I just got my OpenMV H7 board in the mail and tried to test it. Following some tutorials, I downloaded the Latest IDE (v2.9.7) and connected the board through micro USB. The board lit up flashing green for a few seconds, then red for a second, then white for a second, then started to flash blue slower. Windows device manager sees the board and is even calling it an OpenMV board but the IDE couldn’t find it…
Here’s what I tried:
Different USB cables
Different USB ports
Updating the USB driver
Updating the USB driver to the driver that came with the board
Uninstalling and reinstalling the IDE
Restarting my PC
“Click the connect button while the Cam is not connected to the PC. The IDE will then ask you if you have a bricked OpenMV Cam. Say, yes, then select if you want to erase the flash drive or not. Doesn’t matter. Then the IDE will wait for you to connect the Cam to your computer. Do that. The boot loader will not overwrite the cam.” (It just times out)
Saying “yes” to if I have a bricked board and selecting OpenMV Cam H7 and following the instructions. (It, again, just times out)
I would probably recommend try to do a hard reset of the board by connecting the reset and boot pins. If that doesn’t work then I would recommend that it might be something to do with your firewall settings or antivirus blocking the connection.
If device manager on my Windows 10 PC can read the board then shouldn’t it be a good connection?
I’ve tried many USB cables and, yes, the power only ones powered up the board but device manager couldn’t see a connection ether. But a couple cables i tried make the board show In device manager but the IDE still can’t read it…
If it’s in the device manager then windows can see it.
What does it appear as? The IDE is looking for a COM port. Does one showup when it’s plugged in? What type of device does it appear as? If it’s just a generic USB device then the driver must be missing. The IDE should have installed this for you.
Okay, the only reason for this is that the IDE is filtering for a specific PID/VID on the serial port.
Can you post the PID / VID of the serial port? It’s in the device details.
The driver bound to it though… which is PID/VID controlled.
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Only other thing I can think of is that there’s something wrong with the main firmware.
A way to reset that is to click the connect button on the IDE. Go through the dialog to reflash the firmware, then plug and unplug the camera. The IDE should find the OpenMV Cam bootloader and reflash it.
If that doesn’t work then the DFU mode bootloader should fix it.
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That said, the issue could be something else. I made the IDE logic pretty detect and saying what the exact error is so it’s definitely not finding the PID/VID combos it’s looking for.
I’m kinda stumped. It’s clearly connected to your PC and has the right PID/VID. But, the IDE can’t find the serial port.
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The only thing I can think of is to reset the board via the DFU bootloader. Please follow the above steps again, then click cancel when the IDE is trying to connect to the board. It will then ask if you want to try the DFU bootloader. Say yes, follow the steps. The DFU bootloader is via DFU-Util which is a third party tool. It will update the firmware and things should work. If not… then I’m not sure what’s wrong.
