What is required for "live" logs?

Victor Kazmirenko

Hello!

I am DSP/BIOS user and now finding my way with SYS/BIOS as we plan to switch on C6670.

One issue we are fighting right now is logging. What we want is to have functionality equivalent to LOG_printf() of DSP/BIOS. I mean ability to log from any thread, including HWIs, and "live" update of log console in CCS. By "live" update I mean that we don't have to halt CPU, so it continues its realtime operation while logs get updated.

If above requirements is possible, please give me a checklist of settings and/or components to take a look, so I can study specific parts of the documentation.

Thanks in advance.

over 11 years ago

0 Emmanuel Trinidad - Alicea over 11 years ago

TI__Genius 10260 points

Hi,

I don't have a solution of the top off my head, so let me ask around and I will get back to you. Are you using the latest version of SYS/BIOS (6.35.04.50) and CCS (5.5.0)?

Thanks,

-- Emmanuel

0 Victor Kazmirenko over 11 years ago in reply to Emmanuel Trinidad - Alicea

Guru 13202 points

Hello!

Yes, I am using latest BIOS and CCS at the moment. We are at early stage of development. so updating does not make serious problem.

0 Emmanuel Trinidad - Alicea over 11 years ago in reply to Victor Kazmirenko

TI__Genius 10260 points

Hi,

The "live" update of logs on the console was enabled by RTDX. Unfortunately, support was removed in SYS/BIOS 6.33. However, System Analyzer and Unified Instrumentation Architecture (UIA) software feature several tools and loggers to enable data collection and benchmarks.

During code execution, log statements embedded in your coded will be appended to buffers within the Logger. A task (commonly the idle task) must then send the logs to the transport interface (UART, USB, Ethernet, etc.).

Below are a couple resource I think might help along:

System Analyzer User's Guide: http://www.ti.com/lit/ug/spruh43e/spruh43e.pdf

Multicore System Analyzer Wiki: http://processors.wiki.ti.com/index.php/Multicore_System_Analyzer

Multicore System Analyzer Tutorials: http://processors.wiki.ti.com/index.php/Multicore_System_Analyzer_Tutorials

UIA Software Download: http://downloads.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/uia/1_03_01_08/index_FDS.html

Thanks,

-- Emmanuel

0 Victor Kazmirenko over 11 years ago in reply to Emmanuel Trinidad - Alicea

Guru 13202 points

Hello,

UIA seems to be what I was looking for. I have followed instructions in UIA UG and being able to see "live logs". Thanks. Just in case isn't there any real time restrictions, like do not call Log_print from SWI or HWI?

0 Emmanuel Trinidad - Alicea over 11 years ago in reply to Victor Kazmirenko

TI__Genius 10260 points

Hi,

You can use Log_write within Hwi's & Swi's. Just keep in mind that logging within a Hwi/Swi does affect performance. Logs should be disabled for optimal performance.

Thanks,

-- Emmanuel

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What is required for "live" logs?