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- /************************************************************************************
- * configs/same70-xplained/include/board.h
- *
- * Copyright (C) 2015 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * 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 __CONFIGS_SAME70_XPLAINED_INCLUDE_BOARD_H
- #define __CONFIGS_SAME70_XPLAINED_INCLUDE_BOARD_H
- /************************************************************************************
- * Included Files
- ************************************************************************************/
- #include <nuttx/config.h>
- #include <stdbool.h>
- /************************************************************************************
- * Pre-processor Definitions
- ************************************************************************************/
- /* Clocking *************************************************************************/
- /* After power-on reset, the SAME70Q device is running out of the Master Clock using
- * the Fast RC Oscillator running at 4 MHz.
- *
- * MAINOSC: Frequency = 12MHz (crystal)
- *
- * 300MHz Settings:
- * PLLA: PLL Divider = 1, Multiplier = 20 to generate PLLACK = 240MHz
- * Master Clock (MCK): Source = PLLACK, Prescalar = 1 to generate MCK = 120MHz
- * CPU clock: 120MHz
- *
- * There can be two on-board crystals. However, the 32.768 crystal is not
- * populated on the stock SAME70. The fallback is to use th on-chip, slow RC
- * oscillator which has a frequency of 22-42 KHz, nominally 32 KHz.
- */
- #undef BOARD_HAVE_SLOWXTAL /* Slow crystal not populated */
- #define BOARD_SLOWCLK_FREQUENCY (32000) /* 32 KHz RC oscillator (nominal) */
- #define BOARD_MAINOSC_FREQUENCY (12000000) /* 12 MHz main oscillator */
- /* Main oscillator register settings.
- *
- * The main oscillator could be either the embedded 4/8/12 MHz fast RC oscillators
- * or an external 3-20 MHz crystal or ceramic resonator. The external clock source
- * is selected by default in sam_clockconfig.c. Here we need to specify the main
- * oscillator start-up time.
- *
- * REVISIT... this is old information:
- * 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 */
- #define BOARD_CKGR_MOR_MOSCXTENBY (PMC_CKGR_MOR_MOSCXTEN) /* Crystal Oscillator Enable */
- /* PLLA configuration.
- *
- * Divider = 1
- * Multiplier = 25
- *
- * Yields:
- *
- * PLLACK = 25 * 12MHz / 1 = 300MHz
- */
- #define BOARD_CKGR_PLLAR_STMODE PMC_CKGR_PLLAR_STMODE_FAST
- #define BOARD_CKGR_PLLAR_COUNT (63 << PMC_CKGR_PLLAR_COUNT_SHIFT)
- #define BOARD_CKGR_PLLAR_MUL PMC_CKGR_PLLAR_MUL(24)
- #define BOARD_CKGR_PLLAR_DIV PMC_CKGR_PLLAR_DIV_BYPASS
- /* PMC master clock register settings.
- *
- * BOARD_PMC_MCKR_CSS - The source of main clock input. This may be one of:
- *
- * PMC_MCKR_CSS_SLOW Slow Clock
- * PMC_MCKR_CSS_MAIN Main Clock
- * PMC_MCKR_CSS_PLLA PLLA Clock
- * PMC_MCKR_CSS_UPLL Divided UPLL Clock
- *
- * BOARD_PMC_MCKR_PRES - Source clock pre-scaler. May be one of:
- *
- * PMC_MCKR_PRES_DIV1 Selected clock
- * PMC_MCKR_PRES_DIV2 Selected clock divided by 2
- * PMC_MCKR_PRES_DIV4 Selected clock divided by 4
- * PMC_MCKR_PRES_DIV8 Selected clock divided by 8
- * PMC_MCKR_PRES_DIV16 Selected clock divided by 16
- * PMC_MCKR_PRES_DIV32 Selected clock divided by 32
- * PMC_MCKR_PRES_DIV64 Selected clock divided by 64
- * PMC_MCKR_PRES_DIV3 Selected clock divided by 3
- *
- * The prescaler determines (1) the CPU clock and (2) the input into the
- * second divider that then generates the Master Clock (MCK). MCK is the
- * source clock of the peripheral clocks.
