I have take a look of the app note and build the circuit to connect the device to com port
But I failed to communicate to the device (e.g. can't read the device signature)
the message can't connect with specified baud rate appear every time.
I have check the P26 & P27 was in high level (4.5V).
& ALE is 1.55V which is assumed to be floating,
which should be rearching the requirment show in AN461.
I have attached the debug file.
Would anyone can give me some help on it please?
But I failed to communicate to the device (e.g. can't read the device signature)
the message can't connect with specified baud rate appear every time.
I have check the P26 & P27 was in high level (4.5V).
& ALE is 1.55V which is assumed to be floating,
which should be rearching the requirment show in AN461.
I have attached the debug file.
Would anyone can give me some help on it please?