/**************************************************************************** * boards/arm/stm32f0l0g0/nucleo-g070rb/include/board.h * * Copyright (C) 2019 Gregory Nutt. All rights reserved. * Author: Daniel Pereira Volpato * * Based on: boards/arm/stm32f0l0g0/nucleo-g071rb/include/board.h * 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 __BOARDS_ARM_STM32F0L0G0_NUCLEO_G070RB_INCLUDE_BOARD_H #define __BOARDS_ARM_STM32F0L0G0_NUCLEO_G070RB_INCLUDE_BOARD_H /**************************************************************************** * Included Files ****************************************************************************/ #include #ifndef __ASSEMBLY__ # include # include #endif /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Clocking *****************************************************************/ /* HSI - Internal 16 MHz RC Oscillator * LSI - 32 KHz RC * HSE - 8 MHz from MCO output of ST-LINK (disabled by default) * LSE - 32.768 kHz */ #define STM32_BOARD_XTAL 8000000ul /* 8MHz */ #define STM32_HSI_FREQUENCY 16000000ul /* 16MHz */ #define STM32_LSI_FREQUENCY 32000 /* Between 30kHz and 60kHz */ #define STM32_HSE_FREQUENCY STM32_BOARD_XTAL #define STM32_LSE_FREQUENCY 32768 /* X2 on board */ /* Main PLL Configuration. * * PLL_VCO = (PLL_SOURCE_FREQUENCY / PLL_M) * PLL_N * SYSCLK = PLLCLK = PLLR = PLL_VCO / PLL_DIV_R * PLLP = PLL_VCO / PLL_DIV_P * * Subject to: * * PLL_SOURCE_FREQUENCY is one of {STM32_HSE_FREQUENCY, STM32_HSI_FREQUENCY} * * 1 <= PLL_DIV_M <= 8 * 8 <= PLL_DIV_N <= 86 * 2 <= PLL_DIV_P <= 32 * 2 <= PLL_DIV_R <= 8 * 4 MHz <= PLL_SOURCE_FREQUENCY <= 48 MHz * 96 MHz <= PLL_VCO <= 344MHz */ /* Considering: * - PLL_SOURCE_FREQUENCY = STM32_HSI_FREQUENCY = 16,000,000 * - PLL_DIV_M = 1 * - PLL_DIV_N = 8 * - PLL_DIV_R = 2 * - PLL_DIV_P = 2 * * PLL_VCO = (16,000,000 / 1) * 8 = 128 MHz * PLLP = (PLL_VCO / 2) = 64 MHz * PLLR = (PLL_VCO / 2) = 64 MHz */ #define STM32_PLLCFG_PLLSRC RCC_PLLCFG_PLLSRC_HSI #define STM32_PLLCFG_PLLCFG (RCC_PLLCFG_PLLPEN | \ RCC_PLLCFG_PLLREN) #define STM32_PLLCFG_PLLM RCC_PLLCFG_PLLM(1) #define STM32_PLLCFG_PLLN RCC_PLLCFG_PLLN(8) #define STM32_PLLCFG_PLLP RCC_PLLCFG_PLLP(2) #define STM32_PLLCFG_PLLR RCC_PLLCFG_PLLR(2) #define STM32_VCO_FREQUENCY ((STM32_HSI_FREQUENCY / 1) * 8) #define STM32_PLLP_FREQUENCY (STM32_VCO_FREQUENCY / 2) #define STM32_PLLR_FREQUENCY (STM32_VCO_FREQUENCY / 2) /* Use the PLL and set the SYSCLK source to be the PLLR (64 MHz) */ #define STM32_SYSCLK_SW RCC_CFGR_SW_PLL #define STM32_SYSCLK_SWS RCC_CFGR_SWS_PLL #define STM32_SYSCLK_FREQUENCY (STM32_PLLR_FREQUENCY) /* AHB clock (HCLK) is SYSCLK (64 MHz) */ #define STM32_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK #define STM32_HCLK_FREQUENCY STM32_SYSCLK_FREQUENCY #define STM32_BOARD_HCLK STM32_HCLK_FREQUENCY /* APB1 clock (PCLK1) is HCLK (64 MHz) */ #define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLK #define STM32_PCLK1_FREQUENCY STM32_HCLK_FREQUENCY /* TODO: timers */ /* LED definitions **********************************************************/ /* Nucleo G070RB 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 5V_PWR: green LED indicates that the board is powered by a 5V source. * * And one can be controlled by software: * * User LD4: green LED is a user LED connected to STM32 I/O PA5. * * 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 LD4 */ #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 the * board. 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 *******************************************************/ /* Nucleo G070RB board supports two buttons; only one button is controllable * by software: * * B1 USER: user button connected to STM32 I/O PC13. * B2 RESET: push button connected to NRST; used to RESET the MCU. */ #define BUTTON_USER 0 /* User B1 */ #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 - PA2 */ #define GPIO_USART2_RX GPIO_USART2_RX_1 /* PA3 */ #define GPIO_USART2_TX GPIO_USART2_TX_1 /* PA2 */ /* DMA channels *************************************************************/ /* ADC */ /* TODO ADC */ #endif /* __BOARDS_ARM_STM32F0L0G0_NUCLEO_G070RB_INCLUDE_BOARD_H */