I browsed a source codes of  urjtag.-0.10 and would like to ask any experts 2 
questions:

1.
File 
ejtag_dma.c
in  \urjtag-0.10\src\bus directory

uses      17 bit ( defines it as DmaAcc  )
of EJTAG_CONTROL register.
But EJTAG specification  2.6 or 3.1 say about that 17th bit
"Must be written as zeros; return zeros on reads."

How was found out it is nescessary to use that bit?


2.
File 
ejtag.c
in  \urjtag-0.10\src\bus directory

if 
EJTAG_VER == EJTAG_20
writes something to


Debug Control Register Address, 0xFF300000

Why is that nescessary? Is there a description why is that needed?
Thanks



------------------------------------------------------------------------------
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing 
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/
_______________________________________________
UrJTAG-development mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/urjtag-development

Reply via email to