# Title: SEGGER J-Link BASE Classic USB JTAG/SWD Debug Probe
## Description: -
## Product type: Debugger
## Vendor: SEGGER Microcontroller GmbH
## Tags: Debugger, In-System Programmer, J-Link, SEGGER
## Price range: 430.0 - 430.0 GBP
## Link: https://thedebugstore.com/products/segger-8-08-00-j-link-base-classic
## Options
- Title: Default Title
## Collections
- [New Products](https://thedebugstore.com/a/llms/collections/new-products-debug-store)
- [In System Device Programmers](https://thedebugstore.com/a/llms/collections/in-system-device-programmers-catalogue-uk)
- [Development Tools](https://thedebugstore.com/a/llms/collections/development-tools-catalogue-uk)
- [SEGGER Microcontroller GmbH](https://thedebugstore.com/a/llms/collections/segger-microcontroller-gmbh-catalogue-debug-store)
- [SEGGER In-System Programmers](https://thedebugstore.com/a/llms/collections/segger-in-system-programmers-catalogue)
- [MCU Debuggers](https://thedebugstore.com/a/llms/collections/mcu-debugger-catalogue-uk)
- [SEGGER Debuggers](https://thedebugstore.com/a/llms/collections/segger-debugger-catalogue-uk)
- [Debuggers](https://thedebugstore.com/a/llms/collections/debuggers)
## Variants
- Default Title, SKU: 8.08.00, Available: yes, Inventory: 1
## Metafields
- manufacturer: SEGGER Microcontroller GmbH
- brand: SEGGER
- warranty: 12 months
- badge:
No reviews
- widget:
- title_tag: SEGGER J-Link BASE Classic 8.08.00 – USB JTAG/SWD Debug Probe | Debug Store
- description_tag: SEGGER J-Link BASE Classic (8.08.00) debug probe for Arm/RISC-V. 1 MB/s downloads, RTT & VCOM, broad IDE/MCU support, upgrade path to PLUS. Buy now at Debug Store.
- key_feature_1: Entry-level J-Link probe for Arm®/RISC-V MCUs with 1 MB/s downloads, RTT and VCOM.
- key_feature_2: 1 MB/s USB Downloads
- key_feature_3: Wide MCU & IDE Support
- key_feature_4: Real Time Transfer (RTT)
- key_feature_5: Built-In VCOM Interface
- key_feature_6: SWD/JTAG With SWO Up To 30 MHz
- backorder_label: If no stock is shown above, order now and we'll ship within 5 working days.
- brands: gid://shopify/Metaobject/56257708255
- breadcrumbs: ["gid://shopify/Collection/269202686141","gid://shopify/Collection/447917162719","gid://shopify/Collection/421912281311"]
- manufacturer: SEGGER Microcontroller GmbH
- warranty: 12 months
- mpn: 8.08.00
- customhs_code: 847180
- key_feature_2_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Achieve fast turnaround when flashing and debugging. The BASE Classic sustains up to 1 MB/s download to RAM with a 15 MHz target interface, reducing build-flash-test cycles and improving iteration speed on Cortex-M and other supported devices."}]}]}
- key_feature_3_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"One probe for many platforms. Works with tens of thousands of devices across Arm and RISC-V families and integrates with leading IDEs, unifying workflows across vendor toolchains and helping teams standardise their lab setup."}]}]}
- key_feature_4_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"High-speed, low-intrusion printf-style logging over the existing debug connection. RTT enables bi-directional messaging without halting the target, maintaining real-time behaviour while streaming diagnostics, events, or console I/O during development and test."}]}]}
- key_feature_5_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Presents a virtual COM port to the host over USB, simplifying serial diagnostics and command channels without a separate UART-USB adapter, extra cabling, or board changes. Useful for factories, service technicians, and long-term test rigs."}]}]}
- key_feature_6_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Supports SWD and JTAG on the standard 20-pin ARM header, with SWO sampling up to 30 MHz for data trace features supported by your device and tools, aiding event logging and performance observation."}]}]}
- key_feature_7: Cross-Platform, Free Updates
- key_feature_7_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Runs on Windows, macOS, and Linux. SEGGER’s software and firmware updates are included at no cost, ensuring ongoing device support and tooling improvements throughout the probe’s life."}]}]}
- key_feature_8_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Start with BASE, then add a software upgrade to PLUS for Unlimited Flash Breakpoints, J-Flash, Ozone and more. Protects your initial investment while unlocking advanced capabilities only when your project requires them."}]}]}
- key_feature_8: Clear Upgrade Path
- why_people_choose_3_title: Future-Proof Path
- why_people_choose_2_title: Efficient Debug I/O
- why_people_choose_1_title: Standardise Across Projects
- why_people_choose_1: One probe spans Arm and RISC-V devices and major IDEs, removing vendor lock-in and simplifying lab provisioning and support.
