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Q&A

Posts tagged microcontroller

Synonyms: microcontrollers MCU micro-controller-unit micro-controller-units microcontroller-unit microcontroller-units

1 child tag

Anything about microcontrollers, a.k.a. MCUs (Micro Controller Units).

A microcontroller is a complex integrated circuit which comprises a microprocessor (CPU), memory (both RAM and some form of non-volatile memory, usually flash nowadays) and a series of hardware peripherals (GPIO ports, timers, communication interfaces, etc.) all on the same chip.

An MCU can be programmed, by storing a program (the firmware) in its non-volatile program memory, to perform specific tasks which often involve controlling external equipment or circuitry.

This tag doesn't have a detailed wiki yet.

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Q&A Level shifting of a 3 state logic pin

I want to design a simple battery charger using MCP73831/2. This chip has a 3-State state pin according to the table below: I have a 3.3V MCU and I want to connect this pin to a GPIO. The MCU is...

2 answers  ·  posted 2y ago by dekker‭  ·  last activity 3mo ago by Nick Alexeev‭

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Q&A Suggestions for projects in Embedded systems [closed]

Currently, I enrolled myself in a master's course this fall in the field of Computer Engineering. I am excited to create my microcontroller projects. I want to understand how much complexity is exp...

0 answers  ·  posted 8mo ago by aditya98‭  ·  closed 8mo ago by Nick Alexeev‭

Question microcontroller
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Q&A Disabling breakpoints in real-time section of firmware

Got a question about hazardous breakpoints in real-time firmware. Does C have a mechanism which lets me mark a section of code such that breakpoints are somehow ignored or not allowed just in that...

3 answers  ·  posted 8mo ago by misk94555‭  ·  last activity 8mo ago by Gnomo‭

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Q&A What Sine-Wave Oscillator can be controlled with a microcontroller?

I need a Sine Wave Oscillator circuit that can allow me to control its frequency with a microcontroller. Until now all the topologies that I have found if the frequency is changed, a change in the ...

2 answers  ·  posted 1y ago by deleted user  ·  edited 8mo ago by Lorenzo Donati‭

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Q&A How to change the polarity of an input using a single switch?

I have an mcu pin and I want to sense a voltage up to 24V to 36V. I want to connect some outputs on the board I'm designing and I don't know whether those outputs will provide a voltage or will be...

1 answer  ·  posted 10mo ago by DeadMouse‭  ·  edited 8mo ago by Lorenzo Donati‭

Question microcontroller BJT
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Q&A Contradiction between Routh's algorithm and checking with some value

I am designing a control system controlled by some microcontroller K: The open loop gain is $G_{o}(s) = \frac{K}{s(s^{2}+4s+3)}$ and the closed loop gain is obviously $G_{c}(s) = \frac{K}{s(s^{...

0 answers  ·  posted 10mo ago by Volpina‭

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Q&A Why do large RAM chips not have a serial interface?

I have a PIC32MZ2048ECG064, a 64-pin 32-bit microcontroller with 512kB RAM. This is not enough for my purposes, I need to extend it by at least 32MB, preferably 64 or 128. I believe this means I ca...

0 answers  ·  posted 2y ago by Keelan‭

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Q&A recommendation for chip programming connection (pogo?)

Background: I have several microcontroller based projects with custom PCB that have been in very-low-volume production, but the quantities are starting to go up. (batch sizes now ~100 and threateni...

1 answer  ·  posted 3y ago by Pete W‭  ·  last activity 3y ago by Olin Lathrop‭

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Q&A CAN Bus - Internal Oscillator

Every time I needed CAN, I had just put external crystal and didn't think about it after that. It worked fine. I am wondering however whether the precisions of MCU internal oscillator is sufficien...

3 answers  ·  posted 3y ago by 2kind‭  ·  edited 3y ago by Lundin‭

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Q&A Control circuit for Power Converters

There is always a mixed response when comparing power management ICs (PMIC) and microcontrollers in the application of power converters (I mean as pwm controllers). What are the advantages and dis...

2 answers  ·  posted 3y ago by aditya98‭  ·  last activity 3y ago by Olin Lathrop‭

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Q&A I have to choose: Arduino or Raspberry pi.

Moderator Note If this site were mature, this question would be closed because it solicits opinions, or is too specific about particular models. In the interest of site activity, answers are being...

2 answers  ·  posted 3y ago by coquelicot‭  ·  last activity 3y ago by Olin Lathrop‭

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Q&A How come the registers in a micro are application specific?

This is an energy meter reference design guide I found in microchip's website. In a microcontroller how come the registers are specific to the project?Please explain.

3 answers  ·  posted 3y ago by aditya98‭  ·  last activity 3y ago by manassehkatz‭

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Q&A When to use RTOS?

When should I consider using RTOS in my application? Every microcontroller has a good number of interrupts then what is the need of it?

1 answer  ·  posted 4y ago by aditya98‭  ·  last activity 4y ago by Olin Lathrop‭

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Q&A What is a bootloader, and how would I develop one?

I've heard that a bootloader is code that runs on a microcontroller, and is used to get your application code onto the micro. How does that work? Is there anything special that needs to be done to...

1 answer  ·  posted 4y ago by Olin Lathrop‭  ·  edited 4y ago by Olin Lathrop‭

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Q&A How to access a hardware register from firmware?

When writing firmware in C for a microcontroller, how can I directly access a memory location such as a hardware peripheral register, given its absolute address? Is there a way to do this safely an...

1 answer  ·  posted 4y ago by Lundin‭  ·  edited 4y ago by Lundin‭

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Q&A Tools required to burn code in a quad flat microcontroller

I always have a doubt that how do firmware engineers dump code into a quad flat microcontroller? For a starter kit there is already connection like USB or some SPI ,I2C headers to burn the code,als...

1 answer  ·  posted 4y ago by aditya98‭  ·  last activity 4y ago by Olin Lathrop‭

Question microcontroller