bobc
10 kW
Yep the chip code has been scrambled:- prised out that chip & plugged in a spare that Andy had & it worked fine.
I don't know the program teraterm so don't know what this option does.... The update file has to be send as is, any extra inserted characters like newlines or whatever will corrupt the chip.bobc said:Hi bas
We just tried to update v2.80 to v2.81 & have stopped the micro working.
On windows - termite did not have a "dump a file" option so we got tera-term working.
Followed the procedure, row of dots appeared eventually ending in a *
Happy days we thought.
But no more comms to the chip.
There was a "check box" in teraterm labelled "send binary" which we left unchecked- was this our mistake?
Should we try again with this checked on another chip?
Can we send the "bad" one back to be programmed correctly again?
Thanks
Bob
np. does work with windows & linux. i use both. on my home laptop i use ubuntu and like the "serial port terminal" as it's easy to use and does everything you need. pretty easy to work with with all the keyboard shortcuts as well.whereswally606 said:Thanks Lebowski/Izeman
we didn't select binary so it sent as text which appears to have been correct. I think I will get hold of a Linux box and use the terminal program you used since then we cant blame the difference in windows vs Linux on it.
yes i did. as i said, the OS doesn't matter. just the software you use can be easier to use than another. all it needs is a possibility to upload a text string.whereswally606 said:Izeman did you flash the pic under windows?
we had no trouble using the serial port until we tried to upload the file to it.
Tomdb said:Changes?
bearing said:Hey Lebowski,
I haven't visited this site in a long time. I'm thinking about buying one of your chips.
I remember you showed a video once where you had a GUI which showed a dot spinning in a circle at the same speed of the motor. Are you still using that? Would that be a good tool to use when setting up the controller? Do you provide that? and/or different software?
a) erpm limiter (forward) rampdown start, end: 29.99, 32.98 k-erpm
b) erpm limiter (reverse) rampdown start, end: 39.99, 41.97 k-erpm
c) regen rampup start, end: 495, 1276 erpm
d) accept direction change below: 78 erpm
e) erpm boundary between dr2 & dr23: 990 erpm
f) erpm boundary between dr23 & dr3: 2475 erpm
g) use acceleration limiter: yes
h) acceleration limiter start, end: 10.10, 12.11 kerpm/sec
a) use HVC, LVC battery current limiting: yes
b) battery voltage: 64.6 V
c) HVC cutoff: 64.9 V
d) HVC start : 62.9 V
e) LVC start : 54.9 V
f) LVC cutoff: 52.9 V
a) use HVC, LVC battery current limiting: yes
b) battery voltage: 56.5 V
c) HVC cutoff: 64.9 V
d) HVC start : 62.9 V
e) LVC start : 54.9 V
f) LVC cutoff: 52.9 V
I don't think so.Harold in CR said:Is this lebowski controller only PMDC or can it be modded for ACIM also ?
I don't think its a simple change. I would be interested in code for a ACIM because that would run a tesla motor.Harold in CR said:So, Arlo, do you think a change of code would work for ACIM. I know they need a resolver for rotor position.
could you please go a bit in depth how to find the correct values?For mid-drive applications, to prevent it from breaking the clutch you can now set an acceleration limit. This again works with a start and end value indicating the ramp down of the phase current.
The acceleration limiter limits the speed with which the motor can speed up. I think you just have to think of how many seconds you want for the motor to go to full speed.izeman said:could you please go a bit in depth how to find the correct values?For mid-drive applications, to prevent it from breaking the clutch you can now set an acceleration limit. This again works with a start and end value indicating the ramp down of the phase current.
eg my motor has a top erpm of 45k. what values would i set?