I have a WizFi250 and I have problems tryng to configure the SPI interface. Using an hyperterminal it answers an [OK] when I put a corresponding command to set the SPI com. But when I write AT+MSPI=? it answers: 1,0 [OK] (configured as UART).
I could configure SPI as main interface, so I get the message: ðWWiFi250 Version 18.104.22.168 (WIZnet Co.Ltd (with some errors as you can see). However, my main doubt is how to manage this interface because when I send a command, I do not receive a response from WizFi250. I read in another topic of this forum that I have to send 0xF0 (NULL), but nothing occurs. Are there a doccument that specifies a procedure to handle the SPI interface? Thanks.