I some how lot the programmer cable that came with my fs-ct6b transmitter but by luck I have 3 usb to ttl converter modules based on the prolific2303 chips.... now the problem is that , I can connect my transmitter with digital radio but cannot fetch setting from controller or either cant update into controller. .... any advice plz.

maybe Binding problem
do you bind the tx n RX ?

Quote from: a3ruz on February 06, 2016, 09:20:07 PM
maybe Binding problem
do you bind the tx n RX ?

binding rx tx to pc?

Try usb port mapping/ relocation on pc.

Ops sorry ! i was wrong then !
which software  are you using ?
Is there any error poping up in your screen  ?
whether tx is detected by the PC  ?

Quote from: Tanmay.mathur on February 06, 2016, 09:54:03 PM
Try usb port mapping/ relocation on pc.

still same changed port from 3 to 6 and then to 30 still same problem

Quote from: a3ruz on February 06, 2016, 09:57:11 PM
Ops sorry ! i was wrong then !
which software  are you using ?
Is there any error poping up in your screen  ?
whether tx is detected by the PC  ?

I m using digitalradio soft ware the demo version no  error  and tx is detected

Try using T6 conifg !

Quote from: a3ruz on February 06, 2016, 10:14:35 PM
Try using T6 conifg !

t6 config not even picking up my controller

Are you sure about the COM port you selected ?

Quote from: a3ruz on February 06, 2016, 10:26:53 PM
Are you sure about the COM port you selected ?

yeahh m pretty sure about that, coz digital radio is picking it up and showing the data from transmitter correctly but the problem comes when pc want to send data towards transmitter it just don't do that.
So he kinda problem is that data is going one way, that is from transmitter to pc....

Try to replace pc to tx cable.
Or check throughly.

@Tanmay.mathur
that's a point !
make sure your connections are well
may be the TX port in your USB adapter is not reaching the RX of your transmitter 

hmmm let me switch back to windows 7 ...any suggestions about the ideal baud rate for pc-tx communication ... right now m using 115200

Try to check the tx end  of the cable there is a juction box , open it carefully and report any mis connection or breakage.

Quote from: Tanmay.mathur on February 06, 2016, 10:53:11 PM
Try to check the tx end  of the cable there is a juction box , open it carefully and report any mis connection or breakage.

mmm i am using a usb ttl module by prolific

so it's not the factory module with CT6B your connection might be wrong ! can you please post a pic of your connections

Quote from: a3ruz on February 06, 2016, 11:09:26 PM
so it's not the factory module with CT6B your connection might be wrong ! can you please post a pic of your connections

Fixed that...there was circuit error tx and gnd were shorted in pcb...

If you have arduino board or any ft232rl breakout board just cut the wire of tx to pc and connect through ft232rl board.It works well.