Hi, I would like to know what is the diference between the option of the cross-compiler -O2 and -O3. Is there another option to optimise the code? Thanks for...
... hello alixu GCC have many option for optimisation, you can choose from -O0 to -O4, the most commont level of optimisation is -O2. You can also use -Os or...
Hi, Jiri A miss in u-boot-1.3.3, it can cause errors : u-boot-1.3.3/include/ pci.h:317: error: parse error before "phys_addr_t" ... It can be solved by moving...
Hi, This has already been fixed, the patch was submitted 2008-07-09: http://git.denx.de/?p=u-boot.git;a=commit;h=21ae6ca0315afdbc65dc3e95ffd5763e6773d030 ...
With a small S-Record loader our feeling is that we are able write the FRAM, but reading it doesn't work as we expect. Two problems: 1. Byte access read/write ...
A data read or instruction fetch from 8-bit prom/ram will always read at least 4 bytes, as the minimum cacheable data is one 32-bit word. If your FRAM does not...
Respected, I wanted to join this group what i have to do for? I am a new user of LEON3 processor. I wanted to take help from the group memebers. Please tell me...
... Only if you modify the memory controller. The CPU will issue a word access on AHB, so the memory controller must be modified to put idle cycles between the...
I have a problem related to the simulation of LEON3MP processor design.These are the followings steps, i adopted for the design: 1. First I compile the design...
Is this documented anywhere else but in the AMBA specififcation? From SW designer point of view restrictions of the hardware implementation against the SPARC...
I am working on a duel Leon3 processor implementation. I have to add a slave to the ahb bus to access the rest of my system. I would like to use the...
I am trying to put together a simple Verilog model of the apb bus master to distribute to the students. I modified leon3mp.vhd to add 6 more apb peripherals....
Is there a publicly available testbench for the LEON3 processor and the other gaisler library components? I made some changes to the processor and memory...
... environment. ... My guess is that this topic has been gone over several times on this forum, Could someone please post some key words I can use to search ...
I'd give "volatile" a try since AMBA bus locations are usually accessed by 'volatile int *' like types in C code. This is discussed on the list from time to...
SAYER Christian
christian.sayer@...
Sep 4, 2008 12:30 pm
13807
... The easiest way to perform simple AMBA accesses is to modify the template designs' systest.c application to make a processor access your slave. Something...
... The bits propagated to the slaves are apbmax:0. apbmax should be set to 19. Do you have another value for this constant in your apbctrl.vhd? From...
Yes, interrupts are masked throughout startup, unless ... ... fancy HW design does tricks to "make IRL 15 truely non-maskable", also in the interrupt...
Hello! I want to synthesize Leon3. I'm using the command "make ise". But in the place&route, I don't want to use an UCF file, because I want a simulation post...
Hello, I read in the RCC User Manual that it is possible to use parallel LEON3 processors with RTEMS. Currently I am unable to run a simple test using more...
Hello community, which access granularities (8/16/32/64 bit) are possible when accessing the DSU's traceram and registers? The RAM component does not use any...
Hi Matthew ... I suggest that you use the system test software that you find under software/leon3. Normally called via the template design's systest.c. As you...
Is there at least a test bench available for the integer unit? I'm sure the developers at Gaisler Research have to use something to verify the functionality...
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