Forums

I2C, C6713 and problem with XRDY

Started by amar...@disca.upv.es April 26, 2008
Hello,

I'm trying to connect my TMS320C6713 to an lcd display by means of I2C. I have tried with several codes (found in this forum and by myself) and I always get the same problem: after sending the first data byte, the xrdy bit remains 0 for ever.

Could anybody help me?

Thanks,

Toni.
Toni,

On Sat, Apr 26, 2008 at 10:26 AM, wrote:
> Hello,
>
> I'm trying to connect my TMS320C6713 to an lcd display by means of I2C. I
> have tried with several codes (found in this forum and by myself) and I
> always get the same problem: after sending the first data byte, the xrdy bit
> remains 0 for ever.

Are you using a DSK or a custom board??
Have you verified the presence of clock??
Are you using polling??
Have you referenced spru175?? especially the flowcharts
Do you know for sure that the first byte was transmitted??

mikedunn
>
> Could anybody help me?
>
> Thanks,
>
> Toni.
>

--
www.dsprelated.com/blogs-1/nf/Mike_Dunn.php
Thank you very much for your help, Michael.

I tested the data line and there was no data, because I had a shortcut between data line and ground. Now, all is working fine.

A lot of times the answer hides in the proper question.

Thanks again,

Toni.