2019年1月29日 · The RS-232 Standard has gone through several revisions over the years. In the original RS-232, the signal would flip between positive and negative 25 volts.

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.

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 ...

2010年12月7日 · [First off, the "RS" in RS-232 denotes "Recommended Standard", which it was when it was released in the 1960s. Since eons however it is an accepted standard by the EIA as EIA-232, and the old name was officially abandoned sinc

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.

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)

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.

I have one controller which processes data from a weigh scale. With it I can capture data using hyper terminal on a PC (RS232 communication - standard DB9 connector). Now I want to analyze it on another PC as well. Unfortunately, my controller has only one RS232 output.

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.

2018年7月3日 · \$\begingroup\$ RS232 pin naming is a bit of a special case because they defined things in terms of DTE (Data terminal equipment) and DCE (Data communications equipment) and managed to cause utter confusion. DCE has the data output on the RX pin and input on the TX pin, DTE is the opposite.