207 lines
7.8 KiB
C
207 lines
7.8 KiB
C
/*******************************************************************************
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* configs/stm32butterfly2/include/board.h
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*
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* Copyright (C) 2016 Michał Łyszczek. All rights reserved.
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* Author: Michał Łyszczek <michal.lyszczek@gmail.com>
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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_STM32_BUTTERFLY2_INCLUDE_BOARD_H
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#define __CONFIGS_STM32_BUTTERFLY2_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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/*******************************************************************************
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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 14.7456MHz
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* LSE - LSE is not connected
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*/
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#define STM32_BOARD_XTAL 14745600ul
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#define STM32_HSI_FREQUENCY 8000000ul
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#define STM32_LSI_FREQUENCY 40000u
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#define STM32_HSE_FREQUENCY STM32_BOARD_XTAL
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#define STM32_LSE_FREQUENCY 0
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/* PLL output is 71.8848MHz */
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#define STM32_PLL_PREDIV2 RCC_CFGR2_PREDIV2d4
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#define STM32_PLL_PLL2MUL RCC_CFGR2_PLL2MULx12
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#define STM32_PLL_PREDIV1 RCC_CFGR2_PREDIV1d4
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#define STM32_PLL_PLLMUL RCC_CFGR_PLLMUL_CLKx65
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#define STM32_PLL_FREQUENCY 71884800ul
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/* SYSCLK and HCLK adre 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
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/* APB2 clock (PCLK2) is HCLK */
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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
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#define STM32APB_TIM1_CLKIN STM32_PCLK2_FREQUENCY
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/* APB1 clock (PCLK1) is HCLK/2 (35.9424MHz) */
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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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#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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/* LED definitions ************************************************************/
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/* There are four LEDs on stm32butterfly2 board that can be controlled by
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* software. All pulled high and van be illuminated by driving the output low.
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*
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* LED1 PB0
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* LED2 PB1
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* LED3 PC4
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* LED4 PC5
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*/
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/* LED index values for use with board_userled() */
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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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/* LED bits for use with board_userled_all() */
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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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/* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is defined.
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* In thath case, the usage by the board port is defined in include/board.h and
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* src/stm32_leds.c. The LEDs are used to encode OS-related events as follows:
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*
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* SYMBOL Val Meaning LED state
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* LED1 LED2 LED3 LED4
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* ----------------- --- ----------------------- ---- ---- ---- ---- */
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#define LED_STARTED 0 /* NuttX has been started ON OFF OFF OFF */
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#define LED_HEAPALLOCATE 1 /* Heap has been allocated OFF ON OFF OFF */
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#define LED_IRQSENABLED 2 /* Interrupts enabled OFF OFF ON OFF */
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#define LED_STACKCREATED 3 /* Idle stack created OFF OFF OFF ON */
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#define LED_INIRQ 5 /* In an interrupt N/C N/C N/C GLOW */
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#define LED_SIGNAL 6 /* In a signal handler N/C N/C N/C GLOW */
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#define LED_ASSERTION 7 /* An assertion failed N/C N/C N/C GLOW */
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#define LED_PANIC 8 /* The system has crashed N/C N/C N/C FLASH */
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#undef LED_IDLE /* MCU is is sleep mode Not used */
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/* After booting, LED1-3 are not longer used by the system and can be used for
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* other purposes by the application (Of course, all LEDs are available to the
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* application if CONFIG_ARCH_LEDS is not defined.
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*/
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/* ADC configuration. Right now only ADC12_IN10 is supported (potentiometer) */
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#ifdef CONFIG_STM32_ADC2
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# error "CONFIG_STM32_ADC2 is not supported"
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#endif
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/* SPI configuration. Only SPI1 is supported */
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#ifdef CONFIG_STM32_SPI2
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# error "CONFIG_STM32_SPI2 is not supported"
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#endif
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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_led_initialize
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*
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* Description:
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* Initializes board specific LEDS
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******************************************************************************/
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void stm32_led_initialize(void);
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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
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* entry point is called early in the initialization -- after all memory
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* has been configured and mapped but before any devices have been
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* initialized.
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******************************************************************************/
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EXTERN 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_STM32_BUTTERFLY2_INCLUDE_BOARD_H */
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