LinuxCNC at RPI4 with using IO Pins only ?
- PCW
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28 Mar 2021 19:07 - 28 Mar 2021 19:07 #203927
by PCW
Replied by PCW on topic LinuxCNC at RPI4 with using IO Pins only ?
Yes, if its a slow serial setup thing then a separate comp makes sense.
If you can setup chip parameters via SPI (like some chips I am familiar with),
hal parameters should be fine as they are not transmitted so take near 0 CPU
if not changed (and allow real time adjustments if needed)
If you can setup chip parameters via SPI (like some chips I am familiar with),
hal parameters should be fine as they are not transmitted so take near 0 CPU
if not changed (and allow real time adjustments if needed)
Last edit: 28 Mar 2021 19:07 by PCW.
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- andypugh
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28 Mar 2021 23:47 #203965
by andypugh
Replied by andypugh on topic LinuxCNC at RPI4 with using IO Pins only ?
Are you saying that some Trinamic chips can take position commands over SPI and effectively generate steps internally?
The datasheet that I just glanced at didn't seem to be saying that, for the one that I looked at.
The datasheet that I just glanced at didn't seem to be saying that, for the one that I looked at.
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29 Mar 2021 01:11 #203968
by PCW
Replied by PCW on topic LinuxCNC at RPI4 with using IO Pins only ?
Yes, the TMC5160 can do this and probably others
Also the ST Micro PowerStep01
Also the ST Micro PowerStep01
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- rufino
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17 Jan 2024 01:25 #290919
by rufino
Replied by rufino on topic LinuxCNC at RPI4 with using IO Pins only ?
Is it possible to provide a tutorial for configuring the Raspberry Pi using GPIO with LinuxCNC?
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- rodw
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17 Jan 2024 09:41 #290933
by rodw
Try linuxcnc.org/docs/stable/html/drivers/hal_gpio.html
Replied by rodw on topic LinuxCNC at RPI4 with using IO Pins only ?
Is it possible to provide a tutorial for configuring the Raspberry Pi using GPIO with LinuxCNC?
Try linuxcnc.org/docs/stable/html/drivers/hal_gpio.html
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