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sunyuanling1022
Visitor II
March 14, 2007
Question

the question of the Ethernet library

  • March 14, 2007
  • 2 replies
  • 669 views
Posted on March 14, 2007 at 07:07

the question of the Ethernet library

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    2 replies

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    sunyuanling1022Author
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 09:39

    hello,in the page 170 of the STR91xF reference manual,the bit of DMA_EN,when you want to force the DMA to immediately close the transfers toward the AHB bus and MAC core.the bit is rc_w1,but int the ENET library ,the function void ENET_Start ( void), ENET_DMA->RXSTR &=~ DMA_RX_START_DMA_EN;the value of DMA_RX_START_DMA_EN is 0x00000001,so it write 0 to the DMA_EN.who can help me ?Thanks

    A
    amira1
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 09:39

    Hi sunshan,

    you are right I confirm that ENET_DMA->RXSTR &=~ DMA_RX_START_DMA_EN instruction has no effect because it writes 0 in DMA_EN bit.

    Think you and best regards

    mirou

    [ This message was edited by: mirou on 14-03-2007 11:42 ]

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