CC2538 I2C - how do i just send the slave address without data?

Ulf Knoblich

Other Parts Discussed in Thread: CC2538

Hi,

in order to poll if an external EEPROM has completed it's write cycle i just have to send the EEPROM's address without any data. Once the EEPROM has completed it's write cycle, it will respond with an ACK. How can this be performed with the CC2538 (which acts as the I2C master)? I have to

- Send a start condition

- Just send the EEPROMS address

- NOT send any DATA

- See if there is an ACK or not

Regards

Ulf

over 11 years ago

0 YiKai Chen over 11 years ago

Guru 735695 points

There is an I2C example in CC2538 Foundation Firmware. You can find it under C:\Texas Instruments\swrc271a\cc2538_foundation_firmware_1_0_1_0\driverlib\cc2538\examples\i2c after you download and install it.

0 Ulf Knoblich over 11 years ago in reply to YiKai Chen

Intellectual 415 points

Hi, but as far as i can see my problem is not addressed in this example. I also don't find any proposal in the CC2538's user guide...

0 YiKai Chen over 11 years ago in reply to Ulf Knoblich

Guru 735695 points

CC2538 Foundation Firmware only provides you basic example and you have revised it to fit your application by yourself.

0 Ulf Knoblich over 11 years ago in reply to YiKai Chen

Intellectual 415 points

OK, but that's only possible if i have the approriate information. As this procedure is not described in the CC2538 users guide i have no chance to find out what i have to do (besides of trial and error). Therefore your remarks don't help me.

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CC2538 I2C - how do i just send the slave address without data?