Midibox SID keeps formatting, rebooting, formatting, rebooting...

[djvinz]

Hi everyone!

I've build a pretty minimal midibox SID setup:

CORE + SID + DIN + LCD + 2 BankSticks (CS0 and 7)

I've burned the bootloader into the pic (i'm an electronics student, so i have an ICD 2)

Then uploaded mios 1.9f through MIOS Studio 9 beta

This boots up fine.

Then uploaded sid_v2_rc30 through MIOS Studio.

MIOS boots up, and then starts formatting Patch 'A'. (even when I have no bankstick connected!)

0 -> 128 and then hangs, and then a bit later reboots.

Does this all over. I can hear the bleeps coming from the SID. (testtone app is working and pic can control every pin of the sid)

The EEPROMs i'm using are microchip 24LC512 types.

I have soldered the two wires on the back of the CORE as indicated on ucapps.de, are these needed? (one is going to the IIC interface...)

I also tried to change "DEFAULT_ENS_BS_CS" to -1, 0 and 7...

Oh, and i'm using a 6582A SID (= 8580 ?)

Any ideas? I'm getting pretty desperate...

[djvinz]

Some messing in the source has revealed this to me:

Disabling

"call MBNET_Init"

Seems to let me format all patches (and not rebooting after Patch A)

But gives me

"SID1 not available"

(No MBNet Response)

I suppose I have to look up the MBNet connection? (I have to go now, i'll keep you guys updated, any ideas are welcome!)

[fussylizard]

Are you using PCBs/kits from SmashTV or are these your own boards or what?

Since this happens w/out the banksticks attached, it sounds like there might be a wiring/soldering problem with J4 on the core (the bankstick interface).  I'd check for shorts, etc. on those four connections.  I don't know how the FW detects banksticks, but if the SC or SD pins are shorted to Gnd or +5 that might be the problem (a guess).

FWIW I was just looking at the core schematic and the way it is drawn is sort of odd.  It shows SC on J4 with a red line saying "Pin #28 of PIC".  I guess that means it gets connected to pin 28, but that seems sort of weird since that pin is going to J15 already.  You may already have this sorted out, but I would double check on that if you're making your own board or something.  If you got boards from SmashTV they should be fine in which case I'd focus on shorts.

HTH...

[djvinz]

Hi,

thanks for the reply.

I got my PCBs from http://www.mikes-elektronikseite.de/

Yes, i think that schematic is a bit odd too... I don't get why SC and SO connect to RA4 (pin 5) and RD5 (pin 28), but they sure do on my PCB... They measure 1 kOhm between 5V and SD/SC. So that seems to be correct...

Is this correct?

Btw: I indeed keep getting the formatting (of all patches when MBNet is not initialized), even when no bankstick is connected!

[TK.]

See the Troubleshooting Tips

It sounds a bit like Issue 3c

Best Regards, Thorsten.

[djvinz]

Hi Thorsten,

I was lacking that resistor and diode indeed! Didn't find a place where I was supposed to solder them,

so I just put them on the back somehow.

The rebooting issue seems to have been resolved!

Thanks for the help, I'm sorry I missed that troubleshooting page...

I still got the Midibox formatting all the patches over and over, everytime I start up the box....

Anyhow, I can at least get to the interface now!