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robertfoss avatar robertfoss commented on September 1, 2024

Hey,

As far as I know there is no HW DMA support for SPI on the ESP8266.

With that being said, do you really need HW SPI? You should be able to run the SPI at 1Mhz.
You should be able to run 125 APA102 leds at 250Hz.
1Mhz / (32bits/led * 250Hz) = 125 leds

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mkeyno avatar mkeyno commented on September 1, 2024

yes , it is now and can get up to 80 MHz, I need to at least 4 to 6 Mbps to run the show and that's why normal software SPI not work for me ,

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robertfoss avatar robertfoss commented on September 1, 2024

I don't think any library currently supports DMA. You could probably make something based on the I2S, which does have DMA support.

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