- SOLVED - trump card and qubide on a backplane , how ??

[techy]

i can not get a trump card and a qubide to work properly on a backplane .

removed the ram from the qubide , and played around with the addressing jumpers .

i can not find a jumper setting which allows both cards to work correctly ,

Has anyone tried to do this ? and with what settings ?

[jobdone]

This is from the manual :
I is a link
: is broken
-----------------------------------------------------------------------
Base Address | J1 J2 J3 J4 J5 | Comments
-----------------------------------------------------------------------
00000h | I I I I I | UNUSABLE, ROM
04000h | : I I I I | UNUSABLE, ROM
08000h | I : I I I | UNUSABLE, ROM
0C000h * | : : I I I | Use with (Super) Gold Card, Trump Card
10000h ** | I I : I I |
14000h ** | : I : I I |
18000h | I : : I I | UNUSABLE, QL I/O
1C000h *** | : : : I I |
20000h | I I I : I | UNUSABLE, SCREEN 0
24000h | : I I : I | UNUSABLE, SCREEN 0
28000h | I : I : I | UNUSABLE, SCREEN 1
2C000h | : : I : I | UNUSABLE, SCREEN 1
30000h | I I : : I | UNUSABLE, RAM
34000h | : I : : I | UNUSABLE, RAM
38000h | I : : : I | UNUSABLE, RAM
3C000h | : : : : I | UNUSABLE, RAM
C0000h **** | I I I I : |
C4000h **** | : I I I : |
C8000h **** | I : I I : |
CC000h **** | : : I I : |
D0000h **** | I I : I : |
D4000h **** | : I : I : |
D8000h **** | I : : I : |
DC000h **** | : : : I : |
E0000h **** | I I I : : |
E4000h **** | : I I : : |
E8000h **** | I : I : : |
EC000h **** | : : I : : |
F0000h **** | I I : : : |
F4000h **** | : I : : : |
F8000h **** | I : : : : |
FC000h **** | : : : : : |
-----------------------------------------------------------------------

[jobdone]

I would also check on the backplane , if it has a common 5V rail. Some modifications to the cards would be needed if 5V is supplied.

[Derek_Stewart]

Hi,

The Trump Card uses all the I/O and extra memory space on the QL, only leaving the ROM Port area at 0C000h

To use other memory locations, a standard memory expansion is required or a (Super)Gold Card, which handle the memory space differently.

[aalea]

Be aware, that if you use a Minerva ROM that also incorporate the TK2 in the cartridge area, you need to disable it (it's already in trump card, anyway). because this area is need for the qbide.

[techy]

ram on the qubide is removed , minerva rom is without tk2 .

so problem must be all address space required for the trumpcard .

luckily i can use tk2, minerva ,qubide and a qdisk interface ( with 128k less total memory ) without problems .

was hoping to get the trump card in .

[ones' complement]

ram on the qubide is removed

But just removing RAM will not stop the DSMC/DTACK decode on qubide potentially clashing with Trump card in same memory area

(Or have I taken you too literally - is there a RAM disable link)

[techy]

no disable option unfortunately , so ram chip is removed , and the gal too .

and that seems to work ( that side ) .

but still the combo as described fails to work correctly .

i noticed that one of my trumpcards is missing 128k , so maybe the previous owner solved the " problem " that way .


the new minerva pcb i am preparing has a tk2 disable jumper

working with these older computers is always a challenge .

[techy]

if i minimise the memory on the ace card , then all is working .
so with 640k .

if someone has info on how to add more memory , please let me know .