FRAM71B

[Dave Frederickson]

(01-22-2017 10:18 AM)Erwin Wrote:  You can try this with POKE "2C012"; "109100" and then try to FREE it.

Hi Erwin,

This is interesting. The problem appears to be with F-Block 0 as it can't be FREEPORT'ed either and I suspect this affects all subsequent Chips.

I think you found a bug, or at least a caveat. This could be why it is advised to use F-Blocks 0 and 1 last.

(01-22-2017 02:02 PM)Erwin Wrote:  

(11-01-2016 09:26 AM)Erwin Wrote:  I found the basic program R64KCOPY (chu06) but it is to get the checksum from existing ROMs in a port ...

maybe some could use it too - regards Erwin

I'm not sure if this program is useful anymore. Per a note by Joe Horn on my copy of the ROMCOPY doc, "Checksums are fully automatic in Rev. E".

Note that this program is for computing IRAM checksums in preparation for creating a ROM image. ROM chips all have checksums of "01".

Code:

>titanchk datacq.bin
TITAN ROM Test V1.10
Unpacking data...
ROM Chip 1 = 01 -> Ok
ROM Chip 2 = 01 -> Ok
ROM Chip 3 = 01 -> Ok
ROM Chip 4 = 01 -> Ok
Checksum(s) ok!

Regards Dave