I2C Programming Details (STPC - Elite)

murphyn · ‎2003-08-15

Posted on August 15, 2003 at 09:03

murphyn · ‎2003-08-05

Posted on August 06, 2003 at 08:29

Dear fellows,

I've been looking around the datasheets for the STPC Elite for details on the I2C port. In the Datasheet for the Elite it references port 22h/23h index 97h, although it says nothing about which bits do what. Had a quick look at the other datasheets including the programming datasheet but to no joy! Anyone know how to program the i2c interface?

MurF

moedeker2 · ‎2003-08-07

Posted on August 08, 2003 at 04:11

Hi MurF,

please have a look at

http://www.stmcu.com/forums-cat-471-6.html

Benno

thierry239955_st · ‎2003-08-12

Posted on August 13, 2003 at 07:12

The i2c port of the STPC Elite is a rest of the DDC lines from graphics part of the other STPCs. This DDC lines are part of the VESA standard to communicate with the screen but you can re-use it for your own purpose.

It is a software based i2c and you can find source code to drive this 2 lines in the STPC kit.

Farfalla

murphyn · ‎2003-08-15

Posted on August 15, 2003 at 09:03

Thanks Farfalla/Benno2, got it workin I think, can write 1 and 0 out, havent tried ready yet.

Ta. MurF