Actually I use cygwin and I never had problems like it. Try reinstallling (or unistalling->installing, it is somewhat stronger) Tcl/Tk, maybe it will reolve...
Michele Portolan
michele.Portolan@...
Apr 1, 2004 8:03 am
4751
I want to write some boot routines for the LEON2, as well as some programs to control different LEONs ports. I want to do that with the C/C++ language. Can you...
hi, actually my DSU module options is enabled. The DSU Uart doesn´t want to transmit. Are there some other parameters or settings that can be made ? jack91a ...
At first I programed the 8 bit prom with a programmer, I found the data readed from 8 bit prom was different from the data readed from simulator(DSU -sim) . By...
Gaisler research has now received implementation id 0xF from Sparc International, so the next leon version will use this id in the %psr register. Version...
Hi, I am working on eCos on Leon and I have a few questions about user/supervisor modes: how are they used inside that OS? I usually thought that in any OS...
Michele Portolan
michele.Portolan@...
Apr 1, 2004 1:44 pm
4756
eCos/leon runs permanently in supervisor mode. It is only linux with mmu which run the processes in user mode. Jiri. ... -- ... Gaisler Research, 1:a...
Dear Jiri May you give more info on How to change from user to supervisor and from supervisor to user on leon under linux. I need this to develop drivers for...
hosam el-zomor
rd-hossam@...
Apr 1, 2004 2:12 pm
4758
I'm trying to build a Leon bitfile for the GR-PCI-XC2V board incl. Ethernet and Meiko FPU for 40 and 50 MHz. After successfull burning the Xilinx PROM's I'm...
How can I call a void function(void) C function from am assembler file (in eCos)? Can I directly use "call" or there is something more to do? In fact I have no...
Michele Portolan
michele.Portolan@...
Apr 1, 2004 3:18 pm
4760
When compiling Leon 1.0.21 (or 1.0.19) with default configuration it crashes ISE 6.2.01i with the message below. When we remove PCI it compiles, but we are...
How can I call a void function(void) C function from am assembler file? Can I directly use "call" or there is something more to do? In fact I have no...
Michele Portolan
michele.Portolan@...
Apr 1, 2004 4:22 pm
4762
I cannot recommend to use XST for the time being, we have seen several cases of corrupt netlists. Use synplify until a more stable version of XST is available....
Hi, I'd like to know if I can use the ahbram as program memory, without using SRAM, SDRAM and PROM. I have configured leon as follows: - the leon configuration...
You can run programs from the AHB ram, but you must link them to run from the proper AHB ram address. With 64 kbyte, you can not run rtems apps since they...
Hi Jiri: The current configuration software only allow to have AHB ram upto 64k bytes. To get 128k one needs to modify the released RTL, right? Darsun Please...
Darsun.Tsien@...
Apr 1, 2004 7:17 pm
4766
The ahbram.vhd does not include a limitation on size. However, the target technology packages (tech_*.vhd) are usually limited in how large rams they can...
... sparc architecture uses register windows for parameter passing. first parameter goes to register %o0 (output 0), second to %o1 and so on. then you can use...
Hi, I'm trying to read from the UART. I run in tsim-leon the program: main () { char ch; printf("Hello\n"); ch=getchar(); printf("Bye: %c\n",ch); } , but it...
Hi, Jiri: We found one problem when we simulates the LEON's netlist. The following program codes are part of our test bench. ... 40001018: 29 10 00 07...
even when i write a very simple code, the output of compiler is complicated . So, I think the compiler add the BSP to user code automatically. I's possible to...
I try to set a breakpoint on program running in prom, but it always do not work , even with leon simulater(DSU -sim) . whether the leon processor support prom...
My leon processor board is working with 8-bit prom. When I try to boot from this 8-bit prom, I meet error message. by checking the .txt section in 0x40000000,...
You are probably using software breakpoints inserted by break command in grmon or gdb. Software breakpoints are inserted by writting trap instruction ta 1 to...
Edvin Catovic
edvin@...
Apr 2, 2004 10:20 am
4777
Hi I'm a student and I need to use Leon microprocessor for my thesis. I have some problems when I try to interface a component using memory mapped io(during...
Hello all! I've met with probelms fitting leon2.0.21-xst into altera cyclone EP1C20F400C7 device ;-( the LEs using are more than the number the device have. ...
Note that on a cache miss, ctrl.annul is always set to annul the (missed) instuction. The missed instruction (which is X) and associated trap information will...
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