Questions tagged [programming]

Questions about programming parts (FPGAs, Flash, etc.) Many software programming questions should be asked instead on Stack Overflow.

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Esp32 idf coding

I want learn how to code esp32 using idf NO Arduino. I have found the best course that is perfect however it is not in English. It is in Portuguese. Does anyone know of better option that shows step ...
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1answer
35 views

PIC16F Byte Shift - Assembly Code

Need to shift 3bytes each in RAM buffer to the next 3 RAM locations in a circular manner. The below code is ok, but is there any compact method to do it? ...
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2answers
105 views

STM32F4 series: what does the '->' operator? [on hold]

Reading some C files related to programming an STM32F4 series Arm controller, I found the following instruction: ...
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1answer
68 views

How to program STM32f411RE chip?

I've developed a prototype using the STM NUCLEO (NUCLEO-F411RE) board and now that I am happy with design I am now in the process of testing everything together on my own PCB. All the other components ...
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0answers
75 views

In C both static local variable and static global variable memory allocation [migrated]

In C both static local variable and static global variable with same name declaration are done in same file. They both are stored in data segment memory. When I compile code why it is not throwing ...
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11 views

Where to find StdPerieph Library for SPL programming with Nucleo-F746ZG?

I want to start SPL programming with Keil software. I did not find the StdPeriph Library for Nucleo-F746ZG board. Where to find the library on the ST website?
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1answer
82 views

Embedded Software Reliability Metric is short-term or long-term in time

If I test an embedded software (and the product based on this software) today and it fulfills all the customer requirements successfully at this point in time then I can safely say that this software ...
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4answers
1k views

Programming bare microcontroller chips

I'm an electronics hobbyist and I have done a lot of electronics projects using launchpads like MSP430G2553, Arduino and Tiva C Series, so I never faced any problems to upload code to these ...
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3answers
112 views

int functions with no return statement

In a course I am taking on embedded systems, I program LPC1768s which are based on ARM using C. The main functions are always of int return type. However, there ...
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44 views

What is the corresponding MIPS code? [duplicate]

Assume that variables f, g, h, i and j are assigned to registers $s0, $s1, $s2, $s3 and $s4, respectively. Also, assume that the base address of the arrays A and B are in registers $s6 and $s7. ...
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3answers
32k views

Which programming languages are supported to program Arduino?

I would like to start to play with Arduino. I've read that C and C++ are the official languages but I've also found other way to communicate using Python or Java for example. Which programming ...
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3answers
308 views

Differene between DS3231sn and DS3231mz

Which one is better? DS3231SN have accuracy ±2ppm and the other one have ±5ppm.What is actually meant by the accuracy and what are the other differences.? What type of internal oscillators are used by ...
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1answer
56 views

STM32 USB programming using the OTG interface [closed]

I'm new to ARM based STM32 controller. The Controller which I'm using STM32F427VIT6. It has USB OTG FS interface where I need to program it using the USB interface. Is it possible to program or I have ...
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1answer
32 views

Wireless SWD interface

Is it possible to have a wireless SWD interface with a simple Data and clock line like the cheap STM32 ST-Link clones. My initial, and flawed, idea was that I would have an ST-link plugged into the ...
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1answer
43 views

ATTiny167 USB Programming

On Aliexpress I am finding many cheap development boards with ATtiny167 and a USB connector. From what I can gather these boards permit USB programming through USB emulation. Can anybody point me to ...
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3answers
381 views

Programming PIC18 with PICKit 3 and IPE

I am trying to to program a PIC18F4550 with IPE and PICKit 3. The steps I am following are as follows: First, write the code and compile it to obtain an .hex ...
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2answers
2k views

Why does MPLAB IDE has so many compilers?

