314 lines
11 KiB
C
314 lines
11 KiB
C
/************************************************************************************
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* configs/stm32l476vg-disco/include/board.h
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*
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* Copyright (C) 2016 Gregory Nutt. All rights reserved.
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* Author: dev@ziggurat29.com
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __CONFIGS_STM32L476VG_DISCO_INCLUDE_BOARD_H
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#define __CONFIGS_STM32L476VG_DISCO_INCLUDE_BOARD_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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#ifndef __ASSEMBLY__
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# include <stdint.h>
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#endif
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#include <stm32l4.h>
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* Clocking *************************************************************************/
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#include <arch/board/stm32l476vg-disco-clocking.h>
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/* DMA Channel/Stream Selections ****************************************************/
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/* Stream selections are arbitrary for now but might become important in the future
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* is we set aside more DMA channels/streams.
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*/
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/* Values defined in arch/arm/src/stm32l4/chip/stm32l4x6xx_dma.h */
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/* XXX are these used on disco? */
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#if 0
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#define DMACHAN_SDMMC DMACHAN_SDMMC_1 /* 2 choices * /
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#define DMACHAN_SPI1_RX DMACHAN_SPI1_RX_1 /* 2 choices * /
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#define DMACHAN_SPI1_TX DMACHAN_SPI1_TX_1 /* 2 choices * /
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/* UART RX DMA configurations */
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#define DMACHAN_USART1_RX DMACHAN_USART1_RX_2
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#endif
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/* Alternate function pin selections ************************************************/
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/* USART1:
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* RXD: PB7
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* TXD: PA6
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*
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* these pins are shared with the I2C1, which is used for some onboard
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* devices, so I am disabling USART1, however I'm leaving the declarations
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* here for documentation for anyone who might want to use it instead of
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* those onboard devices.
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*/
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#if 0
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#define GPIO_USART1_RX GPIO_USART1_RX_2 / * PB7 * /
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#define GPIO_USART1_TX GPIO_USART1_TX_2 / * PB6 * /
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#endif
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/* USART2: Connected to STLink Debug via PD5, PD6
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* RXD: PD6
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* TXD: PD5
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*/
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#define GPIO_USART2_RX GPIO_USART2_RX_2 /* PD6 */
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#define GPIO_USART2_TX GPIO_USART2_TX_2 /* PD5 */
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/* I2C
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*
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* The optional _GPIO configurations allow the I2C driver to manually
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* reset the bus to clear stuck slaves. They match the pin configuration,
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* but are normally-high GPIOs.
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*
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* I2C1 connects to devices on the Discovery board, including the
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* CS43L22 (addr 0x94) stereo DAC and amplifier. It shares the
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* pins with USART1, so that port is disabled so we can access the
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* onboard device.
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*
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*/
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#define GPIO_I2C1_SCL (GPIO_I2C1_SCL_1|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET)
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#define GPIO_I2C1_SDA (GPIO_I2C1_SDA_1|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET)
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#define GPIO_I2C1_SCL_GPIO \
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(GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN6)
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#define GPIO_I2C1_SDA_GPIO \
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(GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN7)
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/* XXX Is I2C2 used on Disco? */
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#if 0
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#define GPIO_I2C2_SCL (GPIO_I2C2_SCL_1|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET)
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#define GPIO_I2C2_SDA (GPIO_I2C2_SDA_1|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET)
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#define GPIO_I2C2_SCL_GPIO \
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(GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN10)
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#define GPIO_I2C2_SDA_GPIO \
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(GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN11)
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#endif
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/* Quad SPI pin mapping */
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#define GPIO_QSPI_CS (GPIO_QSPI_NCS_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz)
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#define GPIO_QSPI_IO0 (GPIO_QSPI_BK1_IO0_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz)
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#define GPIO_QSPI_IO1 (GPIO_QSPI_BK1_IO1_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz)
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#define GPIO_QSPI_IO2 (GPIO_QSPI_BK1_IO2_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz)
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#define GPIO_QSPI_IO3 (GPIO_QSPI_BK1_IO3_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz)
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#define GPIO_QSPI_SCK (GPIO_QSPI_CLK_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz)
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/* SPI */
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/* XXX is SPI1 used on Disco? */
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#if 0
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#define GPIO_SPI1_MISO GPIO_SPI1_MISO_1
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#define GPIO_SPI1_MOSI GPIO_SPI1_MOSI_1
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#define GPIO_SPI1_SCK GPIO_SPI1_SCK_1
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#endif
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/* SPI2 is used for several peripherals on the Discovery board, including
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* L3GD20 - 3 axis Gyroscope
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* LSM303CTR - eCompass, comprising an accelerometer and magnetometer
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*/
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#define GPIO_SPI2_MISO GPIO_SPI2_MISO_3
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#define GPIO_SPI2_MOSI GPIO_SPI2_MOSI_3
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#define GPIO_SPI2_SCK GPIO_SPI2_SCK_3
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/* PD7; gyroscope CS */
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#define GPIO_SPI_CS_GYRO_OFF \
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(GPIO_INPUT | GPIO_PULLDOWN | GPIO_SPEED_2MHz | \
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GPIO_PORTD | GPIO_PIN7)
