Please help me to connect rcb6i 8 channel reciever with spf3 flight controller in ppm mode. Kind request...

@prashant17
if your rcb6i 8 channel receiver supports only pwm then you need a pwm to ppm converter or you can make your own pwm to ppm converter using Arduino.
Edit:
I don't know about your receiver.
If your receiver also supports ppm then ignore my post.

sir i have avionics RZ8  full range 8 channel reciever which has 6 channels,one ppm and one sbus port(Can refer in the image).Thank you..

Can anyone please reply!Humble request..

The flight controller also gives 2 connectors (specially for 3-axis stabilizers) for connecting to the receiver. A connection diagram should also be available alongwith the controller. Also tx should have a switched mode for at least one channel as far as I know.

Are you still trying to connect rcb6i to sprf3?

I can help you
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