2015年8月13日 · RS232 is a standard that defines a physical communication scheme using a serial connection. Similarly RS485 does the same. Both of these standards dictate the physical serial bus (with voltage levels and timing details) behind the communication scheme (that could be ModBus or a proprietary printer peripheral comm protocol)

2015年8月27日 · If you really need length, RS232 to RS422/485 converters are very inexpensive, and you can run the differential modes (422/485) over two wires for well over 100m. In your case, 5m really shouldn't be a problem at 38.4, as long as your cable is of reasonably quality.

2012年8月14日 · For "serial ports" and related standards such as RS232, the timing of the word is relative to the start bit, and the receiver merely samples the line at the right intervals thereafter. Other interfaces can be a bit more complicated and require fancier clock recovery using phase locked loops and algorithms.

2016年12月11日 · I always need to communicate with the TTL UART port on the MCU with a computer. When I talked about that, people always refer the UART port as an RS-232 port.

2016年12月11日 · When we say UART + RS232, it actually means a communication protocol runs on some media, with the chips like MAX232 to adapt the voltages. We can also use UART + USB (edit) We can also use USB-base chips to provide some virtual UART functionality (edit), with the chips from Prolific Technology, FTDI, Microchip, etc. where we replace the simple ...

2019年8月2日 · Harassment is any behavior intended to disturb or upset a person or group of people. Threats include any threat of violence, or harm to another.

2012年4月14日 · RS232 (aka EIA232/TIA232) describes the electrical (voltage levels) and mechanical (connector type and pinout) aspect of the interface. Wire colors are not part of this, you can do with them whatever you want. Like David says, you …

2012年6月25日 · Getting RS232 working between a randomly chosen terminal device and a computer or similar MAY have been a matter of plug in and go, or need minutes hours or days of playing and in some cases just would not work. RS232 does NOT provide powering per se although many people used it to power equipment in many different ways, none of them standard.

2023年5月16日 · I would like to ask if there is any difference in RS232 access between Winosws 10 and Windows 11 operating systems (both PRO versions). On the same HW HP ProBook 650 G4, the sw under Windows 10 connects the device without a problem, but in Windows 11 the sw reports to me that the port is occupied and subsequently does not connect the device.

2018年6月6日 · Now if I unplug the RS232 cable while its hung up, it returns back its normal operation. However I am able to establish serial communication using a USB to RS-232 cable instead of using a COM Port on the PC using the same win form application. Does win form applications using serial port class not work on win 10 for RS232 communication?