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A device which includes a central processing unit (CPU), memory, and (generally) an assortment of I/O peripherals (UART, ADC, DAC, general-purpose I/O, I2C, etc.) in a tightly-coupled standalone package.

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Good approaches to implement more than one time-critical function using a microcontroller?

For square waveform you should use a PWM peripheral that is PLLed with your XTAL using some kind of counter to know when to cycle (for setting the fewquency). Every datasheet will tell you how to do t …
AlexanderBrevig's user avatar
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STM32F103 - Simple blinky, but voltage on TMS & TDI

I'm having some trouble getting my STM32F103 to work as I intend. On my working board (previously flashed with Espruino firmware) I have LEDs attached to TMS TCK and TDI lines. After flashing it with …
AlexanderBrevig's user avatar