TMS320F28379D: Max LSPCLK

Mark Feller

Hello,

I am so far not finding it in the datasheet: is there a limitation on LSPCLK setting that I need to be aware of, particularly when using SPI and SCIA?

If I set LSPCLK = SYSCLK / 2, can I use LSPCLK = 100MHz, are there any issues?

Thanks!

over 1 year ago

0 Prarthan Bhatt over 1 year ago

TI__Genius 16376 points

Hi Mark,

This information is provided in datasheet. Attached snapshot below
Let me know if you have any further questions

Thanks,
Prarthan

0 Mark Feller over 1 year ago in reply to Prarthan Bhatt

Expert 1220 points

Thank you Prathan,

Part of my question...is there any issue for SPI or SCI to use faster LSPCLK?

The examples seem to use lower / default values, so I want to make sure it isn't a limitation of the SPI or SCI.

Thanks,

Mark

0 Prarthan Bhatt over 1 year ago in reply to Mark Feller

TI__Genius 16376 points

Hi Mark,

Yes there are limitations on max frequency from SPI or SCI perspective.

You can check the electrical specification section 6.12.5.1 SPI Electrical Data and Timing for different SPI modes and see if you have more questions so that we can seek help from SPI/SCI expert

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TMS320F28379D: Max LSPCLK