Khron_X Posted July 30, 2009 Report Posted July 30, 2009 Greetings everyone...I'm a long-time audio DIY-er, but i've only quite recently started dabbling with/in the digital (hardware) world.Now, for my big question: is there anyway to directly link 2 MBHP_IIC_MIDI modules to an MBHP_USB_PIC? (or to something like THIS )I'm aware that buying an interface would be far simpler, but... there's no DIY satisfaction in that :PMany thanks in advance,Chris Quote
Eduy2kk Posted July 30, 2009 Report Posted July 30, 2009 Hi, read this: http://www.ucapps.de/mbhp_usb_pic.htmlI use a PIC 18F2550 with TK's soft USB-PIC + 1 module IIC with the PIC 16F88 and it works well or also a PIC 18F4550 + 4 IIC, but only 2550 or 4550 the midi in does not work well for the famous BUG of the UART.I run this hard in Windows XP OS only.Eduardo Quote
Khron_X Posted July 30, 2009 Author Report Posted July 30, 2009 Oops :-[ I guess i rushed a bit, and didn't read that page thoroughly enough. (And i thought the module connected to those 4 IIC interfaces was a Core module...)So Eduy2kk, which configuration WORKS? USB-PIC + 1 IIC, or 4 IIC? And which PIC is in the interface, 2550 or 4550?(I understand, you're not a native english speaker, but your reply is a bit confusing :) ) Quote
Eduy2kk Posted July 30, 2009 Report Posted July 30, 2009 Lamentably my language is not English. I speaks Spanish, excuse you for my bad english.In the link of the previous post explains in english well like to construct and programme it.The module USB-PIC is not a module with the MIOS but with a specially designed soft. If you think to use only a one port of midi in / out you can use 2550, if you think to use two or more midi in / out must use 4550.In the post that I you put later you have all the information to be employed at this, http://www.ucapps.de/mbhp_usb_pic.htmlhttp://www.ucapps.de/mbhp_iic_midi.htmlAlso you can see 2 converters and the GM5 is it the best alternative and works well on OS of PC and Machttp://www.ucapps.de/mbhp_usb.htmlhttp://www.ucapps.de/mbhp_usb_gm5.htmlEduardo Quote
Khron_X Posted July 31, 2009 Author Report Posted July 31, 2009 I didn't mean any criticism or offense about the language, just that i didn't understand 100% what you meant, that's all :) (I prefer to ask for clarification, than assume the wrong things :P )Hmm... Is there any special reason why there's the "one channel restriction" for the 2550? I carefully read the whole USB-PIC page yesterday, and (i think) the only reason why the 4550 is recommended is that TK only got a post-12-2007 4550 with the EUSART bug fixed, but not a "fresh" 2550.But if there's a technical reason, i'd be curious about it. From what i could see in the datasheet, the big difference is 3 extra i/o ports (10 vs 13), and some other minor different features, which might not be used here.The GM5 isn't really an option. I can't know WHEN the minimum order quantity will be met, plus i can put together the pic-based version quite easily, and 100% diy :) Quote
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