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[SAM] updating CAN transceiver conforming to Arduino API

This commit is contained in:
Thibaut VIARD 2013-01-30 15:12:14 +01:00
parent d25921692a
commit ecfea6da9f
2 changed files with 46 additions and 75 deletions
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67
hardware/arduino/sam/libraries/CAN/sn65hvd234.c
View File

@ -1,31 +1,21 @@
/* ---------------------------------------------------------------------------- /*
* ATMEL Microcontroller Software Support Copyright (c) 2013 Arduino. All right reserved.
* ----------------------------------------------------------------------------
* Copyright (c) 2010, Atmel Corporation This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* All rights reserved. License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met: This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* - Redistributions of source code must retain the above copyright notice, MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* this list of conditions and the disclaimer below. See the GNU Lesser General Public License for more details.
*
* Atmel's name may not be used to endorse or promote products derived from You should have received a copy of the GNU Lesser General Public
* this software without specific prior written permission. License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* 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 * \file
* *
@ -46,10 +36,7 @@
*/ */
extern uint32_t SN65HVD234_Init( SSN65HVD234_Data* pComponent ) extern uint32_t SN65HVD234_Init( SSN65HVD234_Data* pComponent )
{ {
pComponent->pPIO_Rs=NULL ;
pComponent->dwPin_Rs=0u ; pComponent->dwPin_Rs=0u ;
pComponent->pPIO_EN=NULL ;
pComponent->dwPin_EN=0u ; pComponent->dwPin_EN=0u ;
return 0u ; return 0u ;
@ -64,12 +51,11 @@ extern uint32_t SN65HVD234_Init( SSN65HVD234_Data* pComponent )
* *
* \return 0 if OK * \return 0 if OK
*/ */
extern uint32_t SN65HVD234_SetRs( SSN65HVD234_Data* pComponent, Pio* pPIO_Rs, uint32_t dwPin_Rs ) extern uint32_t SN65HVD234_SetRs( SSN65HVD234_Data* pComponent, uint32_t dwPin_Rs )
{ {
pComponent->pPIO_Rs=pPIO_Rs ;
pComponent->dwPin_Rs=dwPin_Rs ; pComponent->dwPin_Rs=dwPin_Rs ;
PIO_SetOutput( pPIO_Rs, dwPin_Rs, 0, 0, 1 ) ; pinMode( dwPin_Rs, OUTPUT ) ;
return 0u ; return 0u ;
} }
@ -83,12 +69,11 @@ extern uint32_t SN65HVD234_SetRs( SSN65HVD234_Data* pComponent, Pio* pPIO_Rs, ui
* *
* \return 0 if OK * \return 0 if OK
*/ */
extern uint32_t SN65HVD234_SetEN( SSN65HVD234_Data* pComponent, Pio* pPIO_EN, uint32_t dwPin_EN ) extern uint32_t SN65HVD234_SetEN( SSN65HVD234_Data* pComponent, uint32_t dwPin_EN )
{ {
pComponent->pPIO_EN=pPIO_EN ;
pComponent->dwPin_EN=dwPin_EN ; pComponent->dwPin_EN=dwPin_EN ;
PIO_SetOutput( pPIO_EN, dwPin_EN, 0, 0, 1 ) ; pinMode( dwPin_EN, OUTPUT ) ;
return 0u ; return 0u ;
} }
@ -103,7 +88,7 @@ extern uint32_t SN65HVD234_SetEN( SSN65HVD234_Data* pComponent, Pio* pPIO_EN, ui
extern uint32_t SN65HVD234_Enable( SSN65HVD234_Data* pComponent ) extern uint32_t SN65HVD234_Enable( SSN65HVD234_Data* pComponent )
{ {
// Raise EN of SN65HVD234 to High Level (Vcc) // Raise EN of SN65HVD234 to High Level (Vcc)
pComponent->pPIO_EN->PIO_SODR=pComponent->dwPin_EN ; digitalWrite( pComponent->dwPin_EN, HIGH ) ;
return 0u ; return 0u ;
} }
@ -118,7 +103,7 @@ extern uint32_t SN65HVD234_Enable( SSN65HVD234_Data* pComponent )
extern uint32_t SN65HVD234_Disable( SSN65HVD234_Data* pComponent ) extern uint32_t SN65HVD234_Disable( SSN65HVD234_Data* pComponent )
{ {
// Lower EN of SN65HVD234 to Low Level (0.0v) // Lower EN of SN65HVD234 to Low Level (0.0v)
pComponent->pPIO_EN->PIO_CODR=pComponent->dwPin_EN ; digitalWrite( pComponent->dwPin_EN, LOW ) ;
return 0u ; return 0u ;
} }
@ -133,7 +118,7 @@ extern uint32_t SN65HVD234_Disable( SSN65HVD234_Data* pComponent )
extern uint32_t SN65HVD234_EnableLowPower( SSN65HVD234_Data* pComponent ) extern uint32_t SN65HVD234_EnableLowPower( SSN65HVD234_Data* pComponent )
{ {
// Raise Rs of SN65HVD234 to more than 0.75v // Raise Rs of SN65HVD234 to more than 0.75v
pComponent->pPIO_Rs->PIO_SODR=pComponent->dwPin_Rs ; digitalWrite( pComponent->dwPin_Rs, HIGH ) ;
// Now, SN65HVD234 is only listening // Now, SN65HVD234 is only listening
@ -150,7 +135,7 @@ extern uint32_t SN65HVD234_EnableLowPower( SSN65HVD234_Data* pComponent )
extern uint32_t SN65HVD234_DisableLowPower( SSN65HVD234_Data* pComponent ) extern uint32_t SN65HVD234_DisableLowPower( SSN65HVD234_Data* pComponent )
{ {
// Lower Rs of SN65HVD234 to 0.0v < 0.33v // Lower Rs of SN65HVD234 to 0.0v < 0.33v
pComponent->pPIO_Rs->PIO_CODR=pComponent->dwPin_Rs ; digitalWrite( pComponent->dwPin_Rs, LOW ) ;
return 0u ; return 0u ;
} }

