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nuttx/configs/avr32dev1/include/board.h
patacongo ed36c6caff It took me a long time to figure out that the board has no 32KHz crystal 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3069 42af7a65-404d-4744-a932-0658087f49c3
2010-11-02 03:30:11 +00:00

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/************************************************************************************
* configs/avr32dev1/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>
#include <stdint.h>
#include <nuttx/irq.h>
/************************************************************************************
* Definitions
************************************************************************************/
/* Clocking *************************************************************************/
/* Oscillator setup: RCOSC, OSC32, OSC0, OSC1. Only RCOSC, OSC0, or PLL0 can drive
* the main clock.
*/
/* The RCOSC frequency needs to be calibrated! */
#define AVR32_FRCOSC 115000 /* RCOSC frequency in Hz. 115KHz nominal */
#define AVR32_FOSC32 32768 /* OSC32 frequency in Hz */
#define AVR32_OSC32STARTUP 3 /* OSC32 startup time in RCOSC periods */
#define AVR32_FOSC0 12000000 /* OSC0 frequency in Hz */
#define AVR32_OSC0STARTUP 3 /* OSC0 startup time in RCOSC periods.
/* #define AVR32_FOSC1 12000000 OSC1 frequency: Hz.
* #define AVR32_OSC1STARTUP 3 OSC1 startup time in RCOSC periods.
*/
/* PLL setup
*
* FOSC0 MUL DIV PLL DIV2_EN CPU_CLOCK PBA_CLOCK COMMENT
* (MHz) (MHz) (MHz) (MHz)
* 12 15 1 192 1 12 12
* 12 9 3 40 1 20 20 PLL out of spec
* 12 15 1 192 1 24 12
* 12 9 1 120 1 30 15
* 12 9 3 40 0 40 20 PLL out of spec
* 12 15 1 192 1 48 12
* 12 15 1 192 1 48 24
* 12 8 1 108 1 54 27
* 12 9 1 120 1 60 15
* 12 9 1 120 1 60 30
* 12 10 1 132 1 66 16.5
*/
#define AVR32_CLOCK_PLL0_OSC0 1
#undef AVR32_CLOCK_PLL0_OSC1
#define AVR32_PLL0_MUL 15
#define AVR32_PLL0_DIV 1
#define AVR32_PLL0_DIV2 1
#define AVR32_PLL0_WBWM 0
#define AVR32_PLL0_FREQ 192000000
/* Set PLL1 @ 96 MHz from OSC0: 12MHz*(7+1)/1 = 96MHz */
#define AVR32_CLOCK_PLL1_OSC0 1
#undef AVR32_CLOCK_PLL1_OSC1
#define AVR32_PLL1_MUL 7
#define AVR32_PLL1_DIV 1
#define AVR32_PLL1_DIV2 1
#define AVR32_PLL1_WBWM 0
#define AVR32_PLL1_FREQ 96000000
/* Clock divider setup */
#define AVR32_CKSEL_CPUDIV 0
#define AVR32_CKSEL_HSBDIV 0
#define AVR32_CKSEL_PBADIV 0
#define AVR32_CKSEL_PBBDIV 0
/* GCLK_USBB */
#undef AVR32_CLOCK_USB_PLL0
#define AVR32_CLOCK_USB_PLL1 1
#undef AVR32_CLOCK_USB_OSC0
#undef AVR32_CLOCK_USB_OSC1
#define AVR32_CLOCK_USB_DIV 0
/* Main Clock settup: Select OSC0 as the main clock.
*
* - A 12Mhz crystal is provided on he board for OSC0.
* - The AVR32DEV1 board has no support for OSC1.
* - There are pads for he 32Khz OSC32, but it is not populated on the
* board.
*/
#define AVR32_CLOCK_OSC0 1
#undef AVR32_CLOCK_OSC1 /* Not supported */
#undef AVR32_CLOCK_OSC32 /* Not populated */
#undef AVR32_CLOCK_PLL0
#undef AVR32_CLOCK_PLL1
#define AVR32_CPU_CLOCK AVR32_FOSC0
#define AVR32_PBA_CLOCK AVR32_FOSC0
/* Pin muliplexing selecion *********************************************************/
#define PINMUX_USART1_RXD PINMUX_USART1_RXD_1
#define PINMUX_USART1_TXD PINMUX_USART1_TXD_1
/* LED definitions ******************************************************************/
/* The AVR32DEV1 board has 3 LEDs, two of which can be controlled through GPIO pins */
/* ON OFF */
/* LED1 LED2 LED1 LED2 */
#define LED_STARTED 0 /* OFF OFF OFF OFF */
#define LED_HEAPALLOCATE 0 /* OFF OFF OFF OFF */
#define LED_IRQSENABLED 0 /* OFF OFF OFF OFF */
#define LED_STACKCREATED 1 /* ON OFF OFF OFF */
#define LED_INIRQ 2 /* ON ON ON OFF */
#define LED_SIGNAL 2 /* ON ON ON OFF */
#define LED_ASSERTION 2 /* ON ON ON OFF */
#define LED_PANIC 2 /* ON ON ON OFF */
/* Button definitions ***************************************************************/
/* The AVR32DEV1 board has 3 BUTTONs, two of which can be sensed through GPIO pins. */
#define BUTTON1 1 /* Bit 0: Button 1 */
#define BUTTON2 2 /* Bit 1: Button 2 */
/************************************************************************************
* 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: avr32_boardinitialize
*
* Description:
* All AVR32 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 avr32_boardinitialize(void);
/************************************************************************************
* Name: up_buttoninit
*
* Description:
* up_buttoninit() must be called to initialize button resources. After that,
* up_buttons() may be called to collect the state of all buttons. up_buttons()
* returns an 8-bit bit set with each bit associated with a button. See the
* BUTTON* definitions above for the meaning of each bit in the returned value.
*
* NOTE: Nothing in the "base" NuttX code calls up_buttoninit(). If you want button
* support in an application, your application startup code must call up_buttoninit()
* prior to calling any of the other button interfaces.
*
************************************************************************************/
#ifdef CONFIG_ARCH_BUTTONS
EXTERN void up_buttoninit(void);
/************************************************************************************
* Name: up_buttons
*
* Description:
* After up_buttoninit() has been called, up_buttons() may be called to collect
* the state of all buttons. up_buttons() returns an 8-bit bit set with each bit
* associated with a button. See the BUTTON* definitions above for the meaning of
* each bit in the returned value.
*
************************************************************************************/
EXTERN uint8_t up_buttons(void);
/************************************************************************************
* Name: up_irqbutton1/2
*
* Description:
* These functions may be called to register an interrupt handler that will be
* called when BUTTON1/2 is depressed. The previous interrupt handler value is
* returned (so that it may restored, if so desired).
*
* Configuration Notes:
* Configuration CONFIG_AVR32_GPIOIRQ must be selected to enable the overall GPIO
* IRQ feature and CONFIG_AVR32_GPIOIRQSETA and/or CONFIG_AVR32_GPIOIRQSETB must
* be enabled to select GPIOs to support interrupts on. For button support, bits
* 2 and 3 must be set in CONFIG_AVR32_GPIOIRQSETB (PB2 and PB3).
*
************************************************************************************/
#ifdef CONFIG_AVR32_GPIOIRQ
EXTERN xcpt_t up_irqbutton1(xcpt_t irqhandler);
EXTERN xcpt_t up_irqbutton2(xcpt_t irqhandler);
#endif
#endif /* CONFIG_ARCH_BUTTONS */
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_BOARD_BOARD_H */
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