224 lines
8.4 KiB
C
224 lines
8.4 KiB
C
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/************************************************************************************
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* configs/stm32f100rc_generic/include/board.h
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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* Freddie Chopin <freddie_chopin@op.pl>
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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 __ARCH_BOARD_BOARD_H
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#define __ARCH_BOARD_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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#include "stm32_rcc.h"
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#include "stm32_internal.h"
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/************************************************************************************
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* Definitions
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************************************************************************************/
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/* Clocking *************************************************************************/
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/* On-board crystal frequency is 8MHz (HSE) */
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#define STM32_BOARD_XTAL 8000000ul
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/* PLL source is HSE / 1, PLL multiplier is 3: PLL output frequency is 8MHz (XTAL) x 3 = 24MHz */
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#define STM32_CFGR2_PREDIV1 RCC_CFGR2_PREDIV1d1
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#define STM32_CFGR_PLLSRC RCC_CFGR_PLLSRC
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#define STM32_CFGR_PLLXTPRE 0
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#define STM32_CFGR_PLLMUL RCC_CFGR_PLLMUL_CLKx3
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#define STM32_PLL_FREQUENCY (3 * STM32_BOARD_XTAL)
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/* Use the PLL and set the SYSCLK source to be the PLL */
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#define STM32_SYSCLK_SW RCC_CFGR_SW_PLL
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#define STM32_SYSCLK_SWS RCC_CFGR_SWS_PLL
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#define STM32_SYSCLK_FREQUENCY STM32_PLL_FREQUENCY
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/* AHB clock (HCLK) is SYSCLK (24MHz) */
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#define STM32_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK
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#define STM32_HCLK_FREQUENCY STM32_PLL_FREQUENCY
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/* APB2 clock (PCLK2) is HCLK (24MHz) */
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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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/* APB2 timers (1, 15-17) will receive PCLK2. */
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#define STM32_APB2_TIM1_CLKIN STM32_PCLK2_FREQUENCY
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#define STM32_APB2_TIM15_CLKIN STM32_PCLK2_FREQUENCY
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#define STM32_APB2_TIM16_CLKIN STM32_PCLK2_FREQUENCY
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#define STM32_APB2_TIM17_CLKIN STM32_PCLK2_FREQUENCY
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/* APB1 clock (PCLK1) is HCLK (24MHz) */
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#define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLK
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#define STM32_PCLK1_FREQUENCY STM32_HCLK_FREQUENCY
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/* APB1 timers (2-7, 12-14) will receive PCLK1. */
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#define STM32_APB1_TIM2_CLKIN STM32_PCLK1_FREQUENCY
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#define STM32_APB1_TIM3_CLKIN STM32_PCLK1_FREQUENCY
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#define STM32_APB1_TIM4_CLKIN STM32_PCLK1_FREQUENCY
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#define STM32_APB1_TIM5_CLKIN STM32_PCLK1_FREQUENCY
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#define STM32_APB1_TIM6_CLKIN STM32_PCLK1_FREQUENCY
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#define STM32_APB1_TIM7_CLKIN STM32_PCLK1_FREQUENCY
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#define STM32_APB1_TIM12_CLKIN STM32_PCLK1_FREQUENCY
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#define STM32_APB1_TIM13_CLKIN STM32_PCLK1_FREQUENCY
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#define STM32_APB1_TIM14_CLKIN STM32_PCLK1_FREQUENCY
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/* Timer Frequencies, if APBx is set to 1, frequency is same to APBx
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* otherwise frequency is 2xAPBx.
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* Note: TIM1,15-17 are on APB2, others on APB1 */
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#define STM32_TIM18_FREQUENCY STM32_HCLK_FREQUENCY
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#define STM32_TIM27_FREQUENCY STM32_HCLK_FREQUENCY
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/* LED definitions ******************************************************************/
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/* It is assumed that a generic board has 1 LED. Thus only two different states
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* can be shown. Statuses defined as "1" will light the LED, the ones defined as
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* "0" will turn the LED off. */
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#define LED_STARTED 1
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#define LED_HEAPALLOCATE 1
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#define LED_IRQSENABLED 1
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#define LED_STACKCREATED 1
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#define LED_INIRQ 1
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#define LED_SIGNAL 1
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#define LED_ASSERTION 0
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#define LED_PANIC 0
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/* Button definitions ***************************************************************/
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/* It is assumed that a generic board has 1 button. */
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#define BUTTON_0 0
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#define NUM_BUTTONS 1
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#define BUTTON_0_BIT (1 << BUTTON_0)
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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_boardinitialize
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*
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* Description:
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* All STM32 architectures must provide the following entry point. This entry point
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* is called early in the intitialization -- after all memory has been configured
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* and mapped but before any devices have been initialized.
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*
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************************************************************************************/
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EXTERN void stm32_boardinitialize(void);
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/************************************************************************************
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* Name: stm32_ledinit, stm32_setled, and stm32_setleds
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*
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* Description:
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* If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board LEDs. If
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* CONFIG_ARCH_LEDS is not defined, then the following interfacesare available to
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* control the LEDs from user applications.
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*
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************************************************************************************/
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#ifndef CONFIG_ARCH_LEDS
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EXTERN void stm32_ledinit(void);
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EXTERN void stm32_setled(int led, bool ledon);
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EXTERN void stm32_setleds(uint8_t ledset);
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#endif
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/************************************************************************************
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* Button support.
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*
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* Description:
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* up_buttoninit() must be called to initialize button resources. After
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* that, up_buttons() may be called to collect the current state of all
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* buttons or up_irqbutton() may be called to register button interrupt
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* handlers.
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*
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* After up_buttoninit() has been called, up_buttons() may be called to
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* collect the state of all buttons. up_buttons() returns an 8-bit bit set
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* with each bit associated with a button. See the BUTTON_*_BIT and JOYSTICK_*_BIT
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* definitions in board.h for the meaning of each bit.
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*
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* up_irqbutton() may be called to register an interrupt handler that will
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* be called when a button is depressed or released. The ID value is a
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* button enumeration value that uniquely identifies a button resource. See the
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* BUTTON_* and JOYSTICK_* definitions in board.h for the meaning of enumeration
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* value. The previous interrupt handler address is returned (so that it may
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* restored, if so desired).
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*
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************************************************************************************/
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#ifdef CONFIG_ARCH_BUTTONS
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EXTERN void up_buttoninit(void);
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EXTERN uint8_t up_buttons(void);
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#ifdef CONFIG_ARCH_IRQBUTTONS
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EXTERN xcpt_t up_irqbutton(int id, xcpt_t irqhandler);
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#endif
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#endif
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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 /* __ARCH_BOARD_BOARD_H */
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