nguyenhung1811
10-06-2011, 10:13 AM
Loay hoay tim kiem tren mang mai ma ko ra h phai hoi cac ban. Minh dang lam truyen thong dung chuan rs232 che do bat tay, nhung chua hieu ro ve chuc nang cua cac chan nhu RST CTS DTR ... ban nao biet cho giai thich cho minh voi, neu co cho minh xin cai gian do xung cua cac chan do'. VI du khi DTE muon goi ki tu cho DCE thi DTE se kich hoat chan nao, dong thoi DCE se tra loi nhu the nao ... hay khi DCE muon gui ki tu thi DCE se phai lam the nao ... Neu co gian do xung cua cac chan dieu khien thi tot, cam on.