Search found 7 matches

by LaxChen
Thu Jun 07, 2018 3:32 am
Forum: General Topics
Topic: Want to use openMV in STM32F429DISC
Replies: 10
Views: 278

Re: Want to use openMV in STM32F429DISC

Remove anything you don't need. It is sufficient to just comment out the pymethod and the link in the c function pointer dictionary in py_image.c thanks! Finally, I dont remove any. I connect pins fllow the openmv sdr and try to use SCCB to read OV7670 ID via MDK project , but it does not work. Tod...
by LaxChen
Mon Jun 04, 2018 10:37 pm
Forum: General Topics
Topic: Want to use openMV in STM32F429DISC
Replies: 10
Views: 278

Re: Want to use openMV in STM32F429DISC

Hi guys,
when program run in func sensor_init(), it will allways keep in HAL_I2C_IsDeviceReady(). So I make DEBUG=1, however the file size overflow .
so how can I to reduce the firmware.elf file size ? Remove some img module which not working well in F4 ?but i dont known which one.

thanks! :D
by LaxChen
Sat Jun 02, 2018 4:06 am
Forum: General Topics
Topic: Want to use openMV in STM32F429DISC
Replies: 10
Views: 278

Re: Want to use openMV in STM32F429DISC

kwagyeman wrote:
Fri Jun 01, 2018 11:33 pm
Yes, the OpenMV C main firmware is a different USB application. You need to fix the issue for both the bootloader and the application.
I found that problem is uninit SENSOR and I have a 7670 which openMV did no support . but I can imitate other sensor driver.
by LaxChen
Fri Jun 01, 2018 11:24 pm
Forum: General Topics
Topic: Want to use openMV in STM32F429DISC
Replies: 10
Views: 278

Re: Want to use openMV in STM32F429DISC

Today, I use cmd to make an assembly file arm-none-linux-objdump -d bootloader.elf > boot.dis AND I found a symbol name OTG_FS_IRQHandler, but I want is OTG_HS_IRQHandler ,so I change stm32fxxx_it.c /.h . after that PC can recognize USB and I can see OpenMV Cam USB COM Port :D but a new problem is e...
by LaxChen
Thu May 31, 2018 10:09 pm
Forum: General Topics
Topic: Want to use openMV in STM32F429DISC
Replies: 10
Views: 278

Re: Want to use openMV in STM32F429DISC

kwagyeman wrote:
Thu May 31, 2018 3:35 pm
The bootloader is just a VCP device.
thanks for your answer,
I try to make a MDK project with the same code and then USB work normally. So I think maybe I should figure out ld file and starup.s . :D
by LaxChen
Thu May 31, 2018 4:34 am
Forum: General Topics
Topic: Want to use openMV in STM32F429DISC
Replies: 10
Views: 278

Re: Want to use openMV in STM32F429DISC

Hi, figuring out the USB stuff is a complete nightmare. We can't really help you with that. All we can tell you is that the top level application code will run on that board. As for the USB stuff, you have to figure that out yourself. The binary targets the STM32F427 directly and ST parts are usual...
by LaxChen
Thu May 31, 2018 12:10 am
Forum: General Topics
Topic: Want to use openMV in STM32F429DISC
Replies: 10
Views: 278

Want to use openMV in STM32F429DISC

HI, guys ! I have a STM32F429DISC board, and I found that: https://hackaday.io/project/1313-openmv/details .So that I want to port openMV in my board . Then I change BOOTLOADER code: use USB_HS_IN_FS make a VCP device , change STM32F427xx in STM32F429xx and some other F429 config. after that , I cp ...

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