c6748 = 456MHz, OMAPL138 456MHz, OMAPL138 SOM-M1 300MHz, eXperimenter 300MHz Roadmap ?

barry mohan

Other Parts Discussed in Thread: OMAPL138

Hi E2E'rs

There's probably a page detailing this however ..... I can't find it..

If the c6748 & OMAPL138 are capable of running at 456MHz what is limiting the OMAPL138 SOM-M1 from running at that speed ?

If the limitation is related to the usage of revision 1 OMAPL138 silicon is there a roadmap showing

1 : What additional revisions are available for the OMAPL138. What is the operating speed for each revision, any limiations?

2 : If new revisions of the OMAPL138 are available running at 456MHz are these to be incorporated onto OMAPL138 SOM-M1 - if so roadmap and limitations ?

3 : From what I have been able to ascertain the 24khz oscillator on the eXperimenter board would not be appropriate to provide a 456MHz core clock that was within timing requirements. Is this board to be re-vamped to support higher speeds ?

4 : If a 24MHz oscillator is not appropriate for a OMAPL138 running at 456MHz what should be used ?

Barry

over 14 years ago

0 Loc Truong over 14 years ago

TI__Intellectual 2620 points

The Linux SDK comes with 300MHz as the default settings but you can change the speed at boot up (requiring AISgen tool) or in run time. AISGen package info is at http://processors.wiki.ti.com/index.php/Serial_Boot_and_Flash_Loading_Utility_for_OMAP-L138

To change the speed in Linux refer to http://processors.wiki.ti.com/index.php/OMAP-L1_Linux_Drivers_Usage#Power_Management to change the frequencies.

0 barry mohan over 14 years ago in reply to Loc Truong

Intellectual 580 points

Thanks LOC

Guess the eXperimenter baseband board needs a layout change to support higher frequency operation of the OMAPL138 (456MHz) - to keep witin timing specfications. Very useful links much appeciated.

Barry

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c6748 = 456MHz, OMAPL138 456MHz, OMAPL138 SOM-M1 300MHz, eXperimenter 300MHz Roadmap ?