Hiromi Posted January 30, 2020 Report Share Posted January 30, 2020 Can I connect PC-Link to RS232c? If possible, how is exclusive use with USB performed? What kind of connection is made inside the ECU? We plan to use RS232c and USB as needed. Quote Link to comment Share on other sites More sharing options...
Adamw Posted February 1, 2020 Report Share Posted February 1, 2020 Yes you can connect via RS232 but you can only use one at a time - you cant use USB and RS232 together at the same time. Also if a long RS232 cable is left connected to the ECU even when not in use then the USB connection will not work - the capacitance of the serial cable will interupt the USB so you need to completely unplug the RS232 cable when not in use. RS232 is available on the CAN1/RS232 socket. Pinout like this: Quote Link to comment Share on other sites More sharing options...
Hiromi Posted February 1, 2020 Author Report Share Posted February 1, 2020 Thank you! Is the GND of RS232 and GND of the expansion connector common? How many mA can be supplied to + 5V of the expansion connector? I'm thinking of running RS232 devices with the + 5V expansion connector. Quote Link to comment Share on other sites More sharing options...
Simon Posted February 3, 2020 Report Share Posted February 3, 2020 Keep it to under 500mA and you will be fine on the 5V out. Yes the ground is common. Quote Link to comment Share on other sites More sharing options...
Hiromi Posted February 4, 2020 Author Report Share Posted February 4, 2020 Thank you, very helpful. Quote Link to comment Share on other sites More sharing options...
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