Using the CMSIS DSP FFT function the RP2350 can make a 256 point floating 32bit fft in about 300us. The picture show a 10 FFT loop executed 10 time. To reduce overhead.

Sometime removing a 10k resistor can make your world better !

A raw POCSAG frame. Amazing

Few of my project will benefit of the processor upgrade :)

Continuing testing on the Xiegu X6200, the FT8 receiver is cool but totally gadget, the UI make it impossible to use. I really dream Xiegu releasing open source firmware.

Test in progress... 👀 Un serveur NTP GPS avec sortie configurable 1 PPS / 1 MHz / 10 MHz, alimentation 5V, en test pour faire du numérique en radio portable !

Testing the X6200 from xiegu. Pretty slick but I have a weird tone present at 1.8MHz see picture it’s from internal process.

I received the xiegu x6200 today. I’ll try a field test this week end. First thing I notice they used plastic on the face with connector meaning the foldable support are fixed on plastic… not a great idea

Tiny-GPU : un projet Open Source pour comprendre le fonctionnement des GPUs. Ce GPU minimaliste est idéal pour comprendre les principes de base des accélérateurs matériels modernes, avec une approche axée sur la simplification facilitant l'apprentissage. github.com/adam-maj/...

GitHub - adam-maj/tiny-gpu: A minimal GPU design in Verilog to learn how GPUs work from the ground up

A minimal GPU design in Verilog to learn how GPUs work from the ground up - adam-maj/tiny-gpu

Finishing the first prototype of my small 10W 2.4GHz amplifier.