Difference between revisions of "Scale Communication"
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= Configuring the computer's serial port = | = Configuring the computer's serial port = | ||
| + | To list the line parameters for ttyS0: | ||
| + | stty -F /dev/ttyS0 -a | ||
| + | |||
| + | Example: | ||
<pre> | <pre> | ||
| − | stty | + | # stty -F /dev/ttyS0 -a |
| + | speed 9600 baud; rows 0; columns 0; line = 0; | ||
| + | intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; | ||
| + | flush = ^O; min = 1; time = 0; | ||
| + | -parenb -parodd cs8 hupcl -cstopb cread clocal -crtscts | ||
| + | -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff -iuclc -ixany -imaxbel -iutf8 | ||
| + | opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 | ||
| + | isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke | ||
</pre> | </pre> | ||
| + | |||
| + | <pre> | ||
| + | stty -F/dev/ttyS0 -hupcl ignbrk -icrnl -ixon -opost -onlcr -isig -icanon - | ||
| + | iexten -echo -echoe -echok -echoctl -echoke igncr | ||
| + | <pre> | ||
Revision as of 18:34, 22 December 2013
Cable
RS-232 Serial Communication Ports
Depending on whether the scale is wired for DTE or DCE, it may require a null modem cable or replacing and rewiring the serial connector.
Configuration
Set up the scale. 9600 baud, 8 bit, no parity
Testing communication
Terminal Emulation program like Minicom
Configuring the computer's serial port
To list the line parameters for ttyS0: stty -F /dev/ttyS0 -a
Example:
# stty -F /dev/ttyS0 -a speed 9600 baud; rows 0; columns 0; line = 0; intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0; -parenb -parodd cs8 hupcl -cstopb cread clocal -crtscts -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff -iuclc -ixany -imaxbel -iutf8 opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke
stty -F/dev/ttyS0 -hupcl ignbrk -icrnl -ixon -opost -onlcr -isig -icanon - iexten -echo -echoe -echok -echoctl -echoke igncr
