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First commit of MCC device, after removing from private ExperimentSystem repo.
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Lines changed: 236 additions & 1 deletion

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‎.gitmodules‎

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[submodule "MCCDaq-libusb-driver"]
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path = MCCDaq-libusb-driver
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url = https://github.com/SachsLab/MCCDaq-libusb-driver.git

‎CMakeLists.txt‎

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cmake_minimum_required(VERSION 2.8)
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PROJECT(MCCOutlet)
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# General settings
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LIST(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
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cmake_policy(SET CMP0042 NEW) # ENABLE CMP0042: MACOSX_RPATH is enabled by default.
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IF(UNIX)
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# c++11 for nullptr and others
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
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ENDIF()
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add_subdirectory(MCCDaq-libusb-driver)
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# Third party packages
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SET(REQUIRED_LIBS)
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# LSL
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set(LSL_ROOT_DIR ${CMAKE_CURRENT_LIST_DIR}/../../../labstreaminglayer/LSL/liblsl)
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find_package(LSL REQUIRED)
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LIST(APPEND REQUIRED_LIBS ${LSL_LIBRARIES})
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# Target executable
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add_executable(${PROJECT_NAME}
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${CMAKE_CURRENT_SOURCE_DIR}/MCCOutlet.cpp
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)
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target_include_directories(${PROJECT_NAME} PRIVATE
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mccdaq
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${LSL_INCLUDE_DIRS}
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)
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target_link_libraries(${PROJECT_NAME}
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mccdaq
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${REQUIRED_LIBS}
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)
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IF(WIN32)
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add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy_if_different
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${LSL_BINARY_RELEASE}
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$<TARGET_FILE_DIR:${PROJECT_NAME}>)
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add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy_if_different
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${LSL_BINARY_DEBUG}
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$<TARGET_FILE_DIR:${PROJECT_NAME}>)
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ENDIF()

‎MCCDaq-libusb-driver‎

Submodule MCCDaq-libusb-driver added at a71dd48

‎MCCOutlet.cpp‎

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#include "lsl_cpp.h"
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#include <iostream>
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#include <time.h>
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#include <stdlib.h>
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#include "mccdevice.h"
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using namespace std;
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MCCDevice* device;
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const char *channels[] = {"RAW1","SPK1","RAW2","SPK2","RAW3","SPK3","NC1","NC2"};
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unsigned short * data;
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int main(int argc, char* argv[])
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{
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string name = "MCCDaq";
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string type = "RawBrainSignal";
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try {
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device = new MCCDevice(USB_1608_FS_PLUS);
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device->sendMessage("AISCAN:STOP");
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device->flushInputData(); // Flush out any old data from the buffer
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device->sendMessage("AISCAN:XFRMODE=BLOCKIO"); // Good for fast acquisitions.
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//device->sendMessage("AISCAN:XFRMODE=SINGLEIO"); // Good for slow acquisitions
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device->sendMessage("AISCAN:SAMPLES=0"); // Set to continuous scan.
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device->sendMessage("AISCAN:RANGE=BIP5V");//Set the voltage range on the device
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device->sendMessage("AISCAN:LOWCHAN=0");
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device->sendMessage("AISCAN:HIGHCHAN=5");
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device->sendMessage("AISCAN:RATE=16384");
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//device->mSamplesPerBlock = 512;
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//device->mScanParams.samplesPerBlock = 32/8; // nSamples*nChannels must be integer multiple of 32.
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device->reconfigure();
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lsl::stream_info info(name, type, 6, 16384, lsl::cf_float32, string(name) += type);
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// add some description fields
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lsl::xml_element info_xml = info.desc();
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lsl::xml_element manufac_xml = info_xml.append_child_value("manufacturer", "MeasurementComputing");
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lsl::xml_element channels_xml = info.desc().append_child("channels");
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int k;
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for (k = 0; k < 6; k++)
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{
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lsl::xml_element chn = channels_xml.append_child("channel");
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chn.append_child_value("label", channels[k])
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.append_child_value("unit", "V")
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.append_child_value("type", "LFP");
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}
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// make a new outlet
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lsl::stream_outlet outlet(info);
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int dataLengthSamples = 512 * 6;
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std::vector<std::vector<float> > chunk(512, std::vector<float>(6)); // Used by LSL
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unsigned short *data = new unsigned short[dataLengthSamples]; // Pulled from the device.
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device->sendMessage("AISCAN:START"); // Start the scan on the device
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cout << "Now sending data...";
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unsigned t;
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int c, s;
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//double timestamp = lsl::local_clock();
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for (t=0; ; t++) {
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//device->getBlock();
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device->readScanData(data, dataLengthSamples);
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for(c=0; c<6; c++)
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{
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for(s=0; s<512; s++)
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{
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chunk[s][c] = device->scaleAndCalibrateData( data[(s*6)+c], c);
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}
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}
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outlet.push_chunk(chunk);// , timestamp);
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//timestamp += 512.0/16384.0;
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//cout << "Pushed chunk at timestamp " << timestamp << " (diff=" << lsl::local_clock()-timestamp << ")." << endl;
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}
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} catch(std::exception &e) {
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cerr << "Got an exception: " << e.what() << endl;
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}
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cout << "Press any key to exit. " << endl; cin.get();
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device->sendMessage("AISCAN:STOP");
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delete device;
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return 0;
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}

