padjoe.thornton

Hi again Thanks for your replys After TK's kind help in an earlier question regarding the midi connector I was using, I uploaded MIOS with just the Core module connected, I then connected two sids and 1 bankstick And uploaded the midibox_sid_v2 hex file and worked fine It then rebooted and I got a screen flashing the Sid application name to Launching CS, sid app name to launching CS .....on and on The flash wasn't too fast, but it wasn't slow either Like it was trying to load but something was preventing it? It wasn't switching on and off. Has this happened to anyone before? Thanks PJ 2 x 8580 sids 1 x core 1 x bankstick 2x20 LCD screen To be connected to minimum control surface

Hi again Total newb here but I'm nearly there just installed sid 8580 .hex but I'm only getting a flashing lcd screen saying launching cs I just can't find anything about this on the site thank you

Thank You Thorsten I bought a new Cakewalk/Roland UM-3G midi usb interface, and after uploading the windows 7 64bit drivers, it works perfectly. Thank You for your help much appreciated PJ

Hi Thorsten, Thank you very much You are dead right its cheapo, Have you ever been to dublin, thats a word we use a lot to describe things cheap (with the o at the end) :) I bought it online off ebay and it looked ok, looking at the blacklist its very like the one also for sale in maplin for 29.99 I'll pick up a decent one tomorrow in a proper music shop and let you know, I'll also get the extra parts I need for testing, is it ok to use a midi to usb interface cable or should I get a decent box? also do you have any recommendations of any tried and tested midi to usb, I'm on a budget but want to buy something that will work ok I'm using windows 7 Thank You Much Appreciated PT

here is a picture it has male midi out and mid in and a usb plug Thank you

Thank You for your reply much appreciated I need to purchase a few things for these tests so will be able to update tomorrow what is happening I'm actually using a usb to midi cable by a company called plus com, should i be using something better?

Hi I'm building a two sid one core, using a pic18f4685 bought from mike. I'm powering the core with 5vdc into junction 2 I'm using a midi to usb cable, out to in and in to out went over all my soldering, checked voltages where they should be and am using a testing dc power supply, that is showing no short circuits, I'm trying to upload the hex file trying to upload mios v1_9, I just took the pic from the package wearing an anti static wristband connected to ground. checked pins of midi out and in all soldered fine, going to go through more test with a multimeter but all obvious problems seem to be fine, Is there anything I'm not doing, and god forbid could the chip be faulty? device id is at 0, should I be trying another id? it just says no response from mios8 or mios32 core, thanks in advance

Hi M00dawg thank you for your response, I will explain in a better format. Ok I have tested the whole circuit. Looked at the different connections, tested them with a multimeter, all is ok. Now I disconnected the wire that runs from pin 2 of the 7809 to the positive 5 vdc. when I check the output from pin 3 of the 7809 and touch the 5v earth I get 9vdc when I touch the 5v positive and negative i get 5vdc Now when I connect this wire and touch the positive wire of the meter to the output to the sids (or pin 3 of the 7809) and to the earth of the 5vdc, I am getting between 7 and 8 volts or less it varies, now everything is connected fine, and its just the circuit im testing, it is not connected to anything else. apologies for bad punctuation and bad grammer, im a newbie here. what do you think? thank you

Hi M00dawg ye if you look at the schematic for the power supply optimised, the output for the sids is 14vdc http://ucapps.de/mbhp/mbhp_8xsid_c64_psu_optimized.pdf now looking at it today and testing it, I'm saying you get 5vdc from the bottom output 5vdc going to the core now there is a connection from the 5vdc going to pin 2 of the 7809 and my observation tells me the reason why this is because its adding the 5 vdc to the 9vdc and giving a 14vdc output to the sids, now when im testing this it is not working basically when i connect the wire that brideges 5vdc with 9vdc to get 14vdc it is dragging down the voltage and getting me a lot less than 14vdc do you get me? thank you man

Thank You

Hi I'm setting up the optimised power supply for 2 sid one core http://ucapps.de/mbhp/mbhp_8xsid_c64_psu_optimized.pdf I've connected all the parts But when I connect the cable that joins 5v + 9v to make 14 v it is dragging down the power supply I am getting 9v out of pin 3 of the 7809 and 5 v out of the bottom output I connect the wire between the two and it drags it down I am using a 7pin din chassis socket and a uk power supply checked every part of my circuit and everything connected fine Continued Question So for the core I need 5v dc For the two sids which are the newer sids 8580 need 9v dc So If I left out the wire that bridges the 5vdc with the 9vdc on pin 2 and 3 of the 7809 and just connected to the 9vdc sid and core 5vdc, there would be a drop in voltage on the sid end?would there? Is it better to have the 14vdc and 5vdc for noise reduction? and then ofcourse it gets regulated at the sid end, I'm a little confused but the main question why is it dropping the voltage when I connect the 5vdc to the 9vdc at pins 2 and 3 of the 7809? any ideas much appreciated PJ

Hi everyone I'm really enjoying this project Great forum with nice people I have built http://www.ucapps.de/mbhp/mbhp_8xsid_c64_psu_optimized.pdf and am using 2 sid one core I'm connecting the modules firstly to a safe power supply where im going to power it up and if there are any shorts it will tell me, I wanna do this to be safe with the circuit, and so I can Identify any problems before I use the C64 PSU I'm using the newer SID chip the 8580 and using a C64 power supply that came with the newer C64. I'm finding it difficult to identify all the PINs especially PIN 6 coming from the C64 PSU and into the socket and into the power switch on the left of the diagram. I'm taking it that PIN 7 is 9VAC, PIN 2 is Ground, and PIN 5 is 5VDC Here is a schematic of the C64 power supply http://www.zimmers.net/anonftp/pub/cbm/schematics/computers/c64/c64extps.gif This is probably a complete Newbie question but I just want to be sure Thanks in Advance PJ

Thank you for your help much appreciated I'm taking it that even though I'm just using 2 sids and one core, I'll have to add the extra 2 x 2200uf/16v cap, as in (5) the additional cap at the last SID module reduces high frequency digital noise Thank You

Also in this http://ucapps.de/mbhp/mbhp_4xsid_c64_psu_optimized.pdf and this http://ucapps.de/mbhp/mbhp_8xsid_c64_psu_optimized.pdf where multiple sides are used there is no connection to junction 1 of the core? I'd like to know why? Thanks

Hi, I'm building a midibox sid with 2 sids (stereo) and one core first and then after testing I'm hoping to add the minimal control surface, I'm reusing the C64 psu, and it's the 8580 chip I'm looking at the website at all options and these all came up, For fear of getting this wrong, although I would be testing it with just the ic sockets in each, I'd like to know which option I should work off? http://ucapps.de/mbhp/mbhp_sid_c64_psu.pdf http://ucapps.de/mbhp/mbhp_4xsid_c64_psu_optimized.pdf or this which is what I'm thinking to use; http://ucapps.de/mbhp/mbhp_8xsid_c64_psu_optimized.pdf and this means I need to remove the 7805 from the core?