I2C Interface in C+

[Don]

I have a LK202-25 display that I plan to interface on a I2C bus through a C+ application. Is anyone aware of some sample C/C+ code to demonstrate how to do this?

Thank you.

[Raquel]

Hello Don,

Here are a couple of forum posts with I2C sample code:

http://lcdforums.com/forums/viewtopic.p ... 1e1e#17470
http://lcdforums.com/forums/viewtopic.p ... 1e1e#16607

I hope these help,

[Don]

Hello Don,

Here are a couple of forum posts with I2C sample code:

http://lcdforums.com/forums/viewtopic.p ... 1e1e#17470
http://lcdforums.com/forums/viewtopic.p ... 1e1e#16607

I hope these help,

Hi Raquel, can I step back for some "basic" instructions? I see that the default I2C slave address for the LK202-25 is 0x50. I am new to I2C protocol, but isn't there usually some type of DMA data buffers when communicating with devices? I don't see this documented.

Can you show me an example (after the I2C bus has been properly initialized) how do I write "Hello World" to the display?

Thank you.

[Jon]

Hi Don,

Have a look at this page:

http://www.matrixorbital.ca/appnotes/i2c/

let me know if this helps.

--
Jon

[Don]

Hi Jon, I did take a look at this page before I made my post. I am looking for documentation beyond the LK202-25 Technical Manual, or a simple "Hello World" example to write to the display.

--
Jon[/quote]