Run-Time Observability
for Embedded Systems

A platform for testing, measuring, and adjusting the runtime variable behavior of embedded systems

Compatible with embedded system setups using C/C++

Trusted by engineers from industry to public research

VAT Vakuumventile

Welgo Systems GmbH

Chair of actiation technology UDS

Used for controller tuning, sensor validation and more. Read the case study here.

Observe, validate, and adjust

the behavior of runtime variables

The es:scope® platform is designed for testing, measuring, and adjusting the runtime variable behavior of embedded systems. It incorporates the functionality of oscilloscopes, data acquisition devices, and calibrators.

es:scope® is compatible with any existing embedded system setup. Simply integrate the open middleware into your C or C++ project, configure it, and establish the connection. No ELF provision or additional measurement equipment is necessary.

Faster validation and optimization of embedded systems

Flexible

es:scope® is hardware- and interface-independent. Its open, C-based middleware integrates into existing systems with minimal overhead and impact on system performance. The signals are configured in code, enabling version control, reproducibility, and plug-and-play usage.

Fast

Access to up to 64 internal runtime variables is possible as high-speed, real-time measurement signals. The rate at which data can be transferred is limited only by the capabilities of the interface and controller. Thanks to hardware acceleration, these signals can be plotted using an oscilloscope-like interface.

Practical

Teams using es:scope® report faster iteration cycles during optimization and validation, along with reduced reliance on external tools. Pricing remains below typical procurement thresholds, making it practical for small teams and individual engineers.

Oscilloscope Features

Measurement Visualization

Variables selected from the embedded system are transferred to es:scope®, where they are plotted in real time with high bandwidth in the time, frequency, or XY domain. Additional information is provided by signal statistics, such as the average signal value. Similar to a traditional oscilloscope, signal triggers, cursor measurements, adjustable time windows, and various display parameters are possible.

DAQ Features

Measurement Recording

You can start or stop a recording of signals manually via a computer or automatically via the embedded system. This enables developers to implement automated testing procedures and detect and record specific events and anomalies.

// Activate recording of anomaly in q current
if (current_iq > 20) {
    recording_active = true;
    es_prot_set_cmd(&USB_COMM,'RECORD_CMD');
}

// Deactivate recording
if (recording_active && current_iq < 19) {
    es_prot_set_cmd(&USB_COMM,'NO_CMD');
}

Calibrator Functions

Measurement Interaction

You can adjust parameters using asynchronous commands during runtime. This allows for calibration with immediate visual feedback. Additionally, developers can send user-defined commands to an embedded system’s terminal array to alter its behavior or operating mode.

Middleware Functions

Measurement Middleware

es:prot™ is a lightweight, open-source C middleware that runs directly on embedded systems. It establishes a measurement oriented connection between firmware and es:scope®, enabling real-time access to internal variables and parameter tuning during runtime.

The middleware configures „virtual probes“ for any variable and manages commands, signals, and data flow independent of hardware or communication interface.

void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
    // Catch the measurements after each PWM cycle
    if (htim == &htim6) 
    {
        es_prot_write_tx_value(&USB_COMM, 0, get_i_d());
        es_prot_write_tx_value(&USB_COMM, 1, get_i_q());
        es_prot_write_tx_value(&USB_COMM, 2, get_abs_angle());
        es_prot_manager(&USB_COMM);
    }
}
  

Get started with es:scope®

Run-Time Observabilityfor Embedded Systems