On Wednesday, October 06, 2010 09:13:13 Drasko DRASKOVIC wrote: > do different cores inside same chip count as different parts ?
urjtag knows nothing of "cores". it only knows what devices report themselves via the JTAG scan chain. and that is dictated by the chip/board designer. > jtag> detect > IR length: 48 > Chain length: 7 you've got 7 devices and the IR length of each adds up to 48. i dont think there's any requirement that says each device must have the same IR length. but i could be wrong. > If they are defined as one part, how do we handle different > instruction length, because different cores within the same chip might > have different instruction length. if a device in the JTAG scan chain reports the same JTAG ID info but in reality has different JTAG command sets, then that is stupid hardware that you'll manually need to work around. -mike
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