CCS/TLC5926-Q1: Using SPI unit for mode switching

Juris Sirs

Intellectual 320 points

Part Number: TLC5926-Q1

Tool/software: Code Composer Studio

Do anybody have an idea how to make Mode Switching by using SPI peripheral unit for TLC5926-Q1?

over 6 years ago

0 Charles-Chen over 6 years ago

TI__Genius 11836 points

Hi, Juris,

Why do you want to make Mode Switching by using SPI? Is there anything special in your application? When a one-clock-wide pulse of OE(ED2) appears, TLC592x-Q1 enters the two-clock-period transition phase, the Mode Switching phase. Please refer to datasheet page 18.

0 Frank Qiu over 6 years ago

TI__Genius 15776 points

Hi Juris,

You can find function mode within datasheet page 15-19 .

We suggest you to use IO interface to simulate High/Low level.

0 Juris Sirs over 6 years ago in reply to Charles-Chen

Intellectual 320 points

Thank you, Charles,

In dynamic display the communication is intensive and time slot sensitive. Sometime I should adjust a brigtness. Therefore I would like escape to switch ports from SPI to I/O mode and back. I can't find a right way to synhronize OE and LE with SPI clock.

Best Regards

Juris

0 Juris Sirs over 6 years ago in reply to Frank Qiu

Intellectual 320 points

Hi, Frank,

Actually switching to I/O mode is not preferable solution, please look on my answer to Charles Chen1. But it seems I should to optimize my application to use I/O for Mode Switching.

Thank you and Best Regards,

Juris

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CCS/TLC5926-Q1: Using SPI unit for mode switching