Hi guys,
I tried to make this cable many times and the result was i can see the booting sequence for the controller but i can not press the space space space to the booting of the controller... i found a lot of the pin diagram of the null serial cable and i will appreciate if you share with me the correct pin out.
thanks
Marwan
It is not a null modem cable... It is an industry standard 9-pin straight through RS-232 cable.
M-F
1-1 (DCD)
2-2 (Rx)
3-3 (Tx)
4-4 (DTR)
5-5 (Signal Ground)
6-6 (DSR)
7-7 (RTS)
8-8 (CTS)
9-9 (This is the Ring In Indicator and is not used for this application, it can be skipped if you are using RJ45-RS232 modular adapters)
G-G (Cable Ground, not essential)
That is all there is to it, nothing special... In theory, only pins 2, 3, and 5 are required by the controller, although Hyperterminal may not work right without the others, Tera Term doesn't care as long as you turn off flow control.
I also recommend using TeraTerm and not Hyperterminal.
https://ttssh2.osdn.jp/index.html.en