hi all gurus, I have a doubt about how one chooses a microcontroller for a particular project. Say i am designing a embedded...

hi all gurus, I have a doubt about how one chooses a microcontroller for a particular project. Say i am designing a embedded wireless system. i have my specs of the protocol which works at a particular rate. say it is a low data rate network protocol. Say i implement the code for the stack. Now i need to decide on a microcontroller for the project. How do i look into the ti...

Hello, I'm in need of a small microcontroller that has ADC and DAC capabilities and PWM also but not much of anything else.... most...

Hello, I'm in need of a small microcontroller that has ADC and DAC capabilities and PWM also but not much of anything else.... most the microcontroller's I've found while trying to search for these criteria are a little overkill...... an 8 bit or 16 bit would probally be fine, low power would be great but ADC and DAC are the main things I'm looking for... I've thought about a PIC but I've ...

I was wondering how people deal with the following problem. When a microcontroller is put in sleep mode many registers and RAM are in an...

I was wondering how people deal with the following problem. When a microcontroller is put in sleep mode many registers and RAM are in an initialized state. In this condition the microcontroller can be affected by ESD, EMI which means the initialization can be corrupted -> there is a risk it does not wake up anymore. Of course there are watchdogs, but due to power constraints this can no

A newbie here. After reading a small portion of the discussion, this question comes up in my head, is the cost of microcontroller a very...

A newbie here. After reading a small portion of the discussion, this question comes up in my head, is the cost of microcontroller a very important issue in terms of picking the right one? How much a microcontroller CAN contribute to a whole product? Or is it the functionality, speed, power consumption and development toolchain userfriendly-ness more important in the decision? I am thinking ...

Texas Instruments has introduced a new C2000 32-bit microcontroller...

Texas Instruments has introduced a new C2000 32-bit microcontroller family: http://www.microcontroller.com/news/Texas_Instruments_Piccolo.asp Codenamed Piccolo, it has the performance of a DSP with the ease-of-use of a Microcontroller architecture. It also has an FPU - not bad! The news article shows a C2000 roadmap Bill Giovino Executive Editor http://Microcontroller.com

Hello, I do not have a idea, where a RTOS on a singlechip microcontroller is good for. I know, that it is good for making two (or more)...

Hello, I do not have a idea, where a RTOS on a singlechip microcontroller is good for. I know, that it is good for making two (or more) processes parallel but cannot imagine, how this works. O.K, a simple example to make it clear. There is microcontroller and two processes shall run on it. The first one ANDs two intput-pins and gives the result to an output-pin. The second one ORs two othe...

Hi there, I'v got the following problem: I've got a C164CI microcontroller (Infineon) and I've written a prog to send Hex-Files to it. When I...

Hi there, I'v got the following problem: I've got a C164CI microcontroller (Infineon) and I've written a prog to send Hex-Files to it. When I work with the integrated OS of the microcontroller I always have to add '0xFF's to every record that has less than 32 byte. Now I'd like to write my own bootloader for the microcontroller and my question is: Do I always have to fill my hex records ...

Hi all, I have a question pertaining to an Atmel microcontroller. I have a AT89C2051 flash microcontroller. I just wanted to verify that once...

Hi all, I have a question pertaining to an Atmel microcontroller. I have a AT89C2051 flash microcontroller. I just wanted to verify that once I program the chip with a universal programmer I have, I can turn off all power to the chip without losing the data right? So the next time I apply power to the chip, it will still function as programmed right. thank you. Regards, Phil

Hi, I am designing a 8051 microcontroller system. It has ports for interfacing. How can I control a 230V 100W Electric Bulb using 8051...

Hi, I am designing a 8051 microcontroller system. It has ports for interfacing. How can I control a 230V 100W Electric Bulb using 8051 microcontroller ports? In essence, how do we control high voltage applications using 8051 microcontroller? Sincerely, Srinivas Nayak

Hi, I want to select a 8 bit microcontroller which can be run under 3V and with 12MHz clock. Any choice?

