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Newbie LPC17 / MidiboxNG Question


Stephan_WE
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Hi,

we just uploaded the midiboxng application the first time. In Bootloader Mode(J27) we can upload the Midibox NG Appliciation. After removing the jumper J27 we can send commands (help/system) and get a response. As soon as we reboot the device, no communication with the application is possible any more. We see "Midibox NG" in MIDI IN and MIDi OUT within Mios Studio. No response on query.

 

What's wrong ?

 

Best regards

Stephan

 

 

 

 

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You have to install the bootloader without the jumper J27. You can use jumper J27 as a failsave in case the bootloader crashes and you do not have access to it the usual way (without J27).

 

Try removing Jumper J27 and upload the bootloader again. After that you can upload the midibox_ng application.

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Hi, we installed the bootloader via LPC-Link. We than connected via the usb connector on the midibox as described here http://www.ucapps.de/mios32_bootstrap_newbies.html and uploaded the midibox_ng application. I don't understand how we can change this. After reset, we see the "Midibox" IN and OUT Devices but get no response within the MIOS Terminal.

 

I thought, that we have to install the bootloader only once.

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Indeed you have to install the bootloader once via LPC Link (project.bin), but you can upload the bootloader any time after that via usb on the Core PCB (project.hex) if you want to change the lcd type for example.

 

After the bootloader is installed the first time, you can upload an application via usb on the Core PCB, but you have to remove Jumper J27 for that.

Edited by John E. Finster
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