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Deleted folder minimal

This commit is contained in:
Christina Quast 2015-04-07 18:24:36 +02:00
parent 5a67c0fef3
commit d3f1638f1b
14 changed files with 0 additions and 10732 deletions
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7
minimal/Makefile
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default:
arm-none-eabi-gcc -c -mcpu=cortex-m3 -mthumb -g test.c -o test.o
arm-none-eabi-ld -T test.ld test.o startup.o pio.o pmc.o -o test.elf
arm-none-eabi-as -mcpu=cortex-m3 -g startup.s -o startup.o
arm-none-eabi-objcopy -O binary test.elf test.bin

7735
minimal/include/SAM3S.h
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minimal/include/board.h
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#ifndef _BOARD_
#define _BOARD_
#include "chip.h"
#include "syscalls.h" /** RedHat Newlib minimal stub */
/** Name of the board */
#define BOARD_NAME "SAM3S-EK"
/** Board definition */
#define sam3sek
/** Family definition (already defined) */
#define sam3s
/** Core definition */
#define cortexm3
#define BOARD_MAINOSC 12000000
#define BOARD_MCK 48000000
//#define LED_STATUS PIO_PA8
#define LED_STATUS PIO_PA17
#define LED_STATUS2 PIO_PA18
#endif

42
minimal/include/chip.h
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#ifndef _LIB_SAM3S_
#define _LIB_SAM3S_
/*
* Peripherals registers definitions
*/
#if defined sam3s4
#elif defined sam3s2
#elif defined sam3s1
#else
#warning Library does not support the specified chip, specifying sam3s4.
#define sam3s4
#endif
#include "SAM3S.h"
/* Define attribute */
#if defined ( __CC_ARM ) /* Keil µVision 4 */
#define WEAK __attribute__ ((weak))
#elif defined ( __ICCARM__ ) /* IAR Ewarm 5.41+ */
#define WEAK __weak
#elif defined ( __GNUC__ ) /* GCC CS3 2009q3-68 */
#define WEAK __attribute__ ((weak))
#endif
/* Define NO_INIT attribute */
#if defined ( __CC_ARM )
#define NO_INIT
#elif defined ( __ICCARM__ )
#define NO_INIT __no_init
#elif defined ( __GNUC__ )
#define NO_INIT
#endif
/*
* Core
*/
#include "exceptions.h"
#endif

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minimal/include/core_cm3.h
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minimal/include/exceptions.h
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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2009, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
* ----------------------------------------------------------------------------
*/
/**
* \file
* Interface for default exception handlers.
*/
#ifndef _EXCEPTIONS_
#define _EXCEPTIONS_
/*----------------------------------------------------------------------------
* Types
*----------------------------------------------------------------------------*/
/* Function prototype for exception table items (interrupt handler). */
typedef void( *IntFunc )( void ) ;
/*----------------------------------------------------------------------------
* Exported functions
*----------------------------------------------------------------------------*/
/* Default empty handler */
extern void IrqHandlerNotUsed( void ) ;
/* Cortex-M3 core handlers */
extern void NMI_Handler( void );
extern void HardFault_Handler( void );
extern void MemManage_Handler( void );
extern void BusFault_Handler( void );
extern void UsageFault_Handler( void );
extern void SVC_Handler( void );
extern void DebugMon_Handler( void );
extern void PendSV_Handler( void );
extern void SysTick_Handler( void );
/* Peripherals handlers */
extern void ACC_IrqHandler( void ) ;
extern void ADC_IrqHandler( void ) ;
extern void CRCCU_IrqHandler( void ) ;
extern void DAC_IrqHandler( void ) ;
extern void EEFC_IrqHandler( void ) ;
extern void MCI_IrqHandler( void ) ;
extern void PIOA_IrqHandler( void ) ;
extern void PIOB_IrqHandler( void ) ;
extern void PIOC_IrqHandler( void ) ;
extern void PMC_IrqHandler( void ) ;
extern void PWM_IrqHandler( void ) ;
extern void RSTC_IrqHandler( void ) ;
extern void RTC_IrqHandler( void ) ;
extern void RTT_IrqHandler( void ) ;
extern void SMC_IrqHandler( void ) ;
extern void SPI_IrqHandler( void ) ;
extern void SSC_IrqHandler( void ) ;
extern void SUPC_IrqHandler( void ) ;
extern void TC0_IrqHandler( void ) ;
extern void TC1_IrqHandler( void ) ;
extern void TC2_IrqHandler( void ) ;
extern void TC3_IrqHandler( void ) ;
extern void TC4_IrqHandler( void ) ;
extern void TC5_IrqHandler( void ) ;
extern void TWI0_IrqHandler( void ) ;
extern void TWI1_IrqHandler( void ) ;
extern void UART0_IrqHandler( void ) ;
extern void UART1_IrqHandler( void ) ;
extern void USART0_IrqHandler( void ) ;
extern void USART1_IrqHandler( void ) ;
extern void USBD_IrqHandler(void);
extern void WDT_IrqHandler( void ) ;
#endif /* _EXCEPTIONS_ */

