FRAM71B installation

[Hans Brueggemann]

sylvain,
FRAM71-1024 has its TOP FRAM soldered on top of its (standard) bottom FRAM. as a consequence, TOP FRAM is always write enabled, unless you declare it as ROM.

FRAM71B-1024 has a 512 kByte extender board that comes with a dedicated WRITE ENABLE jumper.

did you check that jumper?
(hint: if you haven't yet set WRITE ENABLE, you may want to explore TOP FRAM's contents first. there was an easter egg hidden in the extender boards (highly experimental, there is a chance that not all modules function as expected. At least FORTH, FRTH-41 and MATH should function, though):

Code:

F0x30000: HRDFORTH  (E0000 part)
F0x40000: FORTH         (soft part)
F0x50000: FRTH-41      (E0000 part)
F0x60000: FRTH-41      (soft part)
F0x70000: MATH
F0xA0000: CUR
F0xC0000: FIN
F0xF0000: CIR