R4 Minima connection fails - NO PORTS DISCOVERED

Hi guys!

Using IDE 2.0.1 with D1 Mini and Uno R3 with no problems regarding connection.
Today first contact with R4 Minima, no connection. Tried different USB cables and all 4 USB ports (no hubs), even a second R4 board. Double clicking reset. Nothing...

IDE is updated to my knowledge. No obvious(!) interference from AntiVirus.
Power is on board (green led on, yellow flashing). Device manager does not recognise this device.
I'm pretty sure this is not about hardware. Qualified help is very much appreciated! :slight_smile:

@n00bzilla

please update your IDE.
Current version is 2.2.1

in 2.0.1 some discovery logic is missing, and the Minima requires the correct handling of DFU Discovery

Also make sure you have the latest Arduino Renesas UNO platform version which should be 1.0.5

u.

Thank you, I wasn't aware that the IDE was not up to date, as I clicked the update button just some hours ago. 2.2.1 is now up and running, same behaviour as before.

Please, can you explain what Arduino Renesas UNO platform version means? Is that a hardware version of the processor chip? Where can I find this? And how can I change this?

Please use the screenshot below as reference for my explanation

A platform is a set of source code, supporting tools and compile/upload recipes.
Using the boards manager (1) you can have access to installable and installed platforms.

In the search box (2) you can type the name of the board you're trying to install support for.
It will give you available results.
The platform you need to install is Arduino UNO R4 Boards.
The button (3) in my case says "UPDATE", but if you don't have it installed at all it will say "INSTALL".

Install this platform and your board should be recognised.

Thanks again. In my case it says REMOVE. I already had 1.0.5 installed.
That puts me back to square 1... :frowning:

After connecting a 8266, I get the connection ping and can see the device in the device manager as "USB-Verbundgerät" (USB composite device(?)).
R4 still does not get recognised on this level, no ping, nothing. This seems to be the lead, unfortunately I have no skills to further investigate this.

Using USBDeview, I tried to tidy up what was gathered over the years. No trash found. Deleting the device an reconnecting still not works for R4 but perfect for 8266.

This is a strange behaviour.
Have you tried to double-press the reset button?

Maybe you have a bricked board for some reason or one without our bootloader, but our boards don't leave the factory without that.

Can you tell me where you purchased it?

Yes, tried double-reset, got the breath but no change.
I purchased two boards at Reichelt Elektronik, after the checkout process on the arduino page failed twice. One package seemed to be opened before, the other seemed untouched. Both behave identically.
I'm on Windows 10.

No DFU capable USB device available
Failed uploading: uploading error: exit status 74

I think I'm gonna send them back and either go to R3 or transfer this project to a revolutionary 4x8266 architecture... B)

Thanks for the help!

I ordered 2 R3 via Ardiuno.cc, this time the checkout went flawless...

1 Like

Thanks for your help.
As far as I got it, my problem is different, because my device does not get connected at all via USB (no device in the device manager, no connection ping).

But I learned that there are cruel things like charge-only USB cables. I'm not sure if any of the cables I tried was suited for data transfer. Maybe that's the simple solution, it would explain everything. I'll report back on this...

Now, using a data-cable, I get the device connected. Tada!
It's a genius' idea to make different types of cable look identically.

Nevertheless, no updates work, but I have leads to follow on that issue...

1 Like

Again, I hit a wall...

"DFU-RT Port" has no drivers installed. I can't find any.
Seems, dpinst-amd64.exe may be part of the solution, but I can't find this on my computer, either. Research leads me to the conclusion that this exe has become obsolete.

I'm really not good at this administrating stuff. Should I try to install dpinst-amd64.exe?

Have you tried the boards in a different computer?
Please share a screenshot of the device manager.

Yes, connection including upload worked on my laptop (Win10), problem is on the PC only.
image

Lose translation: Drivers not installed. No compatible drivers found. Click "update drivers".

Clicking the button does not result in finding drivers.
Thank you for your support.

This thread can be closed unsolved. I just got sick of this and sent the R4 back. Switching to R3 with working upload connection. Thanks to everybody for helping, at least I learnt something...