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Altera_Forum
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10 years ago

Qsys Address Mapping Query

I have a Qsys design in which NIOS II data master is connected to Avalon slave of peripheral (Stepper driver). Here the width of the address bus of the peripheral is 3-bits. So, when I assign base ad...
Altera_Forum's avatar
Altera_Forum
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10 years ago

You are missing a bunch of interface property assignment, example below:

add_interface s1 avalon end

set_interface_property s1 addressunits symbols

set_interface_property s1 associatedClock clock

set_interface_property s1 associatedReset reset

set_interface_property s1 bitsPerSymbol 8

set_interface_property s1 burstOnBurstBoundariesOnly false

set_interface_property s1 burstcountUnits WORDS

set_interface_property s1 holdTime 0

set_interface_property s1 linewrapBursts false

set_interface_property s1 maximumPendingReadTransactions 0

set_interface_property s1 maximumPendingWriteTransactions 0

set_interface_property s1 readLatency 0

set_interface_property s1 readWaitTime 1

set_interface_property s1 setupTime 0

set_interface_property s1 timingUnits Cycles

set_interface_property s1 writeWaitTime 0

set_interface_property s1 ENABLED true

If you are missing the above assignment, the slave is treated as WORD by default. Do add the above code into your hw.tcl. Modify the properties as necessarily, read latency and etc.