- Hardware & Machines
- Driver Boards
- Request: Custom 7C80 bitfile - Replace StepGens 0, 1, 2 with PWMGens (TB7, TB8,
Request: Custom 7C80 bitfile - Replace StepGens 0, 1, 2 with PWMGens (TB7, TB8,
- Tony123
- Offline
- New Member
-
Less
More
- Posts: 1
- Thank you received: 0
05 Mar 2026 17:37 #343906
by Tony123
Request: Custom 7C80 bitfile - Replace StepGens 0, 1, 2 with PWMGens (TB7, TB8, was created by Tony123
Hi LinuxCNC community,I am running a Mesa 7C80 via SPI on a Raspberry Pi 5. Because my main axes and spindle are handled over EtherCAT, I am not using the standard StepGens.I need to drive three linear coil motors that require a standard 5V hardware PWM signal. Could I please request a custom bitfile that replaces the first three StepGens with PWM Generators?Specific Routing Request:
- TB7 (Normally StepGen 0): Replace with a PWMGen.
- TB8 (Normally StepGen 1): Replace with a PWMGen.
- TB9 (Normally StepGen 2): Replace with a PWMGen.
Please Log in or Create an account to join the conversation.
- PCW
-
- Away
- Moderator
-
Less
More
- Posts: 17748
- Thank you received: 5189
05 Mar 2026 22:24 #343927
by PCW
Replied by PCW on topic Request: Custom 7C80 bitfile - Replace StepGens 0, 1, 2 with PWMGens (TB7, TB8,
So you want the DIR pin to be GPIO rather than PWM direction?
( The PWM direction pin is controlled by the sign of the PWM value )
( The PWM direction pin is controlled by the sign of the PWM value )
Please Log in or Create an account to join the conversation.
Moderators: PCW, jmelson
- Hardware & Machines
- Driver Boards
- Request: Custom 7C80 bitfile - Replace StepGens 0, 1, 2 with PWMGens (TB7, TB8,
Time to create page: 0.057 seconds