pekkaroi / bldc-drive Goto Github PK

I have started to read the code and looked at the gui as well but i think there is some kind of test mode missing, where you could just start the motor at very slow speed to test it without any encoder.

if I understand the code good enough, i will add such a mode to the software. i think that this will make development easier for beginners or people who have trouble with the encoder....

can you tell me and maybe others how to use this? how does configuring the servo work? I cant start the GUI when opening with python.

Hi,
Excellent open source project.I try to run it everything is fine but I don't know the specific meaning of encoder_poles.
It refers to the motor coil pair？It refers to the encoder subdivision？Or something else？
I read the code, but only in one calculation.Please tell me what it means.
Thanks a lot
y5664579.

Hi there!

I have taken a look at your schematic and layout, and have seen that you have created it in a kicad version older than 4.0. so i have forked the design and am actually migrating the project to kicad 4.0 and the new symbols.
if you like to merge it, i will create a pull request once i'm ready with the migrating process.
additionally i have deleted the older versions of schematic and layout, because there is git history and if you like you can pull older versions from there.

please do not migrate at the moment, because there is still work to do and migrating now will lead to more work for you :D

a list of parts and values that you have used in your prototypes would be neat, because they are not mentioned in the schematic...

sry. for something like fucked up grammar or missuse of words, I am from germany and so german is my first and main language...

Hello
What do you think it is possible to add PID position conttol of the mcm_xyz user from cnczone to this SDK. It auto generates code and project for IAR or Keil. From what i looked it is implemented only Speed and Torque in the ST Motor SDK.
FOC (Field Oriented Control) of 3-phase Permanent Magnet motors (PMSM, BLDC) brings increase torque ,efficiency, and reduce noise and torque ripple.
https://www.youtube.com/watch?v=yFecre8dacY

Hello Pekka!

Your project looks really interesting to me, though I am struggling to get everything sorted with eclipse. Any chance you could add the binaries to the repository. Just flashing a .hex to a breakout board would do wonders to start prototyping.

Cheers
Peter

Hi. You are correct, it refers to the number of pole pairs in the motors. The name seems to be stupid.. :)

So encoder_poles = all coils / 3
Is it right?
BTW what does commutation_offset mean?
thx for your reply.

Originally posted by @y5664579 in #14 (comment)

Hi, do you intend adding sensorless option for this project?

I get this error at line 11 Error[Og006]: Error in inline assembly: "Error[41]: Bad label"
The error is in file utils.c Any clue for debuging?

1 #include "utils.h"
2 #include <stddef.h>
3 #include <stdint.h>
4
5 void delay_ms(const uint32_t ms)
6 {
7
8 uint32_t ms2 = ms*STM32_CLOCK_HZ / 1000 / STM32_CYCLES_PER_LOOP;
9
10 asm volatile(" mov r0, %[ms2] \n\t"
11 "1: subs r0, #1 \n\t"
12 " bhi 1b \n\t"
13 :
14 : [ms2] "r" (ms2)
15 : "r0");
16 }

Hi, I would ask about possibility of implementation code for DC brushed motors. I tried change pwm.c file with pwm_Comutate to simple fixed BH1, BL1 parameters but its not work. Pekka please indicate me direction which I should focuse.

Thanks a lot

Kamil.

Hi Pekka,

What tool/version was used for firmware?
I tried loading the project to STMworkbench but it reports error on not recognizing uint16_t

Should the components in KiCad schematic be connected?

Have you got any progress with posting videos?

Rgds,
Tapio

ps above in english for wider audience

port source code to STM32F407 please..
it would be more fast, and more easy to learn for us to develop

Hii iam very apriciate to your project.

For now i looking like this driver for my pmsm servo 220v 5A. With ABZ encorder 2500ppr.
It is posible to used??
And this already suport step/dir interface right???
I will coustem the driver and igbt
With this chip IKCM30F60GA. (Already include driver igbt, you can check the data sheet)
Iam also want to used for my cnc. If u have time i wait for the answere🙏🙏🙏

I want to customize the firmware, for my motor control board, where can I configure the deadtime?

Lucky to see this impressive protect, it is with a good framwork. I have tested it in the step mode with an encoder of 4000 PPR. But when I adjust the input signal about 60KHz, that means the speed is under 1000 RPM, the pid error will decrease from 8800 to about 6500, then it will jump bigger and bigger till the biggest pid error.So during this, the sound is also bigger and bigger, why does it happen?
Thanks.

Is there a BOM available?