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ddiakopoulos / hiduino

:musical_keyboard: Native USB-MIDI on the Arduino
http://www.dimitridiakopoulos.com/hiduino
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Using Multiple Hiduino Device (Compiled with Name Change) #21

Open ibanman555 opened 9 years ago

ibanman555 commented 9 years ago

I have 4 Hiduino programmed Arduino's as midi controller converters. I have used the compiling descriptions (from Issue #15) and I am able to get each Hiduino to show up as it's own device. But since I am using more than 1 Arduino, I would like to know what needs to be changed in Descriptors.c and other places to have these be completely independent devices. Because, my program seems to keep cycling through each Arduino looking for "something". There doesn't seem to be an issue when I connect only 2 Hiduino's.

Here is what I changed in Descriptors.c:

Line 56 - .VendorID = 0x03EB, Each Arduino has the above code, unchanged Line 57 - .ProductID = 0x2049, I have given each Arduino a different number above.

Line 262 - 267 - USB_Descriptor_String_t PROGMEM ManufacturerString = { .Header = {.Size = USB_STRING_LEN(6), .Type = DTYPE_String},

.UnicodeString          = L"ES8100"

};

I've changed the above to be the same for all 4 Arduino's

Line 273 - 278 -USB_Descriptor_String_t PROGMEM ProductString = { .Header = {.Size = USB_STRING_LEN(12), .Type = DTYPE_String},

.UnicodeString          = L"Controller 4"

};

I've changed the above to have 4 different controller numbers

ddiakopoulos commented 9 years ago

I don't think this has anything to do with hiduino src itself. I've run 8+ devices on a single computer in the past. If I had any guess, it might be some usb device caching in whatever operating system you are using. I was on OSX.

ddiakopoulos commented 9 years ago

I also vaguely remember lufa's USE_INTERNAL_SERIAL also being helpful if set manually.

ibanman555 commented 9 years ago

Thanks for the insight. Can you help by elaborating on how to set USE_INTERNAL_SERIAL manually?

Here is what appears to be happening. Once my software program connects to the Hiduino's, it is transmitting data to each one in order (Tx illuminates for 1 second), but keeps cycling for about 20 minutes. After this, they seem to calm down and send and receive a ping (which means they are connected). Each time it cycles through each Hiduino, my computer freezes for that time frame (can't click on anything). It seemed to skip over the 4th Hiduino quickly the first time around, now it is skipping over the 3rd one quickly.

I'm using Windows 7 64bit, the program being Pro Tools 10. I know that if a harddrive has more than 11 characters it causes issues in this program. Could there be a problem with my devices having 12 character names?

abcminiuser commented 9 years ago

Sorry Scott - been working through my email backlog (moved a few weeks ago, didn't have internet for a while and now I have a million emails to go through).

That behavior sounds like the boards are disconnecting rapidly, or at least confusing the heck out of the host driver. The code you sent me shows you are using USE_INTERNAL_SERIAL as your device descriptor's serial number, so LUFA will substitute the unique device serial into the descriptor when it is requested by the host. Consequently, I don't think it's related to that.

What shows in your Device Manager when all the boards settle down?