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Messages - ben

1
Project development, ideas, and suggestions / Re: Sensorless Brushless DC Motor Drive
Are the booster boards still available for purchase?    I have an MSP430 launchpad, and I've been thinking to get a openbldc board or a ti drv8301 pack but would much prefer to use this booster!

Looking at the github files...

1) what are the PWM vhdl files used for?  Is it for simulating the actual MSP430 pwm peripheral (speed control,  pwm dead time, etc)? 

2) Isn't back-emf integration (or even zero crossing) used in sensorless motor control?  Why does the schematics show hall sensors .. is it used for redundancy/debugging?

3) Is the tools folder ('console' source code)  used for getting debug diagnostics from the msp430 via uart?

I'm hoping to learn motor control.. Anyone recommend a good book?    One that covers practical implementation, like bipolar pwm vs unipolar, driving the 2 active phases with complimentary pwm or high-side or low-side only,  etc?
2
General discussion / Re: Leaf Labs Maple Arduino thing interview questions
I've always been curious why these open projects, never use the Eclipse IDE?    Especially since it's so easy to add plug-ins to extend the functionality, why does leaf labs, arduino, chipkit, create yet another ide?

Is there something inherent limiting in eclipse that prevents it's use?

I know mentor, xilinx, altera, abd ti all use it for their professional embedded development.. it's gotta be good enough, no?
3
Bus Pirate Support / Python-On-A-Chip on a Bus Pirate
I understand the p14p should work on the dangerous prototype's webserver board (80mhz 32-bit dsPIC33).. but, according to the python-on-a-chip wiki (http://code.google.com/p/python-on-a-chip/)  it also can run on a 16mhz 8-bit atmega!!!

Is there any reason why this lightweight python vm wouldn’t run on the bus pirate (PIC24F)?

I’m sure the new bus pirate firmware, v5.8, and the pySerial program + pyBusPirateLite library, works great in the pirate’s binmode, but wouldn’t the pic running a native python vm be ideal??

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