What is FPGA in Mesa.boards

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13 Sep 2019 01:29 #145014 by DinukaShehan
What is FPGA in mesa boards and IO pins.
What are the uses of them.
I cannot find clear meaning of them.

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13 Sep 2019 02:13 #145021 by bevins
Replied by bevins on topic What is FPGA in Mesa.boards

DinukaShehan wrote: What is FPGA in mesa boards and IO pins.
What are the uses of them.
I cannot find clear meaning of them.


FPGA wiki
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13 Sep 2019 06:53 #145027 by pl7i92
Replied by pl7i92 on topic What is FPGA in Mesa.boards
mesa uses spatan Chips
FPGA is a gate array that is user programable
so you can design your pwm your i/O direction and combinate them to timers
in Linuxcnc they are used for "HARDWARE" Stepgens that is not times by the PC

benefit is you send not individuell commands to eatch pin insted of cumminicate high speed >4M bit with the Fpga and let this do the timing

so you reatch a near 10times higher accoracy and speed on servo system
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13 Sep 2019 19:18 #145076 by DinukaShehan
Like 100000 latency value computer run with mesa board will give reasonable latency value

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14 Sep 2019 03:00 #145103 by rodw
Replied by rodw on topic What is FPGA in Mesa.boards

DinukaShehan wrote: Like 100000 latency value computer run with mesa board will give reasonable latency value


Yes, that will work
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