Alkex

Hi, I have access to a few sega megadrives, does anyone know if the onboard YM2612 chip will work on the OPL3 module? Thanks in advance Alex

Hello, I would like to make a midi instrument out of an old guitar, I want to use the fretboard as a kind of potentiometer With 5V at top of neck, and a resistor between each fret downwards. I could then use the string to "read" the voltage at the touching fret. The main question, being a complete clueless sod in electronics and electricity is: What resistors do I need to divide 5V into 22 more or less equal frets (sections)? Is there a formula I can use maybe? Thanks in advance, Alex

Thanks for this info Thorsten! ...but no luck Maybe I have bought an unhappy broken Lcd... I'll persevere and try rewiring etc Best regards, Alkex

Hello! I just got a nice 40x2 backlit Lcd but can't get it to work on my midiio128 (default bootloader ID) TIANMA claim on their website that it's KS0066U compatible... What is this? is it compatible with Mios or do I need to change the Id? Is there an easy way to "shift" display modes without removing chips? here are the details including datasheet to my model: http://www.tianma.com/comparative_table/tm402c.html Many thanks in advance for any suggestions Alkex

Thanks thorsten! You are exactly right, I had forgotten the pullup, unfortunatly, it looks like I'll be on the lookout for another chip though, i was monitoring the chip directly from audio out pin and blew it up when I pluged the jack in (obviously made a connection with ground for a fraction of a second), very bad idea! Best regards and thanks again for the support Alkex

Thankyou Thorsten, I'll bare that valuable info in mind. Best regards, and thumbs up on your exciting projects! Alkex

Hello, I just set up my first midibox Sid without cs that I plan to integrate into a midibox64 piano. Its works ok with sidplayer (considering I havent the right capacitors yet) and plays the melodies. The problem comes in when I install "setup_8580_without_cs.syx" Here's what happens: www.alkex.com/sidproblem.mp3 It seems to Lock on the startup sound. Anyone experienced this problem? My current setup: MIOS V 1.7 8580 sid chip Many thanks in advance Best regards, Alkex

Hi folks! I've just finished my little 25 note midibox keyboard! I've based the code on the MIDIIO128Â and done some customizing to the code: +1 octave transposer button -1 octave transposer button +1 semitone transposer button simple 16 note sequencer (like on my beloved PROONE synth :-*) Now I would like to store the 16 notes of the sequence into memory so I can powerOff and recall them later. I used 17 variables in app_defines as follows: ;; ========================================================================== ;; INTERNAL 16 STEP SEQUENCER NOTES ;; ========================================================================== SEQ1Â Â Â Â Â Â Â Â Â Â EQU 0x030 SEQ2Â Â Â Â Â Â Â Â Â Â EQU 0x031 SEQ3Â Â Â Â Â Â Â Â Â Â EQU 0x032 SEQ4Â Â Â Â Â Â Â Â Â Â EQU 0x033 SEQ5Â Â Â Â Â Â Â Â Â Â EQU 0x034 SEQ6Â Â Â Â Â Â Â Â Â Â EQU 0x035 SEQ7Â Â Â Â Â Â Â Â Â Â EQU 0x036 SEQ8Â Â Â Â Â Â Â Â Â Â EQU 0x037 SEQ9Â Â Â Â Â Â Â Â Â Â EQU 0x038 SEQ10Â Â Â Â Â Â Â Â Â Â EQU 0x039 SEQ11Â Â Â Â Â Â Â Â Â Â EQU 0x040 SEQ12Â Â Â Â Â Â Â Â Â Â EQU 0x041 SEQ13Â Â Â Â Â Â Â Â Â Â EQU 0x042 SEQ14Â Â Â Â Â Â Â Â Â Â EQU 0x043 SEQ15Â Â Â Â Â Â Â Â Â Â EQU 0x044 SEQ16Â Â Â Â Â Â Â Â Â Â EQU 0x045 ;; ========================================================================== ;; LOOP POINT(number of recorded notes) ;; ========================================================================== SEQNBRÂ Â Â Â Â Â Â Â Â EQU 0x046 I'm struggling with the MIOS_FLASH_Read/write functions and havent a clue how to store and recall 0x030...0x046 many thanks for an example or explination Alkex