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Altera_Forum
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15 years ago

Target is broken and needs to be reset

Hi guys, I have an issue with NIOS II (using Quartus 9.1, Stratix III, Micron LPDDR2). Altera doesn't have built in support for Micron LPDDR2 which uses 10-bit Cmd Address instead of RAS, CAS, ...
Altera_Forum's avatar
Altera_Forum
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15 years ago

"Target is broken" normally means that the processor did not go into debug mode when it was asked to (by a JTAG transaction).

When it is triggered by JTAG the processor finishes the current instruction and then goes into debug mode.

If the current instruction is a read from memory which is wait stating for ever then the current instruction will never complete and you will get this message.

Please try inserting a JTAG avalon master into your system, since that only reads when you ask it to you can arrange for it not to read any memory areas which might be broken. Alternatively SignalTap might help