J-Link ULTRA+
J-Link ULTRA+ is a JTAG/SWD debug probe designed for Arm/Cortex. It is fully compatible to the standard J-Link and works with the same PC software.
Based on the highly optimized and proven J-Link, it offers even higher speed as well as target power measurement capabilities due to the faster CPU, built-in FPGA and high-speed USB interface.
Key features
- Download speed up to 4 MB/s
- Unlimited breakpoints in flash memory (Flash Breakpoints)
- Use with Ozone, RDI/RDDI and J-Flash
- Additional LEDs for power and RESET indication
- Built-in VCOM functionality
- Supports a broad range of microcontrollers
- Supports direct download into RAM and flash memory
- Free software updates
Software
All software is included free of charge. It comes with licenses for all J-Link related SEGGER software products, such as J-Link Unlimited Flash Breakpoints, Ozone, RDI/RDDI, J-Flash, J-Link GDB Server, providing the optimum debugging solution for professional developers.
Multi-platform
As a multi-platform solution, J-Link ULTRA+ comes with the setup and control software for Linux, macOS and Windows. Software and firmware updates are included. Similarly, use on all currently supported target devices, and any that will be added, is also included.
J-Flash
J-Flash is part of the J-Link Software and Documentation Package and allows the programming of the internal and external flash memory of a microcontroller-based embedded system via J-Link.
Speed
Up to 4 MB/s download speed make J-Link ULTRA+ the fastest debug probe on the market.
Flash Breakpoints
The J-Link ULTRA+ comes with an additional feature, called Unlimited Flash Breakpoints. Unlimited Flash Breakpoints allow the user to set an unlimited number of breakpoints when debugging in flash memory.
Ozone — The J-Link debugger
Ozone is the debugger for J-Link and J-Trace. It includes all well-known debug controls and information windows and makes use of the best performance of J-Link and J-Trace debug probes.
Standalone debugger
Ozone focuses on debugging. There are no compiler or project window distractions. All debug windows can be moved, resized and docked, to provide you with the workspace you need.
Ozone offers all well-known debug controls and information windows, and more. Instruction trace, power graph, live watches, and real-time terminal I/O further extend these capabilities.
Debugging with Ozone
Performance analyzer
With J-Link’s High-Speed Sampling technology, Ozone can sample and visualize an embedded system’s variables over time. Checking values and flags in the debugger, while the target keeps running, is easy.
J-Link’s power measurement features enable you to record the power consumption of your target device in a debug session. This is especially helpful when you are developing a low-power device and need to know how power consumption changes when you enable or disable certain components.
Performance analysis with Ozone
Technical specifications
| General | |
| Supported OS | Microsoft Windows (x86/x64), Linux (x86/x64/Arm), macOS (x86/Apple Silicon) |
| Electromagnetic compatibility (EMC) | EN 55022, EN 55024 |
| Operating temperature | +5°C … +60°C |
| Storage temperature | -20°C … +65 °C |
| Relative humidity (non-condensing) | Max. 90% rH |
| Mechanical | |
| Size (without cables) | 100mm x 53mm x 27mm |
| Weight (without cables) | 73g |
| Available interfaces | |
| Ethernet interface | 100 Mbit/s |
| USB interface | USB 2.0 (Hi-Speed) |
| Target interface | JTAG/SWD 20-pin |
| JTAG/SWD interface, electrical | |
| Target interface voltage (VIF) | 1.2V … 5V |
| Current drawn from target voltage sense pin (VTRef) | < 25µA |
| Target supply voltage | 5V (derived from USB voltage) |
| Target supply current | Max. 300mA |
| Reset type | Open drain. Can be pulled low or tristated |
| Reset low level output voltage | VOL <= 10% of VIF |
| For the whole target voltage range (1.2V <= VIF <= 5V) | |
| LOW level input voltage (VIL) | VIL <= 40% of VIF |
| HIGH level input voltage (VIH) | VIH >= 60% of VIF |
| For 1.2V >= VIF <= 3.6V | |
| LOW level output voltage (VOL) with a load of 10 kOhm | VOL <= 20% of VIF |
| HIGH level output voltage (VOH) with a load of 10 kOhm | VOH >= 80% of VIF |
| For 3.6 <= VIF <= 5V | |
| LOW level output voltage (VOL) with a load of 10 kOhm | VOL <= 20% of VIF |
| HIGH level output voltage (VOH) with a load of 10 kOhm | VOH >= 80% of VIF |
| JTAG/SWD interface, timing | |
| Target interface speed | Max. 50 MHz |
| SWO sampling frequency | Max. 100 MHz |
| Data input rise time (Trdi) | Trdi <= 20ns |
| Data input fall time (Tfdi) | Tfdi <= 20ns |
| Data output rise time (Trdo) | Trdo <= 10ns |
| Data output fall time (Tfdo) | Tfdo <= 10ns |
| Clock rise time (Trc) | Trc <= 3ns |
| Clock fall time (Tfc) | Trc <= 3ns |
| Analog power measurement interface | |
| Sampling frequency | 200 kHz |
| Resolution | 50 uA |
Package content
J-Link ULTRA+
USB cable
20-pin, 0.1″ target ribbon cable