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incubator-nuttx/boards/arm/sam34/flipnclick-sam3x/include/board.h

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/****************************************************************************
* boards/arm/sam34/flipnclick-sam3x/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_SAM34_FLIPNCLICK_SAM3X_INCLUDE_BOARD_H
#define __BOARDS_ARM_SAM34_FLIPNCLICK_SAM3X_INCLUDE_BOARD_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
# include <stdbool.h>
# ifdef CONFIG_SAM34_GPIO_IRQ
# include <arch/irq.h>
# endif
#endif
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Clocking *****************************************************************/
/* After power-on reset, the SAM3X device is running on a 4MHz internal RC.
* These definitions will configure clocking
*
* MAINOSC: Frequency = 12MHz (crystal)
* PLLA: PLL Divider = 1, Multiplier = 14 to generate PLLACK = 168MHz
* Master Clock (MCK): Source = PLLACK, Prescalar = 1 to generate MCK = 84MHz
* CPU clock: 84MHz
*/
#define BOARD_32KOSC_FREQUENCY (32768)
#define BOARD_SCLK_FREQUENCY (BOARD_32KOSC_FREQUENCY)
#define BOARD_MAINOSC_FREQUENCY (12000000) /* MAINOSC: 12MHz crystal on-board */
/* Main oscillator register settings.
*
* The start up time should be should be:
* Start Up Time = 8 * MOSCXTST / SLCK = 56 Slow Clock Cycles.
*/
#define BOARD_CKGR_MOR_MOSCXTST (62 << PMC_CKGR_MOR_MOSCXTST_SHIFT) /* Start-up Time */
/* PLLA configuration.
*
* Divider = 1
* Multiplier = 14
*/
#define BOARD_CKGR_PLLAR_MUL (13 << PMC_CKGR_PLLAR_MUL_SHIFT)
#define BOARD_CKGR_PLLAR_COUNT (63 << PMC_CKGR_PLLAR_COUNT_SHIFT)
#define BOARD_CKGR_PLLAR_DIV PMC_CKGR_PLLAR_DIV_BYPASS
/* PMC master clock register settings.
*
* Source = PLLA
* Divider = 2
*/
#define BOARD_PMC_MCKR_CSS PMC_MCKR_CSS_PLLA
#define BOARD_PMC_MCKR_PRES PMC_MCKR_PRES_DIV2
/* USB UTMI PLL start-up time */
#define BOARD_CKGR_UCKR_UPLLCOUNT (3 << PMC_CKGR_UCKR_UPLLCOUNT_SHIFT)
/* Resulting frequencies */
#define BOARD_PLLA_FREQUENCY (168000000) /* PLLACK: 14 * 12Mhz / 1 */
#define BOARD_MCK_FREQUENCY (84000000) /* MCK: PLLACK / 2 */
#define BOARD_CPU_FREQUENCY (84000000) /* CPU: MCK */
/* HSMCI clocking
*
* Multimedia Card Interface clock (MCCK or MCI_CK) is Master Clock (MCK)
* divided by (2*(CLKDIV+1)).
*
* MCI_SPEED = MCCK / (2*(CLKDIV+1))
* CLKDIV = MCCK / MCI_SPEED / 2 - 1
*
* Where CLKDIV has a range of 0-255.
*/
/* MCK = 84MHz, CLKDIV = 104, MCI_SPEED = 84MHz / 2 * (104+1) = 400 KHz */
#define HSMCI_INIT_CLKDIV (104 << HSMCI_MR_CLKDIV_SHIFT)
/* MCK = 84MHz, CLKDIV = 2, MCI_SPEED = 84MHz / 2 * (2+1) = 14 MHz */
#define HSMCI_MMCXFR_CLKDIV (1 << HSMCI_MR_CLKDIV_SHIFT)
/* MCK = 84MHz, CLKDIV = 1, MCI_SPEED = 84MHz / 2 * (1+1) = 21 MHz */
#define HSMCI_SDXFR_CLKDIV (1 << HSMCI_MR_CLKDIV_SHIFT)
#define HSMCI_SDWIDEXFR_CLKDIV HSMCI_SDXFR_CLKDIV
/* FLASH wait states
*
* FWS MAX FREQUENCY
* 1.62V 1.8V
* --- ----- ------
* 0 17MHz 19MHz
* 1 45MHz 50MHz
* 2 58MHz 64MHz
* 3 70MHz 80MHz
* 4 78MHz 90MHz
*/
#define BOARD_FWS 4
/* LED definitions **********************************************************/
/* There are four LEDs on the top, blue side of the board. Only one can be
* controlled by software:
*
* LED L - PB27 (PWM13)
*
* There are also four LEDs on the back, white side of the board:
*
* LED A - PC6
* LED B - PC5
* LED C - PC7
* LED D - PC8
*
* A high output value illuminates the LEDs.