206
minimal/include/pio.h
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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2010, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
* ----------------------------------------------------------------------------
*/
/**
* \file
*
* \section Purpose
*
* This file provides a basic API for PIO configuration and usage of
* user-controlled pins. Please refer to the board.h file for a list of
* available pin definitions.
*
* \section Usage
*
* -# Define a constant pin description array such as the following one, using
* the existing definitions provided by the board.h file if possible:
* \code
* const Pin pPins[] = {PIN_USART0_TXD, PIN_USART0_RXD};
* \endcode
* Alternatively, it is possible to add new pins by provided the full Pin
* structure:
* \code
* // Pin instance to configure PA10 & PA11 as inputs with the internal
* // pull-up enabled.
* const Pin pPins = {
* (1 << 10) | (1 << 11),
* REG_PIOA,
* ID_PIOA,
* PIO_INPUT,
* PIO_PULLUP
* };
* \endcode
* -# Configure a pin array by calling PIO_Configure() with a pointer to the
* array and its size (which is computed using the PIO_LISTSIZE macro).
* -# Change and get the value of a user-controlled pin using the PIO_Set,
* PIO_Clear and PIO_Get methods.
* -# Get the level being currently output by a user-controlled pin configured
* as an output using PIO_GetOutputDataStatus().
*/
#ifndef _PIO_
#define _PIO_
/*
* Headers
*/
#include "chip.h"
#include <stdint.h>
/*
* Global Definitions
*/
/* The pin is controlled by the associated signal of peripheral A. */
#define PIO_PERIPH_A 0
/* The pin is controlled by the associated signal of peripheral B. */
#define PIO_PERIPH_B 1
/* The pin is controlled by the associated signal of peripheral C. */
#define PIO_PERIPH_C 2
/* The pin is controlled by the associated signal of peripheral D. */
#define PIO_PERIPH_D 3
/* The pin is an input. */
#define PIO_INPUT 4
/* The pin is an output and has a default level of 0. */
#define PIO_OUTPUT_0 5
/* The pin is an output and has a default level of 1. */
#define PIO_OUTPUT_1 6
/* Default pin configuration (no attribute). */
#define PIO_DEFAULT (0 << 0)
/* The internal pin pull-up is active. */
#define PIO_PULLUP (1 << 0)
/* The internal glitch filter is active. */
#define PIO_DEGLITCH (1 << 1)
/* The pin is open-drain. */
#define PIO_OPENDRAIN (1 << 2)
/* The internal debouncing filter is active. */
#define PIO_DEBOUNCE (1 << 3)
/* Enable additional interrupt modes. */
#define PIO_IT_AIME (1 << 4)
/* Interrupt High Level/Rising Edge detection is active. */
#define PIO_IT_RE_OR_HL (1 << 5)
/* Interrupt Edge detection is active. */
#define PIO_IT_EDGE (1 << 6)
/* Low level interrupt is active */
#define PIO_IT_LOW_LEVEL (0 | 0 | PIO_IT_AIME)
/* High level interrupt is active */
#define PIO_IT_HIGH_LEVEL (PIO_IT_RE_OR_HL | 0 | PIO_IT_AIME)
/* Falling edge interrupt is active */
#define PIO_IT_FALL_EDGE (0 | PIO_IT_EDGE | PIO_IT_AIME)
/* Rising edge interrupt is active */
#define PIO_IT_RISE_EDGE (PIO_IT_RE_OR_HL | PIO_IT_EDGE | PIO_IT_AIME)
#ifdef __cplusplus
extern "C" {
#endif
/*
* Global Macros
*/
/**
* Calculates the size of an array of Pin instances. The array must be defined
* locally (i.e. not a pointer), otherwise the computation will not be correct.
* \param pPins Local array of Pin instances.
* \return Number of elements in array.
*/
#define PIO_LISTSIZE(pPins) (sizeof(pPins) / sizeof(Pin))
/*
* Global Types
*/
/*
* Describes the type and attribute of one PIO pin or a group of similar pins.
* The #type# field can have the following values:
* - PIO_PERIPH_A
* - PIO_PERIPH_B
* - PIO_OUTPUT_0
* - PIO_OUTPUT_1
* - PIO_INPUT
*
* The #attribute# field is a bitmask that can either be set to PIO_DEFAULt,
* or combine (using bitwise OR '|') any number of the following constants:
* - PIO_PULLUP
* - PIO_DEGLITCH
* - PIO_DEBOUNCE
* - PIO_OPENDRAIN
* - PIO_IT_LOW_LEVEL
* - PIO_IT_HIGH_LEVEL
* - PIO_IT_FALL_EDGE
* - PIO_IT_RISE_EDGE
*/
typedef struct _Pin
{
/* Bitmask indicating which pin(s) to configure. */
uint32_t mask;
/* Pointer to the PIO controller which has the pin(s). */
Pio *pio;
/* Peripheral ID of the PIO controller which has the pin(s). */
uint8_t id;
/* Pin type. */
uint8_t type;
/* Pin attribute. */
uint8_t attribute;
} Pin ;
/*
* Global Access Macros
*/
/*
* Global Functions
*/
extern uint8_t PIO_Configure( const Pin *list, uint32_t size ) ;
extern void PIO_Set( const Pin *pin ) ;
extern void PIO_Clear( const Pin *pin ) ;
extern uint8_t PIO_Get( const Pin *pin ) ;
extern uint8_t PIO_GetOutputDataStatus( const Pin *pin ) ;
extern void PIO_SetDebounceFilter( const Pin *pin, uint32_t cuttoff );
#ifdef __cplusplus
}
#endif
#endif /* #ifndef _PIO_ */

