null connection

[ritesh]

i use usb to db9 cable for  p89v51rd2 program loader

BF-810 cable i use.

 

it is require for null connection of pin of db9 pin. how to null?

 

thanks…

[madhu]

you connect db9 connector as pin2 as receiver , pin3 as transmitteer & pin5 as gnd. this is null modem connection

[AJISH ALFRED]

Hi,

All you have to use is three pins,

2–>RX

3–>TX

5–>GND

 

Now use any application like hyperterminal, cutecome etc. to set the serial port baud rate and other properties

[Author]

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