Hi, Joe

As DEFINEs write to special registers or PBP constants ... you could consider it's "a kind" of CON statement !!!

for values, a look to PBPxx.lib and the function listing could give you the value name ... in order you to change it.

For registers, It wil be much better to change their values Through assembler ( As DEFINEs do ...) : Addressing them directly ...

But Think to disable the concerned peripheral before any change ... or the mix might be funny ...

Alain