nuttx/boards/arm/kl/teensy-lc/include/board.h

/****************************************************************************
 * boards/arm/kl/teensy-lc/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_KL_TEENSY_LC_INCLUDE_BOARD_H
#define __BOARDS_ARM_KL_TEENSY_LC_INCLUDE_BOARD_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

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

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

/* Clocking *****************************************************************/

/* The board has a 16MHz crystal. */

#undef  BOARD_EXTCLOCK                 /* Crystal */
#define BOARD_XTAL_FREQ      16000000  /* 16 MHz crystal frequency (REFCLK) */

/* PLL Configuration.
 *
 *   PLL Input frequency:   PLLIN     = REFCLK / PRDIV0 = 16MHz / 4 = 4 MHz
 *   PLL Output frequency:  PLLOUT    = PLLIN * VDIV0   = 4Mhz * 24 = 96 MHz
 *   MCGPLLCLK Frequency:   MCGPLLCLK = 96MHz
 */

#define BOARD_PRDIV0         4   /* PLL External Reference Divider */
#define BOARD_VDIV0          24  /* PLL VCO Divider (frequency multiplier) */

#define BOARD_PLLIN_FREQ     (BOARD_XTAL_FREQ / BOARD_PRDIV0)
#define BOARD_PLLOUT_FREQ    (BOARD_PLLIN_FREQ * BOARD_VDIV0)
#define BOARD_MCGPLLCLK_FREQ  BOARD_PLLOUT_FREQ

/* MCGOUTCLK:
 * MCG output of either IRC, MCGFLLCLK, MCGPLLCLK, or MCG's external
 * reference clock that sources the core, system, bus, and flash clock.
 *
 * MCGOUTCLK = MCGPLLCLK = 96MHz
 */

#define BOARD_MCGOUTCLK_FREQ  BOARD_MCGPLLCLK_FREQ

/* SIM CLKDIV1 dividers.
 *
 * Core/system clock
 *   MCGOUTCLK divided by OUTDIV1, clocks the ARM Cortex-M0+ core
 *
 * Bus clock
 *   System clock divided by OUTDIV4, clocks the bus slaves and peripherals.
 */

#define BOARD_OUTDIV1        2  /* Core/system = MCGOUTCLK / 2 = 48 MHz */
#define BOARD_OUTDIV4        2  /* Bus clock   = System clock / 2 = 24 MHz */

#define BOARD_CORECLK_FREQ  (BOARD_MCGOUTCLK_FREQ / BOARD_OUTDIV1)
#define BOARD_BUSCLK_FREQ   (BOARD_CORECLK_FREQ / BOARD_OUTDIV4)

/* PWM Configuration */

/* TPM0 Channels */

#define GPIO_TPM0_CH0OUT PIN_TPM0_CH0_2  // Pin 22: PTC1
#define GPIO_TPM0_CH1OUT PIN_TPM0_CH1_2  // Pin 23: PTC2
#define GPIO_TPM0_CH2OUT PIN_TPM0_CH2_2  // Pin  9: PTC3
#define GPIO_TPM0_CH3OUT PIN_TPM0_CH3_1  // Pin 10: PTC4
#define GPIO_TPM0_CH4OUT PIN_TPM0_CH4_2  // Pin  6: PTD4
#define GPIO_TPM0_CH5OUT PIN_TPM0_CH5_3  // Pin 20: PTD5

/* TPM1 Channels */

#define GPIO_TPM1_CH0OUT PIN_TPM1_CH0_2  // Pin 16: PTB0
#define GPIO_TPM1_CH1OUT PIN_TPM1_CH1_2  // Pin 17: PTB1

/* TPM2 Channels */

#define GPIO_TPM2_CH0OUT PIN_TPM2_CH0_1  // Pin  3: PTA1
#define GPIO_TPM2_CH1OUT PIN_TPM2_CH1_1  // Pin  4: PTA2

/* LED definitions **********************************************************/

/* The Teensy LC has a single LED. */

#define LED_STARTED       0  /* LED off */
#define LED_HEAPALLOCATE  0  /* LED off */
#define LED_IRQSENABLED   0  /* LED off */
#define LED_STACKCREATED  1  /* LED on */
#define LED_INIRQ         2  /* LED no change */
#define LED_SIGNAL        2  /* LED no change */
#define LED_ASSERTION     2  /* LED no change */
#define LED_PANIC         3  /* LED flashing */

/* SPI0 Pinout
 * ===========
 *
 */

/* Note that the Teensy maps SCK0 to pin 13 which conflicts with the
 * LED.  Use pin 14 instead.
 */

#define PIN_SPI0_SCK   (PIN_SPI0_SCK_3 | PIN_ALT2_PULLUP)  // Pin 14: PTD1
#define PIN_SPI0_MISO  (PIN_SPI0_MISO_4 | PIN_ALT2_PULLUP) // Pin 12: PTC7
#define PIN_SPI0_MOSI  (PIN_SPI0_MOSI_3 | PIN_ALT2_PULLUP) // Pin 11: PTC6

#define PIN_SPI1_SCK   (PIN_SPI1_SCK_2 | PIN_ALT2_PULLUP)  // Pin 20: PTD5
#define PIN_SPI1_MISO  (PIN_SPI1_MISO_2 | PIN_ALT2_PULLUP) // Pin 1: PTB17
#define PIN_SPI1_MOSI  (PIN_SPI0_MOSI_1 | PIN_ALT2_PULLUP) // Pin 0: PTB16

#endif /* __BOARDS_ARM_KL_TEENSY_LC_INCLUDE_BOARD_H */