/************************************************************************************ * configs/mbed/include/board.h * include/arch/board/board.h * * Copyright (C) 2010 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 __ARCH_BOARD_BOARD_H #define __ARCH_BOARD_BOARD_H /************************************************************************************ * Included Files ************************************************************************************/ #include /************************************************************************************ * Definitions ************************************************************************************/ /* Clocking *************************************************************************/ /* NOTE: The following definitions require lpc17_syscon.h. It is not included here * because the including C file may not have that file in its include path. */ #define BOARD_XTAL_FREQUENCY (12000000) /* XTAL oscillator frequency */ #define BOARD_OSCCLK_FREQUENCY BOARD_XTAL_FREQUENCY /* Main oscillator frequency */ #define BOARD_RTCCLK_FREQUENCY (32000) /* RTC oscillator frequency */ #define BOARD_INTRCOSC_FREQUENCY (4000000) /* Internal RC oscillator frequency */ /* This is the clock setup we configure for: * * SYSCLK = BOARD_OSCCLK_FREQUENCY = 12MHz -> Select Main oscillator for source * PLL0CLK = (2 * 20 * SYSCLK) / 1 = 480MHz -> PLL0 multipler=20, pre-divider=1 * CCLCK = 480MHz / 6 = 80MHz -> CCLK divider = 6 */ #define LPC17_CCLK 80000000 /* 80Mhz*/ /* Select the main oscillator as the frequency source. SYSCLK is then the frequency * of the main oscillator. */ #undef CONFIG_LPC17_MAINOSC #define CONFIG_LPC17_MAINOSC 1 #define BOARD_SCS_VALUE SYSCON_SCS_OSCEN /* Select the main oscillator and CCLK divider. The output of the divider is CCLK. * The input to the divider (PLLCLK) will be determined by the PLL output. */ #define BOARD_CCLKCFG_DIVIDER 6 #define BOARD_CCLKCFG_VALUE ((BOARD_CCLKCFG_DIVIDER-1) << SYSCON_CCLKCFG_SHIFT) /* PLL0. PLL0 is used to generate the CPU clock divider input (PLLCLK). * * Source clock: Main oscillator * PLL0 Multiplier value (M): 20 * PLL0 Pre-divider value (N): 1 * * PLL0CLK = (2 * 20 * SYSCLK) / 1 = 480MHz */ #undef CONFIG_LPC17_PLL0 #define CONFIG_LPC17_PLL0 1 #define BOARD_CLKSRCSEL_VALUE SYSCON_CLKSRCSEL_MAIN #define BOARD_PLL0CFG_MSEL 20 #define BOARD_PLL0CFG_NSEL 1 #define BOARD_PLL0CFG_VALUE \ (((BOARD_PLL0CFG_MSEL-1) << SYSCON_PLL0CFG_MSEL_SHIFT) | \ ((BOARD_PLL0CFG_NSEL-1) << SYSCON_PLL0CFG_NSEL_SHIFT)) /* PLL1 -- Not used. */ #undef CONFIG_LPC17_PLL1 #define BOARD_PLL1CFG_MSEL 36 #define BOARD_PLL1CFG_NSEL 1 #define BOARD_PLL1CFG_VALUE \ (((BOARD_PLL1CFG_MSEL-1) << SYSCON_PLL1CFG_MSEL_SHIFT) | \ ((BOARD_PLL1CFG_NSEL-1) << SYSCON_PLL1CFG_NSEL_SHIFT)) /* USB divider. This divider is used when PLL1 is not enabled to get the * USB clock from PLL0: * * USBCLK = PLL0CLK / 10 = 48MHz */ #define BOARD_USBCLKCFG_VALUE SYSCON_USBCLKCFG_DIV10 /* FLASH Configuration */ #undef CONFIG_LP17_FLASH #define CONFIG_LP17_FLASH 1 #define BOARD_FLASHCFG_VALUE 0x0000303a /* LED definitions ******************************************************************/ /* The MBED has 4 LEDs along the bottom of the board. Blue or off. * If CONFIG_ARCH_LEDS is defined, the LEDs will be controlled as follows for NuttX * debug functionality (where NC means "No Change"). * * During the boot phases. LED1 and LED2 will show boot status. LED3/4 Not used. */ /* LED1 LED2 */ #define LED_STARTED 0 /* OFF OFF */ #define LED_HEAPALLOCATE 1 /* BLUE OFF */ #define LED_IRQSENABLED 2 /* OFF BLUE */ #define LED_STACKCREATED 3 /* OFF OFF */ /* After the system is booted, this logic will no longer use LEDs 1 & 2. They * are available together with LED3 for use the application software using * lpc17_led (prototyped below) */ /* LED1 LED2 LED3 LED4 */ #define LED_INIRQ 4 /* NC NC NC ON (momentary) */ #define LED_SIGNAL 5 /* NC NC NC ON (momentary) */ #define LED_ASSERTION 6 /* NC NC NC ON (momentary) */ #define LED_PANIC 7 /* NC NC NC ON (1Hz flashing) */ #define GPIO_SSP0_SCK GPIO_SSP0_SCK_1 #define GPIO_SSP0_SSEL GPIO_SSP0_SSEL_1 #define GPIO_SSP0_MISO GPIO_SSP0_MISO_1 #define GPIO_SSP0_MOSI GPIO_SSP0_MOSI_1 /* We need to redefine USB_PWRD as GPIO to get USB Host working * Also remember to add 2 resistors of 15K to D+ and D- pins. */ #ifdef CONFIG_USBHOST # ifdef GPIO_USB_PWRD # undef GPIO_USB_PWRD # define GPIO_USB_PWRD (GPIO_INPUT | GPIO_PORT1 | GPIO_PIN22) # endif #endif /************************************************************************************ * Public Types ************************************************************************************/ #ifndef __ASSEMBLY__ /************************************************************************************ * Public Data ************************************************************************************/ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /************************************************************************************ * Public Function Prototypes ************************************************************************************/ /************************************************************************************ * Name: lpc17_boardinitialize * * Description: * All LPC17xx 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. * ************************************************************************************/ EXTERN void lpc17_boardinitialize(void); /************************************************************************************ * Name: lpc17_led * * Description: * Once the system has booted, these functions can be used to control LEDs 1, 2 & 3 * ************************************************************************************/ #ifdef CONFIG_ARCH_LEDS EXTERN void lpc17_led(int lednum, int state); #endif #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __ARCH_BOARD_BOARD_H */