97 lines
4.8 KiB
C++
97 lines
4.8 KiB
C++
/*
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Copyright (c) 2014-2015 Arduino LLC. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "variant.h"
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/*
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* Pins descriptions
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*/
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const PinDescription g_APinDescription[]=
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{
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// GPIO 0, 1, 2 on external pads
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// 0 - SERCOM0.0 for I2C SDA, UART TX, SPI MOSI, Captouch, IRQ, PWM out TCC0/WO[0], and gen purpose pin
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{ PORTA, 4, PIO_SERCOM_ALT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER), No_ADC_Channel, PWM0_CH0, TCC0_CH0, EXTERNAL_INT_4 }, // TCC0/WO[0]
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// 1 - ADC, DAC, IRQ, Captouch and general purpose pin - no timer
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{ PORTA, 2, PIO_ANALOG, PIN_ATTR_ANALOG, ADC_Channel0, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_2 }, // ADC/AIN[0]
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// 2 - SERCOM0 for I2C SCL, UART RX, SPI CLK, Captouch, IRQ, PWM out TCC0/WO[1], and gen purpose pin
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{ PORTA, 5, PIO_SERCOM_ALT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER), No_ADC_Channel, PWM0_CH1, TCC0_CH1, EXTERNAL_INT_5 }, // TCC0/WO[1]
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// GPIO 3 & 4 - DotStar internal data/clock
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// ----------------------------------------
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{ PORTA, 0, PIO_DIGITAL, 0, ADC_Channel4, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_0 }, // ADC/AIN[4]
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{ PORTA, 1, PIO_DIGITAL, 0, ADC_Channel5, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_1 }, // ADC/AIN[5]
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// GPIO 5, 6, 7 (USB interface)
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// ----------------------------
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{ PORTA, 28, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB Host enable - GPIO #5
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{ PORTA, 24, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB/DM - GPIO #6
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{ PORTA, 25, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB/DP - GPIO #7
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// GPIO 8, 9, 10 - analog inputs which are 'clones' of the analog pins
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// A0 (D8 same as D1)
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{ PORTA, 2, PIO_ANALOG, PIN_ATTR_ANALOG, ADC_Channel0, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_2 }, // ADC/AIN[0]
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// A1 (D9 same as D2)
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{ PORTA, 5, PIO_ANALOG, (PIN_ATTR_ANALOG|PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER), ADC_Channel5, PWM0_CH1, TCC0_CH1, EXTERNAL_INT_5 }, // TCC0/WO[1]
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// A2 (D10 same as D0)
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{ PORTA, 4, PIO_ANALOG, (PIN_ATTR_ANALOG|PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER), ADC_Channel4, PWM0_CH0, TCC0_CH0, EXTERNAL_INT_4 }, // TCC0/WO[0]
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// GPIO 11 & 12 (SWCLK & SWDIO)
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// --------------------------
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{ PORTA, 30, PIO_TIMER, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE },
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{ PORTA, 31, PIO_TIMER, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE },
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// GPIO 13 (LED)
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{ PORTA, 23, PIO_TIMER, PIN_ATTR_DIGITAL, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_7 }, // Digital #13
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// Placeholder #14 & 15 for 'txled'
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{ PORTA, 10, PIO_DIGITAL, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_10 },
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{ PORTA, 11, PIO_DIGITAL, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_11 },
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// Placeholder #16 - extra Sercom/SPI pin that doesnt actually get used
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{ PORTA, 6, PIO_SERCOM_ALT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER), No_ADC_Channel, PWM1_CH0, TCC1_CH0, EXTERNAL_INT_6 }, // TCC0/WO[1]
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// For unknown reasons we need to have gpio 17-21 so here are extra pins (shrug)
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{ PORTA, 14, PIO_DIGITAL, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_14 },
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{ PORTA, 15, PIO_DIGITAL, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER), No_ADC_Channel, PWM3_CH1, TC3_CH1, EXTERNAL_INT_15 },
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{ PORTA, 16, PIO_TIMER, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER), No_ADC_Channel, PWM2_CH0, TCC2_CH0, EXTERNAL_INT_0 }, // TCC2/WO[0]
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{ PORTA, 17, PIO_TIMER, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER), No_ADC_Channel, PWM2_CH1, TCC2_CH1, EXTERNAL_INT_1 }, // TCC2/WO[1]
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} ;
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const void* g_apTCInstances[TCC_INST_NUM+TC_INST_NUM]={ TCC0, TCC1, TCC2, TC3, TC4, TC5 } ;
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// Multi-serial objects instantiation
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SERCOM sercom0( SERCOM0 ) ;
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SERCOM sercom1( SERCOM1 ) ;
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SERCOM sercom2( SERCOM2 ) ;
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SERCOM sercom3( SERCOM3 ) ;
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Uart Serial1( &sercom0, PIN_SERIAL1_RX, PIN_SERIAL1_TX, PAD_SERIAL1_RX, PAD_SERIAL1_TX ) ;
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// If wire.h isnt included, just do nothing
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void WIRE_IT_HANDLER(void) __attribute__ ((weak));
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void SERCOM0_Handler()
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{
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Serial1.IrqHandler();
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WIRE_IT_HANDLER();
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}
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