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Altera_Forum
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15 years ago

JTAG to Avalon master bridge usage

Hi, The main issue i want to ask is whether the jtag to avalon master bridge IP core can be used to communicate data between PC and the FPGA, even if the board does not have JTAG connector. My ...
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Altera_Forum
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15 years ago

The qsys fabric alters the address between master and slave in two (sometimes three) ways:

* It subtracts the base address of the slave from the address provided by the master - so if you slave is at base address 0x4000 then byte address 0x4010 on the master will be seen as byte address 0x10 on the slave

* If the master or slave is marked as being word addressed (one of the interface properties controls this) then the fabric will shift the address to convert it to/from a byte address

* If the slave is marked as natively addressed then the fabric does all sorts of weird stuff. Native addressing is deprecated and should not be used.