On Monday 12 June 2006 20:04, howard parkin wrote: > The FPGA code in the small XP device can not be > corrupted by runaway software. There is no internal > connection that connects the internal logic of the device > to the internal EEPROM. The only way to reprogram this > EEPROM is via the external JTAG connections.
I was never worried about the XP itself being corrupted... I was more worred about something going mad in the PC and corrupting the SPI EEPROM that is CONNECTED to the XP6 (that is used to hold the code for the ECP2 AFAIUI). Yes, it's probably a small chance. However a small bit of prevention up front is often worth a lot later on... If you need to call a routine to write-enable (un-write-protect) the SPI BEFORE you write to it, then there should be an even smaller chance of it happening. And if it doesn't actually cost anything, why not? H
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