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| 09:35 | topi` | We're about to receive our first HB Gates. We also ordered a bunch of RS485 click boards from mikroelektronika. Now, the question arises, how does one access the RS485 as a serial device from linux? |
| 09:59 | topi` | it seems RS485 is not just a "simple UART", since up to 32 devices can be connected on the same bus, and only 1 device can drive the bus at a time |
| 10:00 | topi` | so there needs to be a mechanism to tell the RS485 chip to put the driver into high impedance. Googling suggests that the RTS line can be used for this |
| 10:01 | topi` | "485 software handles addressing, turn-around delay, and possibly the driver tri-state features of 485. " |
| 10:05 | vpeter | topi`: I would just buy one USB to RS485 adapter for this purpose. |
| 11:09 | topi` | USB sucks |
| 11:10 | vpeter | PCIe card then :) |
| 11:13 | vpeter | On some embedded systems you have combined RS232/RS485 port. |
| 12:17 | topi` | I'm trying to sell the Gate to one of our customers :) |
| 12:34 | vpeter | topi`: If I may ask for what purpose you are using this systems? |