Whenever I download a program, I get the following error that reads...
"Please note that the version (430) of the library currently in use
does not match the version (501) of the firmware on the controller on
the board. This can result in undefined behavior"
Is there a fix for this?
Also, I have an encoder reading the rpms of dc motor, the value never
reaches a constant value. The voltage and current of the dc motor are
constant, but never reaches a steady-state-value. Any ideas?
Hello, Whenever I download a program, I get the following error that reads... "Please note that the version (430) of the library currently in use does not...
Hi, Sorry for the delayed response. Please note that the error message has absolutly no ill effect on Sumo11 functionality and can simply be ignored. However...
... Answering this question will require some additional data: What is the resolution of the encoders, that is how many "ticks" are counted per revolution? ...
Thanks Dan, I appreciate your help. Please let me know if you run accross a fix for the encoder problem. It is hindering with my control system, I hope there...
I am sure your programming is beyond reproach, everyone’s is. but would you mind sharing your actual logic for the RPM calculation with the encoders? I...
Sure, I have no problem sharing my code. Infact, I would prefer that to make sure that I am not making any mistakes. Do you want me to sent it to this address...
Actually I was suggesting you post to the board. What I think needs to be shown is how you are transforming the encoder counts to RPM, You need to have the...
Thanks for the explanation. Below is the first attempt... NOTE: I varied 'j' value frm 10 to like 150 or so to see if they were any changes, but no change ...
I believe the problem is the enable encoder inside the get_spd() routine. I recoded the program as below. Note that I converted the for(j… ) loop to a while...
Thanks abundance for your help. I have a few questions. What does the while loop doing? That is, stT = srtT= seconds(); //These two valuabel are equal, always...
The while has a block of code that sets stT = seconds() each time (stT – srtT <.25) is true. You read reading while as “DO Until, which would not execute...
Just one other thing.... Thanks abundance for your help. I have a few questions. What does the while loop doing? That is, stT = srtT= seconds(); //These two...
No, that is not what I meant,,,according to your loop.. stT - srtT = seconds() which is 0 <.25 that condition is always true...right? It will never be false. ...
The block updates stT with the current time. After .25 seconds we exit. ... From: Sumo11users@yahoogroups.com [mailto:Sumo11users@yahoogroups.com] On Behalf Of...
Jim, thanks so much for your help...I'am going to run it on my controller. I'll let you know how it goes. I appreciate your time. Jim Peterson <jimcp@...>...
Hello Jim, Thanks for your help with the encoder. Your code works perfect. I figured out what the problem was with me not getting a constant reading from my...
I donlt think I understand your question. What “some other device” where you interested in using? What kind of signal does the “some other device” want...
A device that reads the ouput on an encoder for a certain fix time and output the speed of the motor to the Sumo11. The idea is that I don't want to you use...
Any approach that uses digital measurement will always be some previous speed, not the current. My feeling is the error in the delayed reading would only be...
Thanks for your advise, I'll do a little more research to see if I can get anywhere with that. Another question for you, is there anyway I can control a small...
I have seen the motor ports used to operate even larger relays, There is always a concern for ground differential problems so another choice is an opto...
Ooh that is interesting, how does that work? Where can I get an Opto Isolator to work best with the sumo11? Also, aren't those LEDs used by the servo's output...
I can’t take the responsibility of completely educating you, For one thing, I am not really qualified to teach this topic. Do a google search on the terms...
Hello all, I am using the sonar sensor sr04 with the sumo11 using the following code: persistent int dist_test[50]; void main() { int j; sonar_init(); j = 0; ...
I tried a range of sleep times, but I'm still reading a constant number of tics that dances around the 1100 region. I was using the port 7 for an encoder...
If you still have the encoder module loaded that is probably it. ... From: Sumo11users@yahoogroups.com [mailto:Sumo11users@yahoogroups.com] On Behalf Of Belal...
But I changed the encoder port to port # 8 and I'm using port 7 for the sonar. I recycled power to the sumo11 several times but still no real results. The...
I am not sure. Both the encoders.asm and the srf04_sonar_asm use TIC3. There certainly is a potential for interference. ... From: Sumo11users@yahoogroups.com...
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