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AM1806: About uPP

Genius 5470 points

Replies: 4

Views: 137

Part Number: AM1806

Hello,

Can uPP transmit 128 words at 1 burst?

If no, do you have any solutions?

Regards,

U-SK

  • Hi,

    I am not sure that uPP can handle this. Let me check further.

    Best Regards,
    Yordan

     


     Please make sure you read the forum guidelines first.

  • Genius 5470 points

    In reply to Yordan Kovachev:

    Hi Yordan,

    Do you have any updates on my question?

    Regards,

    U-SK

  • In reply to U-SK:

    Hi,

    I have not found anything in the documentation. Let me check internally.

    Sorry for the delay.

    Best Regards,
    Yordan

     


     Please make sure you read the forum guidelines first.

  • Hello,

    Unfortunately, the uPP's internal DMA always transmits data in bursts of 64 bytes. However, DMA read operations have configurable burst size, which may be set per channel using the RDSIZEI and RDSIZEQ bits in the uPP threshold configuration register (UPTCR). A DMA channel waits until the specified number of bytes leaves its internal buffer before performing another burst read from memory.

    You can set the byte count to 128 words and the line count 1, but internally it will still transmit in 64 byte bursts. You should be able to verify this by putting a scope on the XDATA pins. 

    Regards,
    Sahin


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