SPI

Started by Bala, December 04, 2021, 12:49:59 PM

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Bala

Hi,
What is the SPI Clk operating Frequency for A64 Board's SPI in UEXT1 connector (SPI0)? I tried to check user manual as well as A64 SOC Data sheet, I couldn't find it.

Bala

Hi
I mean, max freq for SPI_CLK supported by A64, I tried to check that in A64 data sheet, there is no info on max clock speed of SPI_CLK. Can you please help?

LubOlimex

In the Olimage images it is 10Mhz. Source:

https://github.com/OLIMEX/olinuxino-overlays/blob/master/sun50i-a64/spi0-spidev.dts

spi-max-frequency = <10000000>;
Technical support and documentation manager at Olimex

Bala


FalloutST

Other question, can a64 be used as slave SPI device? And if so, how.

JohnS

I guess that's can any Linux SPI be a slave... (don't know, but might be found on the net or asked on Linux places).

John

FalloutST

Is there HW and SW forum JohnS about A64 or you can send me (same way you did...) to better paces where we can talk about how to implement SPI slave driver on A64 chip runnin olinuxino image...... GJ Hero Member JohnS