ArduinoCore-samd/variants/mkrzero/variant.h
2019-04-21 01:47:47 -04:00

197 lines
5.8 KiB
C

/*
Copyright (c) 2014-2015 Arduino LLC. 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
*/
#pragma once
// The definitions here needs a SAMD core >=1.6.10
#define ARDUINO_SAMD_VARIANT_COMPLIANCE 10610
#include <WVariant.h>
// General definitions
// -------------------
// Frequency of the board main oscillator
#define VARIANT_MAINOSC (32768ul)
// Master clock frequency
#define VARIANT_MCK (F_CPU)
// Pins
// ----
// Number of pins defined in PinDescription array
#define PINS_COUNT (26u)
#define NUM_DIGITAL_PINS (15u)
#define NUM_ANALOG_INPUTS (7u)
#define NUM_ANALOG_OUTPUTS (1u)
// Low-level pin register query macros
// -----------------------------------
#define digitalPinToPort(P) (&(PORT->Group[g_APinDescription[P].ulPort]))
#define digitalPinToBitMask(P) (1 << g_APinDescription[P].ulPin)
//#define analogInPinToBit(P) ()
#define portOutputRegister(port) (&(port->OUT.reg))
#define portInputRegister(port) (&(port->IN.reg))
#define portModeRegister(port) (&(port->DIR.reg))
#define digitalPinHasPWM(P) (g_APinDescription[P].ulPWMChannel != NOT_ON_PWM || g_APinDescription[P].ulTCChannel != NOT_ON_TIMER)
/*
* digitalPinToTimer(..) is AVR-specific and is not defined for SAMD
* architecture. If you need to check if a pin supports PWM you must
* use digitalPinHasPWM(..).
*
* https://github.com/arduino/Arduino/issues/1833
*/
// #define digitalPinToTimer(P)
//Battery
#define ADC_BATTERY (33u)
// LEDs
// ----
#define PIN_LED (32u)
#define LED_BUILTIN PIN_LED
// Analog pins
// -----------
#define PIN_A0 (15u)
#define PIN_A1 (16u)
#define PIN_A2 (17u)
#define PIN_A3 (18u)
#define PIN_A4 (19u)
#define PIN_A5 (20u)
#define PIN_A6 (21u)
static const uint8_t A0 = PIN_A0;
static const uint8_t A1 = PIN_A1;
static const uint8_t A2 = PIN_A2;
static const uint8_t A3 = PIN_A3;
static const uint8_t A4 = PIN_A4;
static const uint8_t A5 = PIN_A5;
static const uint8_t A6 = PIN_A6;
#define ADC_RESOLUTION 12
// SPI Interfaces
// --------------
#define SPI_INTERFACES_COUNT 2
// SPI
#define PIN_SPI_MISO (10u)
#define PIN_SPI_MOSI (8u)
#define PIN_SPI_SCK (9u)
#define PIN_SPI_SS (4u)
#define PERIPH_SPI sercom1
#define PAD_SPI_TX SPI_PAD_0_SCK_1
#define PAD_SPI_RX SERCOM_RX_PAD_3
static const uint8_t SS = PIN_SPI_SS; // SPI Slave SS not used. Set here only for reference.
static const uint8_t MOSI = PIN_SPI_MOSI;
static const uint8_t MISO = PIN_SPI_MISO;
static const uint8_t SCK = PIN_SPI_SCK;
// SPI1: Connected to SD
#define PIN_SPI1_MISO (29u)
#define PIN_SPI1_MOSI (26u)
#define PIN_SPI1_SCK (27u)
#define PIN_SPI1_SS (28u)
#define PERIPH_SPI1 sercom4
#define PAD_SPI1_TX SPI_PAD_0_SCK_1
#define PAD_SPI1_RX SERCOM_RX_PAD_3
static const uint8_t SS1 = PIN_SPI1_SS;
static const uint8_t MOSI1 = PIN_SPI1_MOSI;
static const uint8_t MISO1 = PIN_SPI1_MISO;
static const uint8_t SCK1 = PIN_SPI1_SCK;
// Needed for SD library
#define SDCARD_SPI SPI1
#define SDCARD_MISO_PIN PIN_SPI1_MISO
#define SDCARD_MOSI_PIN PIN_SPI1_MOSI
#define SDCARD_SCK_PIN PIN_SPI1_SCK
#define SDCARD_SS_PIN PIN_SPI1_SS
// Wire Interfaces
// ---------------
#define WIRE_INTERFACES_COUNT 1
// Wire
#define PIN_WIRE_SDA (11u)
#define PIN_WIRE_SCL (12u)
#define PERIPH_WIRE sercom2
#define WIRE_IT_HANDLER SERCOM2_Handler
// USB
// ---
#define PIN_USB_DM (22ul)
#define PIN_USB_DP (23ul)
#define PIN_USB_HOST_ENABLE (24ul)
// I2S Interfaces
// --------------
#define I2S_INTERFACES_COUNT 1
#define I2S_DEVICE 0
#define I2S_CLOCK_GENERATOR 3
#define PIN_I2S_SD (PIN_A6)
#define PIN_I2S_SCK (2u)
#define PIN_I2S_FS (3u)
// Serial ports
// ------------
#ifdef __cplusplus
#include "SERCOM.h"
#include "Uart.h"
// Instances of SERCOM
extern SERCOM sercom0;
extern SERCOM sercom1;
extern SERCOM sercom2;
extern SERCOM sercom3;
extern SERCOM sercom4;
extern SERCOM sercom5;
// Serial1
extern Uart Serial1;
#define PIN_SERIAL1_RX (13ul)
#define PIN_SERIAL1_TX (14ul)
#define PAD_SERIAL1_TX (UART_TX_PAD_2)
#define PAD_SERIAL1_RX (SERCOM_RX_PAD_3)
#endif // __cplusplus
// These serial port names are intended to allow libraries and architecture-neutral
// sketches to automatically default to the correct port name for a particular type
// of use. For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
// the first hardware serial port whose RX/TX pins are not dedicated to another use.
//
// SERIAL_PORT_MONITOR Port which normally prints to the Arduino Serial Monitor
//
// SERIAL_PORT_USBVIRTUAL Port which is USB virtual serial
//
// SERIAL_PORT_LINUXBRIDGE Port which connects to a Linux system via Bridge library
//
// SERIAL_PORT_HARDWARE Hardware serial port, physical RX & TX pins.
//
// SERIAL_PORT_HARDWARE_OPEN Hardware serial ports which are open for use. Their RX & TX
// pins are NOT connected to anything by default.
#define SERIAL_PORT_USBVIRTUAL SerialUSB
#define SERIAL_PORT_MONITOR SerialUSB
#define SERIAL_PORT_HARDWARE Serial1
#define SERIAL_PORT_HARDWARE_OPEN Serial1
// Alias Serial to SerialUSB
#define Serial SerialUSB