So it worked but once I let the board sit not being powered overnight it stopped working. Do you or anyone know how to get the UART2 working and stay working once powered down and then turned back on?
On Wednesday, November 19, 2014 3:44:26 PM UTC-8, George Lu wrote: > > On Wed, Nov 19, 2014 at 3:26 PM, John Mladenik <[email protected] > <javascript:>> wrote: > >> I need to be able to send raw data out of the serial port using >> Bonescript command b.serialWrite. I set up an HTML Bonescript to send >> data and then looked on the logic analyzer to see what bit pattern is sent >> out. The pattern is always the ASCII value of the character whether the >> variable is a text or number. >> >> Does anyone know how to pass to b.serialWrite a value so that the UART >> outputs that value? >> >> so I want to have >> >> var port = '/dev/ttyO2'; // set UART port >> var data = 0x55 ; >> b.serialWrite(port, data ); >> >> and for the bit pattern coming out of the UART to be 01010101 >> >> I tried using String.fromCharCode(data); but this only works for values >> up to 127 (0x7F) since that is all ASCII goes to. This must not support >> extended ASCII? >> >> here is my html/javascript to test this functionality >> >> <html> >> <body> >> >> Uart Byte:<br> >> <input type="number" name="value" id='value'/> >> <button onclick="uartWr()">SEND</button> >> >> </body> >> <head> >> <script src="/bonescript.js"></script> >> <script> >> function uartWr() { >> var b = require('bonescript'); >> var port = '/dev/ttyO2'; // set UART port >> var data = document.getElementById('value').value; >> // set baud rate and buffer size >> var options = { >> baudrate: 9600 >> }; >> >> b.serialWrite(port, data ); >> >> } >> </script> >> >> </head> >> </html> >> > > I recall BoneScript uses https://github.com/voodootikigod/node-serialport > for serial port interface. > You should be able to send raw binary with b.serialWrite(port, [0x55]); > Data should be a buffer (http://nodejs.org/api/buffer.html). > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
