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[/] [eco32/] [trunk/] [doc/] [history] - Diff between revs 156 and 197

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Rev 156 Rev 197
Line 1241... Line 1241...
 
 
02-Apr-2014
02-Apr-2014
Hardware tests: kbdtest verified, README added.
Hardware tests: kbdtest verified, README added.
Hardware tests: jalrtest verified, README added.
Hardware tests: jalrtest verified, README added.
Release eco32-0.23 tagged.
Release eco32-0.23 tagged.
 
 
 
27-Aug-2014
 
I think I came up with a better solution for the problem of how to
 
quickly transfer a disk image to the FPGA board (several hundred
 
megabytes): instead of transferring the data over the serial line,
 
we write the disk image created on the development system onto
 
a hard disk (or SSD), and then swap drives. This can easily be
 
done utilizing an USB-to-IDE converter (e.g., from an old external
 
hard disk drive enclosure). The disk image is simply written to
 
the disk using the "dd" command, with the whole USB mass storage
 
device (e.g., /dev/sdb) as the destination.
 
 
 
28-Aug-2014
 
Another error in the IDE disk interface showed up yesterday:
 
the two bytes of every halfword are byte-swapped on the storage
 
medium! This error can only be discovered if the disk is written
 
with a non-ECO32 controller and read with the ECO32 controller,
 
or vice versa, which is the reason for the error hiding for so
 
long.

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