54
hardware/arduino/sam/libraries/CAN/sn65hvd234.h
View File

@ -1,31 +1,21 @@
/* ---------------------------------------------------------------------------- /*
* ATMEL Microcontroller Software Support Copyright (c) 2013 Arduino. All right reserved.
* ----------------------------------------------------------------------------
* Copyright (c) 2010, Atmel Corporation This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* All rights reserved. License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met: This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* - Redistributions of source code must retain the above copyright notice, MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* this list of conditions and the disclaimer below. See the GNU Lesser General Public License for more details.
*
* Atmel's name may not be used to endorse or promote products derived from You should have received a copy of the GNU Lesser General Public
* this software without specific prior written permission. License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* 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 * \file
* *
@ -44,20 +34,16 @@
typedef struct _SSN65HVD234_Data typedef struct _SSN65HVD234_Data
{ {
/** PIO dedicated to Rs pin */
Pio* pPIO_Rs ;
/** Rs Pin on PIO */ /** Rs Pin on PIO */
uint32_t dwPin_Rs ; uint32_t dwPin_Rs ;
/** PIO dedicated to EN pin */
Pio* pPIO_EN ;
/** EN Pin on PIO */ /** EN Pin on PIO */
uint32_t dwPin_EN ; uint32_t dwPin_EN ;
} SSN65HVD234_Data ; } SSN65HVD234_Data ;
extern uint32_t SN65HVD234_Init( SSN65HVD234_Data* pComponent ) ; extern uint32_t SN65HVD234_Init( SSN65HVD234_Data* pComponent ) ;
extern uint32_t SN65HVD234_SetRs( SSN65HVD234_Data* pComponent, Pio* pPIO_Rs, uint32_t dwPin_Rs ) ; extern uint32_t SN65HVD234_SetRs( SSN65HVD234_Data* pComponent, uint32_t dwPin_Rs ) ;
extern uint32_t SN65HVD234_SetEN( SSN65HVD234_Data* pComponent, Pio* pPIO_EN, uint32_t dwPin_EN ) ; extern uint32_t SN65HVD234_SetEN( SSN65HVD234_Data* pComponent, uint32_t dwPin_EN ) ;
extern uint32_t SN65HVD234_Enable( SSN65HVD234_Data* pComponent ) ; extern uint32_t SN65HVD234_Enable( SSN65HVD234_Data* pComponent ) ;
extern uint32_t SN65HVD234_Disable( SSN65HVD234_Data* pComponent ) ; extern uint32_t SN65HVD234_Disable( SSN65HVD234_Data* pComponent ) ;