You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
217 lines
8.3 KiB
217 lines
8.3 KiB
/************************************************************************************ |
|
* configs/mbed/include/board.h |
|
* include/arch/board/board.h |
|
* |
|
* Copyright (C) 2010 Gregory Nutt. All rights reserved. |
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr> |
|
* |
|
* 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 <nuttx/config.h> |
|
|
|
/************************************************************************************ |
|
* 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 */
|
|
|