I have learnt that the MPLAB IDE has different compilers like C18, XC8 and HI-Tech. I want to know the following things: Why are there different compilers when one can do the job? Are certain ...
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0answers
834 views

TrueStudio flashing board gives “Unknown MCU found on target error”

I am attempting to flash a custom PCB using Atollic TrueStudio and a Nucleo board. I have the PCB connected to the SWD header on the Nucleo. In TrueStudio I have set the target device and am using ST-...
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2answers
111 views

Lattice LCMXO2-256HC-4SG32C CHECK_SECURITY_PROTECT_KEY error

Trying to progamm LCMXO2-256HC-4SG32C with this ebay progammer. The programmer works fine with LCMX02-1200HC-4TG144C, but with LCMXO2-256HC-4SG32C it gives me the following output: ...
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1answer
398 views

How to send data from PC to an AVR32 microcontroller using USB?

I have a board with an AVR32 (AT32UC3B0512) and a USB port. I would like to send data to the USART, using a terminal from my PC, but I don't know how to use the USB to access the RXD and TXD pins. I ...
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2answers
474 views

How to program 89C52

I am new to this site. I am now working on microcontrollers. I successfully burnt hex file to 89S52 using arduino as a programmer. But I want to program 89C52 as this is the cheapest atmel ...
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1answer
21 views

Using port 0 in AT89C52 without pull up resistors

So at my university professor gave us following scheme to program this double 7 segment display on the right. At start I tried to simply adress it using P0=(someData) although it didn't work. Then I ...
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4answers
2k views

FPGA - DIY Programming

I've been programming microcontrollers for a few years now, and I've just discovered FPGA's after taking a digital design class. After doing some research into different FPGA's, development boards, ...
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8answers
2k views

Does each microcontroller line have its own programming language/syntax?

I've programmed the Arduino and have started programming the Teensy. They are similar to C but there are slight nuances in the programming language. For instance, in Arduino's C you call a function ...
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2answers
690 views

Bulding a physical calculator from scratch [duplicate]

As you can probably tell I am relatively new to the electronics scene and I'm rather stuck on a project I'm doing for school. I am on my second year of an Electrical engineering degree, tasked to do ...
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0answers
185 views

STM32 Input capture PWM frequency measurement problem using HAL

I'm trying to measure time passed between two external interrupts generated by rising edges of a PWM signal (generated using a IC 555 timer). Point is to determine the frequency of the signal. I'm ...
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1answer
135 views

JTAG trace length affecting programming ability

I've recently had a design made that requires a programming port to be located quite far from the device I'm trying to program. This has meant that my cJTAG traces are around 13cm long. I think as a ...
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2answers
88 views

8051 microcontroller problem to find execution time of part1 for a given code

For the below mentioned 8051 assembly code: Time elapse: MOV R0,#100 Part 1 \$ \quad \, \, \,\,\$ : MOV R1,#50 Part 2 \$ \quad \, \, \,\,\$ : MOV R2,#248 Part 3 \$ \quad \, \, \,\,...
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2answers
63 views

What is the purpose of this statement in Verilog?

I see syntax quit similar to this very frequently: 4'd0 Sometimes it is associated with an assign statement: assign S0 = 2'b00; I tried searching online however I could not find any sources.
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8answers
5k views

Functional Programming with MCU(s)

Functional languages like Haskell, LISP, or Scheme allow a programmer to work quickly using the functional programming paradigm. They do have their inefficiencies, but my application places greater ...
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2answers
64 views

PIC12F675 micro controller programming

I want to use PIC12F675 to control a relay such that when a switch is pressed, it should generate an output signal which should be ON for 2 seconds and then OFF for 15 seconds. This should continue ...
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4answers
4k views

GUI library for HMI Cortex M

Hi I am basically using cortex m3 series of processors for our application. I am looking for some GUI library that can be used for HMI. Is there any GUI libraries available? I recently heard about Qt. ...
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1answer
22k views

Code for ripple effect of an 8x8x8 LED cube Arduino

I want to code the ripple effect animation as seen in the first 7 seconds of this video. This is how my code works now. It uses 9 shift registers(74HC595); 8 for the 64 columns and 1 for the 8 layers....
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2answers
85 views