Hi, I want to select a 8 bit microcontroller which can be run under 3V and with 12MHz clock. Any choice?

Hi Group, We are a group of four B.E students studying in M.h.S.S. COE, Mumbai, India. We writing to you to seek some help and guidance. Since...

Hi Group, We are a group of four B.E students studying in M.h.S.S. COE, Mumbai, India. We writing to you to seek some help and guidance. Since this is our first microcontroller based project, we are unaware about the practicalities and methodologies that go into it. In our project, we have decided to use the following: AT89C52/AT89S52: MICROCONTROLLER DS1307: RTC MAX232/MAX485: LEVEL CONV...

Is it good to learn or to use.What general factor we should consider if I we want to use it? I'm just newbie in microcontroller and have a very...

Is it good to learn or to use.What general factor we should consider if I we want to use it? I'm just newbie in microcontroller and have a very great interesting in it.

Hi all, Is it possible to access the ram address / file of a pc from a microcontroller (8051) ? Thanks in advance , Krishna.

Hi all, Is it possible to access the ram address / file of a pc from a microcontroller (8051) ? Thanks in advance , Krishna.

Hi, I have thought of a free software project in my mind. I need your opinion on it because currently I am familiar only with the...

Hi, I have thought of a free software project in my mind. I need your opinion on it because currently I am familiar only with the 8051 microcontroller. As you would have alreay guessed by now, I am planning to create a Universal 8-bit Microcontroller simulator for the linux platform. Yes, there are such software already in the market, but AFIK they are all proprietary products and are no...

Assume that we have a group of computers. Some of them are PCs and others are small microcontroller boards of different types. Some of the PCs...

Assume that we have a group of computers. Some of them are PCs and others are small microcontroller boards of different types. Some of the PCs running Linux and others running Windows, vxWorks or QNX. Microcontroller boards have no operating system but some embedded program that we are going to provide. Our mission is "some how" synchronize their time as accurate as possible. What we are g...

i am doing my final term project with this microcontroller , which is to interface this microcontroller with ethernet to take information from...

i am doing my final term project with this microcontroller , which is to interface this microcontroller with ethernet to take information from the server to authenticate the user depending upon the information entered by the user ..... i want to know what all networking elements will be required to to interface this microcontroller with ethernet ... any information given can be very vital ...

Hello everyone, I am facing the following situation: I have a microcontroller (e.g. Atmel ATmega 128 or TI MSP430) connected via SPI to a...

Hello everyone, I am facing the following situation: I have a microcontroller (e.g. Atmel ATmega 128 or TI MSP430) connected via SPI to a flash memory chip (e.g. Atmel AT45DB014B or ST M25P80). I'd very much like to enable a second microcontroller to access the flash memory. The central question in this regard is: Can I add this second microcontroller to the bus without changing the soft...

http://microcontroller.com/news/microchip_pic24.asp Up to 40MIPS performance, up to 256Kbytes Flash, a 23-bit address bus, and Microchip's...

http://microcontroller.com/news/microchip_pic24.asp Up to 40MIPS performance, up to 256Kbytes Flash, a 23-bit address bus, and Microchip's benchmarks show that it's faster than the Infineon C16X. A parts selection matrix is included. - Bill Giovino Executive Editor http://Microcontroller.com

I am starting an embedded control project. This is so simple that probably any microcontroller will do, but I will first ask the experts which...

I am starting an embedded control project. This is so simple that probably any microcontroller will do, but I will first ask the experts which would really be the best. Here is the basic spec: Interface: A few switches Drive a relay to control one 120-220VAC 500W device Microcontroller: Real time timer Battery backup or nonvolatile memory for power failure Small...

Hi, i'm doing a final year project with tittle remote process control control using a mobile phone. but i cant communicate the microcontroller...

Hi, i'm doing a final year project with tittle remote process control control using a mobile phone. but i cant communicate the microcontroller 8051 with SIEMENC C35 using a data cable. How to using the AT Command? It's only for C language or can use in microcontroller assemble language?