Category Archives: STM32


Very affordable DIY oscilloscope

Powerful DIY oscilloscope using STM32

This DIY oscilloscope project is powered by a STM32 processor and the details of its design are shared by Vitorbnc on Instructables. As an oscilloscope, it displays signal waveform, voltage magnitude, frequency, and duty cycle. Besides, it also features capabilities to measure inductance, temperature and pressure.

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STM32’s internal RTC

VBAT Pin

A Real Time Clock (RTC) is a timing element dedicated for keeping time. In many applications, especially where precise timed-operations are needed to be performed, a RTC is a very useful tool. Examples of such applications apart from clocks and watches include washing machines, medicine dispensers, data loggers, etc. Basically a RTC is a timer-counter but unlike other timers of a MCU it is much more accurate. Previous to this post, we explored STM32 timers but those were useful for applications like PWM generation, time-bases and other waveform-related tasks. Those were not suitable for precise time-keeping. In most 8-bit MCUs

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STM32 Digital-to-Analogue Converter (DAC)

Block Diagram

After having played with Analogue-to-Digital Converter (ADC) of STM32 micros, the obvious next internal hardware block to deal with is the Digital-to-Analogue Converter (DAC). As the name suggests this block has just the complementary function of ADC. It converts digital binary values to analogue voltage outputs. The DAC block has several uses including audio generation, waveform generation, etc. Typically in most 8-bit micros, this block is unavailable and its need is somewhat loosely met with Pulse Width Modulation (PWM) block. This is partly because of their relatively less hardware resources and operating speeds. All STM32 micros also have PWM blocks

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STM32 Analogue-to-Digital Converter (ADC)

STM32 Clock Tree

Most of us who have experienced 8-bit MCUs previously know how much important it is to have an Analogue-to-Digital Converter (ADC) built-in with a microcontroller. Apart from other hardware extensions unavailable in the early era microcontrollers, many former 8051 microcontroller users shifted primarily to more robust Atmel AVRs and Microchip PICs just for this important peripheral. I don’t feel it necessary to restate the advantages of having such a peripheral embedded in a micro. In traditional 8-bit MCUs aforementioned, the ADC block is somewhat incomplete and users have to work out tricky methods to solve certain problems. The ADC block

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Integrating STM32F4xx Standard Peripheral Library with MikroC Pro for ARM

IDE

STM32F4xx series micros are far more advanced than anything else similar in the market. Apart from being fast 32-bit MCUs, STM32F4s have rich hardware peripheral support with DSP engine bonus. In terms of capabilities versus price tag, STM32F4s are all-square-winners. In recent times there’s a surge in the STM32 user community. STM32 Discovery boards are proliferating like never before. In several occasions recently, I received tangible amounts of queries from readers regarding integration of STM32F4xx Standard Peripheral Library (SPL) with MikroC Pro for ARM and so even though it is not one of my mainstream posts on STM32 ARMs, I

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