4 replies to this topic

[junwuchi]

hi~

what is the maximum size of array?

my code is "co_uint8 imbuffer[134][216];"

is it worng?

s/w simulation is good but doesn't work in ml 410 board.

i think array wrong or stream deadlock

plz help me.

i use impulse 2.20.h.3

[RalphBodenner]

The maximum size of an array is determined by how much memory (block RAM, distributed RAM) is available on the target device. Did the mapping process in ISE/EDK report running out of resources or failing to meet timing? If mapping succeeded, you might try running an HDL simulation, starting at the level of individual hardware processes, to diagnose the problem.

I would suggest upgrading to Version 3 of CoDeveloper as soon as possible, as many improvements have been made to the hardware compiler since the last Version 2 release.

Regards,
Ralph

[junwuchi]

thank you for your reply

now timing no error.

first i use microblaze opb bus clock 100Mhz --> timing error 6000 error

but now 50Mhz -->timing success.

problem is... same value return from stream unlimited repetition, but one stream(pSymid) receive success

p1=co_stream_create("pStream1",INT_TYPE(32),BUFSIZE2);
p2=co_stream_create("pStream2",INT_TYPE(32),BUFSIZE2);
p3=co_stream_create("pStream3",INT_TYPE(32),BUFSIZE2);

pSymid => 0
pSymsx => 641
pSymsy => 41

pSymid => 1
pSymsx => 641
pSymsy => 41

pSymid => 2
pSymsx => 641
pSymsy => 41

pSymid => 3
pSymsx => 641
pSymsy => 41

pSymid => 4
pSymsx => 641
pSymsy => 41

.
.
.
.


so, one more question when stream open and close ?

1)

co_stream_open

for{

co_stream_read or write

}

co_stream_close

2)

for{

co_stream_open
co_stream_read or write
co_stream_close
}

which correct?

now i used 1)

[RalphBodenner]

#1 is the most efficient use of stream operations if you are reading/writing multiple pieces of data in a row.

It would be easiest for us to help diagnose the problem if you could send the complete Impulse C source code and project file to support@impulsec.com.

Regards,
Ralph

[junwuchi]

I was send my code to you

Thank you


Regards,
Junwuchi