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Should prevent problem as described in discussion #857
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Update Xplorer64 functions in N64.ino to fix a potential issue for some hardware.
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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.
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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.
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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.
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Thx to [RWeick](https://github.com/RWeick/FCD-0003.1S-Xplorer64) for finding the address the firmware is mapped to.
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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.
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Allows to manually select a dump size up to 128 MB (used by some repros/aftermarket boards)
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Lots of changes/additions.
Added:
* Firmware Updater support: Supports the Firmware Updater app (release to follow soon). Enabled by default, can be disabled in the config.
* 3.3V Fix (3V3FIX): Enable if you have stability issues when using 3.3V, works best with VSELECT. Disabled by default, can be enabled in the config.
* `DynamicClockSerial`: Class that extends and modifies HardwareSerial to be compatible with a dynamically changing clock speed. Used through the `ClockedSerial` object/variable.
* `OSCR.cpp` & `OSCR.h`: New files for storing globals. Only contains these new additions for now. More code cleanup to come.
Changed:
* Moved configuration flags to `Config.h` and documented them better.
* Removed `vselect()` function. Now uses `setVoltage()` with the params `VOLTS_SET_3V3` and `VOLTS_SET_5V`.
Known Issues:
* Rarely the LCD backlight turns white when using 3V3FIX. Resetting fixes it. Doesn't affect functionality/usability; it's just weird.
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HiROM starts at bank 192 and has 64 banks so byte variable currBank overflows.
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Also, make print_FatalError(*) independent from print_Error(*).
Also, factorise common parts of print_Error(*).
Frees 2336 bytes of program space and 5 bytes of global ram space.
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IMPORTANT: with this change, the Adafruit clock generator becomes a hard
requirement to read and write gamecart eeproms.
This is a large patch, partly because JoyBus is used a lot:
- controller
- controller pak
- gamecart eeprom
and partly because of the further simplifications it allows.
Also, implement low-level bit shift functions in assembly in order to get
complete control of the timings: there can be just a few cycles of slack.
Also, use the time waiting for the input line to go high to pack received
bits into bytes on-the-fly, as there is now plenty of time.
This saves about 2080 bytes of program space, and 369 bytes of global ram
space.
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More sizeof() use, avoiding high-level loops when a callee can do it
without the call overhead on every iteration, a bit of source code
factorisation, avoiding initializers for large variables.
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So the format string is stored in flash rather than in ram.
The gain from doing just one like this is not much, to be done in more
places.
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Also, shave off 5 bytes from a local initializer.
Saves 22 bytes of program space and of global ram space.
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Fix out-of-bound access when first byte is not an ascii printable
character.
Reduces program space use by 480 bytes.
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This saves 370 bytes of program space.
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Saves 450 bytes of program space.
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No functional change intended.
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This does not save any space as the linker noticed it wasn't used.
Also, point the (commented-out) only caller to the equivalent libc
function.
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flashid (almost) always contains the hexadecimal representation of two
bytes, which then means it gets compares with strcmp, which in turn need
another string argument. Instead, make it an integer, removing the need to
call strcmp.
Add a separate string representation for printing purposes (maybe this can be
avoided by having the print function format it when needed ?).
The only apparent case where flashid is not an hexadecimal representation
of a pair of bytes is when N64 clears it to "CONF". Set flashid to zero
this case.
This saves about 500 bytes of program space and 200 bytes of ram.
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... bugs are to be expected :D
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