Volatile and interrupts
Is it mandatory that a variable that i use in interrupt to copy microcontroller buffer data should be of type volatile? Because without it also my code seems to be working.
View ArticleChallenging task
I want to take up a very challenging task of identifying at which point of main loop execution is the system getting interrupted. I want to know the exact point. As of now i want to go with single...
View ArticleUnable to read ADC Value
Hello All! I am trying to read ADCValue in my motorized slide pot.So,I have used a break point before the variable which I want to read the ADCValue.But,unfortunately no ADC value is showing in the...
View ArticleLooking to get into Atmel programming, few questions...
Hi and thanks for the nice forums! Old PLC/Robot guy here looking to play with some micros.. I downloaded and installed the Atmel Studio software last night and now want to get into MCU development, an...
View ArticleI2C ESP8266 Arduino Bad Reading
I have a NodeMCU, which I program with the Arduino IDE. I have connected a VOC sensor to pins D1, D2, which are the SLC/SDA pins for NodeMCU. They have pull-up resistor at 4,3kohm to 3.3V. First I used...
View Articledoes 8051 support for RTOS ?
Hello I have done some project with P89v51rd2 microcontroller. I am familiar with Keil compiler. I just want to develop RTOS. Is it possible to implement RTOS in P89V51RD2 controller(8051)? I did...
View ArticleLabview project (for fun) - help!
Hi I thought I would reach myself some labview (as I have never played with it) and I thought I would do a project (I haven't seen one yet like this) which is a sallen and key calculator similar to the...
View ArticleLin communication
I read a statement in LIN communication saying by the nature of lin bus whatever the node is transmitting it also receives it. I am bit confused about this. What does it mean? Will i get both tx and rx...
View ArticleHow to make 3G sim compatible to 2G modem ?
How to make 3G sim compatible to 2G modem ? including the embedded C code
View Articlehow to fix LCD problem
i am working on the project gesture vocalizer for deaf & dumb people. itx having a problem that the text is not getting displayed on the lcd. what to do now?
View ArticleTurning Arduino Prototype into final product
Hi I am working with arduino pro mini and bluetooth (HC-05) to turn led on/off using mobile phone. I am done with the first protoype. I want to reduce the size of whole circuit. Any advice on using...
View ArticleMicrocontroller ClockCycle speed thing question
i found this website that directly converts 1MHz is as good as 1 Cycles Per Micro Second http://www.kylesconverter.com/frequency/megahertz-to-cycles-per-microsecond so I became curious.... is this...
View ArticleSimulate the software before flashing
I want to simulate my software before actually flashing into the hardware. I am looking into microchip controllers. External tools also ok for me. I want to test my logic since I am finding lots of...
View ArticleSIM project
Hello. I would like to send commands to hardware by use of a SIM card. for starters, as an example, activate a LED, and receive a button being pressed. are there examples of such projects ? Thank you,...
View ArticleSerial data decoder using Arduino Uno
I've been using ATmega328. I need to serially recieve data of upto 16 bits (along with latch pulse and clock pulse) and based on this data, the microcontroller needs to give a specific output. For...
View ArticleADC program template
I have configured the adc program in the following manner automatic conversion and interrupt based and i find that the interrupt is happening very frequently and i do not want at that rate. so i...
View ArticleVPOKE VPEEK
Hi, I have a general questions about VPOKE and VPEEK of a register. After POKE-ing a register with a value, do you have to subsequently PEEK the register for the POKE to work and effectively write the...
View ArticleGeneral Purpose Programmer
My Chip Master 3000 appears to have died. I am looking for a general purpose programmer that can run M27C64A EPROMS, and P87C51SBPN OTP/ROM microcontrollers. My answer to most of your questions is 'I...
View ArticlePro-Face LM4201 TADAC - I/O wiring
Hi. I have just got a Pro-Face LM4201 TADAC PLC from my employer, and has been asked to learn how to use it. After getting it to upload projects correctly, I have learned the basics of ladder...
View ArticleGeneral question about EEPROM Programmer
Hi people, nice to write here for the first time, i have a general question about programmers, and how you do when browsing in the device list for the chip id and it doesn´t show in such list? under...
View Article
