hello all of you, firstly, I have to thank you before anything. you produced and produce a very big framework with a very nice community. I read a lot, I'll continue to do that to be more aware. But At this point (just before to buy) I need some help. I just hope you won't find my question as a very newbie question and that it won't disturb you... I read http://www.midibox.org/dokuwiki/doku.php?id=mios_pic18f4685 about PIC18f4685 indeed, when I read http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en026324 and http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en010297 , I can see the differencies between them about internal EEPROM, internal flash and RAM. I read that MIDIO128 (128 buttons + 128 leds) is very ok with PIC18F452 I only produce and receive midi messages, no sound (no chip for that in the box!) My project will involved 98 buttons, 103 pots and 90 RGB leds. I'll use 2 core + 4 AINx4 for pots 3 DINx4 for buttons 2 DOUTx4 (one for multiplexing 8x8 rgb leds with 2 Darlington Transistor Arrays, the other one for the same kind of matrix, but smaller i.e 8x3 + 2..) 1 LTC do you think I'll need PIC18F452 or PIC18F4685 ? I read that modification in os and app could it be required to use the PIC18F4685 (http://www.midibox.org/dokuwiki/doku.php?id=using_pic18f4685 : "Note: PIC18F4685 and PIC18F4682 are not 100% binary compatible to PIC18F452. RAM from 0×60-0x7f is not directly accessible. BANKED accesses have to be used instead.") I hope I'll find infos about that :) long life to the community ps: my project will be published asap and ALL will be available (code/schematics/design/photos)
