pandaboard ES Ver.B3 Long packet

Intellectual 605 points

Yuan-Heng Lu

Replies: 2

Views: 1465

Hello,

DSI's long packet has 65541 bytes,

But I send a long packet with 5800 bytes.

Minicom said, my packet is too long.

How many is the maximum number of long packet?

THX

• Pandaboard
• DSI
• long packet
• MIPI

Intellectual 605 points

Yuan-Heng Lu

• Feb 2, 2015 10:06 AM
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2 Replies

• Genius 10965 points

  

  Boyko Kazakov

  

  • Feb 2, 2015 10:17 AM

  Hi Yuan-Heng,

  Is this the message you are observing? 

  if (dsi->vc[channel].tx_fifo_size * 32 * 4 < len + 4) {

                 DSSERR("unable to send long packet: packet too long.\n");

                return -EINVAL;

         }

  You must check the size of your buffer also. It might be  because it is limited to specific threshold. If that is the case I suggest you increase it.

  Regards,

  Boyko

  

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• Intellectual 605 points

  

  Yuan-Heng Lu

  

  • Feb 6, 2015 2:54 AM

  In reply to Boyko Kazakov:

  I declare "int length=0; " and add source code "length=vc[channel].tx_fifo_size * 32 * 4 ; ".
  But compiling , I have a error. What error happen ? Is datatype not match ?

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