Questions about programming parts (FPGAs, Flash, etc.) Many software programming questions should be asked instead on Stack Overflow.
2
votes
2answers
83 views
Do I have to use external clock for ATmega ISP programming after changing fuse bits?
After programming an ATmega microcontroller via ISP (SPI) interface and changing the clock-related fuse bits, I'd like to reprogram it again. Will I have to connect it to an external clock now to do ...
-1
votes
0answers
38 views
Development on System-on-a-Chip [closed]
I would like to program integrated chips such as the CC2541 by Texas instruments or the nrf51822 and include the chip on a custom made PCB.
I am looking for the most convenient one in terms of ...
3
votes
1answer
146 views
Possible to re-program microcontroller over Bluetooth?
I am looking at making an embedded design featuring an ARM Cortex M3 MCU and bluetooth. I would like to be able to update its firmware over Bluetooth periodically.
Is this possible with the following ...
-6
votes
0answers
42 views
How to configure TI CC2540 2.4GHz Bluetooth Low Energy System-on-Chip Solution to send beacons?
I have a TI CC2540 chip and now I want to send beacons using this chip. I'm completely new to electronics and I do not understand where to start and how to proceed. How to configure the chip to send a ...
1
vote
1answer
69 views
Is there a way to avoid an infinite loop and reduce CPU power consumption when using PIC and timer0 interrupt?
I have made a simple program that runs on a P12F629 microcontroller, using MikroC.
I need ...
1
vote
3answers
161 views
Where do you find out how to program a specific microprocessor?
I have experience with AVRs, by programming them through the SPI port, but right now I'm looking at a Holtek HT46R22 and I can't find anything about how to program this Microprocessor. My question is ...
0
votes
1answer
38 views
using mbed with gps
I am trying to program an mbed micro controller to work with a GlobalSat EM 406 GPS receiver and have got it outputting long and lat to a host computer using the information on:
...
4
votes
2answers
528 views
ISR - to flag or not to flag?
From what I read on the internet we should respond to interrupts as quickly as possible, when programming microcontrollers; and that flags should be avoided because they tend to compound over time.
...
1
vote
2answers
91 views
Memory locations in AVR hex file
I am trying to understand the hex file generated by the AVR Studio. I wrote a code in assembly. The code is as follows:
...
1
vote
2answers
57 views
What are the implications of a ROMLESS device?
I was looking through the microcontrollers area of Digikey and I noticed a device that i'm interested in although there is the description of "ROMLESS" in the program memory type.
...
7
votes
4answers
2k views
How different are 8-bit microcontrollers from 32-bit microcontrollers when it comes to programming them
Right, so we have 8-bit, 16-bit and 32-bit microcontrollers in this world at the moment. All of them are often used. How different is it to program 8-bit and 16-bit micrcontrollers? I mean, does it ...
0
votes
2answers
534 views
Programming an ATMega328 with Arduino bootloader via a FTDI USB-serial adapter
I would like your advice relating to using the Arduino IDE and avrdude to program an ATmega328 which is preloaded with an Arduino bootloader. I am using a USB to TTL-serial breakout board based on an ...
0
votes
1answer
66 views
Programming an EPROM using 8085 kit
I need to program an EPROM/EEPROM with the code for an 8085. I do not have a programmer. I can't buy one. But I have access to an 8085 kit. Can I use it to program the EPROM/EEPROM via an interface? ...
0
votes
1answer
154 views
Tutorials on embedded programing using Zynq 7020 with ARM processor
Just as the question states. I have been having trouble being able to just test out the programming side of the ARM processor on the TE0720 board. I have been searching online for how to setup the ...
1
vote
1answer
96 views
Program LPC1343 thru USB bootloader with the right FILE format
I'm having a real hardtime programming my LPC1343 with the method mentioned in this question (Can an LPC1343 accept its initial program over USB?).
I am using a Linux machine and arm-none-eabi-gcc. I ...
4
votes
3answers
251 views
Why set PORTx before TRISx?
I was browsing through the example code that MikroE provides for PIC programming using MikroC, and they always set PORTx before setting TRISx. What is the reason for this?
