Common target connection and JTAG problems

Initial connection problems

You are having problems when trying to establish a JTAG connection to your board.

"Cannot identify target" error message
"Cannot set debug register" error message
"Target not responding" error message
"Cannot set USB configuration" error message
"Cannot claim USB interface" error message

Connection problems when programming or debugging

You have connected and identified your target proceessor, but have trouble downloading a program.

"Cannot stop CPU" error message
"Cannot set debug register" error message
"Write to ARM debug port timed out" error message
"Cannot halt target after reset" error message
"Loader has not iniitialized correctly" error message
"Loader is not a LIBMEM RPC loader" error message
"No driver installed for memory range" error message
"Set parameter operation failed" error message

Resolving connection problems

How to reduce the JTAG TCK frequency
How to set up Linux for USB JTAG adapters
How to route JTAG reset signals on ARM