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Arduino/hardware/sam/variants/arduino_due/variant.cpp

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[sam] modifying some files to obtain the right license
2011-10-25 16:19:43 +02:00
/*
Copyright (c) 2011 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
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#include "variant.h"
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/*
* DUE Board pin | PORT
* ----------------+--------
* 0 RX0 | PA11
* 1 TX0 | PA12
* 2 PWML3 | PC9
* 3 PWMH3 | PB16
* 4 NPCS0 | PA16
* 5 PWM | PA30
* 6 PWMH2 | PA6
* 7 PWML2 | PC8
* 8 PWML1 | PC7
* 9 PWMH1 | PA5
* 10 | PA1
* 11 PWMH0 | PA4
* 12 PWML0 | PC6
* 13 | PC21
* 14 TX3 | PA22
* 15 RX3 | PA23
* 16 TX2 | PA20
* 17 RX2 | PA21
* 18 TX1 | PA18
* 19 RX1 | PA19
* 20 SDA | PA24
* 21 SCL | PA25
* 22 | PC3
* 23 | PC2
* 24 | PC1
* 25 | PC0
* 26 | PB28
* 27 | PB27
* 28 | PB26
* 29 | PB25
* 30 | PB24
* 31 | PB23
* 32 | PB22
* 33 | PB21
* 34 | PB20
* 35 | PB19
* 36 | PB18
* 37 | PB17
* 38 | PA28
* 39 | PA29
* 40 | PC22
* 41 | PA31
* 42 | PC23
* 43 | PB0
* 44 | PC24
* 45 | PB1
* 46 | PC25
* 47 | PB2
* 48 | PC26
* 49 | PB11
* 50 | PB12
* 51 | PB13
* 52 | PC27
* 53 | PA27
* A0 | PB5
* A1 | PB6
* A2 | PB7
* A3 | PB8
* A4 | PC28
* A5 | PC29
* A6 | PC30
* A7 | PC31
* A8 | PB3
* A9 | PB4
* A10 | PC15
* A11 | PC16
* A12 | PC17
* A13 | PC18
* A14 | This pin is DAC0 output of LTC1661CMS8
* A15 | This pin is DAC1 output of LTC1661CMS8
* SDA1 | PA9
* SCL1 | PA10
*
*
* LTC1661CMS8 pin | PORT
* ----------------+--------
* #CS/LD | PB9
* SCK | PB10
* DIN | PB14
*
*
* LEDs | PORT
* ----------------+--------
* "TX" | PC19
* "RX" | PC14
* "L" | PC21
*/
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/*
* Pins descriptions
*/
extern const PinDescription g_APinDescription[]=
{
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// 0 .. 53 - Digital pins
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// 0/1 - UART (Serial)
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{ PIOA, PIO_PA11A_URXD, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // URXD
{ PIOA, PIO_PA12A_UTXD, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // UTXD
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// 2
{ PIOC, PIO_PC9B_PWML3, ID_PIOC, PIO_PERIPH_B, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM), NONE }, // PWML3
{ PIOB, PIO_PB16B_PWMH3, ID_PIOB, PIO_PERIPH_B, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM), NONE }, // PWMH3
{ PIOC, PIO_PA16A_NPCS0, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // NPCS0
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// 5
{ PIOA, PIO_PA30B_TIOA2, ID_PIOA, PIO_PERIPH_B, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM), NONE }, // PWM
{ PIOA, PIO_PA6B_PWMH2, ID_PIOA, PIO_PERIPH_B, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM), NONE }, // PWMH2
{ PIOC, PIO_PC8B_PWML2, ID_PIOC, PIO_PERIPH_B, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM), NONE }, // PWML2
{ PIOC, PIO_PC7B_PWML1, ID_PIOC, PIO_PERIPH_B, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM), NONE }, // PWML1
{ PIOA, PIO_PA5B_PWMH1, ID_PIOA, PIO_PERIPH_B, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM), NONE }, // PWMH1
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// 10
{ PIOA, PIO_PA1, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT, 0, NONE }, // PIN 10
{ PIOA, PIO_PA4B_PWMH0, ID_PIOA, PIO_PERIPH_B, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM), NONE }, // PWMH0
{ PIOC, PIO_PC6B_PWML0, ID_PIOC, PIO_PERIPH_B, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM), NONE }, // PWML0
// 13 - AMBER LED
{ PIOC, PIO_PC21, ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 13
// 14/15 - USART2 (Serial4)
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{ PIOA, PIO_PA22A_TXD2, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // TXD2
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{ PIOA, PIO_PA23A_RXD2, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // RXD2
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// 16/17 - USART1 (Serial3)
{ PIOA, PIO_PA20A_TXD1, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // TXD1
{ PIOA, PIO_PA21A_RXD1, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // RXD1
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// 18/19 - USART0 (Serial2)
{ PIOA, PIO_PA18A_TXD0, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // TXD0
{ PIOA, PIO_PA19A_RXD0, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // RXD0
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// 20/21 - TWI1
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{ PIOA, PIO_PA24A_TWD1, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // TWD1 - SDA0
{ PIOA, PIO_PA25A_TWCK1, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // TWCK1 - SCL0
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// 22
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{ PIOC, PIO_PC3 , ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 22
{ PIOC, PIO_PC2 , ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 23
{ PIOC, PIO_PC1 , ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 24
