... True, but software designers seldom read the AHB specification before they call the ASIC designer. But maybe it would be better to generate an Error...
Hi Jiri, hi community, in order to support SW development and optimization it might be very useful to supervise the cache hitrate to get an indication of the ...
... endianes. In fact, when the leon needs to do a Read Modify Write operation, the endianess really matters. if you are in big-endian and you address ends...
I have not looke into the details of your proposed mechanism to count cache hit rates. I would do it by adding some code the the state-0 of the state machines...
Hi Jiri, that's the point I don't want to modify the cache-controllers because they are working, verified modules... Any modification is a risk. My purpose is...
There are 'chip selects' for the caches. The icache is accesses when ici.inull = '0', while the dcache is accessed when dci.enaddr = '1' and dci.nullify = '0'....
Respected sir, i need TSIM SPARC simulator for LEON2 processor for my ME project.so i kindly request you to send the details. Thanking you, M.POONGOTHAI. ...
Hi all, I use LECCS-1.1.5 for cygwin in my win2k platform. Recently I encountered a problem on the C preprocessor (error messages go as follows). source1.c: In...
This is explained in the manual - 'go' starts execution at a given address without initialization of the system. 'run' first initializes the system and the...
Is there any mechanism on the AMBA AHB bus that controls how many bus cycles a bus master can hold the bus? On the PCI bus, there is a latency timer mechanism...
There is no mechanism defined in the AHB standard that would limit the time a bus master holds the bus. However, since you can implement the AHB arbiter such...
Thanks for a quick reply. Does this mean that I have to modify the source code of ahbctrl module (part of grlib) myself, or are there any generics that I can...
In this case, you will need to modify the VHDL code yourself. The grlib arbiter does not re-assign the bus ownership in the middle of a burst, which is what...
Dear Jiri In the reference design for ML-401 board (LEON3-1.0.10), hindex of ... bpromgen : if CFG_AHBROMEN /= 0 generate brom : entity work.ahbrom generic...
You are right, the hindex is wrong and should be 6. This does not really matter as long as you do not enable the AHBROM. I will fix this in the next release. ...
Thank you for your reply. I did enable the ahbrom and booted from on-chip ROM. It worked fine on the board with this mismatch. (Because I made it work on the...
Hello? I am now trying to install Snapgear Linux (LEON3) on the Cygwin running at WindowsXP. But I got error message. $ tar -xjf /snapgear-p26.tar.bz2 tar:...
Hello, At first, let me show my developping environment. Machine: PC with WindowsXP Linux: Cygwin on WindowsXP CrossCompiler: BCC Board: GR-XC3S 1500 (from...
snapgear linux must be compiled with the sparc-linux tool-chain (as metioned on our web site), and not by BCC. The sparc-linux tool-chain only runs on a linux...
Thank you for your quick reply. Could you recommend which linux is good using Intel Processor as host for compilation of snapgear? Actually I am first for...
I think that any modern linux distribution will work. Personally, I use slackware. If you are a beginner, maybe Suse or Debian is easier. I don't really know...
grlib 1.0.10-b1640 can now be downloaded from www.gaisler.com: http://www.gaisler.com/cms4_5_3/index.php?option=com_content&task=view&id=156&Itemid=104 The...
hi all, i m trying to port leon3 on the XC2VP30 board. I am modifying the leon3mp design. I have made following changes in the Makefile as shown below:- ...
hi all, there is no virtex2p target technology in the xgrlib config tool. but i have to port leon3 on the xc2vp30 board with has virtex2p FPGA on it. i have...
Hallo, cygwin: make vsim generates "Error 2", is it OK? .......................................................... vcom -quiet -93 -work work leon3mp.vhd vcom...
under cygwin: After setup a new design/pcb (leon3-at697_mezz with virtex-e1000 fpga) and change from synplif_pro to normal synplify in the global makefile i...
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