Since TRIS just selects ...
4
votes
3answers
564 views
How to Debouce Six Buttons on One Analog Pin With Arduino
I'm using analog pin 5 on Arduino to detect presses from 6 push-buttons. On the picture top-right button is number 1 and then from right to left they go as 2, 3, 4, 5, 6. Program should print 0 when ...
2
votes
1answer
185 views
Arduino Starter Kit, Color Mixing Lamp Project 4
I just started looking into electronics and circuits. I purchased the Arduino Starter Kit to help get me started. I have a question regarding one of the 15 projects it comes with. Specifically with ...
-1
votes
1answer
100 views
PIC 18F252 config settings help
I need to blink a simple LED with PIC18F 252 but I could not figure out the config settings for doing so.
I read the datasheet looking for internal oscillator, but I could not find it. I don't want ...
-1
votes
2answers
174 views
How to program Atmel ATtiny88 (not 45 or 85)? [closed]
There are lots of tutorials for programming the ATtiny45 and 85 with a breadboard and Arduino, but how would I program the ATtiny88? It's an 8 bit AVR microcontroller, but it can not be mounted on a ...
3
votes
1answer
139 views
Should I define default register values in start up code?
It has come to my attention that some ARM programmers set some CPU registers with values that are the same default values of the register on microcontroller reset.
For example: the default value of ...
0
votes
1answer
103 views
A program to add 6 bytes of data and store sum and carry in 8085 instruction set
I have a question on 8085 instruction set.
A program to add 6 bytes of data stored in memory starting from 4500h. must use b register to save any carries and finally store the sum and carry at two ...
1
vote
3answers
275 views
1
vote
1answer
120 views
Control of electric actuators
I'm new to this forum and I am trying to find a solution to control three small electric linear actuators I have made for my rc controlled model aircraft, they have mini 6 volt geared brushed dc ...
0
votes
2answers
59 views
SPI Slave Flash programming with two masters question
I'm looking to make a system that can be upgraded by a customer in the field and I need to know some conceptual thing before I try implementing my current strategy.
Say I have a USB to SPI bridge, ...
1
vote
1answer
218 views
AT89c51RE2 replaced with AT89LP51RD2, ISP programming
have a question I can't seem to figure out the answer to. We have existing boards running off the AT89c51RE2 processor. Works great because it supports In-System-Programming. This means we can use ...
2
votes
3answers
199 views
1
vote
2answers
189 views
How to make Arduino Duemilanove Atmega 168 store instructions and act acording to them [closed]
I'm trying to make a small car with Arduino for kids. I have connected 2 DC motors at the end of chassis and one spinning wheel which is able to rotate for 360 degrees and L293NE IC with my Arduino ...
-1
votes
2answers
167 views
Can I program a MSP430553 IC using the TIVA C development board?
I have a few MSP430G2553 ICs. Can TIVA C board (EK-TM4C123GXL) used to program the ICs as I need to buy it for a online class I am about to take ????
If yes, please specify the method to be followed.
0
votes
2answers
143 views
Getting started with an LPC1313 Microcontroller [closed]
I recently purchased this microcontroller along with an FTDI TTL-232R-3V3 cable. I want to program a blinking lights hello world application onto the microcontroller. I was told that I might be able ...
1
vote
2answers
434 views
Programming a ATmega328P on a breadboard - programmer cannot connect
What I am trying to do is program the ATmega328P on a breadboard. I have followed the schematic by which the Duemilanove board was wired to no avail.
I have a SparkFun AVR Pocket Programmer that ...
1
vote
2answers
305 views
ISP circuit for AVR microcontrollers
So I was doing a bit of research on the AVR controllers and came across this schematic for programming the chips.
After doing research on the 74 LS 254, I realized that either this design is ...
3
votes
1answer
420 views
Problem Reading PIC18F4550 Input
Hi I am facing some problem with Reading the input from a PIC18f4550 , for a simple arrangement where when a switch on (switch = 1), few led should glow., and on releasing the switch the led should go ...