- *
- * BOARD_PMC_MCKR_MDIV - MCK divider. May be one of:
- *
- * PMC_MCKR_MDIV_DIV1 Master Clock = Prescaler Output Clock / 1
- * PMC_MCKR_MDIV_DIV2 Master Clock = Prescaler Output Clock / 2
- * PMC_MCKR_MDIV_DIV4 Master Clock = Prescaler Output Clock / 4
- * PMC_MCKR_MDIV_DIV3 Master Clock = Prescaler Output Clock / 3
- */
- #define BOARD_PMC_MCKR_CSS PMC_MCKR_CSS_PLLA /* Source = PLLA */
- #define BOARD_PMC_MCKR_PRES PMC_MCKR_PRES_DIV1 /* Prescaler = /1 */
- #define BOARD_PMC_MCKR_MDIV PMC_MCKR_MDIV_DIV2 /* MCK divider = /2 */
- /* USB clocking */
- #define BOARD_PMC_MCKR_UPLLDIV2 0 /* UPLL clock not divided by 2 */
- /* Resulting frequencies */
- #define BOARD_PLLA_FREQUENCY (300000000) /* PLLACK: 25 * 12Mhz / 1 */
- #define BOARD_CPU_FREQUENCY (300000000) /* CPU: PLLACK / 1 */
- #define BOARD_MCK_FREQUENCY (150000000) /* MCK: PLLACK / 1 / 2 */
- #undef BOARD_UPLL_FREQUENCY /* To be provided */
- /* HSMCI clocking
- *
- * Multimedia Card Interface clock (MCCK or MCI_CK) is Master Clock (MCK)
- * divided by (2*(CLKDIV) + CLOCKODD + 2).
- *
- * MCI_SPEED = MCK / (2*CLKDIV + CLOCKODD + 2)
- *
- * Where CLKDIV has a range of 0-255.
- */
- /* MCK = 150MHz, CLKDIV = 186, MCI_SPEED = 150MHz / (2*186 + 1 + 2) = 400 KHz */
- #define HSMCI_INIT_CLKDIV ((186 << HSMCI_MR_CLKDIV_SHIFT) | HSMCI_MR_CLKODD)
- /* MCK = 150MHz, CLKDIV = 3 w/CLOCKODD, MCI_SPEED = 150MHz /(2*3 + 0 + 2) = 18.75 MHz */
- #define HSMCI_MMCXFR_CLKDIV (2 << HSMCI_MR_CLKDIV_SHIFT)
- /* MCK = 150MHz, CLKDIV = 2, MCI_SPEED = 150MHz /(2*2 + 0 + 2) = 25 MHz */
- #define HSMCI_SDXFR_CLKDIV (2 << HSMCI_MR_CLKDIV_SHIFT)
- #define HSMCI_SDWIDEXFR_CLKDIV HSMCI_SDXFR_CLKDIV
- /* FLASH wait states.
- *
- * Wait states Max frequency at 105 centigrade (STH conditions)
- *
- * VDDIO
- * 1.62V 2.7V
- * --- ------- -------
- * 0 26 MHz 30 MHz
- * 1 52 MHz 62 MHz
- * 2 78 MHz 93 MHz
- * 3 104 MHz 124 MHz
- * 4 131 MHz 150 MHz
- * 5 150 MHz --- MHz
- *
- * Given: VDDIO=3.3V, VDDCORE=1.2V, MCK=150MHz
- */
- #define BOARD_FWS 4
- /* LED definitions ******************************************************************/
- /* LEDs
- *
- * A single LED is available driven by PC8.
- */
- /* LED index values for use with board_userled() */
- #define BOARD_LED0 0
- #define BOARD_NLEDS 1
- /* LED bits for use with board_userled_all() */
- #define BOARD_LED0_BIT (1 << BOARD_LED0)
- /* These LEDs are 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/sam_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 is 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
- *
- * SAM E70 Xplained contains two mechanical buttons. One button is the RESET
- * button connected to the SAM E70 reset line and the other, PA11, is a generic
- * user configurable button. When a button is pressed it will drive the I/O
- * line to GND.
- *
- * 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_SW0 0
- #define NUM_BUTTONS 1
- #define BUTTON_SW0_BIT (1 << BUTTON_SW0)
- /* PIO Disambiguation ***************************************************************/
- /* Serial Console
- *
- * The SAME70-XPLD has no on-board RS-232 drivers so it will be necessary to use
- * either the VCOM or an external RS-232 driver. Here are some options.
