Some Question to use AX-12+
Some Question to use AX-12+
by Liane
Mon May 28, 2007 8:46 am
I am a new hand in AX-12+ actuator!! I bought Some AX-12+ actuators, and i want to control by PC without CM5.So i use Max232 IC and one RS232 pin(DTR) to control TX and RX direction by AX-12 user's manul circuit diagram(half duplex uart) , but i found when i use the initial id 0x01 and initial baud rate 1M try to control AX-12+ actuator, but it didn't have any response, so i write program to search all id and all baudrate to control it(usb to rs232) but the AX-12 also didn't have any response, i don't know why, and what problems i have, i'm sure my Instruction Packet is correct, and the circuit board is ok, because i can control another actuator(AI) by this board.Could some one can help me? thank you!!
Liane[/img]
Liane[/img]
by JonHylands
Mon May 28, 2007 11:12 am
I don't know that anyone has successfully done this with a max-232. I've done it with an FT232, which is a completely different chip. What is the behavior of the DTR line on a max232 when you transmit versus not?
I would recommend you look at what Arnaud and BillyZelsnack did, and use exactly the same hardware they used.
- Jon
I would recommend you look at what Arnaud and BillyZelsnack did, and use exactly the same hardware they used.
- Jon
by Boyz
Mon May 28, 2007 12:50 pm
I just got this max232 working last Thursday. For the control line, i connected it to the max then connect it to the RTX (DB9 PIN 7) line on serial. I toggle this line in code to transmit and receive. I also lowered the baud rate to 57140. Can the max232 handle 1mbps? I was able to turn led on/off [i only tested that]. I can't get the software to read the receive message property as i don't know rs232. IF any one can help me with this it would be great. I'll try to get the R232 circuit up soon.
Cheers, Boyz
Cheers, Boyz
