Are they both "real" RS-232, both 5v ttl rs232, or hopelessly mixed?
On 2020-02-01 15:18, Gary Woods wrote:
On Sat, 1 Feb 2020 12:24:24 -0600, you wrote:
Hmmm. I do not have any of that equipment, but I do know the RS232
interface pretty well. It may be that you need to cross over the
connections with RX and TX. Do you have a null modem type device
handy?
The GPSDO says it only needs send and receive data; no handshake. I've
got a break-out adapter in the line passing only those and ground.
Reversing t/r doesn't help.
Gonna scope the interface chip's ins/outs, but right now the cellar
hamshack/shop/man cave is just too (*^&*%* cold!
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Dr. Don Latham AJ7LL
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