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On Wed, 17 Nov 2004, Michael Rinder wrote: > Hi, > > We are developing a new board based on TS20x, and we are adding JTAG > emulator support. > > We have a number of old emulators (Summit-ICE, Apex-ICE), As well as HPPCI > ICE. > We would like to know if anybody has experience getting an old emulator to > run with a new design. > -Is it possible? > > We want to be able to use BTC on HPPCI-ICE so we need the new HW-design > > Older versions of EE-68 Analog Devices JTAG emulation techical reference > contain info regarding the differences in the interface between legacy and > high-speed (Newest version doesn't contain info about legacy settings). > The differences are minor (pin 4 only?) pin 4 used to be a clock. Leave it disconnected and you'll be fine. The software that runs the JTAG commands is all that has to change, the connections should be similar. In theory, it is supposed to run at any speed, so the slower devices should work. But they still have to send the right data to right places. Patience, persistence, truth, Dr. mike |