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Altera_Forum's avatar
Altera_Forum
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20 years ago

lwIP UDP thoughut w/o an RTOS

Wanted to receive 1500 byte payload from 100 MAC (on Cyclone II) device, and using lwIP UDP no RTOS is required. Can the UDP RX receive 80 Mbit/s? Where the UDP TX is minimal for data flow cont...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Hell Danny,

take a look at the following code. After executing "udp_test_init" it should be possible to send UDP packets. 

IP4_ADDR(&udpDestIpAddr, 192, 168, 2, 150);
pbuflfsr = pbuf_alloc(PBUF_TRANSPORT,LFSR_LENGTH,PBUF_RAM);    //Get a pbuf struct.
((u8_t *)(pbuflfsr->payload)) = LFSR_TOS;
((u8_t *)(pbuflfsr->payload)) = LFSR_VS;
((u8_t *)(pbuflfsr->payload)) = 0x00;
((u8_t *)(pbuflfsr->payload)) = 0x00;
udp_sendto(pcb, pbuflfsr, &udpDestIpAddr, 1510);

Regards,

niosIIuser