TMDSIDK437X: BiSS PRU demo on IDK AM437x

inno

Part Number: TMDSIDK437X

Hi,

I am working on adding BiSS capablity to our product , and have decided first to see how it works on the IDK AM437x

I am following the document

I have downloaded the pru0_BiSS.p file as well is the associated includes , and create a project on CCS (Version: 10.1.0.00010)

when I try to build the project I get the following error

can you help me understand what is wrong ? which input file is missing ?

over 4 years ago

0 inno over 4 years ago

Expert 1700 points

maybe it is looking for a C file ? How to I ask it to build with the PASM file ?

0 inno over 4 years ago

Expert 1700 points

any ideas ? maybe you can provide me with the PASM.exe utility that can compile the *.P file as described at tidu749a design document ? seems that what available @ github is old and will not run on win64 machine

0 Nick Saulnier over 4 years ago in reply to inno

TI__Guru** 101650 points

Hello inno,

Yes, .p files are for the PASM compiler. CCS is trying to use the PRU CGT compiler, which will not work with PASM files. TI does not support PASM any more.

This thread has suggestions for options you can take to get the BiSS code working:
(+) Can't compile BiSS Firmware for PRU ICSS using PASM - Processors forum - Processors - TI E2E support forums

FYI for future readers: you can find the BiSS code we are talking about with these steps
1) go to the TI design at TIDEP0022 ARM MPU with Integrated BiSS C Master Interface Reference Design | TI.com
2) Open "Test Data" - this is actually the "BiSS-C Interface Master Design Guide" in disguise
3) Go to section "Software Files"
4) from there you find the link www.ti.com/.../tidc920

Regards,

Nick

0 inno over 4 years ago in reply to Nick Saulnier

Expert 1700 points

Thanks for pointing this out.

One of the options discussed in the thread ( option 3) is to migrate the code to thr nee compiler. Its a very old post.

I am wondering if there is sn updated biss demo i can test?

Is there any other way to build pasm files? Even outside ccs?

0 Nick Saulnier over 4 years ago in reply to inno

TI__Guru** 101650 points

Hello inno,

TI has not rewritten the BiSS PRU firmware. Third parties may have implemented it as well, I am not sure. It looks like you can still find pasm compiler and documentation at this link from the thread in my previous response:

GitHub - beagleboard/am335x_pru_package

Regards,

Nick

0 Nick Saulnier over 4 years ago in reply to Nick Saulnier

TI__Guru** 101650 points

Hello inno,

Following up: Looks like BiSS was implemented by CouthIT. See app note Industrial Communication Protocols Supported on Sitara Processors:

https://www.ti.com/lit/sprach6

Regards,

Nick

0 inno over 4 years ago in reply to Nick Saulnier

Expert 1700 points

thanks