Hi all, I have a question regarding the connection between a mac-/phy-driver and a third party tcp / ip stack. In the mac layer I have functions like y_eth_isr, y_eth_init, y_eth_send, y_eth_recv, ... and many more. In y_eth_init I attached an ISR (y_eth_isr) and the default DSR (eth_drv_dsr). As far as I understood, the data flow is as follows: 1) The MAC (Hardware) receives an ethernet frame and creates an interrupt 2) y_eth_isr is called ( ret = (CYG_ISR_HANDLED | CYG_ISR_CALL_DSR); ) 3) The default eth_drv_dsr is called 4) y_eth_deliver is called 5) y_eth_poll is called 6) The default eth_drv_recv is called 7) y_eth_recv in the mac driver is called This is not what I really could proove but what I investigated by reading the documentation and source code. Now.. my consideration was that I simply have to add the call to the receive function of the tcp/ip stack in y_eth_recv. Is this the right approach? Another point: how can I reliable test the function of my hardware? I plugged in my device into an ethernet switch which says that there is a link. Using ipconfig under Windows just says -not connected-. Using ping is not a solution of course, because I have no ip address... And a third question: in the send function of the tcp/ip stack I have to forward the send buffer to y_eth_send in the mac layer. I simply do this by calling y_eth0_sc.funs->send(...). Is this the suitable way? Kind Regards, Dennis
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