AX-12 control with PIC32

[i-Bot]

There is an FTDI clone for PIC here:
http://www.microchip.com/forums/tm.aspx?m=261649

I didn't try it, but have done similar on other USB processors. Please be aware that using a non FTDI device violates the FTDI driver license conditions on the PC.

[def]

Hello I-bot;
i got a FTDI ft232 shipped to me today.
now I have one doubt, which pin should I use as Direction control?
is it that I should short RTS and CTS and use them as direction control?

[i-Bot]

Is it a chip or a board you have ?

The direction control is driven by the TXDEN output which is mapped by default to the CBUS 2 I/O. You should not need RTS and CTS.

[def]

I just have the chip; board i'll print myself

[def]

Hello everyone
today i printed my circuit and everything is working fine.
I'm able to detect the dynamixel.
but now i have a different issue.
when i give a goal position to my ax-12; it doesnot moves; or moves randomly and doesnt reach the desired position.
I dont understand what can be the problem

[i-Bot]

Does the AX12 move OK with the Robotis utilities ?

Do you write the (H) and (L) position bytes in the same instruction packet ?

[def]

I'm using dynamixel wizard
whenvery i write a new position, torque enable turns to off, speed becomes zero and it doesnot go to desired position

[i-Bot]

Is there an load on the servo ?

What is the MAX TORQUE and TORQUE LIMIT set to ?

Is your power supply OK ?

[def]

I think the problem is with power supply.
my adaptor can supply max 500mA