nuttx/boards/arm/stm32/clicker2-stm32/include/board.h
2023-09-21 00:35:12 +08:00

313 lines
11 KiB
C

/****************************************************************************
* 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 <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
# include <stdbool.h>
#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 */