Shameless plug for a low-cost JTAG/SPI/UART/I2C tool/platform (works with OpenOCD etc.) if you don't mind ordering your own PCBs & components and doing a bit of

Shameless plug for a low-cost JTAG/SPI/UART/I2C tool/platform (works with OpenOCD etc.) if you don't mind ordering your own PCBs & components and doing a bit of soldering (Well, you ARE all hackers...) https://github.com/linker3000/shukran https://github.com/linker3000/shukran