Change of MCU

OpenMV related project discussion.
seba.wetzel
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Joined: Sun Jul 26, 2015 4:57 pm

Change of MCU

Postby seba.wetzel » Sun Jul 26, 2015 5:03 pm

Hello everybody. I want to know why the new version of openMV has a downgrade of MCU, changing a STM32F429 to a 407, like in the first version of the board.
Thanks.
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iabdalkader
Posts: 595
Joined: Sun May 24, 2015 3:53 pm

Re: Change of MCU

Postby iabdalkader » Sun Jul 26, 2015 5:14 pm

No we're using the STM32F427.
seba.wetzel
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Joined: Sun Jul 26, 2015 4:57 pm

Re: Change of MCU

Postby seba.wetzel » Sun Jul 26, 2015 5:35 pm

Ok, I say that because this pdf say it:
https://github.com/openmv/openmv/blob/m ... penmv3.pdf
I want to make my own testing board, what is the exactly MCU that are using?
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iabdalkader
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Re: Change of MCU

Postby iabdalkader » Sun Jul 26, 2015 5:46 pm

seba.wetzel wrote:Ok, I say that because this pdf say it:
https://github.com/openmv/openmv/blob/m ... penmv3.pdf
I want to make my own testing board, what is the exactly MCU that are using?
Sorry about that, the 407 and 427 are pin compatible so the same footprint was used. We are indeed using the STM32F427.
seba.wetzel
Posts: 4
Joined: Sun Jul 26, 2015 4:57 pm

Re: Change of MCU

Postby seba.wetzel » Sun Jul 26, 2015 5:57 pm

Sorry for all this, too many questions, but can i know why use a 427 instead of a 429? Price?
I'm Interested fully about this projects since I read it on hackaday page
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iabdalkader
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Re: Change of MCU

Postby iabdalkader » Sun Jul 26, 2015 6:08 pm

The only difference between the 427 and the 429 is the LCD controller, which we don't need. At some point I made a camera with an STM32F429 and SDRAM, which was never produced I just kept it for reference.

The eagle files naming is confusing, I'll rename them later to OpenMV1 (407 we made a few prototypes) OpenMV2 (This is the KS cam, using 427) and OpenMV-SDR (429+SDRAM)
seba.wetzel
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Joined: Sun Jul 26, 2015 4:57 pm

Re: Change of MCU

Postby seba.wetzel » Sun Jul 26, 2015 6:12 pm

Thank you for your patience! It's good to have talked with you.
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iabdalkader
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Re: Change of MCU

Postby iabdalkader » Mon Jul 27, 2015 5:51 pm

You're welcome :)
victagayun
Posts: 17
Joined: Wed Oct 17, 2018 12:08 am

Re: Change of MCU

Postby victagayun » Wed Oct 17, 2018 12:08 pm

iabdalkader wrote:
Mon Jul 27, 2015 5:51 pm
OpenMV-SDR (429+SDRAM)
Where in github is it?
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iabdalkader
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Re: Change of MCU

Postby iabdalkader » Wed Oct 17, 2018 5:46 pm

victagayun wrote:
Wed Oct 17, 2018 12:08 pm
iabdalkader wrote:
Mon Jul 27, 2015 5:51 pm
OpenMV-SDR (429+SDRAM)
Where in github is it?
Hi, we moved the design files here:

https://github.com/openmv/openmv-boards
victagayun
Posts: 17
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Re: Change of MCU

Postby victagayun » Fri Oct 19, 2018 2:05 pm

iabdalkader wrote:
Wed Oct 17, 2018 5:46 pm
victagayun wrote:
Wed Oct 17, 2018 12:08 pm
iabdalkader wrote:
Mon Jul 27, 2015 5:51 pm
OpenMV-SDR (429+SDRAM)
Where in github is it?
Hi, we moved the design files here:

https://github.com/openmv/openmv-boards
Hello, do you have the hex file or the compiled file for this?
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iabdalkader
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Re: Change of MCU

Postby iabdalkader » Fri Oct 19, 2018 2:31 pm

victagayun wrote: Hello, do you have the hex file or the compiled file for this?
Do you mean the firmware ? No we never actually released any camera with SDR so we don't support it, the design files are there for reference.
victagayun
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Re: Change of MCU

Postby victagayun » Fri Oct 19, 2018 2:44 pm

iabdalkader wrote:
Fri Oct 19, 2018 2:31 pm
Do you the firmware ? No we never actually released any camera with SDR so we don't support it, the design files are there for reference.
Ohh. I thought you did initial testing for V2 on this board....
Thanks!

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