On 10/01/2014 03:20 PM, Dan Ritter wrote:
On Sat, Sep 27, 2014 at 11:26:48PM -0400, Ethan Rosenberg, PhD wrote:
Dear List -
I have an Avery Berkel POS [Point Of Sale] scale which I wish to
integrate into a POS system. The output is sent to a RS232 port. I
do not know how to extract the data.
Here is what I have about the RS232 port:
ethan@meow:~$ dmesg | grep tty
[ 0.000000] console [tty0] enabled
[ 0.383854] 00:07: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a
16550A
[ 0.404352] 0000:00:03.3: ttyS1 at I/O 0x1c90 (irq = 17, base_baud = 115200)
is a 16550A
root@meow:/home/ethan# setserial -g /dev/ttyS[0123]
/dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4
/dev/ttyS1, UART: 16550A, Port: 0x1c90, IRQ: 17
/dev/ttyS2, UART: unknown, Port: 0x03e8, IRQ: 4
/dev/ttyS3, UART: unknown, Port: 0x02e8, IRQ: 3
More info from the manual --
9600 baud, 7 data bits, even parity, 1 stop bit
Transmits weight and scale status whenever ASCII 'W'<CR> is sent by the POS
terminal.
Well, one option would be to install minicom (apt-get will find
it for you), set your default serial port to /dev/ttyS0, set it
at 9600,7,e,1. Then plug it in and see if tapping W gets you
a response.
/dev/ttyS0 will look just like a file, if you're writing a
program, and you can read from it and write to it just like any
other file.
-dsr-
Dan -
EXCELLENT!!
Minicom set up as 9600,7,e,1.
Terminal ANSI
No response from tapping W.
TIA
Ethan
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