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#define GPIO_SPI_CS_GYRO \
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(GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_2MHz | \
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GPIO_OUTPUT_SET | GPIO_PORTD | GPIO_PIN7)
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/* PE0; accelerometer CS */
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#define GPIO_SPI_CS_ACCEL_OFF \
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(GPIO_INPUT | GPIO_PULLDOWN | GPIO_SPEED_2MHz | \
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GPIO_PORTE | GPIO_PIN0)
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#define GPIO_SPI_CS_ACCEL \
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(GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_2MHz | \
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GPIO_OUTPUT_SET | GPIO_PORTE | GPIO_PIN0)
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/* PC0; magnetometer CS */
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#define GPIO_SPI_CS_MAGNETO_OFF \
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(GPIO_INPUT | GPIO_PULLDOWN | GPIO_SPEED_2MHz | \
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GPIO_PORTC | GPIO_PIN0)
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#define GPIO_SPI_CS_MAGNETO \
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(GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_2MHz | \
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GPIO_OUTPUT_SET | GPIO_PORTC | GPIO_PIN0)
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/* XXX these will need to be set up when these get implemented:
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* PD2 gyro INT1
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* PB8 gyro INT2/DRDY
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*
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* PE1 accel INT
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* PC2 magneto DRDY
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* PC1 magneto INT
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*/
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/* LEDs
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*
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* The STM32L476VG-DISCO board provides two user LEDs, LD4 (red) and LD5 (green).
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*
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* PB2 is LD4 (red)
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* PE8 is LD5 (green)
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* - When the I/O is HIGH value, the LED is on.
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* - When the I/O is LOW, the LED is off.
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*/
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/* LED index values for use with board_userled() */
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#define BOARD_LED_RED 0
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#define BOARD_LED_GRN 1
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#define BOARD_NLEDS 2
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/* LED bits for use with board_userled_all() */
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#define BOARD_LED_RED_BIT (1 << BOARD_LED_RED)
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#define BOARD_LED_GRN_BIT (1 << BOARD_LED_GRN)
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/* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
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* defined. In that case, the usage by the board port is defined in
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* include/board.h and src/stm32_autoleds.c. The LEDs are used to encode
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* OS-related events as follows when the red and green LEDs are available:
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*
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* SYMBOL Meaning BOARD_LED_GRN BOARD_LED_RED
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* ------------------- ----------------------- ----------- ------------
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* LED_STARTED NuttX has been started
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* LED_HEAPALLOCATE Heap has been allocated
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* LED_IRQSENABLED Interrupts enabled
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* LED_STACKCREATED Idle stack created
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* LED_INIRQ In an interrupt
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* LED_SIGNAL In a signal handler
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* LED_ASSERTION An assertion failed
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* LED_PANIC The system has crashed Blinking
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* LED_IDLE MCU is is sleep mode ON
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*
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* Thus if BOARD_LED_GRN, NuttX has successfully booted and is, apparently, running
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* normally. If BOARD_LED_RED is flashing at approximately 2Hz, then a fatal error
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* has been detected and the system has halted.
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*/
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#define LED_STARTED 0
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#define LED_HEAPALLOCATE 1
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#define LED_IRQSENABLED 2
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#define LED_STACKCREATED 3
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#define LED_INIRQ 4
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#define LED_SIGNAL 5
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#define LED_ASSERTION 6
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#define LED_PANIC 7
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#define LED_IDLE 8
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/* Buttons
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*
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* There is a 4 way d-pad 'joystick' with center button
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* connected to PA0,1,5,2,3
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* C L D R U
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*/
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#define BUTTON_CENTER 0
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#define BUTTON_LEFT 1
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#define BUTTON_DOWN 2
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#define BUTTON_RIGHT 3
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#define BUTTON_UP 4
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#define NUM_BUTTONS 5
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#define BUTTON_CENTER_BIT (1 << BUTTON_CENTER)
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#define BUTTON_LEFT_BIT (1 << BUTTON_LEFT)
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#define BUTTON_DOWN_BIT (1 << BUTTON_DOWN)
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#define BUTTON_RIGHT_BIT (1 << BUTTON_RIGHT)
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#define BUTTON_UP_BIT (1 << BUTTON_UP)
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/************************************************************************************
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* Public Data
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************************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/************************************************************************************
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* Public Function Prototypes
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************************************************************************************/
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/************************************************************************************
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* Name: stm32l4_boardinitialize
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*
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* Description:
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* All STM32L4 architectures must provide the following entry point. This entry point
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* is called early in the initialization -- after all memory has been configured
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* and mapped but before any devices have been initialized.
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*
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************************************************************************************/
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void stm32l4_boardinitialize(void);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __CONFIGS_STM32L476VG_DISCO_INCLUDE_BOARD_H */
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