I am trying to drive an STA013 from an ATMEGA128. I cannot get the device DATA_REQ to go high once it is initialised, in fact it appears to be floating which is not what id expect.
I have double checked all hardware and connections, crystal etc. I have verified that the initialisation is being written properly by reading back after every byte sent and I have swapped STA013s. Still not going. Any ideas?
STA013 problem
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