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  • Cant do this anymore bye all
  • Cant do this anymore bye all's Avatar
04 Jan 2025 02:44
Replied by Cant do this anymore bye all on topic Have you tried linuxcnc support to run on rockchip series development boards?

Have you tried linuxcnc support to run on rockchip series development boards?

Category: General LinuxCNC Questions

There have been attempts run Linuxcnc on Rockchip platforms.
Unlike gaming raw graphics throughput isn't a great concern.

The key to a successful Linuxcnc system is tasks happening at dependable and regular intervals., which doesn't always equate to raw clock speed. The Begle Bone Black was quite capable running Machinekit (a fork of Linuxcnc that has gone very quiet) using the on board PRUs for generating the required signals. This is a board with a 1Ghz arm proc and 512MB ram. Ran very well with Debian Wheezy.

And whilst SBC are intersting in the broader computing world, best bang for buck appear to be 2nd hand ex corporate PCs. They are cheap and provide a very easy entry for most users.
  • ccatlett1984
  • ccatlett1984
04 Jan 2025 02:40
Replied by ccatlett1984 on topic Pi5 MESA 7c80: mesaflash can't see the card.

Pi5 MESA 7c80: mesaflash can't see the card.

Category: Driver Boards

No but it has been mentioned multiple times in multiple places (pretty sure I have mentioned it myself in this thread, maybe my posts are too long), why it isn't enabled by default is only something those that produce the images can say. I was a advocate for enabling it by default and disabling BT & sound

Or at least this should be mentioned on the download page, but people being people they can be lazy and only want the goodies or they only follow links to the actual downloads.

As you can see there is only one spi device interface that the 7c80 will respond to without a custom cable.

On a Pi <5, if you see anything in /dev/ spi*, spi is enabled...
Seeing as how i didn't have another pi5 with it already enabled to compare /dev/spi* to, it is a fair assumption for folks to make.
At the least, this needs a note/callout.
  • Cant do this anymore bye all
  • Cant do this anymore bye all's Avatar
04 Jan 2025 02:33
Replied by Cant do this anymore bye all on topic Pi5 MESA 7c80: mesaflash can't see the card.

Pi5 MESA 7c80: mesaflash can't see the card.

Category: Driver Boards

No but it has been mentioned multiple times in multiple places (pretty sure I have mentioned it myself in this thread, maybe my posts are too long), why it isn't enabled by default is only something those that produce the images can say. I was a advocate for enabling it by default and disabling BT & sound

Or at least this should be mentioned on the download page, but people being people they can be lazy and only want the goodies or they only follow links to the actual downloads.

As you can see there is only one spi device interface that the 7c80 will respond to without a custom cable.
  • Cant do this anymore bye all
  • Cant do this anymore bye all's Avatar
04 Jan 2025 02:27 - 04 Jan 2025 02:35
Replied by Cant do this anymore bye all on topic Arduino IO Expansion

Arduino IO Expansion

Category: Show Your Stuff

Fuck there goes my new year's resolution, getting caught up in stuff like this.
  • ccatlett1984
  • ccatlett1984
04 Jan 2025 02:27
Replied by ccatlett1984 on topic Pi5 MESA 7c80: mesaflash can't see the card.

Pi5 MESA 7c80: mesaflash can't see the card.

Category: Driver Boards

You need to enable spidev0.0 by turning SPI on in the boot/broadcom/config.txt file

(I have no idea what pins spidev10.0 connects to)

 

Thought that would have been already enabled in the downloaded image...
I enabled it in /boot/broadcom/config.txt
here is the output
pi@linuxcnc:/dev$ ls spi*
spidev0.0  spidev0.1  spidev10.0

Here is the mesaflash output.
pi@linuxcnc:~$ sudo mesaflash --device 7c80 --addr /dev/spidev1.0 --spi --readhmid
open: No such file or directory
No 7C80 board found
pi@linuxcnc:~$ sudo mesaflash --device 7c80 --addr /dev/spidev10.0 --spi --readhmid
Unexpected cookie at 0100..0110:
ffffffff ffffffff ffffffff
No 7C80 board found
pi@linuxcnc:~$ sudo mesaflash --device 7c80 --addr /dev/spidev0.0 --spi --readhmid
Configuration Name: HOSTMOT2

General configuration information:

  BoardName : MESA7C80
  FPGA Size: 9 KGates
  FPGA Pins: 144
  Number of IO Ports: 2
  Width of one I/O port: 27
  Clock Low frequency: 100.0000 MHz
  Clock High frequency: 200.0000 MHz
  IDROM Type: 3
  Instance Stride 0: 4
  Instance Stride 1: 64
  Register Stride 0: 256
  Register Stride 1: 256
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