I wanted to read the data i have written o the buffer, but when ever i read the pointers RD and WR both are same at every point and i am using wiz_send_data() for writing and wiz_read_buffer() for reading it back.
But when the change the command register value to the send_command i am observing the packet on the wireshark with the data i am writing over the buffer.
I am using pic18f45k22 micro controllers. SPI between pic and w5500 is working, i have tested the loopback tcp.
Problem is i am unable to send the a TCP Packet with size of 1514 bytes. I am trying to fill the TX buffer with 1460 and then change the command register to the send command. but when i did that i am only seeing the last set i am writing to the TX buffer.