Remora for RP2040

I posted my comments and code to this PR:

github.com/scottalford75/Remora-RP2040-W5500/pull/4

With these changes I'm seeing around 100-150 ns of jitter (50ns typical) in the base thread execution on the RP2040 so I think it looks pretty good now.

hi folks,
i'm also playing with the RP2040, W5500, stepper motors, etc.

Glancing at the code for this project, i want to check you know the default SPI speed for the W5500 cripples the throughput.
I can't remember off hand what the default is but `spi_init(SPI_PORT, 48000000);` increases it by a significant amount.

Maybe you know already,
but better to know twice than not at all....

dunk.

Hi, Drewnabobber increased the speed to 50Mhz with his latest merge. A great improvement.

github.com/scottalford75/Remora-RP2040-W...src/w5x00_spi.c#L141

Is there somewhere a tutorial or an example for a setup of a machine with Remora? As its not Stepper configurator nor mesa configuration.
I think its a great alternative to mesa but to get more people involved i think a setup guide would really help, i know its for advanced users but if anyone has a link or doc for a basic setup guide i would really appreciate to have a good read on this topic.

Hi Snap1202,

The original Remora documentation will give you an insight into the basics, but it does not cover the Ethernet stuff. But configuration and LinuxCNC HAL is applicable.

remora-docs.readthedocs.io/en/latest/index.html

My YouTube videos also go through the setup of the Ethernet version.



That said, with more and more interest in all versions of Remora a more holistic set of docs is becoming important. Along with a good clean-up / rearrangement of the repos

I just received a shiny new PicoBOB-DLX from the Expatria Tech guys. Time permitting maybe a specific video on the RP2040 setup.

For the Expatria stuff, we publish the Flexi-Pi image which is basically ready to go with Remora and Probe Basic already installed.

I will write up the steps to install the Ethernet Remora component on there to use with the uFLexiNET/FlexiHAL and the PicoBOB DLX. It is 3 or 4 terminal commands, nothing complex.

github.com/Expatria-Technologies/remora-flexi-hal/releases