157 lines
5.7 KiB
C
157 lines
5.7 KiB
C
/****************************************************************************
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* boards/arm/stm32/stm32butterfly2/include/board.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __BOARDS_ARM_STM32_STM32_BUTTERFLY2_INCLUDE_BOARD_H
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#define __BOARDS_ARM_STM32_STM32_BUTTERFLY2_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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/****************************************************************************
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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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/* USB clock output is 47.9232MHz */
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#define STM32_CFGR_OTGFSPRE RCC_CFGR_OTGFSPREd3
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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.
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* 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
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* defined. In thath case, the usage by the board port is defined in
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* include/board.h and src/stm32_leds.c. The LEDs are used to encode
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* 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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*/
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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
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* for other purposes by the application (Of course, all LEDs are available
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* to the 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
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* (potentiometer)
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*/
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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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#endif /* __BOARDS_ARM_STM32_STM32_BUTTERFLY2_INCLUDE_BOARD_H */
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