Programming of Microcontrollers and other peripherals [closed]

This is a question based on the theory which I am reading and related to one design which I am trying to understand section by section We are having microcontrollers and some peripherals are ...
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3answers
597 views

Looking for a PIC board with webserver [closed]

I am looking for a PIC which has a webserver builtin or has the ability to install one(with) . I want to experiment connecting in reasonable price please)two PIC/PICAXE boards or different type and ...
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0answers
53 views

AVR ATmega328 low fuse wrtiten and issue

I am using an Arduino Uno as the hardware programmer together with avrdude as the software programmer for flashing an Atmega328. I have noticed PB0 was set to ...
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0answers
41 views

Programming AT89LP52 microcontroller like an AT89S52

I'm trying to run my code on the new AT89LP52 chip which Microchip (A.k.a. Atmel) believes can be a direct replacement for the AT89S52. I am able to program the AT89S52 with my programmer and ...
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1answer
79 views

SPI programming flash chip(s) - connecting HOLD and WP pins

I am trying to learn with SPI programming and have started with this guide using a Beaglebone Black. I have one DIP8 package connected via breadboard for testing, and another SOIC8 package on-board ...
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1answer
62 views

How does G-code determine what pins I used to set CNC motors at? [closed]

I want to develop a simple C# application to control a self-made CNC machine using Arduino Uno. I want to use G-code to accomplish that. Now what I don't understand is how G-code is interpreted in ...
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1answer
121 views

How to write more than one page at once in Winbond W25Q32JV

I am using Eclipse IDE for firmware development. I am using Quectel MC60 module with Winbond W25Q32JV (4 MB memory). The thing is that I am able to read/write single page. I am facing issue with ...
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3answers
85 views

Burning hex files into multiple micro-controllers at a time. [closed]

I am using attiny88 and the usbasp programmer. Right now I am burning 1 micro at a time. But it is a time-consuming process during the production. Is there any way to burn multiple microcontrollers ...
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2answers
42 views

Automated equivalents of Potentiometers

I am currently working on a project to create an amplifier which can use both physical and digital inputs to change the resistance of a potentiometer. Is this possible without using sliders? I know ...
166
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16answers
81k views

Is C++ suitable for embedded systems?

A common question, here and elsewhere. Is C++ suitable for embedded systems? Microcontrollers? RTOSes? Toasters? Embedded PCs? Is OOP useful on microcontrollers? Does C++ remove the programmer too ...
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1answer
43 views

How To Program Atmega256rfr2 using ISP?

I have a new custom built PCB circuit incorporating an atmega256rfr2 chip. I really can't program the chip using AVRISP MK11 based programmer (Olimex brand). But it can program the Atmega328p DIP chip ...
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7answers
6k views

Is it possible to draw circuits through code?

Is there a better way not by writing netlist files. something like: ...
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1answer
236 views

How to read temperature with STM32F103C8T6? [closed]

How can I read the temperature using an NTC thermistor with an STM32F103C8T6 board??
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1answer
383 views

Can't program multiple chips using JTAG

SOLVED - LOOK UNDER "EDIT 3" SUBTITLE. I've got this two chips: Board with LPC4337(left) and board with ATSAM3X8E(right), JTAG interconnected, using FT2232H chip soldered on the board of the left as ...
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2answers
858 views

How does an “if” statement and “always@” statement work in Verilog?

I'm trying to program an 8 level stack register for a Program Counter. It is working well enough, but for some reason, when I test it, some combinations of inputs produce unexpected results. This is ...
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1answer
1k views

LED strip Windows computer controlled

I've bought a bunch a LED strips A friend has built a system using http://resolume.com/ with http://www.heroicrobotics.com/products/pixelpusher controllers, however from what I've read this is geared ...
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1answer
83 views

ILI9341 Library for arduino

I'm writing an arduino library for ILI9341 tft display. I tried to write on the display but nothing appears. Why? How can I solve the problem ? My source code: ...