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minimal/include/pmc.h
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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2009, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL 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 _PMC_
#define _PMC_
/*----------------------------------------------------------------------------
* Headers
*----------------------------------------------------------------------------*/
#include <stdint.h>
/*----------------------------------------------------------------------------
* Exported functions
*----------------------------------------------------------------------------*/
#ifdef __cplusplus
extern "C" {
#endif
extern void PMC_EnablePeripheral( uint32_t dwId ) ;
extern void PMC_DisablePeripheral( uint32_t dwId ) ;
extern void PMC_EnableAllPeripherals( void ) ;
extern void PMC_DisableAllPeripherals( void ) ;
extern uint32_t PMC_IsPeriphEnabled( uint32_t dwId ) ;
#ifdef __cplusplus
}
#endif
#endif /* #ifndef _PMC_ */

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minimal/include/syscalls.h
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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2009, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
* ----------------------------------------------------------------------------
*/
/**
* \file syscalls.h
*
* Implementation of newlib syscall.
*
*/
/*----------------------------------------------------------------------------
* Headers
*----------------------------------------------------------------------------*/
#include <stdio.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/stat.h>
/*----------------------------------------------------------------------------
* Exported functions
*----------------------------------------------------------------------------*/
extern caddr_t _sbrk ( int incr ) ;
extern int link( char *old, char *new ) ;
extern int _close( int file ) ;
extern int _fstat( int file, struct stat *st ) ;
extern int _isatty( int file ) ;
extern int _lseek( int file, int ptr, int dir ) ;
extern int _read(int file, char *ptr, int len) ;
extern int _write( int file, char *ptr, int len ) ;

