Alternatives to JLink - michael-ring/mbf GitHub Wiki

Segger's J-Link is in my personal view one of the best Debug-Probes you can get but it is not the only one. Here are some alternatives that also can work for you:

ST-Link from ST Microcontroller or ST-Link clones from China

Use those products to debug boards that have a STM32 chip from ST. To use them there are two ways forward:

Use GDBServer from STMCube IDE

STM32CubeIDE

or use

Open source version of the STMicroelectronics STlink Tools

Black Magic Probe (can also be flashed on a ST-Link or ST-Link Clone)

Black Magic Probe on github

OpenOCD

OpenOCD.org

xPack OpenOCD

Raspberry Pi as a Debug Probe (OpenOCD based)

Raspberry Pi as Debug Probe (Bitbanging)

and (possibly better performance):

RaspberryPi as Debug Probe (SPI)