NOV64d with HEPAX STD & HEPAXRAM & CCD

[Sylvain Cote]

You can change the XROM ID directly with HEXEDIT without any effect.

Procedure I do when I want to reset a NoV HEPAX RAM block:

Code:

"OK"
8    CLRAM
9    CLRAM
10   CLRAM
11   CLRAM
OFF  ON      // power cycle
HEPDIR       // X is set to 2600

Assuming no other module is configured in the NoV module or plugged-in, the above initialization procedure should produce the following contig:

Code:

 XROM  ID    Prev. Page   Next Page
---------- + ---------- + ----------
0x8000 00B | 0x8FE7 000 | 0x8FE8 009
0x9000 00C | 0x9FE7 008 | 0x9FE8 00A
0xA000 00D | 0xAFE7 009 | 0xAFE8 00B
0xB000 00E | 0xBFE7 00A | 0xBFE8 000

If I insert a physical the CCD module in port 3, I get a XROM conflict (11) and page 8 take precedence over page 13.

Here we have three options:

1. with HEXEDIT, manually change the XROM ID with a non conflicting value (ex. 0x8000 001)
2. if the HEPAX RAM block is empty, clear the conflicting HEPAX RAM page like this:
   
   Code:
   

   "OK"
8
CLRAM
OFF
ON       // power cycle
HEPDIR   // X is set to 2600
   the above should produce the following configuration:
   
   Code:
   

    XROM  ID    Prev. Page   Next Page
---------- + ---------- + ----------
0x8000 00F | 0x8FE7 00B | 0x8FE8 000
0x9000 00C | 0x9FE7 000 | 0x9FE8 00A
0xA000 00D | 0xAFE7 009 | 0xAFE8 00B
0xB000 00E | 0xBFE7 00A | 0xBFE8 008
3. redo the full initialization procedure to produce the following config:
   
   Code:
   

    XROM  ID    Prev. Page   Next Page
---------- + ---------- + ----------
0x8000 00C | 0x8FE7 000 | 0x8FE8 009
0x9000 00D | 0x9FE7 008 | 0x9FE8 00A
0xA000 00E | 0xAFE7 009 | 0xAFE8 00B
0xB000 00F | 0xBFE7 00A | 0xBFE8 000

edit: option #2, double-linked list data updated