A and B buttons have identical function now
reset on loader screen enters power down mode /wake up from power down
flash chip erase block size changed to 64K for faster flashing
Update Arduboy2 library to 5.2.1
bootloader support for alternate flash chipselect SDA
reverted Sprites.cpp
added checkBatteryState checkBatteryStateLED functions to Arduboy2 library
update cathy3K bootloader with menu scrolling and progressbar
Optimized wiring.c assembly code
Changed bootloader trigger combo to press UP + DOWN for ~1.5 seconds
removed turning on Rx LED when bootloader combo is triggered
removed bootloader trigger wait for button release
Timer/counter 4 is enabled on Arduino init() and a Timer/counter 4 overflow may happen right after the timer/counter 4 interrupt is enabled. When this happens the channels have not been initialized yet causing random noise/sounds being played.
This has been fixed by moving the interrupt enable after the channels have been initialized.