EVM430-FR6047: LCD display

Stephen Allen99

Part Number: EVM430-FR6047

I am running the vanilla code on EVM430-FR6047 board. I do not have it connected to transducers yet, but expect to see activity on the LCD display. I've tried pressing all five buttons, but nothing seems to be happening on the board. Questions:

- do I need transducers to see something on LCD?

- Which way to turn the potentiometer (CW, CCW) for maximum contrast?

over 6 years ago

0 Eddie LaCost over 6 years ago

TI__Mastermind 39690 points

Hello Stephen,

The LCD should turn on when the top button is pressed. I just tested and it does still turn on even without transducers connected. See section 9 of the users guide below for LCD operation details. If it is not turning on, you may have a bad switch on the board. Try again and let me know the outcome.

www.ti.com/.../slau720b.pdf

0 Stephen Allen99 over 6 years ago in reply to Eddie LaCost

Intellectual 490 points

I've pressed the BUT_UP, and the LCD does not come on. I've verified the button is working (shorts when pressed), and verified that the trace connects to pin 30.

Looking for more options to get the LCD working.

0 Eddie LaCost over 6 years ago in reply to Stephen Allen99

TI__Mastermind 39690 points

Stephen,

Are you using the default code that was loaded on the board when purchased? It should work with this code, but you may also want to try re flashing the board. You can find the firmware below. Be sure that you are using the demo application from the link below as well. You will need the USSLib + demo application.

0 Stephen Allen99 over 6 years ago in reply to Eddie LaCost

Intellectual 490 points

I'm not using the default code because when trying to import, I would get "failure to import meta-data". Problem described here: e2e.ti.com/.../2703126
I was sent a new project which I was able to import fine.

I have archived my project and sent to my partner (who has the same board), and the LCD works on his. So, same code, works on his, and not on mine. It must be some hardware issue. I have ordered a replacement board, and now consider this issue resolved.

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EVM430-FR6047: LCD display