- *
- * - Arduino Serial Shield: One option is to use an Arduino-compatible
- * serial shield. This will use the RXD and TXD signals available at pins
- * 0 an 1, respectively, of the Arduino "Digital Low" connector. On the
- * SAME70-XPLD board, this corresponds to UART3:
- *
- * ------ ------ ------- ------- --------
- * Pin on SAME70 Arduino Arduino SAME70
- * J503 PIO Name Pin Function
- * ------ ------ ------- ------- --------
- * 1 PD28 RX0 0 URXD3
- * 2 PD30 TX0 1 UTXD3
- * ------ ------ ------- ------- --------
- *
- * There are alternative pin selections only for UART3 TXD:
- */
- #define GPIO_UART3_TXD GPIO_UART3_TXD_1
- /* - Arduino Communications. Additional UART/USART connections are available
- * on the Arduino Communications connection J505:
- *
- * ------ ------ ------- ------- --------
- * Pin on SAME70 Arduino Arduino SAME70
- * J503 PIO Name Pin Function
- * ------ ------ ------- ------- --------
- * 3 PD18 RX1 0 URXD4
- * 4 PD19 TX1 0 UTXD4
- * 5 PD15 RX2 0 RXD2
- * 6 PD16 TX2 0 TXD2
- * 7 PB0 RX3 0 RXD0
- * 8 PB1 TX3 1 TXD0
- * ------ ------ ------- ------- --------
- *
- * There are alternative pin selections only for UART4 TXD:
- */
- #define GPIO_UART4_TXD GPIO_UART4_TXD_1
- /* - SAMV7-XULT EXTn connectors. USART pins are also available the EXTn
- * connectors. The following are labelled in the User Guide for USART
- * functionality:
- *
- * ---- -------- ------ --------
- * EXT1 EXTI1 SAME70 SAME70
- * Pin Name PIO Function
- * ---- -------- ------ --------
- * 13 USART_RX PB00 RXD0
- * 14 USART_TX PB01 TXD0
- *
- * ---- -------- ------ --------
- * EXT2 EXTI2 SAME70 SAME70
- * Pin Name PIO Function
- * ---- -------- ------ --------
- * 13 USART_RX PA21 RXD1
- * 14 USART_TX PB04 TXD1
- *
- * There are no alternative pin selections for USART0 or USART1.
- */
- /* - VCOM. The Virtual Com Port gateway is available on USART1:
- *
- * ------ --------
- * SAME70 SAME70
- * PIO Function
- * ------ --------
- * PB04 TXD1
- * PA21 RXD1
- * ------ --------
- *
- * There are no alternative pin selections for USART1.
- */
- /* MCAN1
- *
- * SAM E70 Xplained has two MCAN modules that performs communication according
- * to ISO11898-1 (Bosch CAN specification 2.0 part A,B) and Bosch CAN FD
- * specification V1.0. MCAN1 is connected to an on-board ATA6561 CAN physical-layer
- * transceiver.
- *
- * ------- -------- -------- -------------
- * SAM E70 FUNCTION ATA6561 SHARED
- * PIN FUNCTION FUNCTIONALITY
- * ------- -------- -------- -------------
- * PC14 CANTX1 TXD Shield
- * PC12 CANRX1 RXD Shield
- * ------- -------- -------- -------------
- */
- #define GPIO_MCAN1_TX GPIO_MCAN1_TX_2
- #define GPIO_MCAN1_RX GPIO_MCAN1_RX_2
- /************************************************************************************
- * Public Types
- ************************************************************************************/
- /************************************************************************************
- * Public Data
- ************************************************************************************/
- #ifndef __ASSEMBLY__
- #undef EXTERN
- #if defined(__cplusplus)
- #define EXTERN extern "C"
- extern "C"
- {
- #else
- #define EXTERN extern
- #endif
- /************************************************************************************
- * Public Functions
- ************************************************************************************/
- /************************************************************************************
- * Name: sam_lcdclear
- *
- * Description:
- * This is a non-standard LCD interface just for the SAM4e-EK board. Because
- * of the various rotations, clearing the display in the normal way by writing a
- * sequences of runs that covers the entire display can be very slow. Here the
- * display is cleared by simply setting all GRAM memory to the specified color.
- *
- ************************************************************************************/
- void sam_lcdclear(uint16_t color);
- #undef EXTERN
- #if defined(__cplusplus)
- }
- #endif
- #endif /* __ASSEMBLY__ */
- #endif /* __CONFIGS_SAME70_XPLAINED_INCLUDE_BOARD_H */
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