cartreader/Cart_Reader/OSCR.h

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/********************************************************************
* Open Source Cartridge Reader *
********************************************************************/
#ifndef OSCR_H_
#define OSCR_H_
#include <stdint.h>
#include <Arduino.h>
#include <SPI.h>
#include <Wire.h>
#include <avr/pgmspace.h>
#include <avr/wdt.h>
#include "Config.h"
/*==== SANITY CHECKS ==============================================*/
#if !(defined(HW1) || defined(HW2) || defined(HW3) || defined(HW4) || defined(HW5) || defined(SERIAL_MONITOR))
#error !!! PLEASE CHOOSE HARDWARE VERSION !!!
#endif
#if defined(ENABLE_3V3FIX) && !defined(ENABLE_VSELECT)
#warning Using 3V3FIX is best with VSELECT.
#endif
/*==== CONSTANTS ==================================================*/
// Updater baud rate
const uint16_t UPD_BAUD = 9600;
// Clock speeds
const unsigned long CS_16MHZ = 16000000UL;
const unsigned long CS_8MHZ = 8000000UL;
// ENUM for VSELECT & 3V3FIX
enum VOLTS: uint8_t {
// Paramters to pass to setVoltage() and setClockScale()
VOLTS_SET_5V = 0, // 5V parameter [ClockScale 0 = 16MHz, Voltage = 5V]
VOLTS_SET_3V3, // 3.3V parameter [ClockScale 1 = 8MHz, Voltage = 3.3V]
// Don't use the following as parameters
// Return values:
VOLTS_SUCCESS, // Return value for success
VOLTS_ERROR, // Return value for error
VOLTS_NOTENABLED, // Return value for not being enabled
VOLTS_UNKNOWN // Return value for all other states
};
/*==== VARIABLES ==================================================*/
extern unsigned long clock;
extern char ver[5];
extern VOLTS voltage;
/*==== FUNCTIONS ==================================================*/
extern void printVersionToSerial();
extern void setClockScale(VOLTS __x);
extern VOLTS setVoltage(VOLTS volts);
#include "ClockedSerial.h"
#endif /* OSCR_H_ */