Change of MCU

OpenMV related project discussion.
seba.wetzel
Posts: 4
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.
User avatar
iabdalkader
Posts: 920
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
Posts: 4
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?
User avatar
iabdalkader
Posts: 920
Joined: Sun May 24, 2015 3:53 pm

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
User avatar
iabdalkader
Posts: 920
Joined: Sun May 24, 2015 3:53 pm

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
Posts: 4
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.
User avatar
iabdalkader
Posts: 920
Joined: Sun May 24, 2015 3:53 pm

Re: Change of MCU

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

You're welcome :)
victagayun
Posts: 22
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?
User avatar
iabdalkader
Posts: 920
Joined: Sun May 24, 2015 3:53 pm

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: 22
Joined: Wed Oct 17, 2018 12:08 am

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?
User avatar
iabdalkader
Posts: 920
Joined: Sun May 24, 2015 3:53 pm

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
Posts: 22
Joined: Wed Oct 17, 2018 12:08 am

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!
victagayun
Posts: 22
Joined: Wed Oct 17, 2018 12:08 am

Re: Change of MCU

Postby victagayun » Sat Feb 09, 2019 12:10 am

iabdalkader wrote:
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)
Hello, I have ordered 3pcs H7, but may take a while to arrive and nothing to play with. In the meantime, do you share codes and/or hex files of OpenMV-SDR (429+SDRAM) that I can burn and program into the board right away and test?
User avatar
kwagyeman
Posts: 3209
Joined: Sun May 24, 2015 2:10 pm

Re: Change of MCU

Postby kwagyeman » Sat Feb 09, 2019 3:07 pm

The OpenMV Cam SDR was abandoned due to system cost.
Nyamekye,
User avatar
iabdalkader
Posts: 920
Joined: Sun May 24, 2015 3:53 pm

Re: Change of MCU

Postby iabdalkader » Sat Feb 09, 2019 8:31 pm

Yes the firmware for that is long gone and none of the current features existed back then, plus your pin-out will probably be different. You can still find the old SDRAM driver in the source code if it helps.

Return to “Project Discussion”

Who is online

Users browsing this forum: Bing [Bot] and 0 guests