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MPaulHolmes · 11-21-2009, 01:44 AM

I programmed the microcontroller for the first time tonight! I made up a basic circuit for in-system programming. I turned on an LED, then I turned on another LED! hahaha. There were several irritating things that happened along the way, but I digress...

I got the encoder installed on the motor. I had to mill a flat plate and JB weld it onto the motor, so there would be a nice surface to stick the encoder. It's perfectly centered, since I ordered a centering tool. I took pictures, but the camera just ran out of batteries, so they are charging right now.
EDIT: THEY ARE DONE CHARGING!
PicKit3 in action! Thank you sawickm!!!!!

Here's the test circuit for in-system programming!

So, how do you program this dang chip anyway? Follow these directions!

Here's the 3 phase AC test motor. Notice the encoder mounted on the motor shaft. It has 512 pulses per revolution:

Next I'm going to get the A/D channels working, and then the pwm working. Then all 6 of them working, and then drive 6 LEDs at the same time (like a 3 phase bridge), and then hook it up to the motor!

I've been deriving the clarke and park transformations to make sure I understand what is going on. It's not bad at all now! I understand! In fact, I found a mistake in the Application Note AN908 that everyone always talks about. They have the wrong transformation for Park! The most important part was wrong! I had actually used that transformation when I used to make really stupid video games. It's a 2D rotation. I'll add the pictures later.

Jack Bauer is using 1200v 1000amp IGBTs! If I can get 6 of those for a 3 phase bridge, that would be some crazy crazy power. Profoundly disturbing power.

11-21-2009, 01:44 AM	#65 (permalink)
MPaulHolmes PaulH Join Date: Feb 2008 Location: Maricopa, AZ (sort of. Actually outside of town) Posts: 3,832 Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000 Thanks: 1,368 Thanked 1,202 Times in 765 Posts	I programmed the microcontroller for the first time tonight! I made up a basic circuit for in-system programming. I turned on an LED, then I turned on another LED! hahaha. There were several irritating things that happened along the way, but I digress... I got the encoder installed on the motor. I had to mill a flat plate and JB weld it onto the motor, so there would be a nice surface to stick the encoder. It's perfectly centered, since I ordered a centering tool. I took pictures, but the camera just ran out of batteries, so they are charging right now. EDIT: THEY ARE DONE CHARGING! PicKit3 in action! Thank you sawickm!!!!! Here's the test circuit for in-system programming! So, how do you program this dang chip anyway? Follow these directions! Here's the 3 phase AC test motor. Notice the encoder mounted on the motor shaft. It has 512 pulses per revolution: Next I'm going to get the A/D channels working, and then the pwm working. Then all 6 of them working, and then drive 6 LEDs at the same time (like a 3 phase bridge), and then hook it up to the motor! I've been deriving the clarke and park transformations to make sure I understand what is going on. It's not bad at all now! I understand! In fact, I found a mistake in the Application Note AN908 that everyone always talks about. They have the wrong transformation for Park! The most important part was wrong! I had actually used that transformation when I used to make really stupid video games. It's a 2D rotation. I'll add the pictures later. Jack Bauer is using 1200v 1000amp IGBTs! If I can get 6 of those for a 3 phase bridge, that would be some crazy crazy power. Profoundly disturbing power. __________________ kits and boards Last edited by MPaulHolmes; 11-21-2009 at 03:23 AM..