/************************************************************************************ * configs/stm32f100rc_generic/include/board.h * * Copyright (C) 2012 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * Freddie Chopin * * 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 __ARCH_BOARD_BOARD_H #define __ARCH_BOARD_BOARD_H /************************************************************************************ * Included Files ************************************************************************************/ #include #ifndef __ASSEMBLY__ # include #endif #include "stm32_rcc.h" #include "stm32.h" /************************************************************************************ * Definitions ************************************************************************************/ /* Clocking *************************************************************************/ /* On-board crystal frequency is 8MHz (HSE) */ #define STM32_BOARD_XTAL 8000000ul /* PLL source is HSE / 1, PLL multiplier is 3: PLL output frequency is 8MHz (XTAL) x 3 = 24MHz */ #define STM32_CFGR2_PREDIV1 RCC_CFGR2_PREDIV1d1 #define STM32_CFGR_PLLSRC RCC_CFGR_PLLSRC #define STM32_CFGR_PLLXTPRE 0 #define STM32_CFGR_PLLMUL RCC_CFGR_PLLMUL_CLKx3 #define STM32_PLL_FREQUENCY (3 * STM32_BOARD_XTAL) /* Use the PLL and set the SYSCLK source to be the PLL */ #define STM32_SYSCLK_SW RCC_CFGR_SW_PLL #define STM32_SYSCLK_SWS RCC_CFGR_SWS_PLL #define STM32_SYSCLK_FREQUENCY STM32_PLL_FREQUENCY /* AHB clock (HCLK) is SYSCLK (24MHz) */ #define STM32_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK #define STM32_HCLK_FREQUENCY STM32_PLL_FREQUENCY /* APB2 clock (PCLK2) is HCLK (24MHz) */ #define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLK #define STM32_PCLK2_FREQUENCY STM32_HCLK_FREQUENCY /* APB2 timers (1, 15-17) will receive PCLK2. */ #define STM32_APB2_TIM1_CLKIN STM32_PCLK2_FREQUENCY #define STM32_APB2_TIM15_CLKIN STM32_PCLK2_FREQUENCY #define STM32_APB2_TIM16_CLKIN STM32_PCLK2_FREQUENCY #define STM32_APB2_TIM17_CLKIN STM32_PCLK2_FREQUENCY /* APB1 clock (PCLK1) is HCLK (24MHz) */ #define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLK #define STM32_PCLK1_FREQUENCY STM32_HCLK_FREQUENCY /* APB1 timers (2-7, 12-14) will receive PCLK1. */ #define STM32_APB1_TIM2_CLKIN STM32_PCLK1_FREQUENCY #define STM32_APB1_TIM3_CLKIN STM32_PCLK1_FREQUENCY #define STM32_APB1_TIM4_CLKIN STM32_PCLK1_FREQUENCY #define STM32_APB1_TIM5_CLKIN STM32_PCLK1_FREQUENCY #define STM32_APB1_TIM6_CLKIN STM32_PCLK1_FREQUENCY #define STM32_APB1_TIM7_CLKIN STM32_PCLK1_FREQUENCY #define STM32_APB1_TIM12_CLKIN STM32_PCLK1_FREQUENCY #define STM32_APB1_TIM13_CLKIN STM32_PCLK1_FREQUENCY #define STM32_APB1_TIM14_CLKIN STM32_PCLK1_FREQUENCY /* Timer Frequencies, if APBx is set to 1, frequency is same to APBx * otherwise frequency is 2xAPBx. * Note: TIM1,15-17 are on APB2, others on APB1 */ #define STM32_TIM18_FREQUENCY STM32_HCLK_FREQUENCY #define STM32_TIM27_FREQUENCY STM32_HCLK_FREQUENCY /* LED definitions ******************************************************************/ /* It is assumed that a generic board has 1 LED. Thus only two different states * can be shown. Statuses defined as "1" will light the LED, the ones defined as * "0" will turn the LED off. */ #define LED_STARTED 1 #define LED_HEAPALLOCATE 1 #define LED_IRQSENABLED 1 #define LED_STACKCREATED 1 #define LED_INIRQ 1 #define LED_SIGNAL 1 #define LED_ASSERTION 0 #define LED_PANIC 0 /* Button definitions ***************************************************************/ /* It is assumed that a generic board has 1 button. */ #define BUTTON_0 0 #define NUM_BUTTONS 1 #define BUTTON_0_BIT (1 << BUTTON_0) /************************************************************************************ * 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 intitialization -- after all memory has been configured * and mapped but before any devices have been initialized. * ************************************************************************************/ EXTERN void stm32_boardinitialize(void); /************************************************************************************ * Name: stm32_ledinit, stm32_setled, and stm32_setleds * * Description: * If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board LEDs. If * CONFIG_ARCH_LEDS is not defined, then the following interfacesare available to * control the LEDs from user applications. * ************************************************************************************/ #ifndef CONFIG_ARCH_LEDS EXTERN void stm32_ledinit(void); EXTERN void stm32_setled(int led, bool ledon); EXTERN void stm32_setleds(uint8_t ledset); #endif /************************************************************************************ * Button support. * * Description: * up_buttoninit() must be called to initialize button resources. After * that, up_buttons() may be called to collect the current state of all * buttons or up_irqbutton() may be called to register button interrupt * handlers. * * After up_buttoninit() has been called, up_buttons() may be called to * collect the state of all buttons. up_buttons() returns an 8-bit bit set * with each bit associated with a button. See the BUTTON_*_BIT and JOYSTICK_*_BIT * definitions in board.h for the meaning of each bit. * * up_irqbutton() may be called to register an interrupt handler that will * be called when a button is depressed or released. The ID value is a * button enumeration value that uniquely identifies a button resource. See the * BUTTON_* and JOYSTICK_* definitions in board.h for the meaning of enumeration * value. The previous interrupt handler address is returned (so that it may * restored, if so desired). * ************************************************************************************/ #ifdef CONFIG_ARCH_BUTTONS EXTERN void up_buttoninit(void); EXTERN uint8_t up_buttons(void); #ifdef CONFIG_ARCH_IRQBUTTONS EXTERN xcpt_t up_irqbutton(int id, xcpt_t irqhandler); #endif #endif #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __ARCH_BOARD_BOARD_H */