fraser wrote:Yep, those controllers are running a new USB stack. I'm also running 64b windows 7. I feel like the only time ive seen that happen is if you plug it in, and unplug it before the drivers get installed, Windows seems to get confused and not install it properly the second time you plug it in. This is all just off the top of my head though. I can test this issue out for you and I will let you know what i find.
Does this happen on a consistent basis? And on the same device being plugged into the same USB port?
1. Does a 1067 that was previously working and plugged in stop working without being unplugged/the computer being rebooted?-Patrick
Patrick wrote:2. How often would you say the 1067 comes up as 'unrecognized'? 1/10 times? 5/10 times? 9/10 times?
3. Do you have a different system that you can test the 1067's on? Maybe a different OS?
Patrick wrote:4. What motherboard to you have? Are you attaching the 1067's directly or via a hub?
This is not an issue that we have seen here, and we aren't able to reproduce, this is why we haven't responded for a while.
Patrick wrote:The fact that 2 1067's do this point to either a computer problem, or a 1067 firmware/hardware bug. It's unlikely that you got 2 faulty 1067's. A firmware bug would be nice, as we can juts issue an update, but we can't do anything unless we can reproduce the issue.
Patrick wrote:It sounds like your steppers are stalling on the 1067, while on the 1063, using the same speed/acceleration/current limit settings, they run perfectly?
Patrick wrote:In this case, I'd guess that you may need to re-calibrate your chosen current limit settings. You may need to choose different values for the 1067.
Patrick wrote:The 1067 also micro-steps full time, while the 1063 switches to full stepping for the faster speeds. This should allow the 1067 to drive a same motor at a faster speed then the 1063.
Patrick wrote:If your acceleration is low-ish, the motors may be spending too much time in their resonant zone, which is the most likely speed for a stall to happen at.
Patrick wrote:Are you changing acceleration/velocity while the motors are moving, or just position. The 1067 should handle any changes to parameters while moving perfectly - but there could possibly be a bug here if you are seeing bad behaviour.
Patrick wrote:You can send me the code and I'll have a look.
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