/**************************************************************************** * configs/nucleo-f302r8/include/board.h * include/arch/board/board.h * * Copyright (C) 2018 Gregory Nutt. All rights reserved. * Author: Mateusz Szafoni * * 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 __CONFIG_NUCLEOF302R8_INCLUDE_BOARD_H #define __CONFIG_NUCLEOF302R8_INCLUDE_BOARD_H /**************************************************************************** * Included Files ****************************************************************************/ #include #ifndef __ASSEMBLY__ # include # include #endif #ifdef __KERNEL__ # include "stm32.h" #endif /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Clocking *****************************************************************/ /* HSI - Internal 8 MHz RC Oscillator * LSI - 32 KHz RC * HSE - On-board crystal frequency is 8MHz * LSE - 32.768 kHz */ #define STM32_BOARD_XTAL 8000000ul /* X1 on board */ #define STM32_HSI_FREQUENCY 8000000ul #define STM32_LSI_FREQUENCY 40000 /* Between 30kHz and 60kHz */ #define STM32_HSE_FREQUENCY STM32_BOARD_XTAL #define STM32_LSE_FREQUENCY 32768 /* X2 on board */ /* PLL source is HSE/1, PLL multipler is 9: PLL frequency is 8MHz (XTAL) x 9 = 72MHz */ #define STM32_CFGR_PLLSRC RCC_CFGR_PLLSRC #define STM32_CFGR_PLLXTPRE 0 #define STM32_CFGR_PLLMUL RCC_CFGR_PLLMUL_CLKx9 #define STM32_PLL_FREQUENCY (9*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 (72MHz) */ #define STM32_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK #define STM32_HCLK_FREQUENCY STM32_PLL_FREQUENCY #define STM32_BOARD_HCLK STM32_HCLK_FREQUENCY /* same as above, to satisfy compiler */ /* APB2 clock (PCLK2) is HCLK (72MHz) */ #define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLK #define STM32_PCLK2_FREQUENCY STM32_HCLK_FREQUENCY #define STM32_APB2_CLKIN (STM32_PCLK2_FREQUENCY) /* Timers 1 and 8, 15-17 */ /* APB2 timers 1 and 8, 15-17 will receive PCLK2. */ /* Timers driven from APB2 will be PCLK2 */ #define STM32_APB2_TIM1_CLKIN (STM32_PCLK2_FREQUENCY) #define STM32_APB2_TIM8_CLKIN (STM32_PCLK2_FREQUENCY) #define STM32_APB1_TIM15_CLKIN (STM32_PCLK2_FREQUENCY) #define STM32_APB1_TIM16_CLKIN (STM32_PCLK2_FREQUENCY) #define STM32_APB1_TIM17_CLKIN (STM32_PCLK2_FREQUENCY) /* APB1 clock (PCLK1) is HCLK/2 (36MHz) */ #define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLKd2 #define STM32_PCLK1_FREQUENCY (STM32_HCLK_FREQUENCY/2) /* APB1 timers 2-7 will be twice PCLK1 */ #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_TIM6_CLKIN (2*STM32_PCLK1_FREQUENCY) #define STM32_APB1_TIM7_CLKIN (2*STM32_PCLK1_FREQUENCY) /* USB divider -- Divide PLL clock by 1.5 */ #define STM32_CFGR_USBPRE 0 /* Timer Frequencies, if APBx is set to 1, frequency is same to APBx * otherwise frequency is 2xAPBx. * Note: TIM1,8 are on APB2, others on APB1 */ #define BOARD_TIM1_FREQUENCY STM32_HCLK_FREQUENCY #define BOARD_TIM2_FREQUENCY (STM32_HCLK_FREQUENCY / 2) #define BOARD_TIM3_FREQUENCY (STM32_HCLK_FREQUENCY / 2) #define BOARD_TIM4_FREQUENCY (STM32_HCLK_FREQUENCY / 2) #define BOARD_TIM5_FREQUENCY (STM32_HCLK_FREQUENCY / 2) #define BOARD_TIM6_FREQUENCY (STM32_HCLK_FREQUENCY / 2) #define BOARD_TIM7_FREQUENCY (STM32_HCLK_FREQUENCY / 2) #define BOARD_TIM8_FREQUENCY STM32_HCLK_FREQUENCY /* LED definitions **********************************************************/ /* The Nucleo F302R8 board has three LEDs. Two of these are controlled by * logic on the board and are not available for software control: * * LD1 COM: LD1 default status is red. LD1 turns to green to indicate that * communications are in progress between the PC and the * ST-LINK/V2-1. * LD3 PWR: red LED indicates that the board is powered. * * And one can be controlled by software: * * User LD2: green LED is a user LED connected to the I/O PA5 of the * STM32F302R8T6. * * If CONFIG_ARCH_LEDS is not defined, then the user can control the LED in * any way. The following definition is used to access the LED. */ /* LED index values for use with board_userled() */ #define BOARD_LED1 0 /* User LD2 */ #define BOARD_NLEDS 1 /* LED bits for use with board_userled_all() */ #define BOARD_LED1_BIT (1 << BOARD_LED1) /* If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board * the Nucleo F302R8. The following definitions describe how NuttX controls * the LED: * * SYMBOL Meaning LED1 state * ------------------ ----------------------- ---------- * LED_STARTED NuttX has been started OFF * LED_HEAPALLOCATE Heap has been allocated OFF * LED_IRQSENABLED Interrupts enabled OFF * LED_STACKCREATED Idle stack created ON * LED_INIRQ In an interrupt No change * LED_SIGNAL In a signal handler No change * LED_ASSERTION An assertion failed No change * LED_PANIC The system has crashed Blinking * LED_IDLE STM32 is is sleep mode Not used */ #define LED_STARTED 0 #define LED_HEAPALLOCATE 0 #define LED_IRQSENABLED 0 #define LED_STACKCREATED 1 #define LED_INIRQ 2 #define LED_SIGNAL 2 #define LED_ASSERTION 2 #define LED_PANIC 1 /* Button definitions *******************************************************/ /* The Nucleo F302R8 supports two buttons; only one button is controllable * by software: * * B1 USER: user button connected to the I/O PC13 of the STM32F302R8T6. * B2 RESET: push button connected to NRST is used to RESET the * STM32F302R8T6. */ #define BUTTON_USER 0 #define NUM_BUTTONS 1 #define BUTTON_USER_BIT (1 << BUTTON_USER) /* Alternate function pin selections ****************************************/ /* USART */ /* By default the USART2 is connected to STLINK Virtual COM Port: * USART2_RX - PA3 * USART2_TX - PA4 */ #define GPIO_USART2_RX GPIO_USART2_RX_2 /* PA3 */ #define GPIO_USART2_TX GPIO_USART2_TX_2 /* PA2 */ /* DMA channels *************************************************************/ #endif /* __CONFIG_NUCLEO_F302R8_INCLUDE_BOARD_H */