/**************************************************************************** * boards/arm/samv7/same70-qmtech/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_SAMV7_SAME70_QMTECH_INCLUDE_BOARD_H #define __BOARDS_ARM_SAMV7_SAME70_QMTECH_INCLUDE_BOARD_H /**************************************************************************** * Included Files ****************************************************************************/ #include #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Clocking *****************************************************************/ /* After power-on reset, the SAME70N 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 are two on-board crystals: */ #define BOARD_HAVE_SLOWXTAL 1 /* Slow crystal is populated */ #define BOARD_SLOWCLK_FREQUENCY (32768) /* 32.768 kHz slow crystal oscillator */ #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 PA15. */ /* 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) /* This LED is 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 QMTECH contains two mechanical buttons. One button is the RESET * button connected to the SAM E70 reset line and the other, PA21, 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-QMTECH 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-QMTECH 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. */ /**************************************************************************** * Public Types ****************************************************************************/ /**************************************************************************** * Public Data ****************************************************************************/ #ifndef __ASSEMBLY__ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /**************************************************************************** * Public Functions Definitions ****************************************************************************/ /**************************************************************************** * 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 /* __BOARDS_ARM_SAMV7_SAME70_QMTECH_INCLUDE_BOARD_H */