I2C with uPSD3212

igorl · ‎2004-04-13

Posted on April 13, 2004 at 10:43

I2C with uPSD3212

igorl · ‎2011-05-17

Posted on May 17, 2011 at 11:59

Dear all!

Can anybody help me? I tried to used I2C and came across with one problem: I set SII, then I set STA bit (start condition), then I load S2DAT register and it sends this 8-byte serie. But after it, both SDA and SCL are in ''0'' state, while they need to be at ''high-impedance'' state.

No device is connected to I2C from another side (uPSD3212 is the only device) and interrupts are disabled. Can we try I2C in such condition? Do you have any ASM-code exampple of I2C usage?

Thank you in advance.

joseph2399 · ‎2011-05-17

Posted on May 17, 2011 at 11:59

We are working to release a uPSD3200 I2C driver that will be made available on our website (target release is within a month). A notification will be made on the forum when it is available.

On a case-by-case basis, a beta version of the I2C driver will be made available. If interested in receiving a copy of the beta version, please send a request to

mailto:apps.psd@st.com

with the following information:

Name

Company Name

Phone Number

Location (City, State, Country)

uPSD part number of device being used (3234, 3254, etc.)

Application

Projected annual volume (units)

Regards,

uPSD Applications Engineering