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edison-fw / meta-intel-edison

Here is the meta-intel-edison that builds, tries to stay up to date. Master is based on Yocto Poky Gatesgarth LTS 5.10.yy vanilla kernels. It builds a 32bit kernel (Gatesgarth branch 64bit) with ACPI enabled and corresponding rootfs. Telegram group: https://t.me/IntelEdison Web-site:
https://edison-fw.github.io/meta-intel-edison/
MIT License
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feedback: /dev/spidev5.1 seems to work fine in 5.0.0-edison-acpi-standard #65

Closed ecc1 closed 4 years ago

ecc1 commented 4 years ago

Usermode access to SPI devices via /dev/spidev5.1 seems to be working fine.

htot commented 4 years ago

Do you think I need to correct something in the documentation? Or is there another area that's needs improvement?

ecc1 commented 4 years ago

The current documentation says "SPI should be working but we haven’t tested this with hardware. Feedback here will be much appreciated." which is why I filed this "issue", that's all.

htot commented 4 years ago

Would you care to edit the file, with how you tested as an example and send a PR? It's in markdown here: docs/_docs/Edison/Current State/4.4-hsu-i2c-spi.md

Also, I'm interested in knowing what happens with the LED while your communicating with the SPI device?

ecc1 commented 4 years ago

OK, will do. I'm using an Intel mini-breakout board, and didn't notice any effect on the LEDs during SPI activity. Why do you think there might be an interaction?

htot commented 4 years ago

I see. That applies only to the Edison-Ardiuno board. AFAICT the LED is muxed with a SPI line.

xlla commented 4 years ago

I can report here, I have connected an oled screen on spi driven by fbtft/fbcon. if screen is light on, DS2 will quickly blink, about ~5hz or more. if screen goes sleep, DS2 will off.