SO i bought a EB-85a and i hooked it up directly to my serial port on 5v. and i get nothing. I don’t receive errors when i open the software, but i also don’t receive data. running hyper terminal gives me some weired sets of characters every 5 seconds or so. Anyone know if this is becasue i don’t have a serial buffer. do i need to have the max232 chip for the 3v logic? or should me serial port be able to read it directly as it is?
Thank you anyone who can help!
-chuck
You DEFINITELY need a max3232 for line level shifting.
You may have burnt out your EB-85A :/, as the RX pin doesn’t like the -9/+9V on the serial port.
Cheers,
–David Carne
i did not just hear that! “lalalalalala”
heres hoping for the best!
busonerd:
You DEFINITELY need a max3232 for line level shifting.You may have burnt out your EB-85A :/, as the RX pin doesn’t like the -9/+9V on the serial port.
Cheers,
–David Carne
the TTL on the eb-85a is 3.3v and 5v
I was under the impression the RS232c was up at ± 12V?