On Wed, 2 May 2001, Ruud Baltissen wrote: > If one can reprogram his PC's FLASH-BIOS, it cannot be so difficult to add > this feature to our new design as well. > On the other hand I like the suggested idea of loading the KERNAL in SRAM > but not from EPROM but from disk like an OS. Even a combination should be > possible. A flash ROM can be reprogrammed a couple of hundred thousand times. Wiring it to the system can be as easy as connecting a static RAM chip. The read/write sequence that enables writing to the flash may depend on the chip manufacturer. But you won't need any special voltages or circuitry for that; only software is involved. For the 2-megabyte flash Am29LV160D, the shortest writing sequence is 2 or 3 bus operations per byte. To avoid accidental rewriting of the flash, you could of course add a switch to the -WR line. Marko - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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