On November 5, 2023 at 19:42, **SysTech_Larry** said...

I found a device where my given map is inverted.

When my map is correct, EFC 00000 produces IR hex 9D (OBC 157).

When the inverted map is correct, EFC 00000 produces IR hex 62 (OBC 98).

You can convert MY EFC to its inverted value using the following formula:

AltEFC = (199 - MY EFC) mod 256

In Excel, AltEFC = MOD(199 - MY EFC, 256)

The easier solution (for some) would be to bit-flip the IR hex# (FF - IR#) before using my map.

Using the above numbers, FF - 9D = 62.

(All math is in hex.)

*Last edited by SysTech_Larry on November 7, 2023 04:45.*