How does a mesa card handle so many inputs?
- Leon82
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03 Mar 2019 21:55 #127630
by Leon82
How does a mesa card handle so many inputs? was created by Leon82
Does it switch between input and output or just the firmware they use?
I'm just kind of curious. I know they generate step pulses thru hardware
I'm just kind of curious. I know they generate step pulses thru hardware
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- tommylight
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03 Mar 2019 22:09 #127631
by tommylight
Replied by tommylight on topic How does a mesa card handle so many inputs?
Peter is much more qualified to answer that.
I think i read that they can handle up to 4096 IO and some other things.
I think i read that they can handle up to 4096 IO and some other things.
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- PCW
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03 Mar 2019 22:50 #127634
by PCW
Replied by PCW on topic How does a mesa card handle so many inputs?
A lot of our breakout cards use serial interfaces running at 2.5 Mbaud
(7I70,7I72,7I72,7I73,7I76,7I77,7I84 etc)
These use our SSerial interface that allows discovery of hal pins by the driver
automatically. The base FPGA card can support up to 32 of these interfaces
each with up to 96 bits of input and output data in real time
(7I70,7I72,7I72,7I73,7I76,7I77,7I84 etc)
These use our SSerial interface that allows discovery of hal pins by the driver
automatically. The base FPGA card can support up to 32 of these interfaces
each with up to 96 bits of input and output data in real time
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- pl7i92
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04 Mar 2019 08:28 #127664
by pl7i92
Replied by pl7i92 on topic How does a mesa card handle so many inputs?
its the Magic inside the Box
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- andypugh
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05 Mar 2019 16:53 #127802
by andypugh
I wonder how many cards LinuxCNC can support? I had a quick look through the headers to find out and found:
github.com/LinuxCNC/linuxcnc/blob/master...tmot2/hostmot2.h#L74
I wonder if that means that there can't be more than 1000 hotmot2 pins?
Replied by andypugh on topic How does a mesa card handle so many inputs?
The base FPGA card can support up to 32 of these interfaces
each with up to 96 bits of input and output data in real time
I wonder how many cards LinuxCNC can support? I had a quick look through the headers to find out and found:
github.com/LinuxCNC/linuxcnc/blob/master...tmot2/hostmot2.h#L74
I wonder if that means that there can't be more than 1000 hotmot2 pins?
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05 Mar 2019 17:46 #127809
by PCW
Replied by PCW on topic How does a mesa card handle so many inputs?
Looks like it, I think the max I've seen is in the 700 region
Probably not much cost associated with increasing that if needed
Probably not much cost associated with increasing that if needed
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