- why_people_choose_3: Start affordable, upgrade to PLUS when needed for unlimited flash breakpoints, production flash programming and the Ozone debugger.
- why_people_choose_2: RTT and VCOM deliver fast, low-overhead logging and console access without extra hardware, keeping targets responsive during testing.
- 1563316: What MCUs does the SEGGER J-Link BASE Classic support?***SIMP***It supports a very wide range of Arm cores (Cortex-M/R/A and legacy ARM7/9/11) and RISC-V devices listed in SEGGER’s supported-devices database.
- 1563318: How fast is programming and what are the signal limits?***SIMP***Up to 1 MB/s download to RAM with a maximum 15 MHz target interface and SWO sampling up to 30 MHz, subject to target/IDE limits.
- 1563319: Does J-Link BASE include Unlimited Flash Breakpoints, J-Flash or Ozone?***SIMP***Not with BASE. These are included with higher models or enabled by purchasing the J-Link BASE→PLUS upgrade licence.
- 1563320: Is RTT available on J-Link BASE?***SIMP***Yes. RTT is available on all J-Links and provides high-speed, low-intrusion logging via the debug connection
- 1563321: Can I use J-Link BASE with open-source tools (GDB/OpenOCD)***SIMP***Yes. J-Link integrates with GDB-based IDEs and is commonly used with OpenOCD-based toolchains.
- 1563322: How does it compare with more expensive debug probes?***SIMP***Higher-end probes (e.g., ULINKplus, IAR I-jet) add features like power measurement, isolation, or streaming trace. BASE focuses on core debug at lower cost.
- 1563323: Can the BASE Classic power the target?***SIMP***Yes. It can provide 5 V target supply (derived from USB) up to 300 mA; verify your board power requirements.
- 1563324: Does it work on macOS and Linux as well as Windows?***SIMP***Yes. J-Link software is multi-platform with installers for Windows, macOS and Linux.
- 1563325: Is Ethernet or a web interface available on BASE?***SIMP***No. BASE is USB-only. Network/web interfaces are features of higher-end J-Link models like PRO.
- 1563326: What if I later need production flash programming?***SIMP***Add the BASE→PLUS licence to gain J-Flash (and other tools) or choose a higher model.
- 1563327: Can I replace my old Macraigor Wiggler or Demon with J-Link BASE Classic for debugging?***SIMP***Yes. The SEGGER J-Link BASE Classic is a modern, USB-powered JTAG/SWD probe that fully replaces legacy parallel-port devices like the Macraigor Wiggler or Demon. It offers faster downloads, broader device support and compatibility with current IDEs on Windows, macOS and Linux.
- summary: The SEGGER J-Link BASE Classic (order no. 8.08.00) is a USB-powered JTAG/SWD debug probe delivering download speeds up to 1 MB/s with a maximum target interface speed of 15 MHz and SWO sampling up to 30 MHz. It supports a very broad range of microcontrollers, including Arm® Cortex-M/R/A, legacy Arm7/9/11 and RISC-V targets. J-Link software is multi-platform (Windows, macOS, Linux) and works with all major IDEs.
All J-Links include built-in VCOM (virtual COM port) and SEGGER’s Real Time Transfer (RTT) for high-speed debug I/O without impacting real-time behaviour. Firmware and software updates are provided free of charge.
Form Factors & Upgrade Path
J-Link BASE is available as Classic (this page) and BASE Compact with identical functionality. If you later need features such as Unlimited Flash Breakpoints, J-Flash, or Ozone, add the BASE→PLUS Upgrade or consider J-Link PLUS Classic or J-Link PRO.
Why Consider J-Link BASE?
It balances capability and cost: rapid downloads, wide device/IDE coverage, RTT/VCOM utilities, and a clear upgrade path. Engineers standardise on J-Link to cover multiple vendors and toolchains while keeping workflows consistent across projects.