2021-07-31 20:56:49 +02:00
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/****************************************************************************
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* boards/mips/pic32mz/chipkit-wifire/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_MIPS_PIC32MZ_CHIPKIT_WIFIRE_INCLUDE_BOARD_H
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#define __BOARDS_MIPS_PIC32MZ_CHIPKIT_WIFIRE_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 <stdbool.h>
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Clocking *****************************************************************/
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/* Crystal frequencies
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*
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* - A 24 MHz oscillator circuit (IC7) is connected to the on-board
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* microcontroller. This oscillator circuit functions as the controller’s
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* primary oscillator.
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* - The starter kit also has provisions for an external secondary 32 kHz
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* oscillator (X2); however, this is not populated.
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*/
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#define BOARD_POSC_FREQ 24000000 /* Primary OSC XTAL frequency (IC7, 24MHz) */
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#define BOARD_SOSC_FREQ 32000 /* Secondary OSC XTAL frequency (X2, 32KHz) */
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/* Oscillator modes.
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*
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* - BOARD_POSC_ECMODE: An external oscillator is connected to OSC1/OSC2
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* - BOARD_POSC_HSMODE: An external crystal or resonator is connected to
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* OSC1/OSC2
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*/
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#define BOARD_FNOSC_SPLL 1 /* Use system PLL */
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#define BOARD_POSC_ECMODE 1 /* External clock (EC) mode */
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#define BOARD_POSC_SWITCH 1 /* Enable clock switching */
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#undef BOARD_POSC_FSCM /* Disable clock monitoring */
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/* PLL configuration and resulting CPU clock.
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* CPU_CLOCK = ((POSC_FREQ / IDIV) * MULT) / ODIV
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*/
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#define BOARD_PLL_INPUT BOARD_POSC_FREQ
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#define BOARD_PLL_IDIV 3 /* PLL input divider */
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#define BOARD_PLL_MULT 50 /* PLL multiplier */
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#define BOARD_PLL_ODIV 2 /* PLL output divider */
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#define BOARD_CPU_CLOCK 200000000 /* CPU clock: 200MHz = (24MHz / 3) * 50 / 2) */
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/* Peripheral clocks */
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/* PBCLK1
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* Peripherals: OSC2 pin
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*
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* NOTES:
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* - PBCLK1 is used by system modules and cannot be turned off
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* - PBCLK1 divided by 2 is available on the OSC2 pin in certain clock
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* modes.
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*/
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#define BOARD_PB1DIV 5 /* Divider = 5 */
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#define BOARD_PBCLK1 40000000 /* PBCLK1 frequency = 200MHz/5 = 40MHz */
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/* PBCLK2
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* Peripherals: PMP, I2C, UART, SPI
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*/
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#define BOARD_PBCLK2_ENABLE 1 /* Enable PBCLK2 */
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#define BOARD_PB2DIV 2 /* Divider = 2 */
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#define BOARD_PBCLK2 100000000 /* PBCLK2 frequency = 200MHz/2 = 100MHz */
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/* PBCLK3
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* Peripherals: ADC, Comparator, Timers, Output Compare, Input Compare
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*
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* NOTES:
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* - Timer 1 uses SOSC
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*/
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#define BOARD_PBCLK3_ENABLE 1 /* Enable PBCLK3 */
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#define BOARD_PB3DIV 4 /* Divider = 4 */
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#define BOARD_PBCLK3 50000000 /* PBCLK3 frequency = 200MHz/4 = 50MHz */
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/* PBCLK4
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* Peripherals: Ports
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*/
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#define BOARD_PBCLK4_ENABLE 1 /* Enable PBCLK4 */
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#define BOARD_PB4DIV 2 /* Divider = 2 */
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#define BOARD_PBCLK4 100000000 /* PBCLK4 frequency = 200MHz/2 = 100MHz */
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/* PBCLK5
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* Peripherals: Flash, Crypto, RND, USB, Ethernet, SQI
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*
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* NOTES:
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* - PBCLK5 is used to fetch data from/to the Flash Controller, while the
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* FRC clock is used for programming
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*/
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#define BOARD_PBCLK5_ENABLE 1 /* Enable PBCLK5 */
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#define BOARD_PB5DIV 2 /* Divider = 2 */
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#define BOARD_PBCLK5 100000000 /* PBCLK5 frequency = 200MHz/2 = 100MHz */
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/* PBCLK6
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* Peripherals:
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*/
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#undef BOARD_PBCLK6_ENABLE
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/* PBCLK7
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* Peripherals: CPU, Deadman timer
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*/
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#undef BOARD_PBCLK7_ENABLE
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/* PBCLK8
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* Peripherals: EBI
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*/
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#undef BOARD_PBCLK8_ENABLE
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/* Watchdog pre-scaler (re-visit) */
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#define BOARD_WD_PRESCALER 1048576 /* Watchdog pre-scaler */
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/* Ethernet MII clocking.
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*
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* The clock divider used to create the MII Management Clock (MDC). The MIIM
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* module uses the PBCLK5 as an input clock. According to the IEEE 802.3
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* Specification this should be no faster than 2.5 MHz. However, some PHYs
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* support clock rates up to 12.5 MHz.
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*/
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#define BOARD_EMAC_MIIM_DIV 40 /* Ideal: 100MHz/40 = 2.5MHz */
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/* LED definitions **********************************************************/
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/* There are four LEDs on the top side of the board:
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* controlled by software:
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*
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* LED LD1 - RG6
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* LED LD2 - RD4
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* LED LD3 - RB11
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* LED LD4 - RG15
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*
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* A high output value illuminates the LEDs.
