/**************************************************************************** * boards/arm/stm32/stm32f411-minimum/include/board.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ #ifndef __BOARDS_ARM_STM32_STM32F411_MINIMUM_INCLUDE_BOARD_H #define __BOARDS_ARM_STM32_STM32F411_MINIMUM_INCLUDE_BOARD_H /**************************************************************************** * Included Files ****************************************************************************/ #include #ifndef __ASSEMBLY__ # include #endif #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Clocking *****************************************************************/ /* System Clock source : PLLCLK (HSE) * SYSCLK(Hz) : 96000000 Determined by PLL config * HCLK(Hz) : 96000000 (STM32_RCC_CFGR_HPRE) * AHB Prescaler : 1 (STM32_RCC_CFGR_HPRE) * APB1 Prescaler : 4 (STM32_RCC_CFGR_PPRE1) * APB2 Prescaler : 2 (STM32_RCC_CFGR_PPRE2) * HSI Frequency(Hz) : 16000000 (nominal) * PLLM : 4 (STM32_PLLCFG_PLLM) * PLLN : 192 (STM32_PLLCFG_PLLN) * PLLP : 4 (STM32_PLLCFG_PLLP) * PLLQ : 8 (STM32_PLLCFG_PPQ) * Flash Latency(WS) : 3 * Prefetch Buffer : OFF * Instruction cache : ON * Data cache : ON * Require 48MHz for USB OTG FS, : Enabled * SDIO and RNG clock */ /* HSI - 16 MHz RC factory-trimmed * LSI - 32 KHz RC * HSE - 25 MHz Crystal * LSE - 32 KHz Crystal */ #define STM32_BOARD_XTAL 25000000ul #define STM32_HSI_FREQUENCY 16000000ul #define STM32_LSI_FREQUENCY 32000 #define STM32_LSE_FREQUENCY 32768 #define STM32_HSE_FREQUENCY STM32_BOARD_XTAL /* Main PLL Configuration. * * Formulae: * * VCO input freq = PLL input clock freq/PLLM 2 <= PLLM <= 63 * VCO output freq = VCO input freq × PLLN, 192 <= PLLN <= 432 * PLL output clock freq = VCO freq / PLLP, PLLP = 2,4,6 or 8 * USB OTG FS clock freq = VCO freq / PLLQ, 2 <= PLLQ <= 15 * * There is no config for 100 MHz and 48 MHz for usb, * so we would like to have SYSYCLK=96MHz and we must have the USB * clock = 48MHz * * PLLQ = 2 PLLP = 2 PLLN=192 PLLM=25 * * We will configure like this * * PLL source is HSE * PLL_VCO = (STM32_HSE_FREQUENCY / PLLM) * PLLN * = (25,000,000 / 25) * 192 * = 192,000,000 * SYSCLK = PLL_VCO / PLLP * = 192,000,000 / 2 = 96,000,000 * USB OTG FS and SDIO Clock * = PLL_VCO / PLLQ * = 96,000,000 / 2 = 48,000,000 */ #define STM32_PLLCFG_PLLM RCC_PLLCFG_PLLM(25) #define STM32_PLLCFG_PLLN RCC_PLLCFG_PLLN(192) #define STM32_PLLCFG_PLLP RCC_PLLCFG_PLLP_2 #define STM32_PLLCFG_PLLQ RCC_PLLCFG_PLLQ(2) #define STM32_SYSCLK_FREQUENCY 96000000ul /* AHB clock (HCLK) is SYSCLK (96MHz) */ #define STM32_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK /* HCLK = SYSCLK / 1 */ #define STM32_HCLK_FREQUENCY STM32_SYSCLK_FREQUENCY /* APB1 clock (PCLK1) is HCLK/4 (24MHz) */ #define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLKd4 /* PCLK1 = HCLK / 4 */ #define STM32_PCLK1_FREQUENCY (STM32_HCLK_FREQUENCY/4) /* Timers driven from APB1 will be twice PCLK1 */ /* REVISIT */ #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_TIM5_CLKIN (2*STM32_PCLK1_FREQUENCY) #define STM32_APB1_TIM6_CLKIN (2*STM32_PCLK1_FREQUENCY) #define STM32_APB1_TIM7_CLKIN (2*STM32_PCLK1_FREQUENCY) #define STM32_APB1_TIM12_CLKIN (2*STM32_PCLK1_FREQUENCY) #define STM32_APB1_TIM13_CLKIN (2*STM32_PCLK1_FREQUENCY) #define STM32_APB1_TIM14_CLKIN (2*STM32_PCLK1_FREQUENCY) /* APB2 clock (PCLK2) is HCLK (48MHz) */ #define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLKd2 /* PCLK2 = HCLK / 2 */ #define STM32_PCLK2_FREQUENCY (STM32_HCLK_FREQUENCY/2) /* Timers driven from APB2 will be twice PCLK2 */ #define STM32_APB2_TIM1_CLKIN (2*STM32_PCLK2_FREQUENCY) #define STM32_APB2_TIM8_CLKIN (2*STM32_PCLK2_FREQUENCY) #define STM32_APB2_TIM9_CLKIN (2*STM32_PCLK1_FREQUENCY) #define STM32_APB2_TIM10_CLKIN (2*STM32_PCLK1_FREQUENCY) #define STM32_APB2_TIM11_CLKIN (2*STM32_PCLK1_FREQUENCY) /* 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 */ /* REVISIT */ #define BOARD_TIM1_FREQUENCY (2 * STM32_PCLK2_FREQUENCY) #define BOARD_TIM2_FREQUENCY (2 * STM32_PCLK1_FREQUENCY) #define BOARD_TIM3_FREQUENCY (2 * STM32_PCLK1_FREQUENCY) #define BOARD_TIM4_FREQUENCY (2 * STM32_PCLK1_FREQUENCY) #define BOARD_TIM5_FREQUENCY (2 * STM32_PCLK1_FREQUENCY) #define BOARD_TIM6_FREQUENCY (2 * STM32_PCLK1_FREQUENCY) #define BOARD_TIM7_FREQUENCY (2 * STM32_PCLK1_FREQUENCY) #define BOARD_TIM8_FREQUENCY (2 * STM32_PCLK2_FREQUENCY) /* SDIO dividers. Note that slower clocking is required when DMA is disabled * in order to avoid RX overrun/TX underrun errors due to delayed responses * to service FIFOs in interrupt driven mode. These values have not been * tuned!!! * * HCLK=72MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(178+2)=400 KHz */ /* REVISIT */ #define SDIO_INIT_CLKDIV (178 << SDIO_CLKCR_CLKDIV_SHIFT) /* DMA ON: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(2+2)=18 MHz * DMA OFF: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(3+2)=14.4 MHz */ /* REVISIT */ #ifdef CONFIG_SDIO_DMA # define SDIO_MMCXFR_CLKDIV (2 << SDIO_CLKCR_CLKDIV_SHIFT) #else # define SDIO_MMCXFR_CLKDIV (3 << SDIO_CLKCR_CLKDIV_SHIFT) #endif /* DMA ON: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(1+2)=24 MHz * DMA OFF: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(3+2)=14.4 MHz */ /* REVISIT */ #ifdef CONFIG_SDIO_DMA # define SDIO_SDXFR_CLKDIV (1 << SDIO_CLKCR_CLKDIV_SHIFT) #else # define SDIO_SDXFR_CLKDIV (3 << SDIO_CLKCR_CLKDIV_SHIFT) #endif /* DMA Channel/Stream Selections ********************************************/ /* Stream selections are arbitrary for now but might become important in the * future is we set aside more DMA channels/streams. * * SDIO DMA *   DMAMAP_SDIO_1 = Channel 4, Stream 3 <- may later be used by SPI DMA *   DMAMAP_SDIO_2 = Channel 4, Stream 6 */ #define DMAMAP_SDIO DMAMAP_SDIO_1 /* Need to VERIFY fwb */ #define DMACHAN_SPI1_RX DMAMAP_SPI1_RX_1 #define DMACHAN_SPI1_TX DMAMAP_SPI1_TX_1 #define DMACHAN_SPI2_RX DMAMAP_SPI2_RX #define DMACHAN_SPI2_TX