I got some strange issue …
I got a MB64e V2.1 (with Mios V1.6) and old bridge from SC to Pin 22 on the core …
The MB64e worked fine without the bankstick …
i tried to connect a 24AA256 … and at startup, I only got this message :
’ Formating Bankstick 1" …
during 10 sec aprox.
then it re-boot and display the same message … and stay like this hour and hour …
I allready double check the wiring and the soldering …
any idea ?
Hey, I don’t know, but you probablly need to switch to 1.7 and change the bridge. Maybe 2.1 was written to use the new O/S.
Justin
Thorsten ? you confirm that ?
Hey, I’m not Thorsten ;)
But the release of MB64e V2.1 was definitely before the release of MIOS 1.7 (with the hardware change).
So I think it should work without MIOS 1.7 and the hardware change.
Otherwise the hardware change is that easy (just resoldering one wire) that you should really change to the new design and the latest MIOS version.
So even if it doesn’t seem to be a MIOS version problem I would give the V1.7 a try…
Raphael
P.S: Sice MIOS1.7 my LED-Rings are much brighter ;D
Just btw: I know that you checked the soldering, but connector stuff is always a little tricky.
Check the voltages on the 24AA. The supply and the ground lines. Perhaps something is switched.
Also, the 24AAs seem to make lot more trouble than the 24LCs. I also used AAs in my SID and I switched them all to LCs, because random sounds were coming out (!).
Although this issue was solved by the hardware change, so really *do* consider doing it.
Good luck anyhow!
i modified the core , uploaded the MIOS v1.7 and tested it i check the voltage on the 24AA256: 5v …but still the same issue …
startup :
MIOS V1.7
© 2004 T.KLOSE
then really quick :
* LOADING SETUP
* FROM BANKSTICK
then
* Formatting
* Bank 1
during 5sec.
then
MIOS V1.7
© 2004 T.KLOSE
then really quick :
* LOADING SETUP
* FROM BANKSTICK
then
* Formatting
* Bank 1
and stay like that …
???
ISSUE SOLVED !
On the CORE , R2 ( SD -> 5V ) was 10K instead of 1K !!!
Replacing to the right value : 1K : works fine now !
Today proverb :
… if you’ve double checked your hardware … triple check it ! 
hum .. in fact .. unsolved …
it works 1 times …
and then .. still the same …
It works until i upload my config via Serge vmidibox64e … ???
There must still something be wrong with your hardware. As PayC wrote, he noticed similar obscurities with his 24AA256… maybe you should try different cable lengths or so… thats all what I can say to this topic.
Have you also tried a “MIOS BankStick 32k” Request and Send with SysExBox?
Best Regards, Thorsten.
Have you also tried a “MIOS BankStick 32k” Request and Send with SysExBox?
i can’t because MIOS doesn’t boot … it stays in Formatting bankstick … :(
i’m gonna buy some 24C256 to see if it comes from the 24AA256 …
but now i can say it’s not an hardware problem …
to give you some more technical backgrounds: in mios_bankstick.inc of the MIOS source code you will find the MIOS_BANKSTICK_Write_Poll loop with the note “memo: time out counter should be inserted here!”
This is the only point where a BankStick transaction can hang, and the reason for this is either a damaged EEPROM, or an unstable connection. So, definitely a hardware failure (which is not handled by MIOS yet, but for which I don’t see a strong requirement)
Another point of interest: mb64e_bank.inc, search for “MB64E_BANK_WriteBankStick” you will find following comment “reset core if bankstick not available anymore (just for debugging)”
This case can happen if the BankStick is disconnected during a write operation, or when you’ve a bad junction.
So - both cases explain what you’ve noticed, therefore no bug, but a deterministic behaviour (from the software point of view)
Best Regards, Thorsten.
