Pyserial never read

[luca72]

Re: Pyserial never read

Hello
ALSO... YOU NEVER SPECIFY A VARIABLE TO RECEIVE THE DATA -- ANYTHING
YOU DO READ IS BEING DUMPED ON THE FLOOR!

I see the read data with a sniffer.

with the same serial caracteristic in delphi i obtain the right answer.

I use serial writestr and serial readstr.


If the serial package is anything like regular file I/O, that
line will buffer/block until a new-line character is received, then
return data upto/including the new-line. If the inbound data has
multiple lines, you need individual readlines.

For example i i send D0360000EC the right answer is
D0360000EC0000F FBC35DC44 etc...
i need new Line?

why if i use ser.read(10) i see only the first 5 byte and not the rest,
why if i use the inwaigth i answer that i have only 5 byte to read.


Regards

Luca

[Peter Hansen]

Re: Pyserial never read

Dennis Lee Bieber wrote:[color=blue][color=green][color=darkred]
>>>>dt = "D0360000EC "
>>>>print repr("".join([chr(int(dt[2*x:2*x+2],16)) for x in range(len(dt)//2)]))[/color][/color]
>
> '\xd06\x00\x00\ xec'[/color]

By the way, for future reference, this way beats the above hands down:
[color=blue][color=green][color=darkred]
>>> import binascii
>>> binascii.unhexl ify("D0360000EC ")[/color][/color][/color]
'\xd06\x00\x00\ xec'


-Peter

[luca72]

Re: Pyserial never read

Hello

i how can set with pyserial the following data?

[color=blue]
> byte delay= 40000[/color]
[color=blue]
> serial control line:
> dtr = high
> rts= low[/color]

Thanks Luca