175 lines
6.9 KiB
C
175 lines
6.9 KiB
C
/****************************************************************************
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* boards/arm/max326xx/max32660-evsys/include/board.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __BOARDS_ARM_MAX326XX_MAX32660_EVSYS_INCLUDE_BOARD_H
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#define __BOARDS_ARM_MAX326XX_MAX32660_EVSYS_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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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Clocking *****************************************************************/
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#define BOARD_HAVE_X32K 1 /* Have external 32.786KHz crystal oscialltor */
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/* LED definitions **********************************************************/
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/* The MAX32660-EVSYS board has a single red LED is connected to GPIO P0.13
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* for general user indication. A low value illuminates the LED.
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*
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* If CONFIG_ARCH_LEDS is not defined, then the user can control the LED in
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* any way. The following definitions are used to access individual LEDs.
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*/
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/* LED index values for use with board_userled() */
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#define BOARD_LED 0
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#define BOARD_NLEDS 1
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/* LED bits for use with board_userled_all() */
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#define BOARD_LED_BIT (1 << BOARD_LED)
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/* This LED is 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/max326_autoleds.c. The LEDs are used to
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* encode OS-related events as follows:
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*
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* ------------------- ---------------------------- ------
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* SYMBOL Meaning LED
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* ------------------- ---------------------------- ------
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*/
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#define LED_STARTED 0 /* NuttX has been started OFF */
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#define LED_HEAPALLOCATE 0 /* Heap has been allocated OFF */
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#define LED_IRQSENABLED 0 /* Interrupts enabled OFF */
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#define LED_STACKCREATED 1 /* Idle stack created ON */
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#define LED_INIRQ 2 /* In an interrupt N/C */
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#define LED_SIGNAL 2 /* In a signal handler N/C */
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#define LED_ASSERTION 2 /* An assertion failed N/C */
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#define LED_PANIC 3 /* The system has crashed FLASH */
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#undef LED_IDLE /* MCU is is sleep mode Not used */
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/* Thus if LED is statically on, NuttX has successfully booted and is,
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* apparently, running normally. If LED is flashing at approximately
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* 2Hz, then a fatal error has been detected and the system has halted.
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*/
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/* Button definitions *******************************************************/
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/* Buttons
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*
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* An single button, SW2, is available on GPIO P0.12 for use by software. A
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* low value will be sensed when the button is pressed.
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*
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* NOTE: There are no pull-up resistors connected to the generic user buttons
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* so it is necessary to enable the internal pull-up in the SAM E70 to use
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* the button.
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*/
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#define BUTTON_SW2 0
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#define NUM_BUTTONS 1
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#define BUTTON_SW2_BIT (1 << BUTTON_SW2)
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/* Pin Disambiguation *******************************************************/
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/* UART0: No alternative pin configurations:
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*
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* PORT0 PIN SPI FUNCTION ALT FUNCTION COMMENT
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* ------ ---- ------------ ------------ ----------------------------
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* P0.4 5 TX ALT2
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* P0.5 6 RX ALT2
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* P0.7 10 CTS ALT2
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* P0.8 12 RTS ALT2 Conflicts with I2C0 SDA
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*/
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/* UART1:
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*
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* UART1 Tx and Rx signals at port P0.10 and P0.11 are connected to the
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* programming and debug header JH2 pins 2 and 3 through 1kΩ resistors.
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* This provides a convenient way to communicate with a PC though the
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* virtual serial port available in Maxim’s CMSIS-DAP debug adapter. The
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* series resistors allow for these signals to be overdriven by other
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* circuits without modifying the board.
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*/
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#define GPIO_UART1_RX GPIO_UART1_RX_3 /* P0.11 */
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#define GPIO_UART1_TX GPIO_UART1_TX_3 /* P0.10 */
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/* SPI0: No alternative pin configurations:
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*
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* PORT0 PIN SPI FUNCTION ALT FUNCTION COMMENT
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* ------ ---- ------------ ------------ ----------------------------
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* P0.4 5 MISO ALT1
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* P0.5 6 MOSI ALT1
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* P0.6 8 SCK ALT1
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* P0.7 10 SS0 ALT1
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*/
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/* SPI1: Not recommended. Not usable in current state due to pin
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* conflicts:
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*
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* PORT0 PIN SPI FUNCTION ALT FUNCTION COMMENT
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* ------ ---- ------------ ------------ ----------------------------
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* P0.0 13 MISO ALT2 Conflicts with JTAG SWD
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* P0.1 11 MOSI ALT2 Conflicts with JTAG SWD
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* P0.2 9 SCK ALT2 Conflicts with I2C1 SCL
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* P0.3 7 SS0 ALT2 Conflicts with I2C1 SDA
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* P0.10 2 MISO ALT1 Conflicts with serial console
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* P0.11 4 MOSI ALT1 Conflicts with serial console
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* P0.12 1 SCK ALT1
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* P0.13 3 SS0 ALT1
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*/
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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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#define GPIO_SPI1_SS0 GPIO_SPI1_SS0_1
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/* I2C0: No alternative pin configurations
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*
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* PORT0 PIN SPI FUNCTION ALT FUNCTION COMMENT
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* ------ ---- ------------ ------------ ----------------------------
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* P0.8 12 SCL ALT1 Conflicts with UART0 RTS
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* P0.9 14 SDA ALT1
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*/
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#define GPIO_I2C1_SCL (GPIO_ALT1 | GPIO_PORT0 | GPIO_PIN2)
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#define GPIO_I2C1_SDA (GPIO_ALT1 | GPIO_PORT0 | GPIO_PIN3)
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/* I2C1: No alternative pin configurations
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*
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* PORT0 PIN SPI FUNCTION ALT FUNCTION COMMENT
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* ------ ---- ------------ ------------ ----------------------------
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* P0.2 9 SCL ALT1 Conflicts with SPI1 SCK
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* P0.3 7 SDA ALT1 Conflicts with SPI1 SS0
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*/
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/* DMA **********************************************************************/
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#endif /* __BOARDS_ARM_MAX326XX_MAX32660_EVSYS_INCLUDE_BOARD_H */
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