http://www.raywenderlich.com/24252/beginning-game-programming-for-teens-with-python
https://sysprogs.com/w/how-we-turned-8-popular-stm32-boards-into-powerful-logic-analyzers/        How We Turned 8 Popular STM32 Boards into Powerful Logic Analyzers      March 23, 2017  Ivan Shcherbakov           The idea of making a “soft logic analyzer” that will run on top  of popular prototyping boards has been crossing my mind since we first  got acquainted with the STM32 Discovery and Nucleo boards. The STM32  GPIO is blazingly fast and the built-in DMA controller looks powerful  enough to handle high bandwidths. So having that in mind, we spent  several months perfecting both software and firmware side and here is  what we got in the end.    Capturing the signals  The main challenge when using a microcontroller like STM32 as a core  of a logic analyzer is dealing with sampling irregularities. Unlike  FPGA-based analyzers, the microcontroller has to share the same  resources to load instructions from memory, read/write th...
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