disketto

Thanks Thorsten, this is what i needed to know.

Hi Hawkeye, yes, i could imagine that the new core is over powered more than a SID module would need. But this is more a development need i have. I mean, i wanted, from the start, to develop my own control software and the LPC based core gave me more possibilities than the PIC based core, so i went for the LPC. At the moment i don't have a PIC based core, so i'd be happy to know the issues that are coming from the different clock frequency etc., and if it is possible to adapt the frequency of the LPC to work with the SID module. Thankz, Vito

Hi Thorsten, why the MIOS32 based solution still needs the PICs to interface with the SID ? There is some matter about frequency or other things related to hardware ? Could you shed some light on that aspect ? Thanks, Vito

Hi all, i just built an LPC 1769 based core box. It looks to me that there is no precompiled software to set up a Midibox SID directly from the LPC based core to the SID module. I am missing the place where i can get it or there's actually no software for this configuration ? If there is no precompiled software, there is some code where i can start from that fits the LPC micro ? What would be different from having the PIC based core controlling the SID unity ? Thankz, Vito

Hi, here is how i patched my MBHP core.. as i said it looks ugly, but at least i got the proper voltage. http://imagizer.imageshack.us/v2/1024x768q90/661/zkKfDa.jpg http://imagizer.imageshack.us/v2/1024x768q90/538/c5kge7.jpg http://imagizer.imageshack.us/v2/1024x768q90/538/rBZdIo.jpg Saluti !

And it works.... well.. it's a bit ugly to see... but now i have perfect voltage... :) Connected as i said, plus the ground pin of LF33 to pin 54 and... magic :) I'll post the pictures... at the moment my phone won't work.. Thanks for the precious help, Verpeiler ! :)

I was putting that apart, when i just gave a quick look at the tracks while smoking a cig... and noticed that the two capactitors C11 and C13 are connected to the LF33... now.. since i knew i had the 5V on the C11, the culprit could be only the LF33. So i decided to desolder that... and bad news... the holes were totally burnt. That should have been happened when i desoldered without a sucker and pulling the 7805 i put there by error... Now.. i have the holes burnt.... i have 2 options: - do it from scratch (it's a pain to desolder every component, and even if i had the patience, i would break a lot of pieces, i'm not an expert) or... (and i hope it works) - cable the LF33 with hops connected to both the C11 / C13 and C12 / C10 Do you think it could work ?

Thanks for the advices ! i was looking for something to clean up the board from the stuff that comes from the tin solder. By the way, yes that what i was doing, measuring from the metal part of the usb to the input pin of LF33, and i got nothing. Could that mean that the line is broken in the between ? In example, i can see clearly that the line goes from usb to the capacitor C11, and indeed i have there 5V measuring from the metal part of usb, to the C11 first pin. I can't see though how the LF33 should receive the 5V from the USB. What's in the between ?

Hi Verpeiler, i have 5V between VS and 5V at J2. Also, on the pin in input on LF33 i don't get the 5V if i read from USB GND to LF33. Here are some pictures: http://imageshack.com/a/img633/7949/ktJ8NO.jpg http://imageshack.com/a/img673/2210/Ua9ep0.jpg http://imageshack.com/a/img538/3899/v2sdIh.jpg http://imageshack.com/a/img910/2309/ItP0Ll.jpg http://imageshack.com/a/img673/2345/BI7qkn.jpg http://imageshack.com/a/img538/7381/FbKENR.jpg http://imageshack.com/a/img661/609/QYsKQ5.jpg

Uhm... the jumper is on J17, but on LF33 the reading is 0.10 between 1 and 2 and 0.0 between 2 and 3. The LF33 is positioned with the metallic part pointing outside of the board... Can this LF33 be broken ? or there are other parts i could check ? Thanks for the help :smile:

Hi all, i am assembling a lpc17 core, to build a midibox sid. i am following the steps reported on the walkthrough web page. In one point it says to check the voltage between pin 54 and 28 of the core board, with USB plugged. It says that i should have a 3.3V, but i have 0.0, no matter what. Anywhere else i check, anyway, i get the measure of 5V (that i think comes from the USB plug). What can i check to understand where i did wrong ?