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MazdaMatt · 12-23-2008, 10:08 AM

I just had a peak at your schematic and read up on the IXDD414. I would like to HIGHLY recommend that you have some sort of fail-safe switch attached to the enable line instead of tieing it high. You could put it on the dash as the "start" switch.

Also, i don't know if you've done this because i didn't read the code... I would highly recommend that you use a watchdog timer that will put the chip into a reset state where the pwm line is driving the mosfets off.

I'm a computer engineer... i write embedded code for a living and i spend a lot of time dealing with the hardware for which i write code (i've got a pile of boards on my desk right now that i'm testing). I will definately follow your thread and see what you're up to and make little inputs where i can. Be sure to post anything that is puzzling you or any little ideas that you'd like expanded.

Cheers, and good luck.

12-23-2008, 10:08 AM	#33 (permalink)
MazdaMatt Master EcoModder Join Date: Jun 2008 Location: London, Ontario Posts: 1,096 2k2Prot5 - '02 Mazda Protege5 90 day: 33.82 mpg (US) Thanks: 0 Thanked 17 Times in 14 Posts	I just had a peak at your schematic and read up on the IXDD414. I would like to HIGHLY recommend that you have some sort of fail-safe switch attached to the enable line instead of tieing it high. You could put it on the dash as the "start" switch. Also, i don't know if you've done this because i didn't read the code... I would highly recommend that you use a watchdog timer that will put the chip into a reset state where the pwm line is driving the mosfets off. I'm a computer engineer... i write embedded code for a living and i spend a lot of time dealing with the hardware for which i write code (i've got a pile of boards on my desk right now that i'm testing). I will definately follow your thread and see what you're up to and make little inputs where i can. Be sure to post anything that is puzzling you or any little ideas that you'd like expanded. Cheers, and good luck.