DMAMAP_SPI2_TX /* Alternate function pin selections ****************************************/ /* USART1: * RXD: PA10 CN9 pin 3, CN10 pin 33 * PB7 CN7 pin 21 * TXD: PA9 CN5 pin 1, CN10 pin 21 * PB6 CN5 pin 3, CN10 pin 17 */ #if 1 # define GPIO_USART1_RX GPIO_USART1_RX_1 /* PA10 */ # define GPIO_USART1_TX GPIO_USART1_TX_1 /* PA9 */ #else # define GPIO_USART1_RX GPIO_USART1_RX_2 /* PB7 */ # define GPIO_USART1_TX GPIO_USART1_TX_2 /* PB6 */ #endif /* USART2: * RXD: PA3 CN9 pin 1 (See SB13, 14, 62, 63). CN10 pin 37 * PD6 * TXD: PA2 CN9 pin 2(See SB13, 14, 62, 63). CN10 pin 35 * PD5 */ #define GPIO_USART2_RX GPIO_USART2_RX_1 /* PA3 */ #define GPIO_USART2_TX GPIO_USART2_TX_1 /* PA2 */ #define GPIO_USART2_RTS GPIO_USART2_RTS_2 #define GPIO_USART2_CTS GPIO_USART2_CTS_2 /* USART6: * RXD: PC7 CN5 pin2, CN10 pin 19 * PA12 CN10, pin 12 * TXD: PC6 CN10, pin 4 * PA11 CN10, pin 14 */ #define GPIO_USART6_RX GPIO_USART6_RX_1 /* PC7 */ #define GPIO_USART6_TX GPIO_USART6_TX_1 /* PC6 */ /* UART RX DMA configurations */ #define DMAMAP_USART1_RX DMAMAP_USART1_RX_2 #define DMAMAP_USART6_RX DMAMAP_USART6_RX_2 /* I2C * * The optional _GPIO configurations allow the I2C driver to manually * reset the bus to clear stuck slaves. They match the pin configuration, * but are normally-high GPIOs. */ #define GPIO_I2C1_SCL GPIO_I2C1_SCL_2 #define GPIO_I2C1_SDA GPIO_I2C1_SDA_2 #define GPIO_I2C1_SCL_GPIO \ (GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN8) #define GPIO_I2C1_SDA_GPIO \ (GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN9) #define GPIO_I2C2_SCL GPIO_I2C2_SCL_1 #define GPIO_I2C2_SDA GPIO_I2C2_SDA_1 #define GPIO_I2C2_SCL_GPIO \ (GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN10) #define GPIO_I2C2_SDA_GPIO \ (GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN11) /* SPI * * There are sensors on SPI1, and SPI2 is connected to the FRAM. */ #define GPIO_SPI1_MISO GPIO_SPI1_MISO_1 #define GPIO_SPI1_MOSI GPIO_SPI1_MOSI_1 #define GPIO_SPI1_SCK GPIO_SPI1_SCK_1 #define GPIO_SPI2_MISO GPIO_SPI2_MISO_1 #define GPIO_SPI2_MOSI GPIO_SPI2_MOSI_1 #define GPIO_SPI2_SCK GPIO_SPI2_SCK_2 /* LEDs * * The STM32F411-Minimum (aka BlackPill) has a LED on PC13 pin. */ /* The board has only one controllable LED */ #define LED_STARTED 0 /* No LEDs */ #define LED_HEAPALLOCATE 1 /* LED1 on */ #define LED_IRQSENABLED 2 /* LED1 on */ #define LED_STACKCREATED 3 /* LED1 on */ #define LED_INIRQ 4 /* LED1 on */ #define LED_SIGNAL 5 /* LED1 on */ #define LED_ASSERTION 6 /* LED1 on */ #define LED_PANIC 7 /* LED1 blinking */ /* LED index values for use with board_userled() */ #define BOARD_LED1 0 #define BOARD_NLEDS 1 /* LED bits for use with board_userled_all() */ #define BOARD_LED1_BIT (1 << BOARD_LED1) /* Buttons * * B1 USER: the user button is connected to the I/O PA0 of the STM32 * microcontroller. */ #define BUTTON_USER 0 #define NUM_BUTTONS 1 #define BUTTON_USER_BIT (1 << BUTTON_USER) #endif /* __BOARDS_ARM_STM32_STM32F411_MINIMUM_INCLUDE_BOARD_H */