0
votes
1answer
100 views
Programming CC430F5137 using another microcontroller
I have a CC430F5137 and the board schematic all ready for my application to that requires capturing data over bluetooth. I wish to program the CC430F5137 using another platform except the conventional ...
3
votes
3answers
375 views
Should I refactor my C code to optimise it for an embedded microcontroller?
Below is some code implemented on an 8 bit microcontroller.
The following comment was posted to another question:
As your code doesn't use the i variable, why ...
3
votes
3answers
132 views
Using a microcontroller to program another microcontroller (on a wireless board)
I am working on a project in which I want to include the functionality of reprogramming the main microcontroller via wireless transmission.
First, I have figured there needs to be a dedicated ...
1
vote
1answer
579 views
How to set all flags in 8085?
My Microprocessor teacher of 8085 gave an assignment to set all flags ! I have written this little program to set all except Sign, Please help me out
...
1
vote
2answers
185 views
If one has used PIC uC, how different is it to migrate to using a different uC like say Arduino or ARM?
There seem to be quite many vendors making uC and some uC are more popular than others say for example Arduino and PIC because of their low cost and abundant features and ARM because of its high ...
2
votes
2answers
2k views
How different is the Arduino language than Atmel Studio language? [closed]
I see that on the official Arduino website, the reference page contains the functions and vales you would use specified to the Arduino compiler.
http://arduino.cc/en/Reference/HomePage
What would ...
0
votes
1answer
456 views
Configuration Settings of 18F4550 in a header file
Recently I was wondering if is there any option to move my Configuration bits to a header file?.
right now I'm using the 18f4550 microcontroller,with mplabx IDE,and my developed code entirely is in ...
1
vote
1answer
118 views
LTC2498 Temperature Sensor Chip Code via SPI
I would be very grateful for your tips for my present problem definition:
I have a microcontroller ATmega128RFA1 with integrated Zigbee with UART-USB(TTL Converter) attached to the PC.
From the ...
1
vote
2answers
183 views
Can I program a QUAD SPI Chip with a standard SPI microcontroller?
I have to program a MX25L12835 Quad SPI chip. This is a Quad SPI serial flash. Is it possible to program this using an arduino? Can this be used as a simple 1 channel SPI or can quad SPI interface ...
0
votes
0answers
135 views
How do I program a serial EEPROM IC using a raspberry Pi?
I am trying to program the 25L12835F Serial EEPROM with the firmware of the Pineapple WiFi router. I have the u-boot.bin file from Alfa. I have tried a programmer from eBay, but the software is unable ...
1
vote
0answers
113 views
Electronics Circuits Simulator Framework?
Is there a framework for circuits simulation that I can use through easy APIs? and return me an array of results for each component?
I want to build an android based simulator, so a java framework ...
1
vote
2answers
358 views
High Voltage input and output microcontroller
I am new to this, but I am looking to regulate a few ballast controlled fluorescent lamps with a micro-controller. Everything I look at has a low operating voltage and below 10 volt input/output ...
4
votes
4answers
1k views
Delay function in ARM programming
I have just started programming on ARM, I had some experience on AVR but not that much. The question is probably too trivial but the material about ARM is too little on the net... sorry anyways.
I ...
1
vote
0answers
157 views
How to debug error of “unknown type name __progmem__”?
I'm using atmel studio 6.1 with a code containing
but on compilation conpiler gives error as mentioned above and after googling error,I found that this variable progmem has been depriciated,but no ...
0
votes
1answer
199 views
How do I determine what microcontroller is the right one for my project? [closed]
I have just started developing a tiny GPS trackingdevice that (eventually) will be able to log positioning-data on demand - via SMS commands and/or via a smartphone-application.
The device should be ...
2
votes
1answer
189 views
_delay_ms not working with ATmega 16/32
I had purchased an ATMEGA 16 microcontroller and chaged its fuse bits settings and used internal caliberated RC clock with 1000000.
Changes done in make file and F_CPU. But it do nothing.
Programme ...
1
vote
1answer
102 views
Clocks setup when programming Atmel via ISP?
When programming an Atmel microchip over SPI (ISP), what external clocking do I have to provide to programee? Does it have to match programmer's internal clock frequency, or can be totally different ...
