Exemplo n.º 1
0
/**
 * Send data to a specified address using UDP.
 *
 * @param pcb UDP PCB used to send the data.
 * @param p chain of pbuf's to be sent.
 * @param dst_ip Destination IP address.
 * @param dst_port Destination UDP port.
 *
 * dst_ip & dst_port are expected to be in the same byte order as in the pcb.
 *
 * If the PCB already has a remote address association, it will
 * be restored after the data is sent.
 * 
 * @return lwIP error code (@see udp_send for possible error codes)
 *
 * @see udp_disconnect() udp_send()
 */
err_t
udp_sendto(struct udp_pcb *pcb, struct pbuf *p,
  struct ip_addr *dst_ip, u16_t dst_port)
{
  struct netif *netif;

  LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, ("udp_send\n"));

  /* find the outgoing network interface for this packet */
#if LWIP_IGMP
  netif = ip_route((ip_addr_ismulticast(dst_ip))?(&(pcb->multicast_ip)):(dst_ip));
#else
  netif = ip_route(dst_ip);
#endif /* LWIP_IGMP */

  /* no outgoing network interface could be found? */
  if (netif == NULL) {
    LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("udp_send: No route to 0x%"X32_F"\n", dst_ip->addr));
    UDP_STATS_INC(udp.rterr);
    return ERR_RTE;
  }
  return udp_sendto_if(pcb, p, dst_ip, dst_port, netif);
}
Exemplo n.º 2
0
int core0_main(void)
{
    udp_pcb_t * udp;
    ip_addr_t addr;
    pbuf_t *p = (void*)0;//(pbuf_t *)pbuf_alloc_special(MEMP_PBUF);
    uint16 idx;
    uint16 total;

    /*
     * !!WATCHDOG0 AND SAFETY WATCHDOG ARE DISABLED HERE!!
     * Enable the watchdog in the demo if it is required and also service the watchdog periodically
     * */
    IfxScuWdt_disableCpuWatchdog(IfxScuWdt_getCpuWatchdogPassword());
    IfxScuWdt_disableSafetyWatchdog(IfxScuWdt_getSafetyWatchdogPassword());

    /* Initialise the application state */
    g_AppCpu0.info.pllFreq = IfxScuCcu_getPllFrequency();
    g_AppCpu0.info.cpuFreq = IfxScuCcu_getCpuFrequency(IfxCpu_getCoreId());
    g_AppCpu0.info.sysFreq = IfxScuCcu_getSpbFrequency();
    g_AppCpu0.info.stmFreq = IfxStm_getFrequency(&MODULE_STM0);


    report.position = 0;

    IfxPort_Io_initModule(&conf);
    for (idx = 0; idx < conf.size; idx++)
    {
    	IfxPort_Io_ConfigPin *tbl = &conf.pinTable[idx];
    	IfxPort_setPinHigh(tbl->pin->port, tbl->pin->pinIndex); // P33.0 = 0
    }

    initStm0();

    /* Enable the global interrupts of this CPU */
    IfxCpu_enableInterrupts();

    /* Demo init */
    wMultican_init();

    Ifx_Lwip_Config config;

    IP4_ADDR(&config.ipAddr, 192, 168, 7, 123);
    IP4_ADDR(&config.netMask, 255, 255, 255, 0);
    IP4_ADDR(&config.gateway, 192, 168, 7, 6);
    MAC_ADDR(&config.ethAddr, 0x00, 0x20, 0x30, 0x40, 0x50, 0x60);

    Ifx_Lwip_init(&config);

    addr.addr8[3] = 6;
    addr.addr8[2] = 7;
    addr.addr8[1] = 168;
    addr.addr8[0] = 192;

    /* background endless loop */
    IfxPort_setPinHigh(&MODULE_P33, 6); // P33.0 = 0
    total = Ifx_g_Eth.config.phyLink();
    if (total == 1) {
    	report.phy_link = 1;
    } else {
    	report.phy_link = 0;
    }
    ethRam = NULL_PTR;

    udp = udp_new();
    while (TRUE)
    {
        Ifx_Lwip_pollTimerFlags();
        Ifx_Lwip_pollReceiveFlags();

        if (total != Ifx_g_Eth.config.phyLink()) {
        	total = Ifx_g_Eth.config.phyLink();
        	if (total == 1) {
    			IfxPort_setPinLow(&MODULE_P33, 6);
    			netif_set_up(&Ifx_g_Lwip.netif);
    			IfxEth_startTransmitter(Ifx_g_Lwip.netif.state);
    		} else {
    			netif_set_down(&Ifx_g_Lwip.netif);
    			IfxPort_setPinHigh(&MODULE_P33, 6);
    		}
        }

        report.phy_link = total;
        report.mdio_stat = IfxEth_Phy_Pef7071_MIIState();
        report.ethRam = ethRam!=NULL?1:0;

        wMultiCanNode0Demo_run(report, 0);

        if ((stat & 0x0003) != 0x01) {
            IfxPort_setPinLow(&MODULE_P33, 7);
        } else {
            IfxPort_setPinHigh(&MODULE_P33, 7);
        }
       	if (Ifx_g_Eth.config.phyLink() && (ethRam = IfxEth_getTransmitBuffer(&Ifx_g_Eth))) {
			p = (pbuf_t *)memp_malloc(MEMP_PBUF);
			if (p != NULL) {
				p->payload = LWIP_MEM_ALIGN((void *)((u8_t *)ethRam));
				p->len = 100;
				p->tot_len = p->len;
				p->next = NULL;
				p->ref = 1;
				p->type = PBUF_REF;
				udp_sendto_if(udp, p, &addr, 5001, &Ifx_g_Lwip.netif);
				pbuf_free(p);
				IfxPort_setPinLow(&MODULE_P33, 8); // P33.0 = 0
			}
        } else {
			IfxPort_setPinHigh(&MODULE_P33, 8); // P33.0 = 0
        }
        REGRESSION_RUN_STOP_PASS;
    }
	udp_remove(udp);

    return 0;
}