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minimal/pio.c
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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2010, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
* ----------------------------------------------------------------------------
*/
/** \file */
/*----------------------------------------------------------------------------
* Headers
*----------------------------------------------------------------------------*/
#include "include/chip.h"
#include "include/pio.h"
#include "include/pmc.h"
/*----------------------------------------------------------------------------
* Local functions
*----------------------------------------------------------------------------*/
/**
* \brief Configures one or more pin(s) of a PIO controller as being controlled by
* peripheral A. Optionally, the corresponding internal pull-up(s) can be enabled.
*
* \param pio Pointer to a PIO controller.
* \param mask Bitmask of one or more pin(s) to configure.
* \param enablePullUp Indicates if the pin(s) internal pull-up shall be
* configured.
*/
static void PIO_SetPeripheralA(
Pio *pio,
unsigned int mask,
unsigned char enablePullUp)
{
unsigned int abcdsr;
/* Disable interrupts on the pin(s) */
pio->PIO_IDR = mask;
/* Enable the pull-up(s) if necessary */
if (enablePullUp) {
pio->PIO_PUER = mask;
}
else {
pio->PIO_PUDR = mask;
}
abcdsr = pio->PIO_ABCDSR[0];
pio->PIO_ABCDSR[0] &= (~mask & abcdsr);
abcdsr = pio->PIO_ABCDSR[1];
pio->PIO_ABCDSR[1] &= (~mask & abcdsr);
pio->PIO_PDR = mask;
}
/**
* \brief Configures one or more pin(s) of a PIO controller as being controlled by
* peripheral B. Optionally, the corresponding internal pull-up(s) can be enabled.
*
* \param pio Pointer to a PIO controller.
* \param mask Bitmask of one or more pin(s) to configure.
* \param enablePullUp Indicates if the pin(s) internal pull-up shall be
* configured.
*/
static void PIO_SetPeripheralB(
Pio *pio,
unsigned int mask,
unsigned char enablePullUp)
{
unsigned int abcdsr;
/* Disable interrupts on the pin(s) */
pio->PIO_IDR = mask;
/* Enable the pull-up(s) if necessary */
if (enablePullUp) {
pio->PIO_PUER = mask;
}
else {
pio->PIO_PUDR = mask;
}
abcdsr = pio->PIO_ABCDSR[0];
pio->PIO_ABCDSR[0] = (mask | abcdsr);
abcdsr = pio->PIO_ABCDSR[1];
pio->PIO_ABCDSR[1] &= (~mask & abcdsr);
pio->PIO_PDR = mask;
}
/**
* \brief Configures one or more pin(s) of a PIO controller as being controlled by
* peripheral C. Optionally, the corresponding internal pull-up(s) can be enabled.
*
* \param pio Pointer to a PIO controller.
* \param mask Bitmask of one or more pin(s) to configure.
* \param enablePullUp Indicates if the pin(s) internal pull-up shall be
* configured.
*/
static void PIO_SetPeripheralC(
Pio *pio,
unsigned int mask,
unsigned char enablePullUp)
{
unsigned int abcdsr;
/* Disable interrupts on the pin(s) */
pio->PIO_IDR = mask;
/* Enable the pull-up(s) if necessary */
if (enablePullUp) {
pio->PIO_PUER = mask;
}
else {
pio->PIO_PUDR = mask;
}
abcdsr = pio->PIO_ABCDSR[0];
pio->PIO_ABCDSR[0] &= (~mask & abcdsr);
abcdsr = pio->PIO_ABCDSR[1];
pio->PIO_ABCDSR[1] = (mask | abcdsr);
pio->PIO_PDR = mask;
}
/**
* \brief Configures one or more pin(s) of a PIO controller as being controlled by
* peripheral D. Optionally, the corresponding internal pull-up(s) can be enabled.
*
* \param pio Pointer to a PIO controller.
* \param mask Bitmask of one or more pin(s) to configure.
* \param enablePullUp Indicates if the pin(s) internal pull-up shall be
* configured.
*/
static void PIO_SetPeripheralD(
Pio *pio,
unsigned int mask,
unsigned char enablePullUp)
{
unsigned int abcdsr;
/* Disable interrupts on the pin(s) */
pio->PIO_IDR = mask;
/* Enable the pull-up(s) if necessary */
if (enablePullUp) {
pio->PIO_PUER = mask;
}
else {
pio->PIO_PUDR = mask;
}
abcdsr = pio->PIO_ABCDSR[0];
pio->PIO_ABCDSR[0] = (mask | abcdsr);
abcdsr = pio->PIO_ABCDSR[1];
pio->PIO_ABCDSR[1] = (mask | abcdsr);
pio->PIO_PDR = mask;
}
/**
* \brief Configures one or more pin(s) or a PIO controller as inputs. Optionally,
* the corresponding internal pull-up(s) and glitch filter(s) can be enabled.
*
* \param pio Pointer to a PIO controller.
* \param mask Bitmask indicating which pin(s) to configure as input(s).
* \param enablePullUp Indicates if the internal pull-up(s) must be enabled.
* \param enableFilter Indicates if the glitch filter(s) must be enabled.
*/
static void PIO_SetInput(
Pio *pio,
unsigned int mask,
unsigned char attribute)
{
/* Disable interrupts */
pio->PIO_IDR = mask;
/* Enable pull-up(s) if necessary */
if (attribute & PIO_PULLUP)
pio->PIO_PUER = mask;
else
pio->PIO_PUDR = mask;
/* Enable Input Filter if necessary */
if (attribute & (PIO_DEGLITCH | PIO_DEBOUNCE))
pio->PIO_IFER = mask;
else
pio->PIO_IFDR = mask;
/* Enable de-glitch or de-bounce if necessary */
if (attribute & PIO_DEGLITCH)
{
pio->PIO_IFSCDR = mask;
}
else
{
if (attribute & PIO_DEBOUNCE)
{
pio->PIO_IFSCER = mask;
}
}
/* Configure pin as input */
pio->PIO_ODR = mask;
pio->PIO_PER = mask;
}
/**
