On 07/04/2013 12:52 PM, Lukasz Sokol wrote:
For RS485 adaptation, use a MAX232 like chip (to convert +-12 to ttl) and then a RS485 transceiver chip;
If you want to create hardware anyway, better use a PIC24 (pr PIC32) chip with USB plus a RS485 tranceiver chip. So you get rid of the " ATEN usb-to-serial cable (UC-232A)" and you have both sides of USB under your control so that you can do the USB procedure you want.
Another way is using a pre-programmed PIC chip available by Microchip with USB to-Serial software plus a RS485 tranceiver chip.
-Michael _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
