LPC1114 works great, until CRP & UART

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by coryrc on Mon Nov 07 13:38:36 MST 2011
Hi All,

I have an LPC1114 running an application just fine without CRP enabled. Once CRP2 is enabled (using -flash-protect=2) the device functions normally (responds to discrete and analog inputs appropriately) until it receives a byte from the UART (or tries to respond), at which point it freezes. Receive and response does not involve anything other than the UART and memory accesses.

Same thing after a power cycle.

My understanding of CRP is it only affects external access to the chip. Is there something I am overlooking?