12 Nov
2003
12 Nov
'03
9:39 a.m.
Hi,
Do you remember the broken chip on pdp11/34 ?
well, i changed the HC74LS175P with an original SN74LS175N. Now
i can write and read correct data on memory :))) and the RED LED
"PARITY ERR" on the M7891 board turn OFF while pdp11 is running
a program. :)))
BUT
the pdp11 can't boot: the boot loader program stop after few
steps.
some details will follow in the next days; now i can't make any
further test ...
--
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