*/
#ifdef CONFIG_ARCH_LEDS
/* LED index values for use with board_userled(): */
# define BOARD_LED_A 0
# define BOARD_LED_B 1
# define BOARD_LED_C 2
# define BOARD_LED_D 3
# define BOARD_NLEDS 4
/* LED bits for use with board_userled_all() */
# define BOARD_LED_A_BIT (1 << BOARD_LED_A)
# define BOARD_LED_B_BIT (1 << BOARD_LED_B)
# define BOARD_LED_C_BIT (1 << BOARD_LED_C)
# define BOARD_LED_D_BIT (1 << BOARD_LED_D)
#else
/* LED index values for use with board_userled(): */
# define BOARD_LED_L 0
# define BOARD_LED_A 1
# define BOARD_LED_B 2
# define BOARD_LED_C 3
# define BOARD_LED_D 4
# define BOARD_NLEDS 5
/* LED bits for use with board_userled_all() */
# define BOARD_LED_L_BIT (1 << BOARD_LED_L)
# define BOARD_LED_A_BIT (1 << BOARD_LED_A)
# define BOARD_LED_B_BIT (1 << BOARD_LED_B)
# define BOARD_LED_C_BIT (1 << BOARD_LED_C)
# define BOARD_LED_D_BIT (1 << BOARD_LED_D)
#endif
/* These LEDs are available to the application and are all available to the
* application unless CONFIG_ARCH_LEDS is defined.
* In that case, the usage by the board port is defined in include/board.h
* and src/sam_autoleds.c.
* The LEDs are used to encode OS-related events as follows:
*
* SYMBOL MEANING LED STATE
* L A B C D
* ---------------- ----------------------- --- --- --- --- ---
*/
#define LED_STARTED 0 /* NuttX has been started OFF ON OFF OFF OFF */
#define LED_HEAPALLOCATE 1 /* Heap has been allocated OFF OFF ON OFF OFF */
#define LED_IRQSENABLED 2 /* Interrupts enabled OFF OFF OFF ON OFF */
#define LED_STACKCREATED 3 /* Idle stack created OFF OFF OFF OFF ON */
#define LED_INIRQ 4 /* In an interrupt GLO N/C N/C N/C N/C */
#define LED_SIGNAL 4 /* In a signal handler GLO N/C N/C N/C N/C */
#define LED_ASSERTION 4 /* An assertion failed GLO N/C N/C N/C N/C */
#define LED_PANIC 4 /* The system has crashed 2Hz N/C N/C N/C N/C */
#undef LED_IDLE /* MCU is is sleep mode ---- Not used ----- */
/* Thus if LED L is faintly glowing and all other LEDs are off
* (except LED D which was left on but is no longer controlled by NuttX and
* so may be in any state),
* NuttX has successfully booted and is, apparently, running normally and
* taking interrupts.
* If any of LEDs A-D are statically set, then NuttX failed to boot and the
* LED indicates the initialization phase where the failure occurred.
* If LED L is flashing at approximately 2Hz, then a fatal error has been
* detected and the system has halted.
*
* NOTE: After booting, LEDs A-D are no longer used by the system and may be
* controlled the application.
*/
/* Button definitions *******************************************************/
/* There are no buttons on the Arduino Due board. */
/* GPIO pin configurations **************************************************/
/* Universal Asynchronous Receiver Transceiver (UART)
*
* The SAM3X has a UART and 4 USARTS. The Programming port uses a USB-to-
* serial chip connected to the first of the MCU (RX0 and TX0 on PA8 and
* PA9, respectively).
* The output from that port is visible using the Arduino tool.
*
* Any of UART and USART0-3 may be used as a serial console.
