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Altera_Forum
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21 years ago

QUARTUS 4.2 NIOS 1.1 UPDATE PROBLEM

After update to Quartus 4.2 and Nios 1.1 I have a problem with an 8-Bit Slave (user logic) the adress lines are connected as follows CPU A 9 8 7 6 5 4 3 2 1 ...
Altera_Forum's avatar
Altera_Forum
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21 years ago

the problem still exists, can someone from ALTERA please check what the problem

is,

setup of user logic wrong ?

physical connection to 8 Bit slave wrong ?

IORD, IOWR problem ?

conversion problem ?

the proposed workaround:

multiply the register * 4 before calling IORD and IOWR, results in a multiplication

by 16 for __builtin_ldwio ??? (see macro IORD in io.h)

what will be a workaround, and what I have to change

with next software version ?

should I go back to Quartus 4.1 and NIOS 1.0 ???