forked from Archive/PX4-Autopilot
218 lines
8.3 KiB
C
218 lines
8.3 KiB
C
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/************************************************************************************
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* configs/mbed/include/board.h
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* include/arch/board/board.h
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*
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* Copyright (C) 2010 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_BOARD_BOARD_H
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#define __ARCH_BOARD_BOARD_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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/************************************************************************************
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* Definitions
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************************************************************************************/
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/* Clocking *************************************************************************/
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/* NOTE: The following definitions require lpc17_syscon.h. It is not included here
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* because the including C file may not have that file in its include path.
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*/
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#define BOARD_XTAL_FREQUENCY (12000000) /* XTAL oscillator frequency */
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#define BOARD_OSCCLK_FREQUENCY BOARD_XTAL_FREQUENCY /* Main oscillator frequency */
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#define BOARD_RTCCLK_FREQUENCY (32000) /* RTC oscillator frequency */
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#define BOARD_INTRCOSC_FREQUENCY (4000000) /* Internal RC oscillator frequency */
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/* This is the clock setup we configure for:
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*
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* SYSCLK = BOARD_OSCCLK_FREQUENCY = 12MHz -> Select Main oscillator for source
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* PLL0CLK = (2 * 20 * SYSCLK) / 1 = 480MHz -> PLL0 multipler=20, pre-divider=1
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* CCLCK = 480MHz / 6 = 80MHz -> CCLK divider = 6
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*/
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#define LPC17_CCLK 80000000 /* 80Mhz*/
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/* Select the main oscillator as the frequency source. SYSCLK is then the frequency
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* of the main oscillator.
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*/
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#undef CONFIG_LPC17_MAINOSC
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#define CONFIG_LPC17_MAINOSC 1
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#define BOARD_SCS_VALUE SYSCON_SCS_OSCEN
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/* Select the main oscillator and CCLK divider. The output of the divider is CCLK.
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* The input to the divider (PLLCLK) will be determined by the PLL output.
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*/
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#define BOARD_CCLKCFG_DIVIDER 6
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#define BOARD_CCLKCFG_VALUE ((BOARD_CCLKCFG_DIVIDER-1) << SYSCON_CCLKCFG_SHIFT)
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/* PLL0. PLL0 is used to generate the CPU clock divider input (PLLCLK).
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*
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* Source clock: Main oscillator
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* PLL0 Multiplier value (M): 20
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* PLL0 Pre-divider value (N): 1
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*
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* PLL0CLK = (2 * 20 * SYSCLK) / 1 = 480MHz
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*/
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#undef CONFIG_LPC17_PLL0
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#define CONFIG_LPC17_PLL0 1
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#define BOARD_CLKSRCSEL_VALUE SYSCON_CLKSRCSEL_MAIN
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#define BOARD_PLL0CFG_MSEL 20
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#define BOARD_PLL0CFG_NSEL 1
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#define BOARD_PLL0CFG_VALUE \
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(((BOARD_PLL0CFG_MSEL-1) << SYSCON_PLL0CFG_MSEL_SHIFT) | \
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((BOARD_PLL0CFG_NSEL-1) << SYSCON_PLL0CFG_NSEL_SHIFT))
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/* PLL1 -- Not used. */
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#undef CONFIG_LPC17_PLL1
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#define BOARD_PLL1CFG_MSEL 36
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#define BOARD_PLL1CFG_NSEL 1
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#define BOARD_PLL1CFG_VALUE \
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(((BOARD_PLL1CFG_MSEL-1) << SYSCON_PLL1CFG_MSEL_SHIFT) | \
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((BOARD_PLL1CFG_NSEL-1) << SYSCON_PLL1CFG_NSEL_SHIFT))
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/* USB divider. This divider is used when PLL1 is not enabled to get the
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* USB clock from PLL0:
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*
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* USBCLK = PLL0CLK / 10 = 48MHz
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*/
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#define BOARD_USBCLKCFG_VALUE SYSCON_USBCLKCFG_DIV10
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/* FLASH Configuration */
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#undef CONFIG_LP17_FLASH
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#define CONFIG_LP17_FLASH 1
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#define BOARD_FLASHCFG_VALUE 0x0000303a
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/* LED definitions ******************************************************************/
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/* The MBED has 4 LEDs along the bottom of the board. Blue or off.
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* If CONFIG_ARCH_LEDS is defined, the LEDs will be controlled as follows for NuttX
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* debug functionality (where NC means "No Change").
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*
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* During the boot phases. LED1 and LED2 will show boot status. LED3/4 Not used.
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*/
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/* LED1 LED2 */
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#define LED_STARTED 0 /* OFF OFF */
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#define LED_HEAPALLOCATE 1 /* BLUE OFF */
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#define LED_IRQSENABLED 2 /* OFF BLUE */
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#define LED_STACKCREATED 3 /* OFF OFF */
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/* After the system is booted, this logic will no longer use LEDs 1 & 2. They
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* are available together with LED3 for use the application software using
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* lpc17_led (prototyped below)
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*/
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/* LED1 LED2 LED3 LED4 */
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#define LED_INIRQ 4 /* NC NC NC ON (momentary) */
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#define LED_SIGNAL 5 /* NC NC NC ON (momentary) */
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#define LED_ASSERTION 6 /* NC NC NC ON (momentary) */
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#define LED_PANIC 7 /* NC NC NC ON (1Hz flashing) */
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#define GPIO_SSP0_SCK GPIO_SSP0_SCK_1
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#define GPIO_SSP0_SSEL GPIO_SSP0_SSEL_1
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#define GPIO_SSP0_MISO GPIO_SSP0_MISO_1
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#define GPIO_SSP0_MOSI GPIO_SSP0_MOSI_1
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/* We need to redefine USB_PWRD as GPIO to get USB Host working
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* Also remember to add 2 resistors of 15K to D+ and D- pins.
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*/
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#ifdef CONFIG_USBHOST
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# ifdef GPIO_USB_PWRD
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# undef GPIO_USB_PWRD
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# define GPIO_USB_PWRD (GPIO_INPUT | GPIO_PORT1 | GPIO_PIN22)
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# endif
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#endif
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/************************************************************************************
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* Public Types
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************************************************************************************/
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#ifndef __ASSEMBLY__
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/************************************************************************************
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* Public Data
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************************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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/************************************************************************************
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* Public Function Prototypes
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************************************************************************************/
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/************************************************************************************
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* Name: lpc17_boardinitialize
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*
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* Description:
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* All LPC17xx architectures must provide the following entry point. This entry point
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* is called early in the intitialization -- after all memory has been configured
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* and mapped but before any devices have been initialized.
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*
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************************************************************************************/
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EXTERN void lpc17_boardinitialize(void);
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/************************************************************************************
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* Name: lpc17_led
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*
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* Description:
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* Once the system has booted, these functions can be used to control LEDs 1, 2 & 3
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*
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************************************************************************************/
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#ifdef CONFIG_ARCH_LEDS
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EXTERN void lpc17_led(int lednum, int state);
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_BOARD_BOARD_H */
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