/**************************************************************************** * boards/arm/max326xx/max32660-evsys/include/board.h * * Copyright (C) 2018 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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 __BOARDS_ARM_MAX326XX_MAX32660_EVSYS_INCLUDE_BOARD_H #define __BOARDS_ARM_MAX326XX_MAX32660_EVSYS_INCLUDE_BOARD_H /**************************************************************************** * Included Files ****************************************************************************/ #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Clocking *****************************************************************/ #define BOARD_HAVE_X32K 1 /* Have external 32.786KHz crystal oscialltor */ /* LED definitions **********************************************************/ /* The MAX32660-EVSYS board has a single red LED is connected to GPIO P0.13 * for general user indication. A low value illuminates the LED. * * If CONFIG_ARCH_LEDS is not defined, then the user can control the LED in * any way. The following definitions are used to access individual LEDs. */ /* LED index values for use with board_userled() */ #define BOARD_LED 0 #define BOARD_NLEDS 1 /* LED bits for use with board_userled_all() */ #define BOARD_LED_BIT (1 << BOARD_LED) /* This LED is 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/max326_autoleds.c. The LEDs are used to * encode OS-related events as follows: * * ------------------- ---------------------------- ------ * SYMBOL Meaning LED * ------------------- ---------------------------- ------ */ #define LED_STARTED 0 /* NuttX has been started OFF */ #define LED_HEAPALLOCATE 0 /* Heap has been allocated OFF */ #define LED_IRQSENABLED 0 /* Interrupts enabled OFF */ #define LED_STACKCREATED 1 /* Idle stack created ON */ #define LED_INIRQ 2 /* In an interrupt N/C */ #define LED_SIGNAL 2 /* In a signal handler N/C */ #define LED_ASSERTION 2 /* An assertion failed N/C */ #define LED_PANIC 3 /* The system has crashed FLASH */ #undef LED_IDLE /* MCU is is sleep mode Not used */ /* Thus if LED is statically on, NuttX has successfully booted and is, * apparently, running normally. If LED is flashing at approximately * 2Hz, then a fatal error has been detected and the system has halted. */ /* Button definitions *******************************************************/ /* Buttons * * An single button, SW2, is available on GPIO P0.12 for use by software. A * low value will be sensed when the button is pressed. * * NOTE: There are no pull-up resistors connected to the generic user buttons * so it is necessary to enable the internal pull-up in the SAM E70 to use * the button. */ #define BUTTON_SW2 0 #define NUM_BUTTONS 1 #define BUTTON_SW2_BIT (1 << BUTTON_SW2) /* Pin Disambiguation *******************************************************/ /* UART0: No alternative pin configurations: * * PORT0 PIN SPI FUNCTION ALT FUNCTION COMMENT * ------ ---- ------------ ------------ ---------------------------- * P0.4 5 TX ALT2 * P0.5 6 RX ALT2 * P0.7 10 CTS ALT2 * P0.8 12 RTS ALT2 Conflicts with I2C0 SDA */ /* UART1: * * UART1 Tx and Rx signals at port P0.10 and P0.11 are connected to the * programming and debug header JH2 pins 2 and 3 through 1kΩ resistors. * This provides a convenient way to communicate with a PC though the * virtual serial port available in Maxim’s CMSIS-DAP debug adapter. The * series resistors allow for these signals to be overdriven by other * circuits without modifying the board. */ #define GPIO_UART1_RX GPIO_UART1_RX_3 /* P0.11 */ #define GPIO_UART1_TX GPIO_UART1_TX_3 /* P0.10 */ /* SPI0: No alternative pin configurations: * * PORT0 PIN SPI FUNCTION ALT FUNCTION COMMENT * ------ ---- ------------ ------------ ---------------------------- * P0.4 5 MISO ALT1 * P0.5 6 MOSI ALT1 * P0.6 8 SCK ALT1 * P0.7 10 SS0 ALT1 */ /* SPI1: Not recommended. Not usable in current state due to pin * conflicts: * * PORT0 PIN SPI FUNCTION ALT FUNCTION COMMENT * ------ ---- ------------ ------------ ---------------------------- * P0.0 13 MISO ALT2 Conflicts with JTAG SWD * P0.1 11 MOSI ALT2 Conflicts with JTAG SWD * P0.2 9 SCK ALT2 Conflicts with I2C1 SCL * P0.3 7 SS0 ALT2 Conflicts with I2C1 SDA * P0.10 2 MISO ALT1 Conflicts with serial console * P0.11 4 MOSI ALT1 Conflicts with serial console * P0.12 1 SCK ALT1 * P0.13 3 SS0 ALT1 */ #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_SPI1_SS0 GPIO_SPI1_SS0_1 /* I2C0: No alternative pin configurations * * PORT0 PIN SPI FUNCTION ALT FUNCTION COMMENT * ------ ---- ------------ ------------ ---------------------------- * P0.8 12 SCL ALT1 Conflicts with UART0 RTS * P0.9 14 SDA ALT1 */ #define GPIO_I2C1_SCL (GPIO_ALT1 | GPIO_PORT0 | GPIO_PIN2) #define GPIO_I2C1_SDA (GPIO_ALT1 | GPIO_PORT0 | GPIO_PIN3) /* I2C1: No alternative pin configurations * * PORT0 PIN SPI FUNCTION ALT FUNCTION COMMENT * ------ ---- ------------ ------------ ---------------------------- * P0.2 9 SCL ALT1 Conflicts with SPI1 SCK * P0.3 7 SDA ALT1 Conflicts with SPI1 SS0 */ /* DMA **********************************************************************/ #endif /* __BOARDS_ARM_MAX326XX_MAX32660_EVSYS_INCLUDE_BOARD_H */