Stefan Brüns [Sat, 16 Apr 2016 21:38:05 +0000 (23:38 +0200)]
spci: Terminate all commands with a linefeed for all transports
While some transports add a terminating (carriagereturn+)linefeed
unconditionally, the USBTMC transport does not. At least the R&S HMO1002
requires the linefeed and locks up otherwise. Fixes bug #784.
This changes the TCP and VXI transport from CR+LF to LF only.
Also fixes a possible memory leak for VXI, where the temporary command
buffer was not freed in case of a write error.
Stefan Brüns [Sat, 16 Apr 2016 21:37:40 +0000 (23:37 +0200)]
scpi/usbtmc: fix remote locking according to USBTMC spec
According to USBTMC usb488 subclass spec, wValue hast to be 0 for both
LOCAL_LOCKOUT and GO_TO_LOCAL. At least required for R&S HMO1002, the
bad request results in a STALL. Fixes bug #783.
Diego F. Asanza [Wed, 13 Apr 2016 18:50:37 +0000 (20:50 +0200)]
Ensure DSLogic can be stopped.
After acquisition start, DSLogic stores samples in memory, and when done it
sends a USB packet with the trigger position.
This initial fillup can take some time. If the user requests a session stop
in between, the USB transfer is cancelled and the session hangs because it
is not closed properly.
This commit manages this case and closes the session properly when
acquisition is stopped by the user.
Wolfram Sang [Sun, 10 Apr 2016 19:02:52 +0000 (21:02 +0200)]
input: vcd: skip BOM at beginning of file
According to the infos I have, VCD files should be plain ASCII, but we
got report of a version adding a UTF8 BOM at the beginning of the file,
so we need to skip it.
Diego Asanza [Wed, 30 Mar 2016 17:04:54 +0000 (19:04 +0200)]
Fix DSLogic FPGA binary image upload and signal acquisition.
For some reason, uploading the FPGA binary into DSLogic in small chunks
does not work. In this commit, the whole binary image is loaded into memory
and transfer is done in one chunk.
Furthermore, the FPGA configuration structure was not initialized
properly. This was changed with the initialization values taken from the
original DSLogic software.
hp-3457a: Implement workaround for double-precision data
Certain output modules do not understand double-precision data.
Although we need double precision to represent the full resolution
of 7.5 digit readings, temporarily convert data to single precision
so that the output modules understand it. While the reasing might be
off by a few counts, we ensure the output modules do not display
completely bogus data.
hp-3457a: Implement basic configuration and sampling
KNOWN ISSUES:
- When sampling with 100 NPLC, the poll function will timeout a few
times before the first sample is acquired. Increasing the timeout
passed to sr_scpi_source_add() will cause all the other commands to
be processed slowly, producing a sampling rate of about one sample
every ten seconds.
- Support for plug-in cards (44491A and 44492A) is not implemented.
- Support for AC, AC+DC and four-wire resistance measurements is not
implemented.
- Support for configuring the frequency measurement source is not
implemented.
hwdriver: Add configuration key for number of powerline cycles
High precision multimeters have a special setting, called "number of
powerline cycles" (NPLC) which determines the integration time of the
ADC in terms of the power line period. Some devices need their NPLC
adjusted from the default value before they can measure at their full
rated precision.
scpi/libgpib: Place device in local mode before closing handle
Devices connected on a real GPIB bus are placed in remote mode when
opening them. libgpib does not automatically place devices back in
local mode when closing the handle. It is thus possible to lock out a
GPIB device by probing it with libsigrok.
This happens on the HP 3457A meter, which does not have a "LOCAL"
command, and must be put back in local mode via GPIB handshake.
ibloc() takes care of this, and it does it on a per-device basis,
such that other devices on the GPIB bus are not affected.
scpi/libgpib: Print error string instead of number on errors
libgpib has an error_string which formats a numeric error code into a
human-readable description. Use that instead of printing the numeric
code, as it makes debugging easier.
Soeren Apel [Sun, 27 Mar 2016 21:25:30 +0000 (23:25 +0200)]
srzip: Optimize analog output saving
- Don't set capturefile if no logic channels are saved
- Don't set total probes if no logic channels are saved
- Save analog channels without index gaps (e.g. probe1/probe4)
Note: This commit is based on the initial implementation by
Christer Ekholm (but stashed into one commit), with some adaptations
(forward porting, coding style and consistency fixes) by Uwe Hermann.
Wolfram Sang [Sun, 21 Feb 2016 09:06:10 +0000 (10:06 +0100)]
session: allocate correct amount of memory in sr_packet_copy
We want the size of the struct, not of a pointer to the struct. And to
be absolutely future proof, dereference the pointer we are assigning the
memory to (not the one we are copying the data from). Found by Coverity,
CID 50858.
Aurelien Jacobs [Mon, 1 Feb 2016 21:37:36 +0000 (22:37 +0100)]
beaglelogic: use standard # operator instead of ugly __STRING macro
Also note that the __ namespace is reserved by POSIX for its private
usage, so user land software should never rely on any kind of API
with a __ prefix.
