Content originally posted in LPCWare by miccio on Thu Dec 17 06:35:59 MST 2015
It is a fairly old (therefore know, i'd assume) bug, but you can find these (and other) functions in the LPCOpen version issued with the AN. Just look at "/AN11538_v4.0/code examples/LPC15xx/LPCOpen/software/lpc_core/lpc_chip/chip_15xx/"
I found slight differences in several files, so I would recommend to run a diff on the whole folder and check whether it's worth to **upgrade**.
On a side note, the syntax becomes preeeeetty verbose with those function, so manipulating the registers directly isn't so bad ;)