The relevant bits are the Fault Type (FT) field of the Fault status register. If the page table entries ET field is 0 it means it is a invalid address....
Hello Jiri, hello everyone, First Question: Assumed one interrupt has happened and the IU enters its ISR, during this time other IRQs arrive. Is it possible to...
... When entering the ISR the ET bit is 0. So no irq will happen. When setting it to 1 (to be able to receive winoverflow traps etc) you can at the same time...
Hi,
I am very sorry. I mistyped the name of the Access Type field of the Fault Status Register. When I was talking about the ACC field I was referring to...
I think I mistyped the field too so here is my answer again: The relevant bits are the Fault Type (FT) field of the Fault status register. If the page table...
I think you are referring to the ACC field of the PTE, not to the AT field of the FSR. I think that the Fault Type (FT) depends on the Access Type (AT) and...
Hi Jiri, I'm looking at the timer code in the latest Linux kernel. To get time resolution beyond 10ms (jiffies), system call gettimeofday calls ...
Zhangxi Tan
xtan@...
Jan 2, 2007 9:48 pm
10187
There was a minor update in the MMU in the latest version of GRLIB, so I have updated the pre-compiled bitfiles for the GR-XC3S-1500 board. You can download it...
Hello Konrad, thanks a lot for your kind answer ! But the nested irq issue is still unclear for me. The following text ... I seems that nested interrupt is not...
... Nested irq are handled correctly now. I'm not shure weather it is in the current release. I guess it is. Jiri knows weather it is. ... The irq get...
Hi When I make prom files with sparc-rtems-mkprom it always says leon3 bootloader at startup.. I use leon2 and can not find an option to select leon2 in the...
... You are right. Use LEON_BYPASS_LOAD_PA. Strange that it didn't segfault here. ... This might also be erronous. Since the scalar reload scales the timer...
Thanks! I have another question towards memory barrier implementation in current cross-compiler (gcc 3.2.2). In Linux, when barrier() function is called in...
Zhangxi Tan
xtan@...
Jan 4, 2007 10:28 am
10196
Hello Jiri, thank you very much for your quick answer. But there is also problem with nested interrupt.I updated the bcc plugin for eclipse to 1.0.26 and try...
... If PIL is 13 then only 14 and 15 can come in. Maybe you forgot to enable the timer 1 irq? Read the irq ctrl's mask bit. I think you can also force a irq...
... I'd say that the memory_barrier() for single procesor system is to prevent the optimization to shuffle around the insns. I'd also say that stbar is for...
... LEON implements Total store ordering (TSO), so it does not really need the STBAR instruction. I am not aware of any SPARC V8 processor (LEON or others)...
Hi,
I have just tested the latest version you gave me and it works! Thank you very much. Sorry for the inconvenience.
Regards,
Pablo Parra
Jiri Gaisler...
Hi I tried to run the rtems-irq.c program to verify my hardware.. It always got stuck in the interrupt!! Early on i tried to remove the printf statment and ...
Hi, I have tried to add a double grgpio module to the leonmp.vhd template. Source code is like the following, the problem is that I can see the gpio_lcd0 been...
Hi, I have tried to add a double grgpio module to the leonmp.vhd template. Source code is like the following, the problem is that I can see the gpio_lcd0 been...
... I do have enabled the timer 1 irq and it is not masked. Even force timer 1 interrupt brings nothing. Could you do a similar test? ... NMI is non maskable...
Hello all, I'm trying to duplicate a grlib/simulation from a pc to a laptop. I have the following error message on the laptop: /bin/sh: vsim: command not found...
Check that the second GRGPIO port is listed in the plug&play information at the start of VHDL simulation. If not, you have a problem somewhere ... Jiri....
Hi Jiri, I have tried your suggestion and used modelsim to perform a simulation. In the simulation, the "run" command does list the second GRGPIO port and the ...
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