Part Number: TM4C129XNCZAD
Dear Sir,
Using reference design TM4C129X Development board we have prepared the our own design custom board.
We are using Keil uvision version MDK 4.72 for development.The Ulink2 debugger is displaying in Keil but we are not able to program custom board. We are getting error "cant access memory" or
"M cortex device could not stop". What is an issue?

We are able to program the TM4C129x development board using keil compiler +ulink2.
Also attach the schematic for referenceSchematic TM4C129X.pdf