/******************************************************************************* * configs/stm32butterfly2/include/board.h * * Copyright (C) 2016 Michał Łyszczek. All rights reserved. * Author: Michał Łyszczek * * 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 #ifndef __ASSEMBLY__ # include #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 /* USB clock output is 47.9232MHz */ #define STM32_CFGR_OTGFSPRE RCC_CFGR_OTGFSPREd3 /* 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_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. ******************************************************************************/ void stm32_boardinitialize(void); #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __CONFIGS_STM32_BUTTERFLY2_INCLUDE_BOARD_H */