Phycfgr register read

Question

Hello to all! Recently I started to implement IP conectivity to my Atmel’s Xmega based project. Wiznet is my favorit IOP for many years and I have choosen W5500 chip. Now i got to a problem reading the phycfgr reg. Right after init and if no further action, I can succesfully fead phycfgr and can correctly detect speed, duplex, link state. But just after i open a tcp socket, reading phycfgr always return all zero. It is the same even if I just check for a socket status. However my (Bascom) code does ok - I’m able to do tcp/ip communication well. Thanks in advance for all your suggestions! BR Andrej

oliver28 · Answer

Seems that your program reads Reg 0x2E from the socket base instead of the commnon registers (this will return 0x00 Fragment Offset IP Header 1 default). Check the BSB that is sent to the SPI when accessing the REG 0x2E from the socketregister (0x00 @ read or 0x04 @ write to the common registers)

Infoetak · Answer

Hi! Thanks to oliver28. I’ll check, if this could be a reason for a wrong read. Best regards Andrej

Infoetak · Answer

Hello to all! I posted this issue to Bascom author, and he found and solved this problem. He sent me a new w5500 lib. Thanks for help. BR Andrej