/************************************************************************************ * configs/stm32l476vg-disco/include/board.h * * Copyright (C) 2016 Gregory Nutt. All rights reserved. * Author: dev@ziggurat29.com * * 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 __CONFIGS_STM32L476VG_DISCO_INCLUDE_BOARD_H #define __CONFIGS_STM32L476VG_DISCO_INCLUDE_BOARD_H /************************************************************************************ * Included Files ************************************************************************************/ #include #ifndef __ASSEMBLY__ # include #endif #include /************************************************************************************ * Pre-processor Definitions ************************************************************************************/ /* Clocking *************************************************************************/ #include /* 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. */ /* Values defined in arch/arm/src/stm32l4/chip/stm32l4x6xx_dma.h */ /* XXX are these used on disco? */ #if 0 #define DMACHAN_SDMMC DMACHAN_SDMMC_1 /* 2 choices * / #define DMACHAN_SPI1_RX DMACHAN_SPI1_RX_1 /* 2 choices * / #define DMACHAN_SPI1_TX DMACHAN_SPI1_TX_1 /* 2 choices * / /* UART RX DMA configurations */ #define DMACHAN_USART1_RX DMACHAN_USART1_RX_2 #endif /* Alternate function pin selections ************************************************/ /* USART1: * RXD: PB7 * TXD: PA6 * * these pins are shared with the I2C1, which is used for some onboard * devices, so I am disabling USART1, however I'm leaving the declarations * here for documentation for anyone who might want to use it instead of * those onboard devices. */ #if 0 #define GPIO_USART1_RX GPIO_USART1_RX_2 / * PB7 * / #define GPIO_USART1_TX GPIO_USART1_TX_2 / * PB6 * / #endif /* USART2: Connected to STLink Debug via PD5, PD6 * RXD: PD6 * TXD: PD5 */ #define GPIO_USART2_RX GPIO_USART2_RX_2 /* PD6 */ #define GPIO_USART2_TX GPIO_USART2_TX_2 /* PD5 */ /* 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. * * I2C1 connects to devices on the Discovery board, including the * CS43L22 (addr 0x94) stereo DAC and amplifier. It shares the * pins with USART1, so that port is disabled so we can access the * onboard device. * */ #define GPIO_I2C1_SCL (GPIO_I2C1_SCL_1|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET) #define GPIO_I2C1_SDA (GPIO_I2C1_SDA_1|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET) #define GPIO_I2C1_SCL_GPIO \ (GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN6) #define GPIO_I2C1_SDA_GPIO \ (GPIO_OUTPUT|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN7) /* XXX Is I2C2 used on Disco? */ #if 0 #define GPIO_I2C2_SCL (GPIO_I2C2_SCL_1|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET) #define GPIO_I2C2_SDA (GPIO_I2C2_SDA_1|GPIO_OPENDRAIN|GPIO_SPEED_50MHz|GPIO_OUTPUT_SET) #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) #endif /* Quad SPI pin mapping */ #define GPIO_QSPI_CS (GPIO_QSPI_NCS_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz) #define GPIO_QSPI_IO0 (GPIO_QSPI_BK1_IO0_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz) #define GPIO_QSPI_IO1 (GPIO_QSPI_BK1_IO1_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz) #define GPIO_QSPI_IO2 (GPIO_QSPI_BK1_IO2_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz) #define GPIO_QSPI_IO3 (GPIO_QSPI_BK1_IO3_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz) #define GPIO_QSPI_SCK (GPIO_QSPI_CLK_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz) /* SPI */ /* XXX is SPI1 used on Disco? */ #if 0 #define GPIO_SPI1_MISO GPIO_SPI1_MISO_1 #define GPIO_SPI1_MOSI GPIO_SPI1_MOSI_1 #define GPIO_SPI1_SCK GPIO_SPI1_SCK_1 #endif /* SPI2 is used for several peripherals on the Discovery board, including * L3GD20 - 3 axis Gyroscope * LSM303CTR - eCompass, comprising an accelerometer and magnetometer */ #define GPIO_SPI2_MISO GPIO_SPI2_MISO_3 #define GPIO_SPI2_MOSI GPIO_SPI2_MOSI_3 #define GPIO_SPI2_SCK GPIO_SPI2_SCK_3 /* PD7; gyroscope CS */ #define GPIO_SPI_CS_GYRO_OFF \ (GPIO_INPUT | GPIO_PULLDOWN | GPIO_SPEED_2MHz | \ GPIO_PORTD | GPIO_PIN7) #define GPIO_SPI_CS_GYRO \ (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_2MHz | \ GPIO_OUTPUT_SET | GPIO_PORTD | GPIO_PIN7) /* PE0; accelerometer CS */ #define GPIO_SPI_CS_ACCEL_OFF \ (GPIO_INPUT | GPIO_PULLDOWN | GPIO_SPEED_2MHz | \ GPIO_PORTE | GPIO_PIN0) #define GPIO_SPI_CS_ACCEL \ (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_2MHz | \ GPIO_OUTPUT_SET | GPIO_PORTE | GPIO_PIN0) /* PC0; magnetometer CS */ #define GPIO_SPI_CS_MAGNETO_OFF \ (GPIO_INPUT | GPIO_PULLDOWN | GPIO_SPEED_2MHz | \ GPIO_PORTC | GPIO_PIN0) #define GPIO_SPI_CS_MAGNETO \ (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_2MHz | \ GPIO_OUTPUT_SET | GPIO_PORTC | GPIO_PIN0) /* XXX these will need to be set up when these get implemented: * PD2 gyro INT1 * PB8 gyro INT2/DRDY * * PE1 accel INT * PC2 magneto DRDY * PC1 magneto INT */ /* LEDs * * The STM32L476VG-DISCO board provides two user LEDs, LD4 (red) and LD5 (green). * * PB2 is LD4 (red) * PE8 is LD5 (green) * - When the I/O is HIGH value, the LED is on. * - When the I/O is LOW, the LED is off. */ /* LED index values for use with board_userled() */ #define BOARD_LED_RED 0 #define BOARD_LED_GRN 1 #define BOARD_NLEDS 2 /* LED bits for use with board_userled_all() */ #define BOARD_LED_RED_BIT (1 << BOARD_LED_RED) #define BOARD_LED_GRN_BIT (1 << BOARD_LED_GRN) /* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is * defined. In that case, the usage by the board port is defined in * include/board.h and src/stm32_autoleds.c. The LEDs are used to encode * OS-related events as follows when the red and green LEDs are available: * * SYMBOL Meaning BOARD_LED_GRN BOARD_LED_RED * ------------------- ----------------------- ----------- ------------ * LED_STARTED NuttX has been started * LED_HEAPALLOCATE Heap has been allocated * LED_IRQSENABLED Interrupts enabled * LED_STACKCREATED Idle stack created * LED_INIRQ In an interrupt * LED_SIGNAL In a signal handler * LED_ASSERTION An assertion failed * LED_PANIC The system has crashed Blinking * LED_IDLE MCU is is sleep mode ON * * Thus if BOARD_LED_GRN, NuttX has successfully booted and is, apparently, running * normally. If BOARD_LED_RED is flashing at approximately 2Hz, then a fatal error * has been detected and the system has halted. */ #define LED_STARTED 0 #define LED_HEAPALLOCATE 1 #define LED_IRQSENABLED 2 #define LED_STACKCREATED 3 #define LED_INIRQ 4 #define LED_SIGNAL 5 #define LED_ASSERTION 6 #define LED_PANIC 7 #define LED_IDLE 8 /* Buttons * * There is a 4 way d-pad 'joystick' with center button * connected to PA0,1,5,2,3 * C L D R U */ #define BUTTON_CENTER 0 #define BUTTON_LEFT 1 #define BUTTON_DOWN 2 #define BUTTON_RIGHT 3 #define BUTTON_UP 4 #define NUM_BUTTONS 5 #define BUTTON_CENTER_BIT (1 << BUTTON_CENTER) #define BUTTON_LEFT_BIT (1 << BUTTON_LEFT) #define BUTTON_DOWN_BIT (1 << BUTTON_DOWN) #define BUTTON_RIGHT_BIT (1 << BUTTON_RIGHT) #define BUTTON_UP_BIT (1 << BUTTON_UP) /************************************************************************************ * Public Data ************************************************************************************/ #ifndef __ASSEMBLY__ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /************************************************************************************ * Public Function Prototypes ************************************************************************************/ /************************************************************************************ * Name: stm32l4_board_initialize * * Description: * All STM32L4 architectures must provide the following entry point. This entry point * is called early in the initialization -- after all memory has been configured * and mapped but before any devices have been initialized. * ************************************************************************************/ void stm32l4_board_initialize(void); #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __CONFIGS_STM32L476VG_DISCO_INCLUDE_BOARD_H */