RTS CTS on connection to AVR

Sorry maybe this is beginner question… I can login to TCP server with wizfi220 (PC hyperterminal), everything good, can use DHCP and WP2-PSK keyword security… but there is simple question… PC provide RTS and CTS, but my AVR uC can’t provide RTS and CTS… i tried to connect only RXD and TXD, but fail to write AT command…

Please give me explanation how to handle RTS and CTS on AVR/uC…



I think that WizFi220 can receive the or send response without connection of RTS and CTS.
If only connect RXD and TXD bettween WizFi220 and your MCU, WizFi220 can use .

I recommend to check serial environment of your MCU.

ok ok thanks