Question about the Avalon Performance Counter

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originally posted by ruling@Feb 7 2006, 11:55 PM

1. alt_get_cpu_freq() is not defined by "altera_avalon_performance_counter.h",

which header file can i use for this function?

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are you sure? I have it in the file

components/altera_avalon_performance_counter/HAL/inc/altera_avalon_performance_counter.h

... it's the last function declared!

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originally posted by ruling@Feb 7 2006, 11:55 PM

2. when i run the program using nios ii instruction set simulator, it gave me a

warning : "sopc builder system component performance_counter_0 is not

supported by the simulator. simulation may be incorrect if your software

attempts to access it".

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=12614)

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I think the simulator only implements a few basic peripherals...

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originally posted by ruling@Feb 7 2006, 11:55 PM

2. also i got an error: "error! failed memory access in

component cpu_0 - reading data 0x0 from uninitialized memory (addr =

0x3ff68) error! : simulation failed in component cpu_0 at instruction 3257

(pc=0x21e4 instr=0x24000317)."

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=12614)

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In the simulator, You cannot read from a location that has not been previously written... that&#39;s typically a bug in the software (unless you want to read some random values...)...

In any case look also at this post:

http://forum.niosforum.com/forum/index.php?showtopic=314&hl= (http://forum.niosforum.com/forum/index.php?showtopic=314&hl=)

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originally posted by ruling@Feb 7 2006, 11:55 PM

so, which tool except modelsim can i use to

run the program with performance counter? actually, modelsim is very slow if

running a very large code.

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=12614)

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I think you have to use the real hardware :-(

Paolo

Thank you very much, paolo http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

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originally posted by paolo.gai+feb 8 2006, 03:16 am--><div class='quotetop'>quote (paolo.gai @ feb 8 2006, 03:16 am)</div>

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<!--quotebegin-ruling@Feb 7 2006, 11:55 PM

1. alt_get_cpu_freq() is not defined by "altera_avalon_performance_counter.h",

which header file can i use for this function?

--- Quote End ---

are you sure? I have it in the file

components/altera_avalon_performance_counter/HAL/inc/altera_avalon_performance_counter.h

... it&#39;s the last function declared!

--- Quote Start ---

originally posted by ruling@Feb 7 2006, 11:55 PM

2. when i run the program using nios ii instruction set simulator, it gave me a

warning : "sopc builder system component performance_counter_0 is not

supported by the simulator. simulation may be incorrect if your software

attempts to access it".

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=12614)

--- quote end ---

--- Quote End ---

I think the simulator only implements a few basic peripherals...

--- Quote Start ---

originally posted by ruling@Feb 7 2006, 11:55 PM

2. also i got an error: "error! failed memory access in

component cpu_0 - reading data 0x0 from uninitialized memory (addr =

0x3ff68) error! : simulation failed in component cpu_0 at instruction 3257

(pc=0x21e4 instr=0x24000317)."

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=12614)

--- quote end ---

--- Quote End ---

In the simulator, You cannot read from a location that has not been previously written... that&#39;s typically a bug in the software (unless you want to read some random values...)...

In any case look also at this post:

http://forum.niosforum.com/forum/index.php?showtopic=314&hl= (http://forum.niosforum.com/forum/index.php?showtopic=314&hl=)

--- Quote Start ---

originally posted by ruling@Feb 7 2006, 11:55 PM

so, which tool except modelsim can i use to

run the program with performance counter? actually, modelsim is very slow if

running a very large code.

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=12614)

--- quote end ---

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I think you have to use the real hardware :-(

Paolo

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=12624)</div>

[/b]

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