Zoltan Hudak / UIPEthernet Featured

Mbed library for ENC28J60 Ethernet modules. Full support for TCP/IP and UDP Server, Client and HTTP server (webserver). DHCP and DNS is included.

Dependents:   mBuino_ENC28_MQTT Nucleo_Web_ENC28J60 Nucleo_Web_ENC28J60_ADC Serial_over_Ethernet ... more

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UIP device driver functions
Variables

UIP device driver functions
[The UIP TCP/IP stack]

These functions are used by a network device driver for interacting with UIP. More...

Variables

u8_t uip_buf [UIP_BUFSIZE+2]
 The UIP packet buffer.

Detailed Description

These functions are used by a network device driver for interacting with UIP.

Variable Documentation

u8_t uip_buf[UIP_BUFSIZE+2]

The UIP packet buffer.

The uip_buf array is used to hold incoming and outgoing packets. The device driver should place incoming data into this buffer. When sending data, the device driver should read the link level headers and the TCP/IP headers from this buffer. The size of the link level headers is configured by the UIP_LLH_LEN define.

Note:
The application data need not be placed in this buffer, so the device driver must read it from the place pointed to by the uip_appdata pointer as illustrated by the following example: 
 void
 devicedriver_send(void)
 {
    hwsend(&uip_buf[0], UIP_LLH_LEN);
    if(uip_len <= UIP_LLH_LEN + UIP_TCPIP_HLEN) {
      hwsend(&uip_buf[UIP_LLH_LEN], uip_len - UIP_LLH_LEN);
    } else {
      hwsend(&uip_buf[UIP_LLH_LEN], UIP_TCPIP_HLEN);
      hwsend(uip_appdata, uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN);
    }
 }

Definition at line 138 of file uip.c.

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