{ PIOC, PIO_PC0 , ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 25
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// 26
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{ PIOB, PIO_PB28, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 26
{ PIOB, PIO_PB27, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 27
{ PIOB, PIO_PB26, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 28
{ PIOB, PIO_PB25, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 29
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// 30
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{ PIOB, PIO_PB24, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 30
{ PIOB, PIO_PB23, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 31
{ PIOB, PIO_PB22, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 32
{ PIOB, PIO_PB21, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 33
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// 34
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{ PIOB, PIO_PB20, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 34
{ PIOB, PIO_PB19, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 35
{ PIOB, PIO_PB18, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 36
{ PIOB, PIO_PB17, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 37
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// 38
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{ PIOA, PIO_PA28, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 38
{ PIOA, PIO_PA29, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 39
{ PIOC, PIO_PC22, ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 40
{ PIOA, PIO_PA31, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 41
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// 42
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{ PIOC, PIO_PC23, ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 42
{ PIOB, PIO_PB0 , ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 43
{ PIOC, PIO_PC24, ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 44
{ PIOB, PIO_PB1 , ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 45
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// 46
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{ PIOC, PIO_PC25, ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 46
{ PIOB, PIO_PB2 , ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 47
{ PIOC, PIO_PC26, ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 48
{ PIOB, PIO_PB11, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 49
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// 50
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{ PIOB, PIO_PB12, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 50
{ PIOB, PIO_PB13, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 51
{ PIOC, PIO_PC27, ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 52
{ PIOA, PIO_PA27, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // PIN 53
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// 54 .. 67 - Analog Inputs
{ PIOB, PIO_PB5X1_AD0, ID_PIOB, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC0 }, // AD0
{ PIOB, PIO_PB6X1_AD1, ID_PIOB, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC1 }, // AD1
{ PIOB, PIO_PB7X1_AD2, ID_PIOB, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC2 }, // AD2
{ PIOB, PIO_PB8X1_AD3, ID_PIOB, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC3 }, // AD3
// 58
{ PIOC, PIO_PC28X1_AD4, ID_PIOC, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC4 }, // AD4
{ PIOC, PIO_PC29X1_AD5, ID_PIOC, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC5 }, // AD5
{ PIOC, PIO_PC30X1_AD6, ID_PIOC, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC6 }, // AD6
{ PIOC, PIO_PC31X1_AD7, ID_PIOC, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC7 }, // AD7
// 62
{ PIOB, PIO_PB3X1_AD12B2, ID_PIOB, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC8 }, // AD8
{ PIOB, PIO_PB4X1_AD12B3, ID_PIOB, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC9 }, // AD9
{ PIOC, PIO_PC15X1_AD12B4, ID_PIOC, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC10 }, // AD10
{ PIOC, PIO_PC16X1_AD12B5, ID_PIOC, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC11 }, // AD11
// 66
{ PIOC, PIO_PC17X1_AD12B6, ID_PIOC, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC12 }, // AD12
{ PIOC, PIO_PC18X1_AD12B7, ID_PIOC, PIO_INPUT, PIO_DEFAULT, PIN_ATTR_ANALOG, ADC13 }, // AD13
// 68/69 - TWI0
{ PIOA, PIO_PA9A_TWD0, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // TWD0 - SDA1
{ PIOA, PIO_PA10A_TWCK0, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // TWCK0 - SCL1
// 70/71/72 - External DAC
{ PIOB, PIO_PB9, ID_PIOB, PIO_OUTPUT_1, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // DAC-CS
{ PIOB, PIO_PB10, ID_PIOB, PIO_OUTPUT_1, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // DAC-SCK
{ PIOB, PIO_PB14, ID_PIOB, PIO_OUTPUT_1, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // DAC-DIN
// 73/74 - LEDs
{ PIOC, PIO_PC14, ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // LED AMBER RXL