‎README.md‎

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# LSL-MeasurementComputing
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(Unsupported) Labstreaminglayer application for Measurement Computing device(s)
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(Unsupported) Labstreaminglayer application for Measurement Computing device(s).
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This application was pulled out of another private repository (ExperimentSystem).
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It is no longer in use and only very limited support is available.
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## Build
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`mkdir build`
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`cd build`
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`cmake ..` or, in Windows, `cmake .. -G "Visual Studio 12 Win64"`
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`make`
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In linux, it will be further necessary to modify the udev rules so that the program can access the device without root permissions. (See Q7 [here](ftp://lx10.tx.ncsu.edu/pub/Linux/drivers/README))
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`sudo cp ../61-mcc.rules /etc/udev/rules.d`
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`sudo udevadm trigger`
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## Use
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Run the application (e.g. `./MCCOutlet`)
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This will create a LSL stream called MCCDaq.
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It has 6 channels.
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It is sampling at 16384 Hz.
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This stream will push 512 float samples on every frame at 32 frames per second.

‎cmake/FindLSL.cmake‎

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# - Try to find the labstreaminglayer library
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#
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# LSL_FOUND - system has lsl
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# LSL_INCLUDE_DIRS - the lsl include directory
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# LSL_LIBRARIES - Link these to use lsl
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# LSL_BINARIES
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set(LSL_ROOT_DIR
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"${LSL_ROOT_DIR}"
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CACHE
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PATH
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"Directory to search for LabStreamingLayer API")
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IF (LSL_INCLUDE_DIRS AND LSL_LIBRARIES)
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# in cache already
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set(LSL_FOUND TRUE)
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ELSE (LSL_INCLUDE_DIRS AND LSL_LIBRARIES)
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IF(NOT LSL_ROOT_DIR)
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message(STATUS "LSL_ROOT_DIR not set. Use `cmake [...] -DLSL_ROOT_DIR=<path/to/LSL/liblsl>")
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message("\tDefaulting to ${CMAKE_CURRENT_LIST_DIR}/../../../LSL/liblsl")
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SET(LSL_ROOT_DIR ${CMAKE_CURRENT_LIST_DIR}/../../../LSL/liblsl CACHE PATH "Path to local liblsl")
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ENDIF()
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FIND_PATH(LSL_INCLUDE_DIRS
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NAMES
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lsl_cpp.h
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PATHS
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${LSL_ROOT_DIR}/include
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)
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IF (${CMAKE_C_SIZEOF_DATA_PTR} EQUAL 8)
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SET(_arch 64)
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ELSE()
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SET(_arch 32)
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ENDIF()
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# LSL prefixes all libs with 'lib'.
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# This is expected in UNIX.
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SET(MY_PREFIX "")
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# But is unusual in Windows.
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IF(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
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SET(MY_PREFIX lib)
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ENDIF()
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find_library(LSL_LIBRARY_RELEASE
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NAMES ${MY_PREFIX}lsl${_arch}
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PATHS ${LSL_ROOT_DIR}/bin
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)
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find_library(LSL_LIBRARY_DEBUG
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NAMES ${MY_PREFIX}lsl${_arch}-debug
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PATHS ${LSL_ROOT_DIR}/bin
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)
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SET(LSL_LIBRARIES
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debug ${LSL_LIBRARY_DEBUG}
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optimized ${LSL_LIBRARY_RELEASE})
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find_file(LSL_BINARY_RELEASE
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NAMES liblsl${_arch}${CMAKE_SHARED_LIBRARY_SUFFIX}
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PATHS ${LSL_ROOT_DIR}/bin
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)
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find_file(LSL_BINARY_DEBUG
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NAMES liblsl${_arch}-debug${CMAKE_SHARED_LIBRARY_SUFFIX}
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PATHS ${LSL_ROOT_DIR}/bin
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)
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INCLUDE(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(LSL DEFAULT_MSG LSL_INCLUDE_DIRS LSL_LIBRARIES LSL_BINARY_DEBUG LSL_BINARY_RELEASE)
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MARK_AS_ADVANCED(LSL_INCLUDE_DIRS LSL_LIBRARIES LSL_BINARY_DEBUG LSL_BINARY_RELEASE)
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ENDIF (LSL_INCLUDE_DIRS AND LSL_LIBRARIES)

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