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Hello MBED people, Could you help me on an RS232 comms issue please?
I’m trying to connect a MAX233 TTL-RS232 converter to pins 9 & 10. I notice that the MAX233 is a 5v device but I see on general forums that it can be used with 3.3v logic as long as the Vcc is tied to 5v. So naturally I tied this to pin 39.
I chose the MAX233 because it is a DIL chip and doesn’t require additional capacitors.
I can’t seem to get it running.
Can anyone give me some ideas please on how I might get it running, does anyone have a known-working schematic? Is the MAX233 capable of running on MBED?
Thanks
Craig