LAUNCHXL-F28069M: 16x2 LCD display : How to recover from malfunction in 4-bit mode

Nantawat Thitichaiworakorn

I'm using LAUNCHXL-F28069M. I've got a source code for 16x2 LCD driver. It configures the LCD to operate in 4-bit mode. But I found that it malfunctions easily and very hard to recover, even power-on reset cannot solve this. I want to know how to recover it and why it is so difficult to recover.

over 5 years ago

0 Kevin Allen18 over 5 years ago

TI__Mastermind 45206 points

Hi Nantawat,

What LCD screen are you using? How are you interfacing with it (I2C, SPI, etc.)?

You'll likely have to refer to the LCD screen datasheet / documentation to understand how to properly interface with it. We can answer specific question about the F2806x device and its peripherals to help you if you have any, but we're not experts on whichever LCD screen you are using.

Best,

Kevin

0 Nantawat Thitichaiworakorn over 5 years ago in reply to Kevin Allen18

Intellectual 360 points

Hi Kevin,

I want you to see the following post. cb1 is an expert on LCD screen. Can you contact him to reply my post ? It will be good if he can reply my post.

e2e.ti.com/.../210923

Regards,

Nantawat

0 Kevin Allen18 over 5 years ago in reply to Nantawat Thitichaiworakorn

TI__Mastermind 45206 points

Hi Nantawat,

You can try contacting the community member directly using the "Connect" feature of the E2E forum.

As I mentioned if you have specific C2000 device questions I, or someone else from TI, can provide answers.

Best,

Kevin

C2000™︎ microcontrollers

C2000 microcontrollers forum

LAUNCHXL-F28069M: 16x2 LCD display : How to recover from malfunction in 4-bit mode