/**************************************************************************** * boards/arm/stm32/clicker2-stm32/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_CLICKER2_STM32_INCLUDE_BOARD_H #define __BOARDS_ARM_STM32_CLICKER2_STM32_INCLUDE_BOARD_H /**************************************************************************** * Included Files ****************************************************************************/ #include #ifndef __ASSEMBLY__ # include # include #endif /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Clocking *****************************************************************/ /* The Clicker 2 for STM32 board features a 25Hz crystal and 32.768kHz RTC * crystal. * * This is the canonical configuration: * System Clock source : PLL (HSE) * SYSCLK(Hz) : 168000000 Determined by PLL configuration * HCLK(Hz) : 168000000 (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) * HSE Frequency(Hz) : 25000000 (STM32_BOARD_XTAL) * PLLM : 25 (STM32_PLLCFG_PLLM) * PLLN : 336 (STM32_PLLCFG_PLLN) * PLLP : 2 (STM32_PLLCFG_PLLP) * PLLQ : 7 (STM32_PLLCFG_PLLQ) * Main regulator * output voltage : Scale1 mode Needed for high speed SYSCLK * Flash Latency(WS) : 5 * 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 - On-board crystal frequency is 25MHz * LSE - 32.768 kHz */ #define STM32_BOARD_XTAL 25000000ul #define STM32_HSI_FREQUENCY 16000000ul #define STM32_LSI_FREQUENCY 32000 #define STM32_HSE_FREQUENCY STM32_BOARD_XTAL #define STM32_LSE_FREQUENCY 32768 /* Main PLL Configuration. * * PLL source is HSE * PLL_VCO = (STM32_HSE_FREQUENCY / PLLM) * PLLN * = (25,000,000 / 25) * 336 * = 336,000,000 * SYSCLK = PLL_VCO / PLLP * = 336,000,000 / 2 = 168,000,000 * USB OTG FS, SDIO and RNG Clock * = PLL_VCO / PLLQ * = 48,000,000 */ #define STM32_PLLCFG_PLLM RCC_PLLCFG_PLLM(25) #define STM32_PLLCFG_PLLN RCC_PLLCFG_PLLN(336) #define STM32_PLLCFG_PLLP RCC_PLLCFG_PLLP_2 #define STM32_PLLCFG_PLLQ RCC_PLLCFG_PLLQ(7) #define STM32_SYSCLK_FREQUENCY 168000000ul /* AHB clock (HCLK) is SYSCLK (168MHz) */ #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 (42MHz) */ #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 */ #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/2 (84MHz) */ #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_PCLK2_FREQUENCY) #define STM32_APB2_TIM10_CLKIN (2*STM32_PCLK2_FREQUENCY) #define STM32_APB2_TIM11_CLKIN (2*STM32_PCLK2_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 */ #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 /* 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!!! * * SDIOCLK=48MHz, SDIO_CK=SDIOCLK/(118+2)=400 KHz */ #define SDIO_INIT_CLKDIV (118 << SDIO_CLKCR_CLKDIV_SHIFT) /* DMA ON: SDIOCLK=48MHz, SDIO_CK=SDIOCLK/(1+2)=16 MHz * DMA OFF: SDIOCLK=48MHz, SDIO_CK=SDIOCLK/(2+2)=12 MHz */ #ifdef CONFIG_SDIO_DMA # define SDIO_MMCXFR_CLKDIV (1 << SDIO_CLKCR_CLKDIV_SHIFT) #else # define SDIO_MMCXFR_CLKDIV (2 << SDIO_CLKCR_CLKDIV_SHIFT) #endif /* DMA ON: SDIOCLK=48MHz, SDIO_CK=SDIOCLK/(1+2)=16 MHz * DMA OFF: SDIOCLK=48MHz, SDIO_CK=SDIOCLK/(2+2)=12 MHz */ #ifdef CONFIG_SDIO_DMA # define SDIO_SDXFR_CLKDIV (1 << SDIO_CLKCR_CLKDIV_SHIFT) #else # define SDIO_SDXFR_CLKDIV (2 << SDIO_CLKCR_CLKDIV_SHIFT) #endif /* LED definitions **********************************************************/ /* The Mikroe Clicker2 STM32 has two user controllable LEDs: * * LD1 - PE12, Active high output illuminates * LD2 - PE15, Active high output illuminates * * If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in * any way. The following definitions are used to access individual LEDs. */ /* LED index values for use with board_userled() */ #define BOARD_LED1 0 #define BOARD_LED2 1 #define BOARD_NLEDS 2 /* LED bits for use with board_userled_all() */ #define BOARD_LED1_BIT (1 << BOARD_LED1) #define BOARD_LED2_BIT (1 << BOARD_LED2) /* If CONFIG_ARCH_LEDs is defined, then NuttX will control the 2 LEDs on * board the Clicker2 for STM32. * The following definitions describe how NuttX controls the LEDs: * * SYMBOL Meaning LED state * LED1 LED2 * ------------------- ----------------------- -------- -------- * LED_STARTED NuttX has been started OFF OFF * LED_HEAPALLOCATE Heap has been allocated OFF OFF * LED_IRQSENABLED Interrupts enabled OFF OFF * LED_STACKCREATED Idle stack created ON OFF * LED_INIRQ In an interrupt N/C ON * LED_SIGNAL In a signal handler No change * LED_ASSERTION An assertion failed No change * LED_PANIC The system has crashed OFF 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 3 #define LED_ASSERTION 3 #define LED_PANIC 4 /* Button definitions *******************************************************/ /* The Mikroe Clicker2 STM32 has two buttons available to software: * * T2 - PE0, Low sensed when pressed * T3 - PA10, Low sensed when pressed */ #define BUTTON_T2 0 #define BUTTON_T3 1 #define NUM_BUTTONS 2 #define BUTTON_T2_BIT (1 << BUTTON_T2) #define BUTTON_T3_BIT (1 << BUTTON_T3) /* Alternate function pin selections ****************************************/ /* U[S]ARTs * * USART2 - mikroBUS1 * USART3 - mikroBUS2 * * Assuming RS-232 connverted connected on mikroMB1/12 */ #define GPIO_USART2_RX GPIO_USART2_RX_2 /* PD6 */ #define GPIO_USART2_TX GPIO_USART2_TX_2 /* PD5 */ #define GPIO_USART3_RX GPIO_USART3_RX_3 /* PD9 */ #define GPIO_USART3_TX GPIO_USART3_TX_3 /* PD8 */ /* SPI * * SPI2 - mikroBUS2 * SPI3 - mikroBUS1 */ #define GPIO_SPI2_MISO GPIO_SPI2_MISO_1 /* PC12 */ #define GPIO_SPI2_MOSI GPIO_SPI2_MOSI_1 /* PC11 */ #define GPIO_SPI2_SCK GPIO_SPI2_SCK_2 /* PC10 */ #define GPIO_SPI3_MISO GPIO_SPI3_MISO_2 /* PB15 */ #define GPIO_SPI3_MOSI GPIO_SPI3_MOSI_2 /* PB14 */ #define GPIO_SPI3_SCK GPIO_SPI3_SCK_2 /* PB13 */ /* I2C * * I2C2 - mikroBUS2 * I2C3 - mikroBUS1 */ #define GPIO_I2C2_SCL GPIO_I2C2_SCL_1 /* PB10 */ #define GPIO_I2C2_SDA GPIO_I2C2_SDA_1 /* PB11 */ #define GPIO_I2C3_SCL GPIO_I2C3_SCL_1 /* PA8 */ #define GPIO_I2C3_SDA GPIO_I2C3_SDA_1 /* PC9 */ /* Analog * * mikroBUS1 ADC: PA2-MB1_AN * mikroBUS1 ADC: PA3-MB2_AN */ /* PWM * * mikroBUS1 ADC: PE9-MB1-PWM (TIM1, channel 1) * mikroBUS1 ADC: PD12-MB2-PWM (TIM4, channel 1) */ #define GPIO_TIM1_CH1OUT GPIO_TIM1_CH1OUT_2 /* PE9 */ #define GPIO_TIM4_CH1OUT GPIO_TIM4_CH1OUT_2 /* PD12 */ /* DMA Channel/Stream Selections ********************************************/ /* Stream selections are arbitrary for now but might become important in the * future if we set aside more DMA channels/streams. * * SDIO DMA * DMAMAP_SDIO_1 = Channel 4, Stream 3 * DMAMAP_SDIO_2 = Channel 4, Stream 6 */ #define DMAMAP_SDIO DMAMAP_SDIO_1 #endif /* __BOARDS_ARM_STM32_CLICKER2_STM32_INCLUDE_BOARD_H */