Content originally posted in LPCWare by Nathael on Thu Feb 05 17:29:37 MST 2015
Hi,
I did not come back sooner but the 2.1 version of the LPC1224 reference manual includes an errata which states that Brown-Out detection must be powered to operate the ADC.
See Section 19.2 of UM10441 revision 2.1 or newer for more information