224 lines
8.5 KiB
C
224 lines
8.5 KiB
C
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/************************************************************************************
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* configs/olimexino-stm32/include/board.h
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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* David Sidrane <david_s5@nscdg.com>
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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 __CONFIGS_OLIMEXINO_STM32_INCLUDE_BOARD_H
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#define __CONFIGS_OLIMEXINO_STM32_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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#include "stm32_rcc.h"
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#include "stm32_sdio.h"
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#include "stm32.h"
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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 8MHz
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* LSE - 32.768 kHz
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*/
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#define STM32_BOARD_XTAL 8000000ul
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#define STM32_HSI_FREQUENCY 8000000ul
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#define STM32_LSI_FREQUENCY 40000
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#define STM32_HSE_FREQUENCY STM32_BOARD_XTAL
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#define STM32_LSE_FREQUENCY 32768
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/* PLL source is HSE/1, PLL multipler is 9: PLL frequency is 8MHz (XTAL) x 9 = 72MHz */
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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_CLKx9
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#define STM32_PLL_FREQUENCY (9*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 (72MHz) */
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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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#define STM32_BOARD_HCLK STM32_HCLK_FREQUENCY /* same as above, to satisfy compiler */
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/* APB2 clock (PCLK2) is HCLK (72MHz) */
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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 and 8 will receive PCLK2. */
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#define STM32_APB2_TIM1_CLKIN (STM32_PCLK2_FREQUENCY)
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#define STM32_APB2_TIM8_CLKIN (STM32_PCLK2_FREQUENCY)
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/* APB1 clock (PCLK1) is HCLK/2 (36MHz) */
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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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/* APB1 timers 2-4 will be twice PCLK1 (I presume the remaining will receive PCLK1) */
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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 (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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/* USB divider -- Divide PLL clock by 1.5 */
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#define STM32_CFGR_USBPRE 0
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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: TIM1,8 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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/* Buttons *************************************************************************/
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#define BUTTON_BOOT0_BIT (0)
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#define BUTTON_BOOT0_MASK (1<<BUTTON_BOOT0_BIT)
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/* Leds *************************************************************************/
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/* LED index values for use with board_setled() */
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#define BOARD_LED1 0
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#define BOARD_LED_GREEN BOARD_LED1
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#define BOARD_LED2 1
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#define BOARD_LED_YELLOW BOARD_LED2
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#define BOARD_NLEDS 2
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/* LED bits for use with board_setleds() */
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#define BOARD_LED_GREEN_BIT (1 << BOARD_LED_GREEN)
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#define BOARD_LED_YELLOW_BIT (1 << BOARD_LED_YELLOW)
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/* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
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* defined. In that case, the usage by the board port is as follows:
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*
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* SYMBOL Meaning LED state
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* Green Yellow
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* ------------------------ -------------------------- ------ ------ */
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#define LED_STARTED 0 /* NuttX has been started OFF OFF */
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#define LED_HEAPALLOCATE 1 /* Heap has been allocated OFF OFF */
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#define LED_IRQSENABLED 2 /* Interrupts enabled OFF OFF */
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#define LED_STACKCREATED 3 /* Idle stack created ON OFF */
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#define LED_INIRQ 4 /* In an interrupt N/C ON */
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#define LED_SIGNAL 5 /* In a signal handler N/C ON */
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#define LED_ASSERTION 6 /* An assertion failed N/C ON */
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#define LED_PANIC 7 /* The system has crashed N/C Blinking */
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#define LED_IDLE 8 /* MCU is is sleep mode OFF N/C */
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/* Thus if the Green is statically on, NuttX has successfully booted and is,
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* apparently, running normally. If the YellowLED is flashing at
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* approximately 2Hz, then a fatal error has been detected and the system
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* has halted.
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*
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* NOTE: That the Yellow is not used after completion of booting and may
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* be used by other board-specific logic.
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*/
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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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{
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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 initialization -- 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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void stm32_boardinitialize(void);
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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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/************************************************************************************
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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 interfaces are 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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void stm32_led_initialize(void);
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void stm32_setled(int led, bool ledon);
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void stm32_setleds(uint8_t ledset);
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __CONFIGS_OLIMEXINO_STM32_INCLUDE_BOARD_H */
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