Purepath bridge protocol (i2c out without xmos)?

Hi David,

I don't think we have any public API for PPC3. I'm not sure I understand what is your need? Is your requirement a small form factor board for USB to I2C? 

Brian

cirrus logic has a nice bridge api so you can tunnel your i2c commands over usb or bluetooth

in my case I just don't want a big EV-kit on my board. rather just send the i2c commands over my usb-cdc that is tied to my mcu on my board

Texas Instruments please add an option to PPC where you can connect to a network socket.

like localhost:8888 and then whatever command generated in PPC, i.e. i2c would just be passed to that socket

then it's easy to make a python-script to take and tunnel those to your product/DUT

David,

Thanks for the details. In some cases we have the ability to enable in-system tuning where the customer can tune a smart amp with their own hardware and PPC3 (for example, if your system is Android based).

If you give me more details about what TI device you are using, etc... I can check with our software team what is possible. Would need to understand what host you will communicate with over the USB or bluetooth tunnel, is it part of your end-product or a prototyping setup or something else? A block diagram would be useful. 

If you don't want to share information on this forum we can move to email.

Brian

hi

we can write the host code and bridge, no problem

just need a way out from the pure path app

ie a local pipe, socket or similar so that we can capture the commands. then our bridge will do the rest

option 2, leas optimal since more work would be if you can share the source code for the xmos receiver part. then we can just implement the same usb descriptors and mimic an evb to trick ppc

Ok, I will discuss with our software team to see what we can enable, it's a good suggestion.

What TI devices are you needing to control?

Brian

thanks brian,

simple and universal. happy to share the python portion if you can have the ppc team offer a 2-way socket for the command-pipe

devices tbd, but prel. TAS5828M

note that with this solution we can support any device as it's just a matter of bridging i2c commands

Hi,

Thank you for your patience, please allow Brian some time throughout the week to provide an update.

thx!