Jump to content

Finally got my MBSEQv4 working...yippie...but have a couple of questions now...


nuke
 Share

Recommended Posts

reeaally nice stuff in there wohoo...

but...in my old seq3.4-layout i have some quick access buttons implemented, like: Direction, Length, Groove and Mode...

is it possible to add these aswell in the v4 ?...can´t find them in the HW-configfile...

and my SD card is somehow not working as it should...it reads/writes within the MBSEQ, but when switching to Mass Storage, Windows installs a new device "STM SD blah..." and i see that in explorer, but when i click it, it says "not formatted" ...i tried different cards with different formats FAT32 or FAT also tried in WINXP and WINDOWS 7...with no luck...

since i did layout and solder the board myself, it might be only a faulty connection...but why does it work when using it within the midibox?

btw. the schematics on ucapps for the sd-card labels the connector to the core as J1 ...shouldn´t it be J16??

Link to comment
Share on other sites

still no luck with the sdcard...

this is very strange...although i can write and load within the MBSEQ4 i´m still not able to get a working connecting with SD-Mass-Storage and windows...i also tried the usb_mass_storage_device_v1_1.zip with same results...the device shows up in explorer but windows pops up with a "volume not formatted". when i try to access it, it says "invalid function" or in german "unzulässige funktion"...midi via USB is working and uploading code also...but sometimes looses connection in MIOS-Studio2...

is it possible that i fried the stm32 somehow in a minor way?

in some other schematics for the stm32 i saw they use sometimes different resistor values for the usb-datalines (22 Ohm instead of 27 Ohm) paired with some caps (47pf) to ground like shown here : example

is it worth trying these changes...dunno if it would help...maybe someone has a clue or can point me in the right direction...

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...