I want to listen to UDP packets from a single IP address (in my example the PC). Using LWIP 2.1:
udp_bind(upcb, IP_ADDR_ANY, PORT)
Allows me to receive data from PC on IP 192.168.1.2 (for example)
However using:
uint8_t BytesIP[4];
BytesIP[0] = 192;
BytesIP[1] = 168;
BytesIP[2] = 1;
BytesIP[3] = 2;
ip4_addr_t ip;
IP4_ADDR(&ip, BytesIP[0], BytesIP[1], BytesIP[2], BytesIP[3]);
udp_bind(upcb, &ip, PORT)
Doesn't receive anything (doesn't trigger the callback).
Why? What's the difference?
TIA.
Currently using LWIP RAW API, Hercules Setup Utility and STM32 Cube HAL.
