1 reply to this topic

[junwuchi]

Hi!

I have a question.



<H/W>

co_stream_write(1)

{

LONG OPERATION

}

co_stream_write(2)


<S/W>

while(1)
{
co_stream_read(1)
co_stream_read(2) // this is DEADLOCK!!
}


what method exist ?

co_signal_wait is fail.

S/W simulation is success But DEADLOCK in my board.


please give me a TIP. I use V2.2 and xilinx ml410 board macroblaze opb

Thank you.

[RalphBodenner]

It's unlikely that true deadlock will occur in this situation, but the second read will block until the second write has been done. Have you done an HDL simulation of the design at the top-level Impulse C component (in *_top.vhd)?

I would highly recommend upgrading to version 3.20 of CoDeveloper--it contains many fixes and updates over the 2.20 version.

Regards,
Ralph