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19-Pin Cortex-M Adapter

Seamless connectivity for Flasher

  • 20-pin 0.1" JTAG to 19-pin 0.05"
  • Arm-defined Cortex-M interface
Buy now Compare Flasher adapters Documentation
  1. 1.Overview
  2. 2.Technical specifications
  3. 3.Pinout & schematics
  4. 4.Suitable products
    1. 4.1.Flasher
    2. 4.2.J-Link

Overview

J-Link 19 pin Cortex M

The 19-Pin Cortex-M Adapter provides a convenient connection between J-Link or Flasher and Cortex-M based target hardware. It adapts the standard 20-pin 0.1" JTAG interface to the 19-pin 0.05" Samtec FTSH connector defined by Arm and supports JTAG, SWD, and SWO connections.

Technical specifications

Interfaces
JTAG, SWD, SWO
Input connector
20-pin, 0.1" JTAG
Output connector
19-pin, 0.05" Samtec FTSH
TRST connection
Not connected by default; connectable via solder bridge NR1
Target compatibility
Cortex-M and compatible non-Cortex-M targets

Pinout & schematics

Schematic diagram showing connections for a 19-pin and a 9-pin programmer probe. Various pins are labeled, including VTREF, TDI, TMS, TCK, TDO, nSRST, and VSUPPLY, with a "DNP" note on one pin and "GND" marked at the bottom.

Suitable products

Flasher

A handheld device labeled "Flasher" from SEGGER, primarily gray with blue rubber edges. It features three status indicators: "Ready" (OK), "Not ready," and "Fail," along with a "PROG" button. This device is used for programming and debugging electronics.

J-Link

Image of a J-Link debugging device from SEGGER. The device has a rectangular shape with a black casing and a silver panel featuring the "J-Link" logo and SEGGER branding. It includes several buttons and indicators for user interaction.

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