Page 1 of 1

RS232 Driven True vs Driven Inverted

Posted: Wed Aug 15, 2012 8:26 pm
by SaintAero
I'm using a PIC16F688 with PICBASIC PRO Compiler to run a LCD2041 rev 1.5.
The RS232 TX output from the PIC is wired directly to the power connector pin 3. The 3 TTL connections are soldered closed. J3 is jumpered for 9600 baud, and the RS232 jumpers above the DB9 are installed.
This works fine as long as I set the RS232 output to "Driven True" (T9600 in PICBASIC)
Is there a method to run the LCD using RS232 "Driven Inverted" (N9600)?

Re: RS232 Driven True vs Driven Inverted

Posted: Thu Aug 16, 2012 7:47 am
by Raquel
Hi Don,

Thank you for posting on the forum.

Unfortunately no, there is no way to communicate with the display using inverted serial data.
It is a neat feature found on some micro controllers that offer enhanced USART, but unfortunately the LCD2041 does not have this capability.

Best Regards,