/************************************************************************************ * configs/samv71-xult/include/board.h * * Copyright (C) 2015 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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_SAMV71_XULT_INCLUDE_BOARD_H #define __CONFIGS_SAMV71_XULT_INCLUDE_BOARD_H /************************************************************************************ * Included Files ************************************************************************************/ #include /************************************************************************************ * Pre-processor Definitions ************************************************************************************/ /* Clocking *************************************************************************/ /* After power-on reset, the SAMV71Q 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 * */ /* 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 */ /* 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(25) #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 * MC_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 * MC_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 is 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 * To be provided */ #define BOARD_PMC_MCKR_UPLLDIV2 0 /* UPLL clock not divided by 2 */ /* Resulting frequencies */ #define BOARD_MAINOSC_FREQUENCY (12000000) /* MAINOSC: 12MHz crystal on-board */ #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 */ /* HSMCI clocking * * Multimedia Card Interface clock (MCCK or MCI_CK) is Master Clock (MCK) * divided by (2*(CLKDIV+1)). * * MCI_SPEED = MCK / (2*(CLKDIV+1)) * CLKDIV = MCK / MCI_SPEED / 2 - 1 * * Where CLKDIV has a range of 0-255. */ /* 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 ******************************************************************/ /* Button definitions ***************************************************************/ /************************************************************************************ * 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_ledinit, sam_setled, and sam_setleds * * Description: * If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board LEDs. If * CONFIG_ARCH_LEDS is not defined, then the following interfacesare available to * control the LEDs from user applications. * ************************************************************************************/ #ifndef CONFIG_ARCH_LEDS void sam_ledinit(void); void sam_setled(int led, bool ledon); void sam_setleds(uint8_t ledset); #endif /************************************************************************************ * 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. * ************************************************************************************/ #if defined(CONFIG_SAM4EEK_LCD_RGB565) void sam_lcdclear(uint16_t color); #else /* if defined(CONFIG_SAM4EEK_LCD_RGB24) defined(CONFIG_SAM4EEK_LCD_RGB32) */ void sam_lcdclear(uint32_t color); #endif #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __CONFIGS_SAMV71_XULT_INCLUDE_BOARD_H */