I have checked the driver and come to the conclusion that the edcl and greth driver interaction can be improved. This will probably require changes to both the...
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ok How can I order it? Amin ________________________________ From: Jiri Gaisler <jiri@...> To: leon_sparc@yahoogroups.com Sent: Tuesday, September 1,...
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Hi, I have encountered some issues with the GRETH - EDCL module, I have coded a tiny script to generate EDCL packet from my computer and read/write data...
hi i'm using virtex 5 fpga custom board with onboard clock frequency of 25MHz. I dont have any high performance requirements. what should be the CLK_MUL and...
Minimum clock frequency for CLKFX on virtex5 is 32 MHz, so you should keep above this. Running at 50 MHz is trivial on any Virtex5, so you can try 4 / 2 as...
You have probably not driven DSUEN with 1 on your new board. DSUEN must be set to 1 or the processor will not be able to go in debug mode. If you have no...
Hi, I am trying to run a simple file I/O program on TSIM after ECOS targetting. Command line for compilation and linking -> sparc-elf-g++ -g -nostdlib...
... Dear Jiri, Thanks for the reply. The dsuen hardware switch on the board was closed, hence I was getting the problem. I had another query about using the...
The data input register cannot be written, since it latches the value on the external pins. The direction and output registers can be written. Not driving the...
Hi, Make sure you have compiled support for files system and that you have created a filesystem. The commands below may be used to create a C header containing...
The info sys shows that your EDCL has 2 kB total buffer size which means your allowed packet size is 512 B. This limits the payload to 456 B due to the headers...
Marko, Thank you very much for your reply. Still, I don't really understand the correlation between the EDCL total buffer size and the maximum packet size. If...
Sorry, I see that this is missing in the manual. It will be fixed for the next release. Both the packet size and the number of packet buffers increase. 1kB =...
A beta version of BCC using gcc-4.4.1 is now available for download: linux: ftp://gaisler.com/gaisler.com/bcc/bin/linux/4.4.1/sparc-elf-4.4.1-1.0.31b.tar.bz2 ...
there is a minor mistake. In the /src/examples/Makefile %.exe: %.o mkinstalldirs $(DESTDIR) --> ./mkinstalldirs $(DESTDIR) $(LD) $^ $(LDFLAGS) $(LDFLAGS_$(@F))...
Hi, We have encountered some issues while using GRETH module drived over the GRPCI bridge. We have built a driver on a PC that try to drive the GRETH directly...
Hi, You should match the size of the GRETH and GRPCI fifos, and don't use such a large PCI fifo because it causes longer latency. Try 16 or 32 bytes. Best...
Kristoffer, Thank you for your reply. So you are saying that this issue can indeed be caused by long latencies on the PCI? I will run this tests asap, and I...
