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I need a controller for a DC Brushless motor with hall sensors. Eventually I plan on making one using a pic, but for now I need the quickest solution possible. Does anyone know of any dedicated controller chips that would help me out? (that aren't motor control microcontrollers... I want to eliminate development time at the moment)
I'm afraid that I may be being lured over to 'the atmel side' of the force....
AVRs with 6 PWM channels are quite appealing for a 3-pole BLDC motor controller! :) Not to mention the very cheap hardware/software available for AVRs. And they're mostly in C, which suits me fine.
If it wasn't for the time and effort invested in PICs, I think I would've defected to AVRs long back. Then again, I've done jobs where I had to come in and work on a PIC based system. Maybe I'll continue to use both, since that will lead to better employment prospects.
Ah well, keep on enjoying PBP, and I'll see you back here when I need to return to the world of difficult programming algorithms and expensive compilers! :)
Just kidding, I think I'll miss the hardware 'robustness' of PICs, but I'm not really doing anything that requires it at the moment, more peripherals and CPU power is more important.
Probably not, you will replace us with a C expression!Quote:
Originally Posted by forgie
The AVR architecture was designed from the ground up for
efficiency with C code.
Have fun and pick the right compiler!
Best regards,
Luciano
Welcome to the world of open-source, GCC can be used for the AVR, which means that you have a free C compiler that includes single floating-point and standard number representations etc. No more f$%&ing around with doing complex ineger math - I'd swear my head nearly exploded once or twice doing a particularly complicated two-variable function in integer math. In GCC it will all be, well, a distant memory.
Actually I'm not going to use an AVR straight off, I'm going to get an Allegro 3936 BLDC motor controller. But I am going to use AVRs whenever I can in the future...
Hi Nick,
The STK500 is a "must have" for your new career!
Best regards,
Luciano
* * *
The Atmel AVR ® STK500 is a starter kit and development system for Atmel's AVR Flash microcontrollers. The STK500 gives designers a quick start to develop code on the AVR combined with features for using the starter kit to develop prototypes and test new designs. The STK500 interfaces with AVR Studio ® , Atmel's Integrated Development Environment (IDE) for code writing and debugging.
Expansion cards are available for the different AVR sub-families and larger devices.
2 pages flyer:
http://www.atmel.com/dyn/resources/p...ts/doc1939.pdf
http://www.atmel.com/dyn/resources/p...ges/STK500.jpg
Yep, I'll definitely grab me one of those when the time is right - unfortunately now is not that time! More work needs doing on an older, 18f452/PBP based project. Looks like I may hang around this forum for just a little bit longer....