On Tue, Aug 7, 2012 at 12:18 PM, Andrius Sutas <andrius.su...@gmail.com> wrote:
> Well thanks for the first bug!
>
> It looks like I have problems with interface closing and then reopening. If
> interface is not closed it works as expected. Will look into it tonight.
>
> s1 = serial("/dev/ptmx", 115200)
> srl_flush(s1);
> srl_write(s1, "Hello world!")
> data = srl_read(s1,12);
> char(data)
>
> srl_write(s1, "World!")
> data = srl_read(s1, 6);
> char(data)
>
> srl_close(s1)
>
> On Tue, Aug 7, 2012 at 9:37 AM, Juan Pablo Carbajal <carba...@ifi.uzh.ch>
> wrote:
>>
>> On Tue, Aug 7, 2012 at 4:37 AM, Andrius Sutas <andrius.su...@gmail.com>
>> wrote:
>> > Hey,
>> >
>> > please see alpha release of Serial I/O package.
>> >
>> > I am looking for any comments on code style, usability, naming etc.
>> > Also, it
>> > would be great if people could reply on which platforms they
>> > successfully
>> > (and not, which is more important) tested it. Sorry but Windows is not
>> > yet
>> > supported.
>> >
>> > Currently open flags are hardcoded to: O_RDWR | O_NOCTTY | O_SYNC, as I
>> > yet
>> > to decide what is the best way to maintain cross-platformability and
>> > ease of
>> > use (e.g. using string for parity setting and then doing switch
>> > according to
>> > platform being used instead of making the same flags from different
>> > platforms global to Octave), comments are welcome.
>> >
>> > Also, a simple example to get started (for testing adapter's RX and TX
>> > lines
>> > are connected together):
>> >
>> > s0 = serial() # Opens default serial port ttyUSB0 in default
>> > configuration
>> > of 115200, 8-N-1
>> >
>> > s1 = serial("/dev/ttyUSB1", 115200) # Opens serial port ttyUSB1 with
>> > baudrate of 115200 (config defaults to 8-N-1)
>> > srl_flush(s1); # Flush input and output buffers
>> > srl_write(s1, "Hello world!") # Blocking write call, currently only
>> > accepts
>> > strings
>> > data = srl_read(s1, 11) # Blocking read call, returns uint8 array of
>> > exactly 11 bytes read (data = [72 101 108 108 111 32 119 111
>> > 114
>> > 108 100])
>> >
>> > char(data) # Converts uint8 array to string, (ans = "Hello world", note:
>> > no
>> > exclamation mark)
>> >
>> > srl_baudrate(s1, 9600) # Change baudrate
>> > srl_bytesize(s1, 5) # Change byte size (config becomes 5-N-1)
>> > srl_parity(s1, "E") # Changes parity checking (config becomes 5-E-1),
>> > possible values [E]ven, [O]dd, [N]one.
>> > srl_stopbits(s1, 2) # Changes stop bits (config becomes 5-E-2), possible
>> > values 1, 2.
>> >
>> > s2 = serial("/dev/ttyS0", 9600, 6, "odd", 2) # Opens serial port ttyS0
>> > in
>> > 9600, 6-O-2 configuration
>> >
>> > srl_close(s0) # Closes and releases file descriptor
>> >
>> >
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>>
>> Hi Andrius,
>>
>> Thanks for the first release!
>>
>> When installing on Ubuntu 10.10, gcc version 4.4.5 (Ubuntu/Linaro
>> 4.4.4-14ubuntu5.1) I get the following deprecation warning
>>
>> srl_read.cc: In function 'octave_value_list Fsrl_read(const
>> octave_value_list&, int)':
>> srl_read.cc:92: warning: 'void Array<T>::resize(octave_idx_type) [with
>> T = octave_int<unsigned char>]' is deprecated (declared at
>> /usr/local/include/octave-3.6.2/octave/../octave/Array.h:459)
>>
>> but I guess this is something in core.
>>
>> I have no usb-to-serial at hand (I am away from my lab) but I tested
>> using virtual loopback using pseudo terminals.
>> (for the ones who wan to try: In linux install "socat" and then run
>> "socat -d -d PTY: PTY:")
>> The following lines work as expected
>>
>> pkg load serial
>> s1 = serial("/dev/ptmx", 115200);
>> srl_flush(s1);
>> srl_write(s1, "Hello world!")
>> data = srl_read(s1,12);
>> char(data)
>> srl_close(s1)
>>
>> However when run again I get
>>
>> s1 = serial("/dev/ptmx", 115200);
>> srl_flush(s1);
>> srl_write(s1, "Hello world!");
>> data = srl_read(s1,12);
>> error: srl_read: Invalid resizing operation or ambiguous assignment to
>> an out-of-bounds array element
>>
>> This may be due to the virtual loopback. I will try again with
>> hardware later, but it would be nice to see why there is a problem (if
>> there is!) with virtual loopbacks.
>>
>>
>> --
>> M. Sc. Juan Pablo Carbajal
>> -----
>> PhD Student
>> University of Zürich
>> http://ailab.ifi.uzh.ch/carbajal/
>
>
>
>
> --
> Andrius Šutas
>
> Skype: andrius.sutas
> Mob. Tel.: +37063443035
> GTalk: andrius.su...@gmail.com
Ok, happy to see the problem wasn't with the virtual loopback.
Please commit your code to the OF svn. (maybe in main/serial?)
@Carnë: What do you think?
--
M. Sc. Juan Pablo Carbajal
-----
PhD Student
University of Zürich
http://ailab.ifi.uzh.ch/carbajal/
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