* By default, UART0 is used as the serial console in all configurations.
*
* There are no alternatives for these pins.
*/
/* Universal Synchronous Asynchronous Receiver Transmitter (USART)
*
* The RX and TX pins are available on the Arduino connector D0 and D1
* pins, respectively.
* These are connected to USART0, RXD0 and TXD0 which are PA10 and PA11,
* respectively.
*
* There are four Click bus connectors with serial ports available as
* follows:
*
* Click A: USART0 RXD0 and TXD0 which are, again, PA10 and PA11.
* Click B: USART1 RXD1 and TXD1 which are PA12 and PA13, respectively.
* Click C: USART3 RXD3 and TXD3 which are PD5 and PD4, respectively.
* Click D: USART3 RXD3 and TXD3 which are, again, PD5 and PD4.
*
* There are no alternatives for these pins.
*/
/* SPI:
*
* SPI0 is available on the Arduino compatible SPI connector (but no SPI is
* available on pins D10-D13 of the main Arduino Shield connectors where
* you might expect them). The SPI connector is configured as follows:
*
* Pin Board Signal SAM3X Pin Board Signal SAM3X
* --- ------------ ----- --- ------------ -----
* 1 SPI0_MISO PA25 2 VCC-5V N/A
* 3 SPI0_SCK PA27 4 SPI0_MOSI PA26
* 5 MRST NRSTB 6 GND N/A
*
* SPI0 is also available on each of the mikroBUS Click connectors (in
* addition to 5V and GND). The connectivity differs only in the chip
* select pin:
*
* MikroBUS A: MikroBUS B:
* Pin Board Signal SAM3X Pin Board Signal SAM3X
* ---- ------------ ----- ---- ------------ -----
* CS SPI0_CS0 PA28 CS PA29 PA29
* SCK SPI0_SCK PA27 SCK SPI0_SCK PA27
* MISO SPI0_MISO PA25 MISO SPI0_MISO PA25
* MOSI SPI0_MOSI PA26 MOSI SPI0_MOSI PA26
*
* MikroBUS C: MikroBUS D:
* Pin Board Signal SAM3X Pin Board Signal SAM3X
* ---- ------------ ----- ---- ------------ -----
* CS SPI0_CS2 PB21 CS SPI0_CS3 PB23
* SCK SPI0_SCK PA27 SCK SPI0_SCK PA27
* MISO SPI0_MISO PA25 MISO SPI0_MISO PA25
* MOSI SPI0_MOSI PA26 MOSI SPI0_MOSI PA26
*
* Chip select pin definitions are provided in
* boards/arm/sam34/flipnclick-sam3x/src/flipnclick-3x.h.
*
* There are no alternative pin selections for SPI0_MISO and SPIO_MOSI.
*/
#define GPIO_SPI0_SPCK GPIO_SPI0_SPCK_1
/* I2C (aka TWI):
*
* I2C0 is available on pins D16-D17 of the Arduino Shield connectors where
* you would expect them. The SPI connector is configured as follows:
*
* Pin Label J1 Board Signal SAM3X
* --- ----- -- ------------ -----
* D16 SCL1 8 I2C0_SCL PA17
* D17 SDA1 7 I2C0_SDA PA18
*
* I2C0 and I2C1 are also available on the mikroBUS Click connectors (in
* addition to 5V and GND). The connectors A and B share I2C0 with the
* Arduino shield connector. Connectors C and D both connect to I2C1:
*
* MikroBUS A: MikroBUS B:
* Pin Board Signal SAM3X Pin Board Signal SAM3X
* ---- ------------ ----- ---- ------------ -------
* SCL I2C0_SCL PA18 SCL I2C0_SCL PA18
* SDA I2C0_SDA PA17 SDA I2C0_SDA PA17
*
* MikroBUS C: MikroBUS D:
* Pin Board Signal SAM3X Pin Board Signal SAM3X
* ---- ------------ ----- ---- ------------ -------
* SCL I2C1_SCL PB13 SCL I2C1_SCL PB13
* SDA I2C1_SDA PB12 SDA I2C1_SDA PB12
*
* There are no alternative pin selections for TWI0 and TWI1.
*/
#endif /* __BOARDS_ARM_SAM34_FLIPNCLICK_SAM3X_INCLUDE_BOARD_H */
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