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TLC5925 Flickering

Alfonso Desiderio
Prodigy 30 points
Other Parts Discussed in Thread: TLC5925

Hello,

I have a problem with a board tha uses 2 TLC5925 cascaded.

Once I program a Word inside the components, LEDs that should stay ON start Flickering.

I'm pretty shure this defect not to be Hardware responsibility because schematic has been copied from another board that actually works fine.

I can say the same about firmware because i tried an application that sends two words on SPI and then stops transmitting for few seconds. Flickering event happens during this non transmission period.

Have you ever had notice of similar behaviour from someone else?

what do you suggest to do to fix the issue?

 

Thanks,

Alfonso Desiderio