mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-09 00:00:00 +01:00
nodetype:uldaq started integration for example
This commit is contained in:
Manuel Pitz
parent
505099c1d3
commit
4703aaebc5
2 changed files with 215 additions and 0 deletions
44
include/villas/nodes/uldaq.h
Normal file
44
include/villas/nodes/uldaq.h
Normal file
|
|
@ -0,0 +1,44 @@
|
|||
/** Node-type for uldaq connections.
|
||||
*
|
||||
* @file
|
||||
* @author Manuel Pitz <manuel.pitz@eonerc.rwth-aachen.de>
|
||||
* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
|
||||
* @copyright 2017-2018, Institute for Automation of Complex Power Systems, EONERC
|
||||
* @license GNU General Public License (version 3)
|
||||
*
|
||||
* VILLASnode
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*********************************************************************************/
|
||||
|
||||
/**
|
||||
* @ingroup node
|
||||
* @addtogroup uldaq Read USB analog to digital converters
|
||||
* @{
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <villas/queue_signalled.h>
|
||||
#include <villas/pool.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
/** @} */
|
||||
171
lib/nodes/uldaq.c
Normal file
171
lib/nodes/uldaq.c
Normal file
|
|
@ -0,0 +1,171 @@
|
|||
/** Node-type for uldaq connections.
|
||||
*
|
||||
* @file
|
||||
* @author Manuel Pitz <manuel.pitz@eonerc.rwth-aachen.de>
|
||||
* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
|
||||
* @copyright 2017-2018, Institute for Automation of Complex Power Systems, EONERC
|
||||
* @license GNU General Public License (version 3)
|
||||
*
|
||||
* VILLASnode
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*********************************************************************************/
|
||||
|
||||
#include <villas/node.h>
|
||||
#include <villas/plugin.h>
|
||||
#include <villas/config.h>
|
||||
#include <villas/nodes/loopback.h>
|
||||
#include <villas/memory.h>
|
||||
|
||||
int uldaq_start(struct node *n)
|
||||
{
|
||||
int ret;
|
||||
|
||||
// Get descriptors for all of the available DAQ devices
|
||||
err = ulGetDaqDeviceInventory(interfaceType, devDescriptors, &numDevs);
|
||||
|
||||
if(err != ERR_NO_ERROR)
|
||||
ret = -1;
|
||||
|
||||
// verify at least one DAQ device is detected
|
||||
if (numDevs == 0)
|
||||
{
|
||||
//printf("No DAQ devices are connected\n");
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
// get a handle to the DAQ device associated with the first descriptor
|
||||
daqDeviceHandle = ulCreateDaqDevice(devDescriptors[0]);
|
||||
|
||||
if (daqDeviceHandle == 0)
|
||||
{
|
||||
//printf ("\nUnable to create a handle to the specified DAQ device\n");
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
err = ulConnectDaqDevice(daqDeviceHandle);
|
||||
if (err != ERR_NO_ERROR)
|
||||
ret = -1;
|
||||
|
||||
int chanCount = 0;//change this to use more than one channel
|
||||
AiQueueElement queueArray[MAX_QUEUE_SIZE];
|
||||
for (i=0; i<chanCount; i++)
|
||||
{
|
||||
queueArray[i].channel = i;
|
||||
queueArray[i].inputMode = inputMode;
|
||||
queueArray[i].range = ranges[i % numRanges];
|
||||
}
|
||||
|
||||
err = ulAInLoadQueue(daqDeviceHandle, queueArray, chanCount);
|
||||
if (err != ERR_NO_ERROR)
|
||||
ret = -1;
|
||||
|
||||
|
||||
AiInputMode inputMode;//will be ignored when in queue mode
|
||||
Range range;//will be ignored when in queue mode
|
||||
int lowChan,highChan;//will be ignored when in queue mode
|
||||
// start the acquisition
|
||||
//
|
||||
// when using the queue, the lowChan, highChan, inputMode, and range
|
||||
// parameters are ignored since they are specified in queueArray
|
||||
err = ulAInScan(daqDeviceHandle, lowChan, highChan, inputMode, range, samplesPerChannel, &rate, scanOptions, flags, buffer);
|
||||
|
||||
|
||||
if(err == ERR_NO_ERROR)
|
||||
{
|
||||
ScanStatus status;
|
||||
TransferStatus transferStatus;
|
||||
|
||||
// get the initial status of the acquisition
|
||||
ulAInScanStatus(daqDeviceHandle, &status, &transferStatus);
|
||||
|
||||
|
||||
while(status == SS_RUNNING && err == ERR_NO_ERROR && !enter_press())
|
||||
{
|
||||
// get the current status of the acquisition
|
||||
err = ulAInScanStatus(daqDeviceHandle, &status, &transferStatus);
|
||||
|
||||
if(err == ERR_NO_ERROR)
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return queue_signalled_init(&l->queue, l->queuelen, &memory_hugepage, QUEUE_SIGNALLED_EVENTFD);
|
||||
}
|
||||
|
||||
int uldaq_stop(struct node *n)
|
||||
{
|
||||
int ret;
|
||||
|
||||
|
||||
// stop the acquisition if it is still running
|
||||
if (status == SS_RUNNING && err == ERR_NO_ERROR)
|
||||
{
|
||||
ulAInScanStop(daqDeviceHandle);
|
||||
}
|
||||
|
||||
ulDisconnectDaqDevice(daqDeviceHandle);
|
||||
|
||||
ulReleaseDaqDevice(daqDeviceHandle);
|
||||
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return queue_signalled_destroy(&l->queue);
|
||||
}
|
||||
|
||||
int uldaq_read(struct node *n, struct sample *smps[], unsigned cnt, unsigned *release)
|
||||
{
|
||||
int avail;
|
||||
|
||||
struct loopback *l = (struct loopback *) n->_vd;
|
||||
struct sample *cpys[cnt];
|
||||
|
||||
avail = queue_signalled_pull_many(&l->queue, (void **) cpys, cnt);
|
||||
|
||||
for (int i = 0; i < avail; i++) {
|
||||
sample_copy(smps[i], cpys[i]);
|
||||
sample_decref(cpys[i]);
|
||||
}
|
||||
|
||||
return avail;
|
||||
}
|
||||
|
||||
|
||||
static struct plugin p = {
|
||||
.name = "uldaq",
|
||||
.description = "Read USB analog to digital converters like UL201",
|
||||
.type = PLUGIN_TYPE_NODE,
|
||||
.node = {
|
||||
.vectorize = 0,
|
||||
.flags = NODE_TYPE_PROVIDES_SIGNALS,
|
||||
.size = sizeof(struct loopback),
|
||||
.parse = loopback_parse,
|
||||
.print = loopback_print,
|
||||
.start = uldaq_start,
|
||||
.stop = uldaq_stop,
|
||||
.read = uldaq_read
|
||||
}
|
||||
};
|
||||
|
||||
REGISTER_PLUGIN(&p)
|
||||
LIST_INIT_STATIC(&p.node.instances)
|
||||
Loading…
Add table
Reference in a new issue