Did you configure your MAC to receive multicasts/boradcasts? lwIP cannot do
this!
Ciao
Dirk
On Thu, Feb 7, 2019 at 3:39 PM Pekub <kube...@regonik.sk> wrote:
> Hello,
>
> I have this problem. I need to receive UDP Broadcast, but The "callback"
> function is never called.
>
> I use LwIP 2.0.3.
>
> /*----- Default Value for IP_SOF_BROADCAST: 0 ---*/
> #define IP_SOF_BROADCAST 1
> /*----- Default Value for IP_SOF_BROADCAST_RECV: 0 ---*/
> #define IP_SOF_BROADCAST_RECV 1
>
> void udp_server_init(void)
> {
> struct udp_pcb *upcb;
> err_t err;
>
> upcb = udp_new();
> ip_set_option(upcb, SOF_BROADCAST);
>
> if (upcb)
> {
> err = udp_bind(upcb, IP_ADDR_BROADCAST, 8000);
>
> if(err == ERR_OK)
> {
> udp_recv(upcb, udp_receive_callback, NULL);
> }
> }
> }
>
> void udp_receive_callback(void *arg, struct udp_pcb *upcb, struct pbuf *p,
> const ip_addr_t *addr, u16_t port)
> {
> HAL_GPIO_TogglePin(GPIOE, GPIO_PIN_2);
>
> pbuf_free(p); // Free the p buffer
>
> //udp_transmit(upcb, addr, udp2_tx_data, udp2_tx_len);
> }
>
> What is wrong ?
>
> Peter
>
>
>
> --
> Sent from: http://lwip.100.n7.nabble.com/lwip-users-f3.html
>
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>
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