Embedded_codes/libraries/RTTeensyLink/RTTeensyLinkEEPROM.cpp
2018-02-18 14:02:33 +05:30

82 lines
2.7 KiB
C++

////////////////////////////////////////////////////////////////////////////
//
// This file is part of RTTeensyLink
//
// Copyright (c) 2015, richards-tech, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
// Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
// PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include <string.h>
#include "RTTeensyLinkEEPROM.h"
#include <Arduino.h>
// The global config structure
RTTEENSYLINK_EEPROM RTTeensyLinkConfig;
bool RTTeensyLinkEEPROMValid()
{
RTTeensyLinkEEPROMRead(); // see what it really is
return (RTTeensyLinkConfig.sig0 == RTTEENSYLINKEEPROM_SIG0) &&
(RTTeensyLinkConfig.sig1 == RTTEENSYLINKEEPROM_SIG1);
}
void RTTeensyLinkEEPROMDisplay()
{
Serial.println();
if ((RTTeensyLinkConfig.sig0 != RTTEENSYLINKEEPROM_SIG0) ||
(RTTeensyLinkConfig.sig1 != RTTEENSYLINKEEPROM_SIG1)) {
Serial.println("Invalid config");
return;
}
Serial.print("Identity: ");
Serial.println(RTTeensyLinkConfig.identity);
}
void RTTeensyLinkEEPROMDefault()
{
RTTeensyLinkConfig.sig0 = RTTEENSYLINKEEPROM_SIG0; // set to valid signature
RTTeensyLinkConfig.sig1 = RTTEENSYLINKEEPROM_SIG1;
strcpy(RTTeensyLinkConfig.identity, "RTTeensyLink_Teensy");
RTTeensyLinkEEPROMWrite();
}
void RTTeensyLinkEEPROMRead()
{
unsigned char *data;
data = (unsigned char *)&RTTeensyLinkConfig;
for (int i = 0; i < (int)sizeof(RTTEENSYLINK_EEPROM); i++)
*data++ = EEPROM.read(i + RTTEENSYLINK_EEPROM_OFFSET);
}
void RTTeensyLinkEEPROMWrite()
{
unsigned char *data;
data = (unsigned char *)&RTTeensyLinkConfig;
for (int i = 0; i < (int)sizeof(RTTEENSYLINK_EEPROM); i++)
EEPROM.write(i + RTTEENSYLINK_EEPROM_OFFSET, *data++);
}