Two LCD displays on Tiva

[axsdenied 0]

Hi

 

Has anyone successfully connected two TFT LCD displays to Tiva-C Launchpad? How much work would be to modify the graphics libraries to do so? Would two different LCD models be easier to do?

 

I am aware that parallel connection is probably not possible due to lack of pins.

 

Thanks for any suggestions.

[igor 163]

What kind of LCDs are you interested in?  Character mode LCDs - like those using the HD44780 and similar controllers should be no particular problem to do two at once.  (Actually some of the larger character mode LCDs behave like 2 separate displays, with two enable lines, you enable one line to write to certain rows of the display, and the other for writing to the other rows).

 

http://www.ekenrooi.net/lcd/lcd0.shtml#pin_assignment

 

There are examples/libraries for controlling these LCDs on Stellarisiti.  May require a little modification to deal with multiple enable lines.

 

I don't know as much about graphic LCDs.

[axsdenied 0]

Thanks for your reply. I am actually trying to get two graphical LCDs running at the same time.

 

By the way, I have found µLCD-32PT(SGC) which are serial controlled so interfacing two should not be the problem. But modifying libraries may be a bigger task...

[Rei Vilo 695]

This an old project but it still works. Have a look at the Serial_LCD Library Suite for 4D Systems μLCD-μOLED-μVGA.

 

It can drive 2 screens easily — http://embeddedcomputing.weebly.com/tutorial-6-driving-two-screens.html