Lance Tagliapietra wrote:
I bought one of those $7 proms. I have access to an S4 Dataman programmer at work on the assumption that it can program those.Lance Tagliapietra wrote:I have not checked the docs for the programmer yet, but hope to this between the holidays as it should be a bit quieter then. As I recall, it should also be able to read out the contents of a prom. I'll report back after Christmas about this.Reporting back: I checked the dataman web site, and even sent an email to their technical support. Unfortunately, the S4 model does not support the 74S288 32x8-bit PROM. I was a bit disappointed at the news. The next model program up from the S4 does support that part, but thatis not the model to which I have access.Even worse, I have not been able to locate any datasheets for the part. I am not beyond building a programmer for the part, but the datasheet would be required. --Lance
I suspected as much about the PROM programmer you mentioned. Alas.As to datasheets, Jameco does have PDFs of the four-sheet electrical datasheet, but nothing in there about the programming algorithm. I gather from loose talk on the 'net that that's particularly critical.
Oh, well. I haven't made any progress recompiling the kernel driver to force an address into the stack, using Ignatios' recommended patch. The system keeps locking up during the compile process. (I'm guessing either a bank of marginal ZIPs in my A3000, or a SCSI command lockup, except I'm booting with "-I ff" so synchronous shouldn't be an issue. Frustrating.)
I'll keep plugging, I guess. I think I'll eventually settle for a soft-configurable (/etc/something) configuration, using (speculating here) maybe modifications to "ifconfig" to permit address changes in the "ether" address family, like Solaris. I'd love to find a way to program the appropriate part or replace it with something functionally equivalent. (A PAL/GAL?)
>JS<