 << BOARD_LED3) |
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#define BOARD_LED4_BIT (1 << BOARD_LED4) |
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/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the 4 LEDs on board the |
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* stm32f4discovery. The following definitions describe how NuttX controls the LEDs: |
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*/ |
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#define LED_STARTED 0 /* LED1 */ |
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#define LED_HEAPALLOCATE 1 /* LED2 */ |
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#define LED_IRQSENABLED 2 /* LED1 + LED2 */ |
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#define LED_STACKCREATED 3 /* LED3 */ |
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#define LED_INIRQ 4 /* LED1 + LED3 */ |
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#define LED_SIGNAL 5 /* LED2 + LED3 */ |
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#define LED_ASSERTION 6 /* LED1 + LED2 + LED3 */ |
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#define LED_PANIC 7 /* N/C + N/C + N/C + LED4 */ |
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/* Button definitions ***************************************************************/ |
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/* The STM32F4 Discovery supports one button: */ |
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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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/* Alternate function pin selections ************************************************/ |
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/* UART2: |
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* |
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* The STM32F4 Discovery has no on-board serial devices, but the console is |
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* brought out to PA2 (TX) and PA3 (RX) for connection to an external serial device. |
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* (See the README.txt file for other options) |
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*/ |
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#define GPIO_USART2_RX GPIO_USART2_RX_1 |
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#define GPIO_USART2_TX GPIO_USART2_TX_1 |
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/* PWM |
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* |
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* The STM32F4 Discovery has no real on-board PWM devices, but the board can be |
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* configured to output a pulse train using TIM4 CH2 on PD13. |
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*/ |
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#define GPIO_TIM4_CH2OUT GPIO_TIM4_CH2OUT_2 |
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/* SPI */ |
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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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/* Timer Inputs/Outputs (see the README.txt file for options) */ |
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#define GPIO_TIM2_CH1IN GPIO_TIM2_CH1IN_2 |
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#define GPIO_TIM2_CH2IN GPIO_TIM2_CH2IN_1 |
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#define GPIO_TIM8_CH1IN GPIO_TIM8_CH1IN_1 |
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#define GPIO_TIM8_CH2IN GPIO_TIM8_CH2IN_1 |
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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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#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 intitialization -- 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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EXTERN void stm32_boardinitialize(void); |
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/************************************************************************************ |
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* Name: stm32_ledinit, stm32_setled, and stm32_setleds |
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* |
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* Description: |
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* If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board LEDs. If |
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* CONFIG_ARCH_LEDS is not defined, then the following interfacesare available to |
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* control the LEDs from user applications. |
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* |
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************************************************************************************/ |
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#ifndef CONFIG_ARCH_LEDS |
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EXTERN void stm32_ledinit(void); |
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EXTERN void stm32_setled(int led, bool ledon); |
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EXTERN void stm32_setleds(uint8_t ledset); |
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#endif |
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/************************************************************************************ |
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* Button support. |
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* |
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* Description: |
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* up_buttoninit() must be called to initialize button resources. After |
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* that, up_buttons() may be called to collect the current state of all |
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* buttons or up_irqbutton() may be called to register button interrupt |
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* handlers. |
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* |
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* After up_buttoninit() has been called, up_buttons() may be called to |
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* collect the state of all buttons. up_buttons() returns an 8-bit bit set |
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* with each bit associated with a button. See the BUTTON_*_BIT |
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* definitions in board.h for the meaning of each bit. |
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* |
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* up_irqbutton() may be called to register an interrupt handler that will |
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* be called when a button is depressed or released. The ID value is a |
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* button enumeration value that uniquely identifies a button resource. See the |
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* BUTTON_* definitions in board.h for the meaning of enumeration |
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* value. The previous interrupt handler address is returned (so that it may |
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* restored, if so desired). |
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* |
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************************************************************************************/ |
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#ifdef CONFIG_ARCH_BUTTONS |
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EXTERN void up_buttoninit(void); |
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EXTERN uint8_t up_buttons(void); |
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#ifdef CONFIG_ARCH_IRQBUTTONS |
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EXTERN xcpt_t up_irqbutton(int id, xcpt_t irqhandler); |
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#endif |
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#endif |
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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 /* __CONFIG_STM32F4DISCOVERY_INCLUDE_BOARD_H */
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