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My project is an attempt to port MSP430 BLDC code example avaiable for high grade msp430 (slaa503) to lower performance
but high reliability launchpad platform.
What I have done: fw V1.1 proper phase switching and recognition, pwm regulated via potentiometer, hall error/motor fault recognition. It works!
At this point I have tested the bldc motor fw V1.1 on launchpad rev1.5 without any motor or power circuitry connected to the board.
I have "simulated" the behaviour of a bldc motor phase switching during rotation with another launchpad board, this time rev1.4.
With a Textronix oscilloscope and debug feature in CCS4 I have succesfully compiled a stable version and I called it V1.1. I was not able
to find any glitch in pwm pin commutation or other significative bugs so I can proceed with next step.
Now I dedicate to motor connection and power circuitry to finish my project. I am waiting for various components and meanwhile
I am working on a pcb board design wich contains al the power mosfet and hall signal conditioning circuitry.
Contact me if you think you can help with the project.
Note: V1.0 was with software pwm, I abandoned it because of poor performance (2kHz/3bit pwm VS actual 16kHz/8bit pwm)
Update 6 may 2012:
- Created a simple program wich does phase commutation simulation with msp430g2231 (launchpad rev1.4)
with external trigger square signal. Now i can test phase commutation with external high frequency square signal.
Bldc motor fw rev1.1 recognized simulated motor phase commutation at 50kHz.
Source file here:
- Created a board in Eagle (thank you Vito) wich is expected to work like others official launchpad boosterpacks this is the boosterpack to drive bldc motors!
Eagle project here:
Update 7 may 2012:
- Created another board with L6234PD IC from ST. This IC has high cost but simplifies a lot
the circuit (see previous version). I have routed the board in one layer to make it easier to build for hobbysts.
Here the image:
i want to know the interfacing of motor driver 8432 with the MSP430
Hi, I am just getting my hands into brushless DC motor control. I have the Exceed RC legend Motor 2402-2350KV motor (Links provided below). I need to learn how to control it. Can you help me get started?
I have samples of the DRV8312, DRV8313, and the DRV 8301 ICs. I also have Arduino nano, Due, and an MSP430 Launch Pad. I also have a variable 3V to 24 V power source. Using the above mentioned devices that I already have how do I proceed? please let me know if I need to procure any other electronics? I intend to make my own board using the above mentioned components.
Links to devices:
Driver ICS: www.ti.com/.../drv8313 , www.ti.com/.../drv8312, www.ti.com/.../drv8301
MSP430 Launchpad: www.ti.com/.../msp-exp430g2
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