Hi guys,
Firstly apologies if I at first seem like a knob or some such.
I was looking for a way to plug from my car into my PC to run diagnostics, and came across this ( I have a VX Commodore) funky cable; http://www.techedge.com.au/vehicle/aldl8192/8192hw.htm
This funky circuit which converts it into RS232, and seeing as how I don't have an RS232 port on any of my PC's, I was going to build in this circuit with a FT232R.
http://www.imaginaryindustries.com/blog/wp-content/uploads/2009/10/USBSchematic1.jpg
Anyhow, I've come up with the following circuit (which is essentially A+B = AB) and was wondering a few things; firstly in terms of powering the circuit, originally the ALDL-RS232 portion was powered by the RS232 Port, I was wanting to swap this out for the 12v in the car, via the 78L05, will this work? I was wondering if I could use this for the USB-RS232 VCC part as well...
Or would it be easier still to keep it as is.
I realise its a little messy here, I was just wanting to put it down to make it easier for drawing up a circuit board.
Also, the CTS, RTS, and DTR , do they need to be connected at all or is this ok to leave them separate.
I think ill have other questions but I can't remember them right now, so I'll get back to them
Thanks for any help.
Pat
Firstly apologies if I at first seem like a knob or some such.
I was looking for a way to plug from my car into my PC to run diagnostics, and came across this ( I have a VX Commodore) funky cable; http://www.techedge.com.au/vehicle/aldl8192/8192hw.htm
This funky circuit which converts it into RS232, and seeing as how I don't have an RS232 port on any of my PC's, I was going to build in this circuit with a FT232R.
http://www.imaginaryindustries.com/blog/wp-content/uploads/2009/10/USBSchematic1.jpg
Anyhow, I've come up with the following circuit (which is essentially A+B = AB) and was wondering a few things; firstly in terms of powering the circuit, originally the ALDL-RS232 portion was powered by the RS232 Port, I was wanting to swap this out for the 12v in the car, via the 78L05, will this work? I was wondering if I could use this for the USB-RS232 VCC part as well...
Or would it be easier still to keep it as is.
I realise its a little messy here, I was just wanting to put it down to make it easier for drawing up a circuit board.
Also, the CTS, RTS, and DTR , do they need to be connected at all or is this ok to leave them separate.
I think ill have other questions but I can't remember them right now, so I'll get back to them
Thanks for any help.
Pat
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