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*/
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/* LED index values for use with board_userled(): */
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# define BOARD_LED_LD1 0
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# define BOARD_LED_LD2 1
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# define BOARD_LED_LD3 2
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# define BOARD_LED_LD4 3
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# define BOARD_NLEDS 4
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/* LED bits for use with board_userled_all() */
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# define BOARD_LED_LD1_BIT (1 << BOARD_LED_LD1)
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# define BOARD_LED_LD2_BIT (1 << BOARD_LED_LD2)
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# define BOARD_LED_LD3_BIT (1 << BOARD_LED_LD3)
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# define BOARD_LED_LD4_BIT (1 << BOARD_LED_LD4)
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/* These LEDs are available to the application and are all available to the
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* application unless CONFIG_ARCH_LEDS is defined. In that case, the usage
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* by the board port is defined in include/board.h and
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* src/pic32mz_autoleds.c. The LEDs are used to encode OS-related events
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* as follows:
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*
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* SYMBOL MEANING LED STATE
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* A B C D
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* ---------------- ----------------------- --- --- --- ---
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*/
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#define LED_STARTED 0 /* NuttX has been started ON OFF OFF OFF */
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#define LED_HEAPALLOCATE 1 /* Heap has been allocated OFF ON OFF OFF */
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#define LED_IRQSENABLED 2 /* Interrupts enabled OFF OFF ON OFF */
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#define LED_STACKCREATED 3 /* Idle stack created OFF OFF OFF ON */
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#define LED_INIRQ 4 /* In an interrupt ON ON ON ON */
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#define LED_SIGNAL 4 /* In a signal handler ON ON ON ON */
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#define LED_ASSERTION 4 /* An assertion failed ON ON ON ON */
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#define LED_PANIC 4 /* The system has crashed ON ON ON ON */
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#undef LED_IDLE /* MCU is is sleep mode ---- Not used - */
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/* Switch definitions *******************************************************/
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/* The chipKIT Wi-Fire has 2 user push buttons labeled BTN1 and BTN2 on the
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* white side of the board:
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*
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* PIN Button Notes
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* ----- ---- -------------------------
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* RA5 BTN1 Sensed low when closed
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* RA4 BTN2 Sensed low when closed
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*
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* The switches have external pull-down resistors. The switches are
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* pulled down and pulled up to +3.3V when pressed.
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*/
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#define BUTTON_BTN1 0
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#define BUTTON_BTN2 1
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#define NUM_BUTTONS 2
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#define BUTTON_BTN1_BIT (1 << BUTTON_BTN1)
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#define BUTTON_BTN2_BIT (1 << BUTTON_BTN2)
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/* UARTS ********************************************************************/
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#define BOARD_U4RX_PPS U4RXR_RPF2
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#define BOARD_U4TX_PPS U4TX_RPF8R
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/* SPI **********************************************************************/
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/* SPI1 is available on pins D5,D7,D35,D36 of the Arduino Shield connectors
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* where you would expect them. The SPI connector is configured as follows:
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*
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* Pin J7&10 Board Signal PIC32MZ
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* --- -- ------------ -------
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* D5 11 SPI1_SCK RD1
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* D36 6 SPI1_MISO RF1
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* D35 4 SPI1_MOSI RC1
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* D7 15 SPI1_SS RE9
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*
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* SPI2 is available on pins D10-D13 of the Arduino Shield connectors where
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* you would expect them. The SPI connector is configured as follows:
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*
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* Pin J7&10 Board Signal PIC32MZ
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* --- -- ------------ -------
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* D13 11 SPI2_SCK RG6
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* D12 9 SPI2_MISO RF0
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* D11 7 SPI2_MOSI RD11
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* D10 5 SPI2_SS RG9
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*
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* SPI3 is available on microSD connector as follows:
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*
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* Pin Board Signal PIC32MZ
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* ---- ------------ -------
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* SCK SPI3_SCK RB14
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* SDO SPI3_MISO RB10
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* SDI SPI3_MOSI RC4
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* CS SPI3_SS RC3
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*
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* SPI4 is connected to MRF24WG0MA WiFi module as follows:
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*
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* Pin Board Signal PIC32MZ
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* ---- ------------ -------
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* SCK SPI4_SCK RD10
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* SDO SPI4_MISO RF5
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* SDI SPI4_MOSI RG0
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* CS SPI4_SS RD9
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*
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* Chip select pin definitions are provided in
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* boards/mips/chipkit-wifire/src/chipkit-wifire.h.
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*
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* CLK (output) pins have no alternative pin configurations.
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*/
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#define BOARD_SDI1_PPS SDI1R_RPF1
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#define BOARD_SDO1_PPS SDO1_RPC1R
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#define BOARD_SDI2_PPS SDI2R_RPF0
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#define BOARD_SDO2_PPS SDO2_RPD11R
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#define BOARD_SDI3_PPS SDI3R_RPB10
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#define BOARD_SDO3_PPS SDO3_RPC4R
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#define BOARD_SDI4_PPS SDI4R_RPF5
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#define BOARD_SDO4_PPS SDO4_RPG0R
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/****************************************************************************
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* Public Types
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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#ifdef __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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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __BOARDS_MIPS_PIC32MZ_CHIPKIT_WIFIRE_INCLUDE_BOARD_H */
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