AM3358: I2C access from PRU

Borys Stoew

Part Number: AM3358

Gentlemen,

I am working on a BeagleBone Black whose PRU needs to collect data from 2 sensors: one via SPI, the other via I2C.
My BBB comes with a Debian 9.5.

I use that distribution's "TI pru-software-support-package", which allows one to compile C-code for the PRU using "clpru" directly on the BBB.

This package includes a very handy header file called
/usr/lib/ti/pru-software-support-package/include/am335x/sys_mcspi.h
It provides the entire register set for the McSPI, using structs and unions.

Could you please provide me with the corresponding file (or link) with the definitions for the I2C-peripheral's register space?

Much obliged, Borys

over 6 years ago

0 Biser Gatchev-XID over 6 years ago

TI__Guru**** 393215 points

Hi,

Debian is not supported by TI. It's a community effort, maintained and supported on www.beagleboard,org forums. Please ask there.

0 Borys Stoew over 6 years ago in reply to Biser Gatchev-XID

Prodigy 50 points

Thank you for your fast response.

Please ignore the Debian part - I should have placed it on the last line of my original message.

0 Nick Saulnier over 6 years ago in reply to Borys Stoew

TI__Guru** 100960 points

Hello Borys,

Please find sys_i2c.h attached. Note that we generated this particular file from the i2c register data back in 2016, so please double-check that everything is as you expect before using it.

Regards,

Nicksys_i2c.h

0 Borys Stoew over 6 years ago in reply to Nick Saulnier

Prodigy 50 points

Thank you Nick, this is precisely what I had in mind.

//b

0 Nick Saulnier over 5 years ago

TI__Guru** 100960 points

Update for future readers: If you are looking for other header files for the PRU (in the struct / union format), I attached all generated register sets to the post PRU Access to DMTimer.

Regards,

Nick

Processors

Processors forum

AM3358: I2C access from PRU