Search found 11 matches

by ronstory
Mon Jun 27, 2022 10:11 am
Forum: General Discussion
Topic: Regression with 4.2.1 FW?
Replies: 1
Views: 4053

Re: Regression with 4.2.1 FW?

Well, with no feedback received, I implemented a workaround. When I send a batch of buffered commands, the first command is unbuffered to clear out any remaining commands executing on the motor. Then I write my buffered commands to the RC and then immediately check the command buffer to make sure it...
by ronstory
Sun Jun 19, 2022 6:27 am
Forum: General Discussion
Topic: Regression with 4.2.1 FW?
Replies: 1
Views: 4053

Regression with 4.2.1 FW?

I'm using a RC 2x7A. Since updating to the 4.2x the I'm seeing different behavior with the same stable code that works on 4.1x versions. I'm moving a telescope so I do two buffered moves for each position. When I check the command buffer I can see the value changes from 0x80 to 0x01 which means two ...
by ronstory
Thu Apr 28, 2022 12:14 pm
Forum: Velocity and Position Control
Topic: Is thee a way to do a buffered velocity/speed command?
Replies: 1
Views: 3647

Re: Is thee a way to do a buffered velocity/speed command?

OK, figured out a workaround. I just need to add a second buffered speed position move with the desired velocity and set the position *way* out there, so it's effectively never completes. Then I can change to non-buffered speed command in a leisurely fashion. Or perhaps, not at all. :shock:
by ronstory
Wed Apr 27, 2022 5:19 pm
Forum: Velocity and Position Control
Topic: Is thee a way to do a buffered velocity/speed command?
Replies: 1
Views: 3647

Is thee a way to do a buffered velocity/speed command?

hi-- I'm attempting to use a RC 2x7a to control the position of a telescope. What I'm trying to do is a position move on both motors and I don't really care with motor finishes first. One of the axis need begin a velocity move at a low speed for the telescope to track the object in the sky. I can us...
by ronstory
Wed Apr 20, 2022 10:32 am
Forum: General Discussion
Topic: Starting thread for user manual updates / corrections
Replies: 1
Views: 4353

Re: Starting thread for user manual updates / corrections

Found one more on page 70, QPSS should be QPPS 70 - Set Motor1 Default Speed Set M1 default speed for use with M1 position command and RC or analog modes when position control is enabled. This sets the percentage of the maximum speed set by QPSS as the default speed. The range is 0 to 32767. Send: [...
by ronstory
Tue Apr 19, 2022 8:47 am
Forum: Velocity and Position Control
Topic: Newbie - question on default values for speed & accel
Replies: 2
Views: 3916

Re: Newbie - question on default values for speed & accel

Thanks! I'll be used the packet serial model, so should be good to go.

Ron
by ronstory
Mon Apr 18, 2022 8:45 am
Forum: General Discussion
Topic: Starting thread for user manual updates / corrections
Replies: 1
Views: 4353

Starting thread for user manual updates / corrections

Hi-- Basic Micro has some truly innovative products at solid price point. We linux folks typically have to tweak/write code to get our desired functionality, which causes us to read the documentation. Usually cover to cover. :) I found a couple corrections and thought by starting a thread, we could ...
by ronstory
Sun Apr 17, 2022 1:38 pm
Forum: General Discussion
Topic: Is there an error in docs on "Read Status" cmd 90?
Replies: 3
Views: 5789

Re: Is there an error in docs on "Read Status" cmd 90?

Understood. It looks like the first set of messages are masked to 3 bytes and the last two are masked to 4 bytes. What is the correct length of the response message now? Thanks, Ron From Page 73 of the User Manual Normal 0x000000 E-Stop 0x000001 Temperature Error 0x000002 Temperature 2 Error 0x00000...
by ronstory
Wed Apr 13, 2022 3:50 pm
Forum: General Discussion
Topic: Is there an error in docs on "Read Status" cmd 90?
Replies: 3
Views: 5789

Is there an error in docs on "Read Status" cmd 90?

Hi-- i'm trying to implement a c function to read the status of the RC, but i'm confused by the docs, snippit is pasted below. If you look at the receive field, "Status" is defined as one byte, but the mask to decode is a 16bit word. Which is correct or am I missing something? Thanks, Ron ...
by ronstory
Wed Apr 06, 2022 7:30 am
Forum: Velocity and Position Control
Topic: Newbie - question on default values for speed & accel
Replies: 1
Views: 3640

Newbie - question on default values for speed & accel

Hi-- I'm new to the roboclaw and most of my experience with servos is using custom LM628/629 HW. I trying to understand how the RC works. In the LM628 world, I would program a single max acceleration values (same value for both accel and decel) and set a max speed along with the PID settings. Once t...