Andy Green schrieb: > |>> ... but > |>> what we need is the FTDI chip on there with USB connection of its > own to > |>> drive the CPU JTAG and provide console. > |> Yup. I don't think we want to invent any new debug connector. If > |> there's anything else we need, we're better off if this goes to > |> test points and then a fixture. > > OK. > > | Just for he cnvenience of our sw-engineers who are going to use this > | thing as a evaluation board eventually, I think we have to find at least > | one method to do flash and JTAG, that's not involving a fixture. > > Yes it is even part of the spec to allow flash and JTAG from this > secondary USB connector via FTDI chip. So we should focus on proving > this working and then using it ourselves for validation of the prototype > and also production test.
Fine. So I should learn about this FTDI thing, I never seen any circuit diagram nor any datasheet nor detailed descriptions on the way it works. Probably should try to find me a debug board for my GTA02 anyway ;-) For now it doesn't seem to me like this spec to have FTDI for 04 is widespread common knowledge. BTW: what exactly are the specs of GTA04, or more exactly where to find them - wiki? What i find here is quite bare. E.G LEDs - nr of, color etc. cheers jOERG
