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Topic: TLC5955 experience request (Read 613 times) previous topic - next topic

phillysteak527

Hello all

I'm trying to use 4 TLC5955 LED drivers in a project and cannot for the life of me get any outputs working. I've used a logic analyzer to ensure the data stream is correct and i suspect that my issue lies with the GSCLK line. I was hoping that someone on these forums has tinkered with this chip before and could potentially share some wisdom.

My basic program attempts to do the following:

initialize:
Send single control Bit
Send DC/MC/BC data (96 Bytes)
Pulse Latch

Turn on display:
send single control Bit
send GS data (96 Bytes)
Pulse Latch

I'm still a tad confused if I need to send the data twice before pulsing the latch to write to the chip. Any feedback is greatly appreciated.

Grumpy_Mike

#1
Jun 25, 2015, 09:43 pm Last Edit: Jun 25, 2015, 09:43 pm by Grumpy_Mike
Please read this:-
How to use this forum
Then you will know how to post your code and that you have to include a schematic ( not a physical layout diagram )

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