W5300 problem in sending UDP packets to PC

Question

hi i write a code for sending UDP data to PC. but after the send first packet to PC, FIFO TX RSR register value set to 2 and never change untill i close port and open it again. i use Spartan6 chip and VHDL language and set TMSR1 Register to X"3020"; also i use socket0 for sending UDP. if i increse the UDP FIFO size, same problem is happend. a part of code for sending UDP packet is attached:UDP.pdf (16.4 KB) thanks

becky · Answer

beygi: FIFO TX RSR register What is this? Is it the Sn_TX_FSR register? beygi: set TMSR1 Register to X"3020"; Do you mean you set 0x3020 in TMS01R? This is set to 48 bytes for socket 0 and 32 bytes for socket 1. Have you set the registers in accordance with the above? You set the memory of socket 0 TX and socket 1 TX to 80, so the sum of the memory of the remaining sockets should be 48.

beygi · Answer

i can solve this problem! but i did’t understand how this problem solved! it is very wonder for me. now wiznet work without any problem! and work with very good speed