Duinomite has no serial port

[Kommandotolken]

Hello everyone! I am using OS X and I have my Duinomite Mini plugged into my computer. I can see it as a USB device using system report, but I can't find it in the terminal using ls /dev/tty.* or cu.*

My IDE can find my Arduino as a device, so it's something about the Duinomite and not the computer I guess.


Could it be that I have bricked it when I tried to upload a boot loader to it using PicKit3 and MPLAB x? A part from this problem LED2 refuses to turn on when I plug it into a monitor... it seems there is no video output. How should I do?


Should I upload new firmware and boot loader to it using ICSP + PicKit 3 and MPLABX? And exactly how do I do it?




I tried to install mphidflash on my ubuntu and mac, but it won't work, I get the error "./mphidflash-1.6-osx-32 Error: Device not found (is device attached and in Bootloader mode?" when running ./mphidflash-1.6-osx-32...

[JohnS]

mphidflash works with the original bootloader but you've overwritten it.

Sounds like you didn't write the correct one instead or it failed.  Read back what's there and compare?

John

[KeesZagers]

You can easy check if there is a bootloader available by pressing and holding USER button, now pressing RESET and release it. At the end release also USER button. If you have a bootloader available you should see either two blinking LEDs(original bootloader) or only one blinking LED (MPIDE bootloader).

If you do a reflash of the bootloader, be aware to not use the "Programmer to go" button on the PICKIT3 when no program is in the tool. This will blow up the processor.

[Kommandotolken]

Thank you all! I have tried now, and I think I could connect with my duinomite through minicom but I am not sure.

I uploaded firmware to my duinomite Mini and now both the green and the yellow LED are on, they are not flashing just constantly on.


EDIT: I have managed to upload a bootloader and I can see that it exists on the chip since the both LEDs are flashing alternatively... I have been able to see it as a "HID bootloader device" in my linux terminal. I can't get a video output though.

[JohnS]

What do you mean video output?  Where?

John

[KeesZagers]

I guess you mean a video signal either on the VGA or the composite video output. These are supported in the DMBasic 2.7 or later MMBasic versions. As far as I can see now you have the original bootloader installed again. I suggest to upload the DMBasic 2.7 from GITHUB again. Here all the hardware should be supported again. I wrote my own routines based on the DMBASIC. Just delete, add or modify the Basic commands in MPLAB-X.