* \brief Configures one or more pin(s) of a PIO controller as outputs, with the
* given default value. Optionally, the multi-drive feature can be enabled
* on the pin(s).
*
* \param pio Pointer to a PIO controller.
* \param mask Bitmask indicating which pin(s) to configure.
* \param defaultValue Default level on the pin(s).
* \param enableMultiDrive Indicates if the pin(s) shall be configured as
* open-drain.
* \param enablePullUp Indicates if the pin shall have its pull-up activated.
*/
static void PIO_SetOutput(
Pio *pio,
unsigned int mask,
unsigned char defaultValue,
unsigned char enableMultiDrive,
unsigned char enablePullUp)
{
/* Disable interrupts */
pio->PIO_IDR = mask;
/* Enable pull-up(s) if necessary */
if (enablePullUp) {
pio->PIO_PUER = mask;
}
else {
pio->PIO_PUDR = mask;
}
/* Enable multi-drive if necessary */
if (enableMultiDrive) {
pio->PIO_MDER = mask;
}
else {
pio->PIO_MDDR = mask;
}
/* Set default value */
if (defaultValue) {
pio->PIO_SODR = mask;
}
else {
pio->PIO_CODR = mask;
}
/* Configure pin(s) as output(s) */
pio->PIO_OER = mask;
pio->PIO_PER = mask;
}
/*----------------------------------------------------------------------------
* Global functions
*----------------------------------------------------------------------------*/
/**
* \brief Configures a list of Pin instances, each of which can either hold a single
* pin or a group of pins, depending on the mask value; all pins are configured
* by this function. The size of the array must also be provided and is easily
* computed using PIO_LISTSIZE whenever its length is not known in advance.
*
* \param list Pointer to a list of Pin instances.
* \param size Size of the Pin list (calculated using PIO_LISTSIZE).
*
* \return 1 if the pins have been configured properly; otherwise 0.
*/
uint8_t PIO_Configure( const Pin *list, uint32_t size )
{
/* Configure pins */
while ( size > 0 )
{
switch ( list->type )
{
case PIO_PERIPH_A:
PIO_SetPeripheralA(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
case PIO_PERIPH_B:
PIO_SetPeripheralB(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
case PIO_PERIPH_C:
PIO_SetPeripheralC(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
case PIO_PERIPH_D:
PIO_SetPeripheralD(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
case PIO_INPUT:
PMC_EnablePeripheral(list->id);
PIO_SetInput(list->pio,
list->mask,
list->attribute);
break;
case PIO_OUTPUT_0:
case PIO_OUTPUT_1:
PIO_SetOutput(list->pio,
list->mask,
(list->type == PIO_OUTPUT_1),
(list->attribute & PIO_OPENDRAIN) ? 1 : 0,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
default: return 0;
}
list++;
size--;
}
return 1;
}
/**
* \brief Sets a high output level on all the PIOs defined in the given Pin instance.
* This has no immediate effects on PIOs that are not output, but the PIO
* controller will memorize the value they are changed to outputs.
*
* \param pin Pointer to a Pin instance describing one or more pins.
*/
void PIO_Set(const Pin *pin)
{
pin->pio->PIO_SODR = pin->mask;
}
/**
* \brief Sets a low output level on all the PIOs defined in the given Pin instance.
* This has no immediate effects on PIOs that are not output, but the PIO
* controller will memorize the value they are changed to outputs.
*
* \param pin Pointer to a Pin instance describing one or more pins.
*/
void PIO_Clear(const Pin *pin)
{
pin->pio->PIO_CODR = pin->mask;
}
/**
* \brief Returns 1 if one or more PIO of the given Pin instance currently have
* a high level; otherwise returns 0. This method returns the actual value that
* is being read on the pin. To return the supposed output value of a pin, use
* PIO_GetOutputDataStatus() instead.
*
* \param pin Pointer to a Pin instance describing one or more pins.
*
* \return 1 if the Pin instance contains at least one PIO that currently has
* a high level; otherwise 0.
*/
unsigned char PIO_Get( const Pin *pin )
{
unsigned int reg ;
if ( (pin->type == PIO_OUTPUT_0) || (pin->type == PIO_OUTPUT_1) )
{
reg = pin->pio->PIO_ODSR ;
}
else
{
reg = pin->pio->PIO_PDSR ;
}
if ( (reg & pin->mask) == 0 )
{
return 0 ;
}
else
{
return 1 ;
}
}
/**
* \brief Returns 1 if one or more PIO of the given Pin are configured to output a
* high level (even if they are not output).
* To get the actual value of the pin, use PIO_Get() instead.
*
* \param pin Pointer to a Pin instance describing one or more pins.
*
* \return 1 if the Pin instance contains at least one PIO that is configured
* to output a high level; otherwise 0.
*/
unsigned char PIO_GetOutputDataStatus(const Pin *pin)
{
if ((pin->pio->PIO_ODSR & pin->mask) == 0) {
return 0;
}
else {
return 1;
}
}
/*
* \brief Configures Glitch or Debouncing filter for input.
*
* \param pin Pointer to a Pin instance describing one or more pins.
* \param cuttoff Cutt off frequency for debounce filter.
*/
void PIO_SetDebounceFilter( const Pin *pin, uint32_t cuttoff )
{
Pio *pio = pin->pio;
pio->PIO_IFSCER = pin->mask; /* set Debouncing, 0 bit field no effect */
pio->PIO_SCDR = ((32678/(2*(cuttoff))) - 1) & 0x3FFF; /* the lowest 14 bits work */
}

