9-bit-serial

问题 I have a netcore app that opens the serial port, and writes "parity error" on the console once a parity error gets detected. It works fine in Windows 10 but can't get it to work under Linux. My assumption is that the OS is not passing the parity error to netcore. For checking the port settings I run: stty -D /dev/ttyS0 -ignpar inpck then I run: stty -D /dev/ttyS0 -a and the settings seem to be properly set (-ignpar inpck) as expected. Then I run my netcore 3 app but parity error is not

问题 I have a netcore app that opens the serial port, and writes "parity error" on the console once a parity error gets detected. It works fine in Windows 10 but can't get it to work under Linux. My assumption is that the OS is not passing the parity error to netcore. For checking the port settings I run: stty -D /dev/ttyS0 -ignpar inpck then I run: stty -D /dev/ttyS0 -a and the settings seem to be properly set (-ignpar inpck) as expected. Then I run my netcore 3 app but parity error is not

问题 RS-232 communication sometimes uses 9-bit bytes. This can be used to communicate with multiple microcontrollers on a bus where 8 bits are data and the extra bit indicates an address byte (rather than data). Inactive controllers only generate an interrupt for address bytes. Can a Linux program send and receive 9-bit bytes over a serial device? How? 回答1: The termios system does not directly support 9 bit operation but it can be emulated on some systems by playing tricks with the CMSPAR flag. It