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hexel2
hexel2
Associate II
August 1, 2016
Question

Interfacing STLED316 with Atmega

  • August 1, 2016
  • 1 reply
  • 900 views
Posted on August 01, 2016 at 22:00

Hello!

With Atmega regular hardware SPI, data transfer is 8-bit. Hence, when asserting commands, followed by receiving/transmitting data from/to STLED, each transmission will look like 2 8-bit packets separated by hi-level on STB line. Will it interrupt read/write procedure, or hi-level on STB is OK between command sent and data received packets?

or transmission should look like 16-bit transmission for correct data interchange? in this case PIO is only option I can use

#atmega #pio #spi #stled316
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1 reply

hexel2
hexel2Author
Associate II
August 1, 2016
Posted on August 01, 2016 at 23:48

please, explain how user is intended to interprete RAM table on page 24 of STLED316 datasheet? what kind of idiot had composed it? datasheet is completely contradictory, incomplete and mindblowing. it has no data transmit examples, no LED connection guide, MSB and LSB order is different on different diagrams! initial values of brightness on one hand means minimum LED brightness, while in other place in datasheet it means max... is there confident refference with wiring and timing diagrams, code examples, anything apprehensive?

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