NHD-0216AW-IB3 I2C help

sweit

Hello,
I'm trying to interface an NHD-0216AW-IB3 to a dsPIC30F4013. This is the first time I've ever used the I2C interface and I have a question. In the initialization, do I need to send a start and stop condition before every command and data byte? Also, do I need to send the device address before every command and data byte?

Thank you,
Steve

0

Comments

1 comment

Date Votes
  • Saurabh_B

    Hello,

    You would only need to send the start condition once, and you would only need to send the address once after this start condition.

    You will however need to send a "command byte" between each data byte sent. I would recommend looking at Figure 5-7 of the Controller datasheet.
    This can be found on page 11 here: https://newhavendisplay.com/content/app_notes/US2066.pdf 

    This command byte would need to be sent between any instruction/data byte sent to the display, and it allows you to change the D/C# bit which determines whether the following byte that follows will be used as data or an instruction.

    0

Please sign in to leave a comment.

Didn't find what you were looking for?

New post