nuttx/configs/stm32butterfly2/include/board.h
2016-08-15 17:34:43 +02:00

207 lines
7.8 KiB
C

/*******************************************************************************
* configs/stm32butterfly2/include/board.h
*
* Copyright (C) 2016 Michał Łyszczek. All rights reserved.
* Author: Michał Łyszczek <michal.lyszczek@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************/
#ifndef __CONFIGS_STM32_BUTTERFLY2_INCLUDE_BOARD_H
#define __CONFIGS_STM32_BUTTERFLY2_INCLUDE_BOARD_H 1
/*******************************************************************************
* Included Files
******************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
#endif
#include "stm32_rcc.h"
/*******************************************************************************
* Pre-processor Definitions
******************************************************************************/
/* Clocking *******************************************************************/
/* HSI - 8 MHz RC factory-trimmed
* LSI - 40 KHz RC (30-60KHz, uncalibrated)
* HSE - On-board crystal frequency is 14.7456MHz
* LSE - LSE is not connected
*/
#define STM32_BOARD_XTAL 14745600ul
#define STM32_HSI_FREQUENCY 8000000ul
#define STM32_LSI_FREQUENCY 40000u
#define STM32_HSE_FREQUENCY STM32_BOARD_XTAL
#define STM32_LSE_FREQUENCY 0
/* PLL output is 71.8848MHz */
#define STM32_PLL_PREDIV2 RCC_CFGR2_PREDIV2d4
#define STM32_PLL_PLL2MUL RCC_CFGR2_PLL2MULx12
#define STM32_PLL_PREDIV1 RCC_CFGR2_PREDIV1d4
#define STM32_PLL_PLLMUL RCC_CFGR_PLLMUL_CLKx65
#define STM32_PLL_FREQUENCY 71884800ul
/* SYSCLK and HCLK adre the PLL frequency */
#define STM32_SYSCLK_FREQUENCY STM32_PLL_FREQUENCY
#define STM32_HCLK_FREQUENCY STM32_PLL_FREQUENCY
#define STM32_BOARD_HCLK STM32_HCLK_FREQUENCY
/* APB2 clock (PCLK2) is HCLK */
#define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLK
#define STM32_PCLK2_FREQUENCY STM32_HCLK_FREQUENCY
#define STM32_APB2_CLKIN STM32_PCLK2_FREQUENCY
#define STM32APB_TIM1_CLKIN STM32_PCLK2_FREQUENCY
/* APB1 clock (PCLK1) is HCLK/2 (35.9424MHz) */
#define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLKd2
#define STM32_PCLK1_FREQUENCY (STM32_HCLK_FREQUENCY/2)
#define STM32_APB1_TIM2_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM3_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM4_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM5_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM6_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM7_CLKIN (2*STM32_PCLK1_FREQUENCY)
/* LED definitions ************************************************************/
/* There are four LEDs on stm32butterfly2 board that can be controlled by
* software. All pulled high and van be illuminated by driving the output low.
*
* LED1 PB0
* LED2 PB1
* LED3 PC4
* LED4 PC5
*/
/* LED index values for use with board_userled() */
#define BOARD_LED1 0
#define BOARD_LED2 1
#define BOARD_LED3 2
#define BOARD_LED4 3
#define BOARD_NLEDS 4
/* LED bits for use with board_userled_all() */
#define BOARD_LED1_BIT (1 << BOARD_LED1)
#define BOARD_LED2_BIT (1 << BOARD_LED2)
#define BOARD_LED3_BIT (1 << BOARD_LED3)
#define BOARD_LED4_BIT (1 << BOARD_LED4)
/* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is defined.
* In thath case, the usage by the board port is defined in include/board.h and
* src/stm32_leds.c. The LEDs are used to encode OS-related events as follows:
*
* SYMBOL Val Meaning LED state
* LED1 LED2 LED3 LED4
* ----------------- --- ----------------------- ---- ---- ---- ---- */
#define LED_STARTED 0 /* NuttX has been started ON OFF OFF OFF */
#define LED_HEAPALLOCATE 1 /* Heap has been allocated OFF ON OFF OFF */
#define LED_IRQSENABLED 2 /* Interrupts enabled OFF OFF ON OFF */
#define LED_STACKCREATED 3 /* Idle stack created OFF OFF OFF ON */
#define LED_INIRQ 5 /* In an interrupt N/C N/C N/C GLOW */
#define LED_SIGNAL 6 /* In a signal handler N/C N/C N/C GLOW */
#define LED_ASSERTION 7 /* An assertion failed N/C N/C N/C GLOW */
#define LED_PANIC 8 /* The system has crashed N/C N/C N/C FLASH */
#undef LED_IDLE /* MCU is is sleep mode Not used */
/* After booting, LED1-3 are not longer used by the system and can be used for
* other purposes by the application (Of course, all LEDs are available to the
* application if CONFIG_ARCH_LEDS is not defined.
*/
/* ADC configuration. Right now only ADC12_IN10 is supported (potentiometer) */
#ifdef CONFIG_STM32_ADC2
# error "CONFIG_STM32_ADC2 is not supported"
#endif
/* SPI configuration. Only SPI1 is supported */
#ifdef CONFIG_STM32_SPI2
# error "CONFIG_STM32_SPI2 is not supported"
#endif
/*******************************************************************************
* Public Data
******************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
/*******************************************************************************
* Public Function Prototypes
******************************************************************************/
/*******************************************************************************
* Name: stm32_led_initialize
*
* Description:
* Initializes board specific LEDS
******************************************************************************/
void stm32_led_initialize(void);
/*******************************************************************************
* Name: stm32_boardinitialize
*
* Description:
* All STM32 architectures must provide the following entry point. This
* entry point is called early in the initialization -- after all memory
* has been configured and mapped but before any devices have been
* initialized.
******************************************************************************/
EXTERN void stm32_boardinitialize(void);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __CONFIGS_STM32_BUTTERFLY2_INCLUDE_BOARD_H */