channel upload example using API. More...

#include "local.h"
#include <errno.h>
#include "acq2xx_api.h"
#include "acq_transport.h"
#include "popt.h"

Data Structures
class	FetchesData
class	FetchesRaw
class	FetchesVolts
class	ChannelReader
Defines
#define	MAXBUF 1024
#define	DBUF 0x100000
Enumerations
enum	IARG { I_CHANNEL, I_LENGTH, I_START, I_STRIDE }
Functions
static void	channel_decode (const char *range)
int	main (int argc, const char **argv)
Variables
int	acq200_debug
char *	device
poptContext	opt_context
char	command [MAXBUF] = {}
char	response [MAXBUF] = {}
short	dbuf [DBUF]
int	channel1 = 1
int	channel2 = 1
int	start = 0
int	length = 0
int	stride = 1
const char *	outfile = "-"

Detailed Description

channel upload example using API.

usage: acqread [opts] ch1[..chN] [length] [start] [stride]

ch1..chN : channel selection eg 1..32
length : #samples to upload [default: all]
start : start sample [default: 0]
stride : stride [interval, subsample] value [default:1]
opts:
- --url URL : URL of device
- --device d: device name
- --board b: board number b [integer dvice index]
- --slot s: slot number s [now same as board]
- --output file : output to file, can be sprintf() format eg file.%02d
- --verbose : set verbose [debug] level
- --version : print version

example:


# localhost:10009 is an ssh port-forward tunnel to target:53504

# read raw data channels 1-8, 1000 samples

./x86/bin/acqread -o /tmp/data.%02d -f localhost:10009 1-8 1000
ls -l /tmp/data.0?
-rw-rw-r-- 1 pgm pgm 2000 2008-05-12 11:38 /tmp/data.01
..
-rw-rw-r-- 1 pgm pgm 2000 2008-05-12 11:38 /tmp/data.08

hexdump -e '4/2 "%04x " "\n"' </tmp/data.01 | head
ffd2 ffd3 ffd0 ffd0
ffd4 ffcd ffd0 ffd1
ffd4 ffd2 ffd7 ffd0

# read volts channels 1-8, 1000 samples

./x86/bin/acqread -o /tmp/volts.%02d -V -f localhost:10009 1-8 1000

ls -l /tmp/volts.0?
-rw-rw-r-- 1 pgm pgm 4000 2008-05-12 11:45 /tmp/volts.01
..
-rw-rw-r-- 1 pgm pgm 4000 2008-05-12 11:45 /tmp/volts.08

hexdump -e '4/4 "%f " "\n"' </tmp/volts.01 | head
0.149466 0.149778 0.148840 0.148840
0.150091 0.147902 0.148840 0.149153
0.150091 0.149466 0.151030 0.148840

Definition in file acqread.cpp.