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I was using the atmel sam7x-ek for developing and now have the first proto board cut, which is using a SAM7XC type chip. I can use SAM-BA and SAM-PROG through the DBGU and USB connection, but not through SAM-ICE JTAG.
As soon as I try to connect to the target, the SAM-ICE LED goes red for a few 100 ms, then starts flashing very fast. No connectivity.
I have tried
-3 different SAM-ICE devices
-Different computers
-Different software versions of Sam-ba and Segger/JLINK (latest is Segger=4.10i Atmel=1.13patched)
-Copied the JLinkARM.dll into sam-ba's library folder.
-looking at the JTAG pins through a logic analyzer, according to Seggers manual troubleshooting section - everything looks fine
I can't get it working.
I can access the chip fine through the SAM-ICE with JLink utilities like J-Mem, so I am pretty positive its not a hardware issue.
When calling samba from the command line and dumping the output, it reveals that it fails because the chip id is unknown (read 0x0012ed84 at 0xfffff240). When I check that memory location through j-mem, it lists 0x271b0940 which is the correct number. So why can't sam-ba read that correctly??
I e-mailed Segger but they haven't responded so far.
Does anyone know what I need to do? I bet its some simple solution of copying some DLL from a to b.
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