* Reduced PROGMEM / DRAM usage slightly (Using defaults w/HW5: Before -> 214,668 bytes / 5,757 bytes; After -> 213,414 bytes / 5,751 bytes)
* Optimized some menu options and calls
* Added more string constants and implemented them where found.
* Fixed some stylization
* Constants should always be uppercase.
* Features should use the `ENABLE_<feature name>` format.
* Options for features should use the `OPTION_<feature name>_<option name>` format.
* Added ENUMs for more clarity and better type checking.
* Moved some defines over to `constexpr` and `const` types. These are preferred over preprocessor constants when not intended for use with `#if` and other preprocessor language.
A sample `config.txt` is in the SD folder. Currently the option is disabled by default and must be enabled.
Also:
* Eliminated the 5V spike at boot when VSELECT is installed and enabled. See discussion #906
* Fixed a warning in `MD.ino`
* Did some code cleanup, more cleanup to come.
Two issues were resolved:
- this flashcart uses the Audio-In pin instead of the WR pin
- Writing 4MB gets stuck after bank 170 and needed the SRAM to be mapped (same as MBC5)
Function didn't display negative calibration factors correctly.
Also added option to use the calibration factor without enabling the calibration menu to save some space.
This updates the GBC Gameshark functions to check the Chip ID before performing any other functions, which ensures a good connection with the Gameshark cartridge and prevents erroneous dumps or writes due to poor connection.
This adds full support for the Xplorer 64, including backup and writing of new firmware to the device. Firmware must be unscrambled (not dumped directly from the chips in a chip reader) in order to work with this program. Firmware dumped via the Sanni Cart Reader with this function work perfectly when written back.
This updates the N64 Gameshark function description, adds progress bars for the writing and verification functions, and updates the Chip ID function to report an unknown chip.
This completes the N64 Gameshark functions. It adds the command to enable CPLD address ranges of 0x1EEx_xxxx, 0x1EFx_xxxx, and 0x1ECx_xxxx which are necessary to program the SST 28LF040 eeprom. This also adds full support for the SST 28LF040 eeproms.
Unable to actually test this myself because I do not have a HW3 to test on. However, looking at the schematic, if the EEP switch is set to the off position then the pin will be floating and the result of the 1K resistor test will be random.
DS1307 does not seem to have the lost lostPower function. So the time does not get set on upload and needs to be set manually as described in the [wiki](https://github.com/sanni/cartreader/wiki/Real%E2%80%90Time-Clock#setting-the-time).
In Config.h set like this:
````
#define RTC_installed
//#define DS3231
#define DS1307
````
Connect "Tiny RTC I2C module" or similar to the SDA/SCL/VCC/GND pins.
The `setVoltage()` function should be called even when `ENABLE_VSELECT` is disabled because `ENABLE_3V3FIX` also uses it. There is no resource cost to do this as when both options are disabled the compiler will optimize this function out. This just "future proofs" the code so if that function ever does more it doesn't need updated everywhere. This applies to `setup_FlashVoltage()` as well.
The changes to OSCR.cpp are just for code formatting and additional comments to clarify this.
