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Old 02-05-2019, 01:31 PM   #3365 (permalink)
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Originally Posted by jackbauer View Post
Found the problem. Seems the call to the space vector modulation routine was commented out so no wonder I couldn't generate any pwm

Still not had any luck with the rotor tuning routine but guessed a few times for the rotor time constand and managed to rip my arm out of its socket trying to hold the output shaft
What version of compiler are you running?

I have not successfully built the source as yet. Just loading hex files that Paul built.

My board was/is set up for a potbox. I think Paul sent me instructions on what resistors to change out for a hall effect throttle. I'll check my email.

--------------------------my email 1 ---------------------------------
Hi Paul,

I know you are busy. I'm trying to get a hall effect sensor connected to my AC controller. The logging shows -4096 for the raw throttle, and the input pin seems to be dragging down the signal from the hall effect throttle.

Hopefully I did not kill the analog input. I don't think anything that I did should have done anything bad.

5V to throttle, 0V to throttle, checked voltage out of throttle, ranged from 0.5 - 2.2V. The other signal from the throttle is 1.0V - 4.4V (maybe not quite 2x)

Connect to the input pin and the signal drops to -0.18 ... that is below the level of the GND pin using my crappy meter ... but how?

-------------------------------my email 2 -----------------------------------

Hi Paul,

R53 is not installed
R51 is brn blk blk org brn. Measures as 1.001 K

You had given me a mod to use a hall effect throttle but I did not, apparently, get that far.

--------------------------paul's email ------------------------------

With the hall throttle disconnected, R51 should read 100k. It sounds like I put the wrong resistor in there. The hall sensors generally can only put out around 3mA, so a 1k resistor would be trying to take 5mA from it.
I just tried compiling it in mplab x, adn didn't have any issues. I chose the C30 compiler when I went through the "create a new project" steps. You could send the controller a 2.5v signal, and it will view that as zero throttle, as long as you set the minimum throttle to around 512.

In THEORY there is no difference between Theory and Practice

Last edited by thingstodo; 02-05-2019 at 01:35 PM.. Reason: put in quoted emails
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