the question of the Ethernet library

[sunyuanling1022]

Posted on March 14, 2007 at 07:07

the question of the Ethernet library

[sunyuanling1022]

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

[amira1]

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 ]