A Signals Port can be opened by the impulse Viewer like a normal file. Instead of extracting the signal data from the file, it is read from an external source (e.g. TCP, a debug adapter or a bus interface).
- To add a port you need to have the Signals Ports view visible (Window > Show View > impulse > Signal Ports).;
- Click the "Add new Port" toolbar button of the "Signal Ports" view and select the port type. ;
- Configure the port settings and press ok.
Ports can be managed most easily with the "Signal Ports" view: (Window > Show View > impulse > Signal Ports). Alternatively you can also use the preferences (Preferences ->impulse > Ports).
- Press the "Edit Port" button of the "Signal Ports" view or use the context menu of the port/adapter element.
- If you have already opened the port in a viewer, press the "Edit Port" button in the viewers toolbar.
The port may read the signal data in one go or spread over a period of time (on-line). impulse allows the analysis of signal data while new data is still arriving.
- To open a port you need to have the Signals Ports view visible (Window > Show View > impulse > Signal Ports).
- Opening a port means opening the viewer with the signal content of the port. Press the "Open Port" button of the "Signal Ports" view or double-click the port item.
- To start the port, press the "Run/Stop" in the tool-bar.
Screen Cast: Logging and Tracing 4 - Combine multiple sources
The CSV Reader Configuration
The CSV Reader requires a configuration (CSV Configuration) to work. A configuration contains information about the char set, the delimiter, labels and and the actual data fields. Press "Add" and select "CSV Configuration" to create a new reader configuration:
- Char Set: Select the char set that is used by the log file (or "Default").
- Domain Base: Select the domain base. This represents is smallest domain change (e.g. 1 ms).
- Updates: This reader has some sample or standard configurations after installation. After an update of impulse, these configurations may also have been updated. To exclude a configuration from updating (e.g. because you have adapted the configuration for your application), you can set the flag "Do not update with latest version".
- First row: Indicated the first row (starting with 1) of data or labels field.
- No of columns: No of expected columns. If the no of columns is smaller than expected, an error will be thrown.
- First row has labels: Check if the first row contains labels. These labels will be used to name the generated signals or members. If not given, standard names (s1 ,s2,..) will be taken.
- Separator: The character to splits data and label fields.
- Quote: Select if your content uses double-, single- or no quote meta-characters. Quotes are used to enclose text content with separator characters or quotes.
- Mode:Select if the reader shall create a signal for each data column, or one struct signal with a member for each data column or log signals.
Name and configure the signals
Select member names and types for all columns that shall create a signal.
- Type in the member names. If you leave the field blank, either a standard name is taken (e.g. s1) or an optional label defines the signal name.
- Define the member type and a descriptor.
Not in sync !
Unfortunately the time-stamps are not synchronous. The dependency of the two logs shall be done by a log sample with the message "EISA bus registered". At the point of this sample, the system shall start with a delay of 10ms.
Synchronize the systemB adapter
To synchronize systemB, open the adapter and check "Enable Sync", then click on "Edit in eclipse script editor" to open the editor and copy/paste the script below.
The system will call the synchronisation script continuously while reading the input until the method isync.setSynced(position) is called. The script first request a pointer to a given signal. If the signal is available, it tries to move the pointer to the valid position. If successful it calculates the delta and calls isync.setSynced.
// base: root cell of type ICell (usually a record cell)
// insertPoint: root cell of this port of type PortScope
// isync: sync interface of type IPortSync
// console: console output of type MessageConsoleStream
var log2 /*:ISamplePointer:*/ = isync.getPointer('systemA\\de.toem.impulse.test.secondary.Log2');
if (log2 != null) {
var checked = 0;
var synced = false;
while (log2.hasNext() && checked < 100) {
var msg = log2.stringValueOf("Message");
if (msg != null && msg.equals("EISA bus registered")) {
isync.setSynced(log2.getPosition().add(DomainValue.valueOf("10ms")));
synced = true;
console.println("Synced: " + reset.getPosition());
break;
}
checked++;
log2.goNext();
}
if (!synced)
console.println("Sync not found!");
} else
console.println("Signal not found!");
The console shows the output:
Sync not found! Sync message at: 752ms
