14:30 <DocScrutinizer05> kerio: no more cheating ;-) http://privatepaste.com/c2792a2668 (rigol-snapshot now using TMC header)

14:31 <kerio> lol

14:31 <kerio> yay

14:31 <DocScrutinizer05> need it for other raw data downloads, like :WAVeform:DATA?

14:32 <DocScrutinizer05> which can return arbitrary number of bytes

14:32 <DocScrutinizer05> (max 9999 per chink :-/ )

14:33 <DocScrutinizer05> >> The data returned contains 2 parts: the TMC data description header and the waveform data. The format of the TMC data description header is #900000dddd which is followed by the waveform data. Wherein, dddd denotes the number of bytes of the effective waveform data. <<

14:35 <DocScrutinizer05> seems when I want to download a 12MB buffer of wave data, I need to use a read loop that sets :WAVeform:STARt according to <number-of-bytes-already-read + 1>

14:38 <DocScrutinizer05> http://wstaw.org/m/2015/02/04/plasma-desktopdD1891.png

14:40 <DocScrutinizer05> sidenote: I failed to teach dd to read in ${numofbytes##*(0)}, got weird results

14:43 <DocScrutinizer05> http://privatepaste.com/18f1eed044

14:59 <DocScrutinizer05> another sidenote: storing waveform of a 12MB buffer to USB memstick in CSV format (results in ~130MB filesize) took 81 minutes on one memstick and 21 minutes on another more contemporary one (uSD adapter with 32GB uSD)

15:00 <DocScrutinizer05> Rigol must use blocksize=1

15:00 <DocScrutinizer05> and no fs buffers

15:17 <wpwrak> i suspect they may have a slow UART between CPU and the communication subsystem :)

17:01 <DocScrutinizer05> ok, max size for a :WAVeform:DATA? chunk seems ~200kBytes

17:02 <DocScrutinizer05> I.E send_cmd ':WAVeform:STAR 200001'; send_cmd ':WAVeform:STOP 400000';

17:02 <DocScrutinizer05> jr@saturn:~> rigol-waveform ':WAVeform:DATA?' xxx-stop400000-start200001

17:02 <DocScrutinizer05> magic: #; len: 9; bytes: 200000

17:03 <DocScrutinizer05> 300000 results in 0 length data chunk, due to empty "bytes: " TMC header value

17:04 <DocScrutinizer05> -rw-r--r-- 1 jr users 200000 4. Feb 17:54 xxx-stop200000

17:04 <DocScrutinizer05> -rw-r--r-- 1 jr users 200000 4. Feb 18:00 xxx-stop400000-start200001