161
minimal/pmc.c
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@ -1,161 +0,0 @@
/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2009, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
* ----------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------
* Headers
*----------------------------------------------------------------------------*/
#include "include/chip.h"
//#include <//assert.h>
/*----------------------------------------------------------------------------
* Local definitions
*----------------------------------------------------------------------------*/
#define MASK_STATUS0 0xFFFFFFFC
#define MASK_STATUS1 0xFFFFFFFF
/*----------------------------------------------------------------------------
* Exported functions
*----------------------------------------------------------------------------*/
/**
* \brief Enables the clock of a peripheral. The peripheral ID is used
* to identify which peripheral is targetted.
*
* \note The ID must NOT be shifted (i.e. 1 << ID_xxx).
*
* \param id Peripheral ID (ID_xxx).
*/
extern void PMC_EnablePeripheral( uint32_t dwId )
{
//assert( dwId < 35 ) ;
if ( dwId < 32 )
{
if ( (PMC->PMC_PCSR0 & ((uint32_t)1 << dwId)) == ((uint32_t)1 << dwId) )
{
}
else
{
PMC->PMC_PCER0 = 1 << dwId ;
}
}
else
{
dwId -= 32;
if ((PMC->PMC_PCSR1 & ((uint32_t)1 << dwId)) == ((uint32_t)1 << dwId))
{
}
else
{
PMC->PMC_PCER1 = 1 << dwId ;
}
}
}
/**
* \brief Disables the clock of a peripheral. The peripheral ID is used
* to identify which peripheral is targetted.
*
* \note The ID must NOT be shifted (i.e. 1 << ID_xxx).
*
* \param id Peripheral ID (ID_xxx).
*/
extern void PMC_DisablePeripheral( uint32_t dwId )
{
//assert( dwId < 35 ) ;
if ( dwId < 32 )
{
if ( (PMC->PMC_PCSR0 & ((uint32_t)1 << dwId)) != ((uint32_t)1 << dwId) )
{
}
else
{
PMC->PMC_PCDR0 = 1 << dwId ;
}
}
else
{
dwId -= 32 ;
if ( (PMC->PMC_PCSR1 & ((uint32_t)1 << dwId)) != ((uint32_t)1 << dwId) )
{
}
else
{
PMC->PMC_PCDR1 = 1 << dwId ;
}
}
}
/**
* \brief Enable all the periph clock via PMC.
*/
extern void PMC_EnableAllPeripherals( void )
{
PMC->PMC_PCER0 = MASK_STATUS0 ;
while ( (PMC->PMC_PCSR0 & MASK_STATUS0) != MASK_STATUS0 ) ;
PMC->PMC_PCER1 = MASK_STATUS1 ;
while ( (PMC->PMC_PCSR1 & MASK_STATUS1) != MASK_STATUS1 ) ;
}
/**
* \brief Disable all the periph clock via PMC.
*/
extern void PMC_DisableAllPeripherals( void )
{
PMC->PMC_PCDR0 = MASK_STATUS0 ;
while ( (PMC->PMC_PCSR0 & MASK_STATUS0) != 0 ) ;
PMC->PMC_PCDR1 = MASK_STATUS1 ;
while ( (PMC->PMC_PCSR1 & MASK_STATUS1) != 0 ) ;
}
/**
* \brief Get Periph Status for the given peripheral ID.
*
* \param id Peripheral ID (ID_xxx).
*/
extern uint32_t PMC_IsPeriphEnabled( uint32_t dwId )
{
//assert( dwId < 35 ) ;
if ( dwId < 32 )
{
return ( PMC->PMC_PCSR0 & (1 << dwId) ) ;
}
else {
return ( PMC->PMC_PCSR1 & (1 << (dwId - 32)) ) ;
}
}

