EM Firmware Flasher
This standalone software lets you flash firmware onto your V2.0 adapter. You will need this to update your adapter firmware. It is basically just a wrapper for "stm32flash 0.4" to make the process as simple as possible.
Click here for step-by-step instructions on reflashing your adapter firmware.
EM Firmware Flasher V1.0
Please ensure that you choose the correct adapter type and version before downloading!
Firmware Version Changelog
Input display works with the official 4-port GC->USB (Wii U) adapter (and other high poll-rate devices of ~1ms)
Minimum controller poll delay reduced to 1ms (from 1.5ms)
Input display works with the Mayflash 4-port GC->USB (Wii U/PC) adapter (and other higher poll-rate devices of ~5ms)
Bounds-checking is applied to calibrated controller joystick values (so they no longer wrap)
The OLED display turns off after a timeout period (default is 10 seconds, but adjustable between 3-30 seconds)
Master Quest button mapping fixed (N64 only)
F-Zero and Majora's Mask button mapping fix (they were swapped) (N64 only)
Ocarina of Time GZ mapping removed for versions with no N64 input (as identical to Ocarina of Time mapping) (GC+CC only)
Console response high/low timing adjustments
Initial firmware release