LAUNCHXL-F28069M: I2C comms with arduino

Marcin Chojnacki

Part Number: LAUNCHXL-F28069M
Other Parts Discussed in Thread: MOTORWARE

Hi everyone.

I'm working on a flywheel inverted pendulum project using F28069M. I need some advice and help on how to establish I2C communication with Arduino. I've been working on a IMU sensors using Arduino and i'd like to send already processed angle value form it to F28069M board using I2C. I assume, since that my ino is already communicating with gyro(MPU6050) via I2C i need to set texas as another slave device? Do you have any code examples or any tutorials on it?

Thanks for help.

over 5 years ago

0 MatthewPate over 5 years ago

TI__Guru 74400 points

Marcin,

You can find an example of I2C comms from the F28069 to a EEPROM here: http://dev.ti.com/tirex/explore/node?node=ADtRnPqp7jfk-GtqVYDM8g__gYkahfz__LATEST

There is also a community written I2C to LCD screen driver for this device here:

https://e2e.ti.com/support/microcontrollers/c2000/f/171/p/824689/3051838#3051838

I think these should get you on the right path to get the C2000 and Arduino communicating across I2C.

Best,

Matthew

0 Marcin Chojnacki over 5 years ago in reply to MatthewPate

Prodigy 110 points

Thank you Matthew for your reply.

I've seen these before but all these treat launchpad as master device and i find it hard for me to understand :). I just need some advice on how to set launchpad as slave with specified adress and make it receive some string type data. Also how to incorporate this in motorware project.

Thank you.

0 Kevin Allen18 over 5 years ago in reply to Marcin Chojnacki

TI__Mastermind 40135 points

Hi Marcin,

We unfortunately don't have any slave device examples/software to look at.

If you're only planning on receiving data you can configure the device as a slave receiver with a unique slave address. Depending on what your application is you'll likely need to develop some form of protocol for the data you send/receive.

You can check the I2C functions in the code provided in the below thread. Not sure how helpful it'll really be however, since they're meant for a master device by default. The read functions may be useful however!

https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/773846

Best,

Kevin

C2000™︎ microcontrollers

C2000 microcontrollers forum

LAUNCHXL-F28069M: I2C comms with arduino