mirror of https://github.com/noisymime/Arduino.git
172 lines
5.5 KiB
C++
172 lines
5.5 KiB
C++
/*
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Copyright (c) 2011 Arduino. 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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extern const PinDescription g_APinDescription[]=
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{
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// LEDS, 0..2
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{ PIOB, PIO_PB0, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT }, // LED BLUE
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{ PIOB, PIO_PB1, ID_PIOB, PIO_OUTPUT_1, PIO_DEFAULT }, // LED GREEN
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{ PIOB, PIO_PB2, ID_PIOB, PIO_OUTPUT_1, PIO_DEFAULT }, // LED RED
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// USB, 3..3
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{ PIOA, PIO_PA0, ID_PIOA, PIO_INPUT, PIO_PULLUP }, // USB_VBUS
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// UART (Serial), 4..6
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{ PIOA, PIO_PA11A_URXD, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT }, // URXD
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{ PIOA, PIO_PA12A_UTXD, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT }, // UTXD
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{ PIOA, PIO_PA11A_URXD|PIO_PA12A_UTXD, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT }, // All UART pins
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// Push buttons, 7..8
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{ PIOA, PIO_PA18, ID_PIOA, PIO_INPUT, PIO_PULLUP | PIO_DEGLITCH }, // PB_LEFT
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{ PIOA, PIO_PA19, ID_PIOA, PIO_INPUT, PIO_PULLUP | PIO_DEGLITCH }, // PB_RIGHT
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// MCI (SDCARD), 9..19
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{ PIOA, PIO_PA25, ID_PIOA, PIO_INPUT, PIO_PULLUP }, // MCI Card Detect
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{ PIOA, PIO_PA5A_MCDA0, ID_PIOA, PIO_PERIPH_A, PIO_PULLUP }, // MCDA0
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{ PIOA, PIO_PA6A_MCDA1, ID_PIOA, PIO_PERIPH_A, PIO_PULLUP }, // MCDA1
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{ PIOA, PIO_PA7A_MCDA2, ID_PIOA, PIO_PERIPH_A, PIO_PULLUP }, // MCDA2
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{ PIOA, PIO_PA8A_MCDA3, ID_PIOA, PIO_PERIPH_A, PIO_PULLUP }, // MCDA3
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{ PIOC, PIO_PC28B_MCDA4, ID_PIOC, PIO_PERIPH_B, PIO_PULLUP }, // MCDA4
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{ PIOC, PIO_PC29B_MCDA5, ID_PIOC, PIO_PERIPH_B, PIO_PULLUP }, // MCDA5
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{ PIOC, PIO_PC30B_MCDA6, ID_PIOC, PIO_PERIPH_B, PIO_PULLUP }, // MCDA6
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{ PIOC, PIO_PC31B_MCDA7, ID_PIOC, PIO_PERIPH_B, PIO_PULLUP }, // MCDA7
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{ PIOA, PIO_PA4A_MCCDA, ID_PIOA, PIO_PERIPH_A, PIO_PULLUP }, // MCCDA
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{ PIOA, PIO_PA3A_MCCK, ID_PIOA, PIO_PERIPH_A, PIO_PULLUP }, // MCCK
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// SPI, 20..23
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{ PIOA, PIO_PA13A_MISO, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT }, // MISO
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{ PIOA, PIO_PA14A_MOSI, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT }, // MOSI
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{ PIOA, PIO_PA15A_SPCK, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT }, // SPCK
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{ PIOC, PIO_PC14B_NPCS2, ID_PIOC, PIO_PERIPH_B, PIO_DEFAULT }, // NPCS2
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// TouchScreen, 24..25
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{ PIOA, PIO_PA24, ID_PIOA, PIO_INPUT, PIO_PULLUP }, // IRQ_TSC
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{ PIOA, PIO_PA2, ID_PIOA, PIO_INPUT, PIO_PULLUP }, // BUSY_TSC
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// USART1, 26..29
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{ PIOA, PIO_PA21A_RXD1, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT }, // RXD1
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{ PIOA, PIO_PA20A_TXD1, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT }, // TXD1
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{ PIOA, PIO_PA22B_RTS1, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT }, // RTS1
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{ PIOA, PIO_PA23B_CTS1, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT }, // CTS1
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// LCD, 30..47
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{ PIOB, 0xFE01FE00, ID_PIOB, PIO_PERIPH_A, PIO_PULLUP }, // EBI Data bus PB9-16 PB25-31
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{ PIOB, PIO_PB23A_NWE, ID_PIOB, PIO_PERIPH_A, PIO_PULLUP }, // EBI_NWE
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{ PIOB, PIO_PB19A_NRD, ID_PIOB, PIO_PERIPH_A, PIO_PULLUP }, // EBI_NRD
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{ PIOC, PIO_PC16A_NCS2, ID_PIOC, PIO_PERIPH_A, PIO_PULLUP }, // LCD CS
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{ PIOB, PIO_PB8, ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT }, // LCD RS
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{ PIOC, PIO_PC19, ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT }, // LCD BackLight
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{ NULL, 0, 0, PIO_NOT_A_PIN, PIO_DEFAULT } // END
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} ;
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/*
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* UART objects
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*/
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RingBuffer rx_buffer1 ;
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RingBuffer tx_buffer1 ;
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UARTClass Serial( UART, UART_IRQn, ID_UART, &rx_buffer1, &tx_buffer1 ) ;
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#ifdef __cplusplus
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extern "C" {
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#endif
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// IT handlers
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extern void UART_IrqHandler( void )
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{
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Serial.IrqHandler() ;
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}
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#ifdef __cplusplus
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}
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#endif
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// ----------------------------------------------------------------------------
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/*
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* USART objects
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*/
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RingBuffer rx_buffer2 ;
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RingBuffer tx_buffer2 ;
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RingBuffer rx_buffer3 ;
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RingBuffer tx_buffer3 ;
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USARTClass Serial2( USART0, USART0_IRQn, ID_USART0, &rx_buffer2, &tx_buffer2 ) ;
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USARTClass Serial3( USART1, USART1_IRQn, ID_USART1, &rx_buffer3, &tx_buffer3 ) ;
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#ifdef __cplusplus
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extern "C" {
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#endif
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// IT handlers
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extern void USART0_IrqHandler( void )
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{
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Serial2.IrqHandler() ;
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}
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extern void USART1_IrqHandler( void )
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{
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Serial3.IrqHandler() ;
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}
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#ifdef __cplusplus
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}
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#endif
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// ----------------------------------------------------------------------------
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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*
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*/
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extern void init( void )
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{
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SystemInit() ;
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/* Set Systick to 1ms interval, common to all SAM3 variants */
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if ( SysTick_Config( SystemCoreClock / 1000 ) )
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{
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/* Capture error */
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while ( 1 ) ;
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}
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/* Disable watchdog, common to all SAM variants */
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WDT_Disable( WDT ) ;
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// Initialize UART Serial port
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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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// Switch off Power LED
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PIO_Configure( g_APinDescription[PIN_LED_RED].pPort, g_APinDescription[PIN_LED_RED].ulPinType,
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g_APinDescription[PIN_LED_RED].ulPin, g_APinDescription[PIN_LED_RED].ulPinConfiguration ) ;
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PIO_Clear( g_APinDescription[PIN_LED_RED].pPort, g_APinDescription[PIN_LED_RED].ulPin ) ;
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}
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#ifdef __cplusplus
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}
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#endif
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