RoboticsConnection User Forum / Serializer Robot Controller Support / RoboticsConnection Hardware Support / I2C address format / Latest Posts

RE: I2C address format

ringo — Thu, 24 Apr 2008 15:06:19 GMT

I'm going through the data sheet now, but 1 thing I notoced is that the device will respond to an address of 0 (general call), have you tried that?

Ringo

Cheeter — Thu, 24 Apr 2008 14:19:06 GMT

Hi Ringo,

Any suggestions?

Cheeter — Tue, 22 Apr 2008 19:15:58 GMT

Thanks Ringo.

The controller board is here:

The datasheet of the Trinamic TMC222 is here:

I'm sure I'm just missing something obvious.

ringo — Tue, 22 Apr 2008 16:46:32 GMT

what device is it? I can take look at the data sheet and see if I can help.

Ringo

Cheeter — Tue, 22 Apr 2008 16:09:26 GMT

I have a I2C devive that I'm having trouble setting up communication. The manufactures says the following in one place:

"The address for unprogrammed OTP is 1100001 or 1100000. The LSB is set by the pin HW."

And then gives this example in another place for changing the OTP:

"0xC0(slave address);0x90(setOTP Parm);0xFF;0xFF;0xFA(OTP Address);
0x01(new address);

So far all I get back is NAKs. What do you think I should use for the address?

I2C r/w XX?