i recently bought a dragon for debugging, including externally powered usb hub, a few cables and now i want to make a buffer with 74hc08 from Plons site
What i don't get is the point of wiring target jtag, spi and debugWire pins together, i mean, what is the purpose of dragon spi pins then, if it can stay unconnected and we can drive target spi with dragon jtag?
I found some more information, including this
, but it didn't get clearer.
And also it seems that info about dragon is pretty scarse.