eZdsp 5535 SIO_issue

gabrib

Hi,

Hopefully I'll found some good ideas in this forum.
I'd like to use the '5535 to build an MP3 player. I bought both an eZdsp 5535 and 5515.
I started my project from the fameous Elektor one. Works on the eZdsp 5515, but many many problems with the 5535.

Now here is the situation
Board eZdsp 5535,
CCS 4.2.4.00033,
BIOS 5.41.13.42   (and same problem with the 5.41.10.36),

The firmware stucks when calling "SIO_issue". Looks like looping ?!?

For those who know the Elektor example, it's in the "tskDecode()" routine.
           SIO_issue(hStreamOut, &audBufs[idx][0], WORDS_PER_OUT_BUF, NULL);   // buffers have to be issued before they can be reclaimed

I used a breakpoint at this call. Up to this line it seems to work. One more step and everything block.

As a reminder, on the ezdsp 5515, this works...

Any idea,suggestion,comment ?

Thx

over 13 years ago

0 asd asd over 12 years ago

Intellectual 360 points

Have you solved the issue? I am also trying to port the 5515 mp3 project to 5535, and am encountering a hang at the same line. Any suggestions?

Thanks

0 gabrib over 12 years ago in reply to asd asd

Prodigy 20 points

Hi,

nop, the issue was not solved.

We spent too much time on this and then decided to evaluate a solution using a device from (unfortunately) another manufacturer.

Regards

0 asd asd over 12 years ago in reply to gabrib

Intellectual 360 points

I see. It is pretty weird that the example worked on 5515, but not on 5535 (despite their similarity). What device did you end up using as a replacement?

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eZdsp 5535 SIO_issue