EVM430-F6779: Doubt in programming of ports

Avinash B

Part Number: EVM430-F6779
Other Parts Discussed in Thread: MSP430F67791A

Hello,

I was working on the program generated using the energy measurement design center and tried compiling it in ccs. I didn't understand how the lcd is being programmed as I couldn't see any values being fed to the lcd. I did find lcd programs in driverlib folder but these seemed to be the initializations of lcd i.e to enable lcd and defining lcd functions (isn't it ?).

So what my point is that I actually don't want this 160 segment lcd for my application and would using a 16x2 lcd for my application. I did try programming this 16x2 lcd separately and the lcd did work in that way but when I tried to compile both programs, the lcd is not working (I guess mainly because different type of port initializations ?). How should I create an output port in this case and turn an LED ON just for example to understand?

Also I tried the emdc software by ti but it was not able to show and evaluate results but HID bridge showed 'connected' message.

Attaching my evm programs.

Thanks

Avinash

Custom_EVM430_F6779.zip

over 2 years ago

0 Xiaodong LI over 2 years ago

TI__Mastermind 20025 points

Hi Avinash

I am not familiar with 2 X16 LCD. Could you please help to share the spec of the LCD you selected?

This thread is related with 2X16 LCD driving. Hope you can solve your question based on the infromation on this thread.

Thanks!

0 Avinash B over 2 years ago in reply to Xiaodong LI

Prodigy 140 points

Hello,

I did interface 16x2 lcd the same way as the one shared by you, with my msp430f67791a controller but when I generate code using emdc software for my evm430-f67791A then my I am not able to understand how to combine both these programs instead of 160 segment lcd program generated with emdc.

Also I am talking about the following 16x2 lcd.

Thanks

Avinash

0 Keith Barkley over 2 years ago in reply to Avinash B

Guru 35660 points

This does not help, we need to know how this LCD interfaces to the computer:

Serial? I2C" SPI? Hitachi chip?

0 Avinash B over 2 years ago in reply to Keith Barkley

Prodigy 140 points

Hello,

LCD is serial interfaced in 8 bit mode by enabling port 9 pins for LCD D0-D7 pins and 3 pins of port 10 for Reade, write and enable function.

Thanks

Avinash

+1 Avinash B over 2 years ago in reply to Avinash B

Prodigy 140 points

Hello,

Since the EMDC code might be wrt the 160 segment LCD display but in my work I don't want to use this LCD display. How can I remove those Port initializations which were used for this? I cannot find any LCD port initializations in program.

Thanks.

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EVM430-F6779: Doubt in programming of ports