30
minimal/startup.s
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@ -1,30 +0,0 @@
.thumb
.syntax unified
.section INTERRUPT_VECTOR, "x"
.global _Reset
_Reset:
B Reset_Handler /* Reset */
B . /* Undefined */
B . /* SWI */
B . /* Prefetch Abort */
B . /* Data Abort */
B . /* reserved */
B . /* IRQ */
B . /* FIQ */
Reset_Handler:
LDR sp, =stack_top
MOV r0, #41
MOV r1, #41
MOV r2, #41
MOV r3, #41
MOV r4, #41
MOV r5, #41
MOV r6, #41
MOV r7, #41
MOV r8, #41
MOV r9, #41
MOV r10, #41
MOV r11, #41
// BL c_entry
B .

20
minimal/test.c
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@ -1,20 +0,0 @@
#include "include/pio.h"
#include "include/board.h"
#define sam3s2
const Pin statusled = {LED_STATUS, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT};
const Pin statusled2 = {LED_STATUS2, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT};
int c_entry()
{
// PIO_OER = 0x00060000;
PIO_Configure(&statusled, PIO_LISTSIZE(statusled));
PIO_Clear(&statusled);
PIO_Configure(&statusled2, PIO_LISTSIZE(statusled));
PIO_Set(&statusled2);
return 0;
}

14
minimal/test.ld
View File

@ -1,14 +0,0 @@
ENTRY(_Reset)
SECTIONS
{
. = 0x0;
.text : {
startup.o (INTERRUPT_VECTOR)
*(.text)
}
.data : { *(.data) }
.bss : { *(.bss COMMON) }
. = ALIGN(8);
. = . + 0x1000; /* 4kB of stack memory */
stack_top = .;
}