/************************************************************************************ * configs/sam4s-xplained/include/board.h * * Copyright (C) 2013 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_SAM4L_XPLAINED_INCLUDE_BOARD_H #define __CONFIGS_SAM4L_XPLAINED_INCLUDE_BOARD_H /************************************************************************************ * Included Files ************************************************************************************/ #include #ifndef __ASSEMBLY__ # include # ifdef CONFIG_SAM34_GPIO_IRQ # include # endif #endif /************************************************************************************ * Pre-processor Definitions ************************************************************************************/ /* Clocking *************************************************************************/ /* After power-on reset, the sam3u device is running on a 4MHz internal RC. These * definitions will configure clocking with MCK = 48MHz, PLLA = 96, and CPU=120MHz. */ /* Main oscillator register settings */ #define BOARD_CKGR_MOR_MOSCXTST (63 << PMC_CKGR_MOR_MOSCXTST_SHIFT) /* Start-up Time */ /* PLLA configuration: * * Source: 12MHz crystall at 12MHz * PLLdiv: 10 * PLLmul: 1 (bypassed) * Fpll: (12MHz * 10) / 1 = 120MHz */ #define BOARD_MAINOSC_FREQUENCY (12000000) #define BOARD_CKGR_PLLAR_MUL (9 << PMC_CKGR_PLLAR_MUL_SHIFT) #define BOARD_CKGR_PLLAR_DIV PMC_CKGR_PLLAR_DIV_BYPASS #define BOARD_CKGR_PLLAR_COUNT (63 << PMC_CKGR_PLLAR_COUNT_SHIFT) #define BOARD_PLLA_FREQUENCY (10*BOARD_MAINOSC_FREQUENCY) /* PMC master clock register settings */ #define BOARD_PMC_MCKR_CSS PMC_MCKR_CSS_PLLA #define BOARD_PMC_MCKR_PRES PMC_MCKR_PRES_DIV1 #define BOARD_MCK_FREQUENCY (BOARD_PLLA_FREQUENCY/1) #define BOARD_CPU_FREQUENCY (BOARD_PLLA_FREQUENCY/1) /* USB UTMI PLL start-up time */ #define BOARD_CKGR_UCKR_UPLLCOUNT (3 << PMC_CKGR_UCKR_UPLLCOUNT_SHIFT) /* 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 = MCI / MCI_SPEED / 2 - 1 */ /* MCK = 48MHz, CLKDIV = 59, MCI_SPEED = 48MHz / 2 * (59+1) = 400 KHz */ #define HSMCI_INIT_CLKDIV (59 << HSMCI_MR_CLKDIV_SHIFT) /* MCK = 48MHz, CLKDIV = 1, MCI_SPEED = 48MHz / 2 * (1+1) = 12 MHz */ #define HSMCI_MMCXFR_CLKDIV (1 << HSMCI_MR_CLKDIV_SHIFT) /* MCK = 48MHz, CLKDIV = 0, MCI_SPEED = 48MHz / 2 * (0+1) = 24 MHz */ #define HSMCI_SDXFR_CLKDIV (0 << HSMCI_MR_CLKDIV_SHIFT) #define HSMCI_SDWIDEXFR_CLKDIV HSMCI_SDXFR_CLKDIV /* FLASH wait states: * * DC Characteristics * * Parameter Min Typ Max * ---------------------- ----- ----- ---- * Vddcore DC Supply Core 1.08V 1.2V 1.32V * Vvddio DC Supply I/Os 1.62V 3.3V 3.6V * * Wait Maximum * Vddcore Vvddio States Frequency (MHz) * ------- ---------- ------ --------------- * 1.08V 1.62-3.6V 0 16 * " " " "-" " 1 33 * " " " "-" " 2 50 * " " " "-" " 3 67 * " " " "-" " 4 84 * " " " "-" " 5 100 * 1.08V 2.7-3.6V 0 20 * " " " "-" " 1 40 * " " " "-" " 2 60 * " " " "-" " 3 80 * " " " "-" " 4 100 * 1.2V 1.62-3.6V 0 17 * " " " "-" " 1 34 * " " " "-" " 2 52 * " " " "-" " 3 69 * " " " "-" " 4 87 * " " " "-" " 5 104 * " " " "-" " 6 121 * 1.2V 2.7-3.6V 0 21 * " " " "-" " 1 42 * " " " "-" " 2 63 * " " " "-" " 3 84 * " " " "-" " 4 105 * " " " "-" " 5 123 << SELECTION */ #define BOARD_FWS 5 /* LED definitions ******************************************************************/ /* There are four LEDs on board the SAM4S Xplained board, two of these can be * controlled by software in the SAM4S: * * LED GPIO * ---------------- ----- * D9 Yellow LED PC10 * D10 Yellow LED PC17 * * Both can be illuminated by driving the GPIO output to ground (low). */ /* LED index values for use with board_userled() */ #define BOARD_D9 0 #define BOARD_D10 1 #define BOARD_NLEDS 2 /* LED bits for use with board_userled_all() */ #define BOARD_D9_BIT (1 << BOARD_D9) #define BOARD_D10_BIT (1 << BOARD_D10) /* 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/up_leds.c. The LEDs are used to encode OS-related * events as follows: * * SYMBOL Val Meaning LED state * D9 D10 * ----------------------- --- ----------------------- -------- -------- */ #define LED_STARTED 0 /* NuttX has been started OFF OFF */ #define LED_HEAPALLOCATE 0 /* Heap has been allocated OFF OFF */ #define LED_IRQSENABLED 0 /* Interrupts enabled OFF OFF */ #define LED_STACKCREATED 0 /* Idle stack created ON OFF */ #define LED_INIRQ 0 /* In an interrupt No change */ #define LED_SIGNAL 0 /* In a signal handler No change */ #define LED_ASSERTION 0 /* An assertion failed No change */ #define LED_PANIC 0 /* The system has crashed OFF Blinking */ #define LED_IDLE 0 /* MCU is is sleep mode Not used */ /* Thus if D9 is statically on, NuttX has successfully booted and is, * apparently, running normmally. If D10 is flashing at approximately * 2Hz, then a fatal error has been detected and the system has halted. */ /* Button definitions ***************************************************************/ /* Mechanical buttons: * * The SAM4S Xplained has two mechanical buttons. One button is the RESET button * connected to the SAM4S reset line and the other is a generic user configurable * button labeled BP2. When a button is pressed it will drive the I/O line to GND. * * PA5 BP2 */ #define BUTTON_BP2 0 #define NUM_BUTTONS 1 #define BUTTON_BP2_BIT (1 << BUTTON_BP2) /************************************************************************************ * Public Data ************************************************************************************/ #ifndef __ASSEMBLY__ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /************************************************************************************ * Public Function Prototypes ************************************************************************************/ /************************************************************************************ * Name: sam_boardinitialize * * Description: * All SAM3U architectures must provide the following entry point. This entry point * is called early in the intitialization -- after all memory has been configured * and mapped but before any devices have been initialized. * ************************************************************************************/ void sam_boardinitialize(void); #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __CONFIGS_SAM4L_XPLAINED_INCLUDE_BOARD_H */