3V to 5.5V multichannel RS-232 line driver/receiver
3
votes
2answers
2k views
atmega 328 serial communication
I'm trying to get the atmega328 to communicate over serial port with my pc. I'm using hyperterminal to echo back the keyboard character entries. I'm using the max3232 chip to do the communicated with ...
2
votes
1answer
295 views
Crosstalk from RX to TX line on the RS-232 side of MAX3232C
We have a product which is using a MAX3232C for interfacing to a PC. Its RS-232 RX line is tied to the MAX3232's R1IN pin and its TX line to T1OUT:
The problem we are having appears to be some kind ...
1
vote
1answer
151 views
RS-232 Zero (-7V) drops when I connect db9 connectors
I'm interfacing with a system using RS-232. To communicate, I use MAX2322 for TTL <-> RS-232 to interface with PIC microcontroller and PL2303 for USB <-> RS-232 to interface with PC.
All of the ...
2
votes
1answer
214 views
Generating dual rail power from a MAX3232?
I've seen several electronics devices using MAX3232 or similar devices to generate dual rail power supplies. In my instance, I have 3.3V going in and need regulated ±5V outputs. I have three four ...
