Mesa 7i90 in SPI mode

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hi joe, i tested your driver on a 6 hour job, seems to work really well. you should submit a pull request for it and hopefully itll get merged in to master.

how are your plans with the pine64 moving along?

Hello sleepybishop!

Thank you for running these changes. I am happy to hear your positive result. Could you tell me a bit about your system and job? What kind of machine is it and what speeds do you use? Are you running headless - no native display?

I have seen an occasional SPI Message timeout and am working on optimizing the standard spi-bcm2835.c code.

The Pine64 activity remains only a plan. I have the board running but need to apply the RT patches and enable the SPI device before rebuilding the kernel.

Once again - all the best! Joe

my machine is an ultimaker clone ( www.thingiverse.com/thing:811271 ), i built two of them, im in the process of using them to build drone parts. the job i ran was the main frame. it was printed at 80mm/s with 150mm/s rapids.

im running them with arch linux arm instead of debian mostly as a personal preference of linux distributions and partly because it was easy to add the rt patch to their kernel package build. i run headless because though axis loads it does run a little sluggish and eats up a bunch of ram, so i run linuxcncrsh to send commands over the network, its a little backwards but i hope to make some improvements there in the future.

i have not seen spi message timeouts.

wrt to the pine64, ide love to experiment with these boards as well but seems like the kernels available are a bit behind, though support is slowly trickling into mainline, ( linux-sunxi.org/Linux_mainlining_effort )

thanks again!

Hello,
I think I should ask here about jepler's Raspberry Pi adapter oshpark.com/shared_projects/bZNakuZs
I'd never ordered anything from oshpark before, so getting the boards was a nice experience.
Now I'm ready to solder, just need to make sure I do it correct.
Please check the pics

Well I found well hidden "1" near 26pin connector and soldered the adapter correctly.
The board seems to work with Pi 2!

I flashed 7i90 with SPI firmware via EPP on a PC. But what if I want to flash another firmware via EPP? What I understood from the manual:
1. Set W3 down.
2. Power up the board with a backup EPP firmware
3. Set W3 up and flash primary firmware via EPP.
Is this correct?

I would prefer to install mesaflash to Raspberry Pi and flash via SPI, is it possible? Is github.com/micges/mesaflash the correct source?