Uwe Hermann [Fri, 29 Jan 2016 21:57:48 +0000 (22:57 +0100)]
Bump libtool version (not package version) to 3:0:0.
The last release (0.3.0) had the libtool version (current:revision:age)
set to 2:0:0. Since this release adds, removes, and changes interfaces,
the new version is 3:0:0.
For session sources without a file descriptor to poll a negative number
should be passed for the fd parameter. The hung-chang-dso-2100 driver
currently passes 0 instead, which is the stdin stream. Fix the issue by
passing -1 for the fd parameter.
Wolfram Sang [Sat, 9 Jan 2016 07:17:57 +0000 (08:17 +0100)]
input: vcd: avoid needless copying
Current code moves the identifier string one byte to the front to
overwrite the bit value, so 'tokens[i]' is a string to compare against
the desired value. This copying is unnecessary, just pass a properly
setup pointer.
Wolfram Sang [Sat, 9 Jan 2016 17:27:14 +0000 (18:27 +0100)]
input: vcd: try to continue when a vector was found
No need to bail out on vectors. As long as there are tokens left, we can
try to parse the rest. Also, print a message so the user knows what's
going on. Here is a testcase vcd:
Wolfram Sang [Sat, 9 Jan 2016 16:40:10 +0000 (17:40 +0100)]
input: vcd: properly bail out on missing identifiers
If we hit the missing identifier case, then we reached the end of the
token list. So, we should break out of the loop, and not continue.
Otherwise we will go past the end of the array as this minimal testcase
shows:
Soeren Apel [Fri, 8 Jan 2016 22:00:55 +0000 (23:00 +0100)]
Trace32 import module: Send trigger only once
As we're downsampling, several record time stamps can match the specified
trigger time. For this reason, it's possible that several trigger packets
are sent when a file is loaded. This prevents the issue and sends a
trigger packet only on the first matching record.
Uwe Hermann [Thu, 7 Jan 2016 22:22:42 +0000 (23:22 +0100)]
lecroy-logicstudio: Fix some compiler warnings on MinGW.
src/hardware/lecroy-logicstudio/protocol.c: In function 'handle_fetch_samples_done':
src/hardware/lecroy-logicstudio/protocol.c:261:3: warning: passing argument 6 of 'libusb_fill_bulk_transfer' from incompatible pointer type
recv_bulk_transfer, (void *)sdi, USB_TIMEOUT_MS);
^
In file included from ./src/libsigrok-internal.h:31:0,
from src/hardware/lecroy-logicstudio/protocol.h:26,
from src/hardware/lecroy-logicstudio/protocol.c:23:
/home/uwe/sr_mingw/include/libusb-1.0/libusb.h:1546:20: note: expected 'libusb_transfer_cb_fn' but argument is of type 'void (*)(struct libusb_transfer *)'
static inline void libusb_fill_bulk_transfer(struct libusb_transfer *transfer,
^
src/hardware/lecroy-logicstudio/protocol.c: In function 'fetch_samples_async':
src/hardware/lecroy-logicstudio/protocol.c:314:4: warning: passing argument 6 of 'write_registers_async' from incompatible pointer type
handle_fetch_samples_done);
^
src/hardware/lecroy-logicstudio/protocol.c:200:12: note: expected 'libusb_transfer_cb_fn' but argument is of type 'void (*)(struct libusb_transfer *)'
static int write_registers_async(const struct sr_dev_inst *sdi,
^
src/hardware/lecroy-logicstudio/protocol.c: In function 'lls_start_acquisition':
src/hardware/lecroy-logicstudio/protocol.c:1122:3: warning: passing argument 6 of 'libusb_fill_interrupt_transfer' from incompatible pointer type
recv_intr_transfer, (void *) sdi, USB_TIMEOUT_MS);
^
In file included from ./src/libsigrok-internal.h:31:0,
from src/hardware/lecroy-logicstudio/protocol.h:26,
from src/hardware/lecroy-logicstudio/protocol.c:23:
/home/uwe/sr_mingw/include/libusb-1.0/libusb.h:1602:20: note: expected 'libusb_transfer_cb_fn' but argument is of type 'void (*)(struct libusb_transfer *)'
static inline void libusb_fill_interrupt_transfer(
^
Wolfram Sang [Sun, 3 Jan 2016 21:27:43 +0000 (22:27 +0100)]
dmm: vc870: render POWER_FACTOR as such and not as frequency
The primary display is the power factor, the secondary is the frequency.
This got mixed up, so change the order. We also need to fix the
conversion factor.
Wolfram Sang [Sun, 3 Jan 2016 21:27:42 +0000 (22:27 +0100)]
dmm: vc870: keep the order when processing modes
is_power_apparent_power is index 0 of function 0x39, so it is better to
process it first and the later indices after that (we need to add
another one with a different patch later).