TK.

It's a trivial challenge, but with the danger that certain users could get the wrong impression that it's a useful option for existing applications ;) I wouldn't use it by myself... Best Regards, Thorsten.

WARNING: unsupported parameter in DOUT_MATRIX n=1 ... sr_dout_row=1 means: the sr_dout_row parameter doesn't exist. means: there is no shift register assigned to drive the rows. means: it makes sense to read in the documentation which parameter allows you to assign the shift register -> http://www.ucapps.de/midibox_ng_manual_ngc.html means: thereafter there is a higher chance that the LED matrix will work. Best Regards, Thorsten.

Btw.: the EVENT_LED "trick" isn't understood at my side, it should work properly without. And if now even such a simple DOUT matrix configuration doesn't work at your side (it looks correct), something seems to be totally wrong. Could it be, that you are using an (old) .NGR script which may overwrite certain configurations? You've edited the right file, and always checked that MBNG didn't report any error or warning during the upload & execution? Or you are using a modified firmware build which causes such problems? Which core module are you using btw.? Best Regards, Thorsten.

If you are not able to execute the Makefile, try to execute following command in the mbhp_mf_ng_v* directory directly: gpasm -p p18f452 -I./src -I ./include/asm -I ./include/share -I ./modules/app_lcd/dummy setup_mbhp_mf_ng_standard.asm Best Regards, Thorsten.

Buy me a board, help to write the documentation and support the users who notice compatibility problems (e.g. missing or conflicting pins) with the recommended board, which is the regular STM32F407 STM32F4DISCOVERY I think that the "bigger" version is only interesting for a small number of persons who are aware of the compatibility issues, can handle that and write their own applications (so, people like you ;-)) Best Regards, Thorsten.

Thanks! Novski will send me his board, so that you will be able to use yours soon :) Best Regards, Thorsten.

The STM32F401 is very limited, most major applications (such as MBNG, MBSEQ) wouldn't fit into the small flash memory. However, before you throw it away, you could send it to me so that I can provide (and test) a MIOS32 variant for this chip for the case that somebody want's to use it for less complex applications like MIDIO128 Best Regards, Thorsten.

Try another hardware module (e.g. MBHP_DIN and DOUT module) after the beer ;) Best Regards, Thorsten.

Now documented in the header of this page: http://www.ucapps.de/midibox_ng_manual_lcd.html Best Regards, Thorsten.

The schematic looks correct. Maybe an electrical problem? Are you able to remove the button matrix from the remaining circuit? Then just connect the row selection signals (IC1 Pin 7, 6, 5) with the column inputs at IC2 with a cable, one after another. Each connection should trigger an individual MIDI event. If this doesn't work, connect an alternative DIN and DOUT module (or a MBHP_DIO_MATRIX if available) and check the same. This ensures that the matrix configuration is correct, and that you know where to continue debugging... Best Regards, Thorsten.

I like the project and hope that we will find people who are interested to program interesting applications :) A comment to the terminology: MIDIbox NG is a MIDI controller application based on MIOS32: http://www.ucapps.de/midibox_ng.html I guess that you mean MIOS32, not NG: http://www.ucapps.de/mios.html Best Regards, Thorsten.

MIDIbox NG supports only a single display type. It's too difficult to handle different types, dimensions and even graphic modes... Only exception: MIDIbox CV V2 - but I spent a lot of programming effort into this, and I'm using the SSD1306 only for special purposes (oscilloscopes) Best Regards, Thorsten.

I had a quick look into the schematic. It looks like you are using 3 rows for the LEDs, and 3 for the buttons, right? In this case I would use row=4 for both matrices (DIN_MATRIX and DOUT_MATRIX), so that the row selection signals will be duplicated (visible at D0..D3 and D4..D7) This doesn't explain why the buttons trigger the events of 3 rows at once, but it might be a good starting point for debugging. Best Regards, Thorsten.

Great! :thumbsup: Best Regards, Thorsten.

+1 for packing it into a .zip file - this saves some disk space. Best Regards, Thorsten.

You are doing everything right. I've no additional idea why it shouldn't be possible to program the target with this IDE version. :-/ You even tried multiple PCs... somehow I've the impression that the LPCXPRESSO module is defective. Best Regards, Thorsten.

You are a champ! :rofl: Could you please elaborate what you've changed exactly? Best Regards, Thorsten.

Are you trying to program the unmodified LPCXPRESSO module standalone, or did you already mount it on the MBHP_CORE_LPC17 module? Best Regards, Thorsten.

Which version of the IDE are you using? At the MBHP_CORE_LPC17 project page v5.2.6 is recommended: http://www.lpcware.com/lpcxpresso/downloads/older Because newer versions are not working (according to some posts in this forum) Best Regards, Thorsten.

Is it still required to select the current instrument via NRPN or is this request obsolete? Best Regards, Thorsten.

It's on my TODO list, needs some time (because of other topics) Best Regards, Thorsten.

Yes, they should not flip back. No pull-up resistors are required. I added to my TODO list that I check this at my side, but I've to open my MB6582 for this, so I can't do this immediately... Or maybe somebody else could help to doublecheck this? Btw.: does this happen with any patch, or only with certain ones? And does this happen if you take the init patch (press SHIFT and then the 4th Soft button under "Ini. Pt.") Best Regards, Thorsten.

Hi, MIDIbox NG is the better choice. Yes, you need a SD Card (regardless if you are using MBNG or MIDIO128), and you can store & edit the configuration file with MIOS Studio. It's described here: http://www.ucapps.de/midibox_ng_manual_fs.html yes, it's not running in matrix mode. Best Regards, Thorsten.

Something seems to be wrong with your transistor circuit. Does the same happen when you disconnect this circuit from RA0, and drive it directly with 5V? Best Regards, Thorsten.

Open the Tools->MIOS32 File Browser in MIOS Studio, connect to your SD Card, upload the hwcfg/standard_v4l/MBSEQ_HW.V4L file. It has already the right configuration to enable the DIN sync output (J5_ENABLED set to 1) Best Regards, Thorsten.