Ingo
I agree, that would be ideal.
The problem, of course, is that if the MCU never gets the TTL equivalent of
the ASCII request, it won't respond.
Hence the issue.
What I had hoped to find out is if there's any keyboard or other sequence
that would cause the K2 to send data autonomously ...
Steve,
If the problem is that you just don't want to change out the MAX1406,
there are 2 unused TX/RX sections in the implementation in the KIO2.
You just need to cut the traces to the in and out pins used and wire to
another pair of pins.
OTOH, just replacing the MAX1406 may be just as
Hello Steve,
It would be great if I could see if it worked "the other way" in other
words, if the K2 could somehow be made to send at least something out the
TX port without being prompted.
As you can see, because the KIO2 appears to not be able to send the
received data to the main MCU, I
My K2 #771 has a KIO2 that has no serial data output.
This appears to be due to a problem ... in the other direction.
I can see my inbound ASCII commands (e.g., FA;) at pin 6 of U1 on the KIO2
board.
However, the MAX1406 shows only rail at the corresponding TTL side.
I presume the MAX1406 has
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