{ PIOC, PIO_PC19, ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // LED AMBER TXL
// 75/76/77 - SPI
{ PIOA, PIO_PA13A_MISO, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // MISO
{ PIOA, PIO_PA14A_MOSI, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // MOSI
{ PIOA, PIO_PA15A_SPCK, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL, NONE }, // SPCK
// 78 .. 83 - "All pins" masks
// 78 - TWI0 all pins
{ PIOA, PIO_PA9A_TWD0|PIO_PA10A_TWCK0, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NONE }, // All TWI0 pins
// 79 - TWI1 all pins
{ PIOA, PIO_PA24A_TWD1|PIO_PA25A_TWCK1, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NONE }, // All TWI1 pins
// 80 - UART (Serial) all pins
{ PIOA, PIO_PA11A_URXD|PIO_PA12A_UTXD, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NONE }, // All UART pins
// 81 - USART0 (Serial2) all pins
{ PIOA, PIO_PA19A_RXD0|PIO_PA18A_TXD0, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NONE }, // All USART0 pins
// 82 - USART1 (Serial3) all pins
{ PIOA, PIO_PA21A_RXD1|PIO_PA20A_TXD1, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NONE }, // All USART1 pins
// 83 - USART2 (Serial4) all pins
{ PIOA, PIO_PA23A_RXD2|PIO_PA22A_TXD2, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NONE }, // All USART2 pins
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{ NULL, 0, 0, PIO_NOT_A_PIN, PIO_DEFAULT, 0, NONE } /* END */
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} ;
/*
* UART objects
*/
RingBuffer rx_buffer1 ;
RingBuffer tx_buffer1 ;
UARTClass Serial( UART, UART_IRQn, ID_UART, &rx_buffer1, &tx_buffer1 ) ;
#ifdef __cplusplus
extern "C" {
#endif
// IT handlers
extern void UART_IrqHandler( void )
{
Serial.IrqHandler() ;
}
#ifdef __cplusplus
}
#endif
// ----------------------------------------------------------------------------
/*
* USART objects
*/
RingBuffer rx_buffer2 ;
RingBuffer tx_buffer2 ;
RingBuffer rx_buffer3 ;
RingBuffer tx_buffer3 ;
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RingBuffer rx_buffer4 ;
RingBuffer tx_buffer4 ;
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USARTClass Serial2( USART0, USART0_IRQn, ID_USART0, &rx_buffer2, &tx_buffer2 ) ;
USARTClass Serial3( USART1, USART1_IRQn, ID_USART1, &rx_buffer3, &tx_buffer3 ) ;
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USARTClass Serial4( USART2, USART2_IRQn, ID_USART2, &rx_buffer4, &tx_buffer4 ) ;
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#ifdef __cplusplus
extern "C" {
#endif
// IT handlers
extern void USART0_IrqHandler( void )
{
Serial2.IrqHandler() ;
}
extern void USART1_IrqHandler( void )
{
Serial3.IrqHandler() ;
}
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extern void USART2_IrqHandler( void )
{
Serial4.IrqHandler() ;
}
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#ifdef __cplusplus
}
#endif
// ----------------------------------------------------------------------------
#ifdef __cplusplus
extern "C" {
#endif
/**
*
*/
extern void init( void )
{
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SystemInit() ;
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/* Set Systick to 1ms interval, common to all SAM3 variants */
if ( SysTick_Config( SystemCoreClock / 1000 ) )
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{
/* Capture error */
while ( 1 ) ;
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}
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/* Disable watchdog, common to all SAM variants */
WDT_Disable( WDT ) ;
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// Initialize Serial port UART, common to all SAM3 variants
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PIO_Configure( g_APinDescription[PINS_UART].pPort, g_APinDescription[PINS_UART].ulPinType,
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g_APinDescription[PINS_UART].ulPin, g_APinDescription[PINS_UART].ulPinConfiguration ) ;
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// Initialize 10bit Analog Controller
/* Enable peripheral clock.*/
PMC_EnablePeripheral( ID_ADC ) ;
/* Initialize ADC. */
/* startup = 8: 512 periods of ADCClock
* for prescal = 4
* prescal: ADCClock = MCK / ( (PRESCAL+1) * 2 ) => 64MHz / ((4+1)*2) = 6.4MHz
* ADC clock = 6.4 MHz
*/
adc_init( ADC, SystemCoreClock, 6400000, 10 ) ;
adc_configure_timing( ADC, 1200 ) ;
adc_configure_trigger( ADC, ADC_TRIG_SW ) ;
adc_disable_interrupt( ADC, 0xFFFFFFFF ) ; /* Disable all adc interrupt. */
adc_disable_channel( ADC, ADC_ALL_CHANNEL ) ;
// Initialize 12bit Analog Controller
/* Enable peripheral clock.*/
PMC_EnablePeripheral( ID_ADC12B ) ;
/* Initialize ADC12. */
/* startup = 8: 512 periods of ADCClock
* for prescal = 4
* prescal: ADCClock = MCK / ( (PRESCAL+1) * 2 ) => 64MHz / ((4+1)*2) = 6.4MHz
* ADC clock = 6.4 MHz
*/
adc12_init( ADC12B, SystemCoreClock, 6400000, 10, 1200 ) ;
adc12_configure_timing( ADC12B, 1200 ) ;
adc12_configure_trigger( ADC12B, ADC_TRIG_SW ) ;
adc12_disable_interrupt( ADC12B, 0xFFFFFFFF ) ; /* Disable all adc interrupt. */
adc12_disable_channel( ADC12B, ADC_ALL_CHANNEL ) ;
[sam] adding variant definition for Due
2011-09-13 17:01:32 +02:00
}
#ifdef __cplusplus
}
#endif
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