Search found 37 matches

by ragonamuffin
17 Jun 2017, 00:36
Forum: Related Hardware
Topic: RESC: Automotive quality high voltage fork from the VESC
Replies: 43
Views: 54087

Re: Moving around pins on the STM32 and upgrading to f7 over f4

I am getting back to this project in the next few days I hope. I will post newer schematic soon!
by ragonamuffin
08 Jun 2017, 19:05
Forum: Related Hardware
Topic: RESC: Automotive quality high voltage fork from the VESC
Replies: 43
Views: 54087

Re: Moving around pins on the STM32 and upgrading to f7 over f4

I'm going to have to re-read that many times to understand what any of that meant :lol: I knew about the pinout issue going into the project with the smaller chips. they have a whole page about it on the datasheet. I'm hoping that with the 144 pin I will not have to move around any pins at all! :) A...
by ragonamuffin
07 Jun 2017, 17:14
Forum: Related Hardware
Topic: RESC: Automotive quality high voltage fork from the VESC
Replies: 43
Views: 54087

Re: Moving around pins on the STM32 and upgrading to f7 over f4

Compatibility: Cortex-M7 is backwards compatible with the Cortex-M4 instruction set This is from ST's site: http://www.st.com/content/st_com/en/products/microcontrollers/stm32-32-bit-arm-cortex-mcus/stm32f7-series.html?querycriteria=productId=SS1858 Why does it say this? This is what made me believ...
by ragonamuffin
07 Jun 2017, 17:03
Forum: Related Hardware
Topic: RESC: Automotive quality high voltage fork from the VESC
Replies: 43
Views: 54087

Re: Moving around pins on the STM32 and upgrading to f7 over f4

I can also send you a board if you want to mess with it when I'm done
by ragonamuffin
07 Jun 2017, 16:39
Forum: Related Hardware
Topic: RESC: Automotive quality high voltage fork from the VESC
Replies: 43
Views: 54087

Re: Moving around pins on the STM32 and upgrading to f7 over f4

I will probably stick with the F4 for the first two that I build, I will then move to the F7 with the same dev board since I can just interchange these processors, right?
by ragonamuffin
07 Jun 2017, 14:02
Forum: Related Hardware
Topic: RESC: Automotive quality high voltage fork from the VESC
Replies: 43
Views: 54087

Re: Moving around pins on the STM32 and upgrading to f7 over f4

That sounds like a great plan. I was hoping to have found a 64 pin 3 CANbus chip that would work. I will move forward with the 144 pin!
by ragonamuffin
06 Jun 2017, 23:10
Forum: Related Hardware
Topic: RESC: Automotive quality high voltage fork from the VESC
Replies: 43
Views: 54087

Re: Moving around pins on the STM32 and upgrading to f7 over f4

Looks like I only need to supply 3.3v to this PCB now! This PCB is going to be squeaky clean :) 12v of course for gate drivers.

EDIT: Nevermind, using 5v on the current amps, oh well have to add an extra wire to harness :lol:
by ragonamuffin
06 Jun 2017, 23:08
Forum: Related Hardware
Topic: RESC: Automotive quality high voltage fork from the VESC
Replies: 43
Views: 54087

Re: Moving around pins on the STM32 and upgrading to f7 over f4

why not select a 3.3V CAN chip. Eric I didn't even realize that :shock: I would have dead pins at best right off the bat, thanks for spotting that! How about one of these: SN65HVD233-Q1 SN65HVD235-Q1 I don't really understand the benefit of each one, but either should work.... but that is what I sa...
by ragonamuffin
06 Jun 2017, 21:31
Forum: Related Hardware
Topic: RESC: Automotive quality high voltage fork from the VESC
Replies: 43
Views: 54087

Re: Moving around pins on the STM32 and upgrading to f7 over f4

What about using one of these, as I really would prefer 3 CAN buses:
STM32F413VG
STM32F413VH
STM32F423VH
STM32F423RH
STM32F413RH
STM32F413RG

If not one of these, which 144 pin would be the least troublesome?
by ragonamuffin
06 Jun 2017, 20:03
Forum: Related Hardware
Topic: RESC: Automotive quality high voltage fork from the VESC
Replies: 43
Views: 54087

Re: Moving around pins on the STM32 and upgrading to f7 over f4

NORMALLY ST provides compatibility between series of chips. So I have a board, where I was able to upgrade the planned '072 to a '405 without any hassle. Similarly, I have an application that I can prototype using the VESC hardware but that doesn't need a big CPU. So I suddenly have an '072 on ther...

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