ATMEGA with 2 UARTS

Started by Cleber Dantas in AVRclub11 years ago 6 replies

Hello! Greetings from Brazil! Can you recommend an ATMEGA with 2 UARTS? The reason that we will use UART is simple, its more reliable than...

Hello! Greetings from Brazil! Can you recommend an ATMEGA with 2 UARTS? The reason that we will use UART is simple, its more reliable than software serial. I don't know if everybody agree with that. Thanks! Cleber ------------------------------------


Atmega 8535 !

Started by Ahmad El-Saied in AVRclub15 years ago 3 replies

Hi all, i am new to the microcontrollers world ... & i have already started my graduation prooject .. i searched alot for a Serial ...

Hi all, i am new to the microcontrollers world ... & i have already started my graduation prooject .. i searched alot for a Serial Programmer for Atmega 8535 Microcontroller ... all what i searched was unuseful .... Can any one help me thanks in Advance Ahmad El-Saied


wireless transmission using RF module interfaced to ATMEGA 8

Started by maheshnmys in AVRclub9 years ago 4 replies

We need to transmit digital data over a short range( 30 feet ) at a data rate of 8K bits/sec . please suggest me a RF module satisfying these...

We need to transmit digital data over a short range( 30 feet ) at a data rate of 8K bits/sec . please suggest me a RF module satisfying these conditions and also can be interfaced to ATMEGA 8 easily ------------------------------------


Help on RTC for Atmega 8535

Started by Bhaskar Datar in AVRclub15 years ago

Hi to all, I m working on ATmega 8535 and using RTC with Timer2 in asynchronous mode.I had connected the 32.768kHz.But it's not working...

Hi to all, I m working on ATmega 8535 and using RTC with Timer2 in asynchronous mode.I had connected the 32.768kHz.But it's not working properly.it's not going in interrupt routine.Pls provide help on this.or just forward any sample programs on RTC in C. ..........Thanx.


Re: Intro books covering ATMega

Started by tim...@teccs.biz in AVRclub10 years ago

Hi Lee, I just emailed you via facebook. I was finding this link for a book that might help...

Hi Lee, I just emailed you via facebook. I was finding this link for a book that might help you: http://www.wrighthobbies.net/download/bascom-avr-theory.pdf > Hi. I'm teaching an intro class to embedded processor applications. > The first part of the class used the Parallax Basic stamp, which is > based on the PIC. I'm planning on using one of the ATMega's (8535, > 16, or 32. Wha


forth for ATmega

Started by Genie Murasaki in AVRclub15 years ago

Hi clubbers, I'll let you know that there is a forth written in assembler for ATmega series (including AT90CAN128) - avrforth. It has...

Hi clubbers, I'll let you know that there is a forth written in assembler for ATmega series (including AT90CAN128) - avrforth. It has subroutine threaded structure for optimizing speed and it runs pretty fast on my STK300. Try out http://krue.net/ if interested. Regards, genie murasaki


Atmega and RTL8019as ethernetcontroller...

Started by Ben Zijlstra in AVRclub15 years ago

Hi Have started a small tutorial connecting a Atmega to a RTL8019as ethernet controller. http://members.home.nl/bzijlstra ...

Hi Have started a small tutorial connecting a Atmega to a RTL8019as ethernet controller. http://members.home.nl/bzijlstra Have fun!! Ben Zijlstra


ATMega 64 troubles

Started by Mario Alberto Melo in AVRclub16 years ago

I'm having some problems programming ATMega 64 using CodeVision. When i click on "Erase Chip" all works right, but when i try to program...

I'm having some problems programming ATMega 64 using CodeVision. When i click on "Erase Chip" all works right, but when i try to program flash an error happens, but if I erase chip, turn off power supply, turn it on again and now program flash i'm able to program it. It happened to me with few ATMegas 64 in different pcb membedded designs, but only


Atmega 128 USART TXD info

Started by al_martinez in AVRclub9 years ago 4 replies

I have an Atmega 128 and read the manual. On page 180 the information given does not include whether the transmission signal sent out of the TXD...

I have an Atmega 128 and read the manual. On page 180 the information given does not include whether the transmission signal sent out of the TXD pin (3) is inverted or non_inverted. I know the default transmission settings are 8N1 9600 baud, but I need to verify if it is inverted or non_inverted. Also, If I use the chip for only transmission, do I need to ground the receive RXD pin (2) or do...


Re: ask about exp conected atmega 8535 with rtc

Started by Eric in AVRclub11 years ago

Sorry REAL TIME CLOCK which one are you using? > From Eric ----- Original Message ----- From: Eric To: Sent: Saturday, June...

Sorry REAL TIME CLOCK which one are you using? > From Eric ----- Original Message ----- From: Eric To: Sent: Saturday, June 27, 2009 4:27 AM Subject: Re: ask about exp conected atmega 8535 with rtc PLEASE NEVER SEND PLAIN BORING HTML EMAIL AGAIN OR MESSGAES JUST GET DELETED THEY ARE ABOUT 2.5 THE SIZE OF STANDARD PLAIN TEXT EMAIL, THEY H


Re: ask about exp conected atmega 8535 with rtc

Started by Eric in AVRclub11 years ago 1 reply

PLEASE NEVER SEND PLAIN BORING HTML EMAIL AGAIN OR MESSGAES JUST GET DELETED THEY ARE ABOUT 2.5 THE SIZE OF STANDARD PLAIN TEXT EMAIL, THEY HOG...

PLEASE NEVER SEND PLAIN BORING HTML EMAIL AGAIN OR MESSGAES JUST GET DELETED THEY ARE ABOUT 2.5 THE SIZE OF STANDARD PLAIN TEXT EMAIL, THEY HOG INTERNET BAND WIDTH AND WASTE SPACE ON MY HARD DRIVE what is "rtc" > From Eric ----- Original Message ----- From: Ono Sdr To: e...@woosh.co.nz Sent: Saturday, June 27, 2009 1:21 AM Subject: ask about exp conected atmega 8535 with rtc can you


4X DAC Design for Multiflex using Atmega16 and AD7528 DAC chip

Started by huiyangdoh in AVRclub12 years ago 1 reply

I am trying to develop DAC circuitry for Atmega 16 since Atmega16 doesn't have in-built feature of DAC. The circuitry design will be 4X DAC...

I am trying to develop DAC circuitry for Atmega 16 since Atmega16 doesn't have in-built feature of DAC. The circuitry design will be 4X DAC design using AD7528 DAC Chips To my understanding, PortC0-1 (SDA/SCL) of Atmega 16 will be used to drive the DAC circuit which will output variable voltage 0DVc - 10DVc at fix current 25mA using Op Amp. I am not trying to ask anyone to do homework ...


ATMega Group.

Started by Arif Deshmukh in AVRclub15 years ago 2 replies

Hello, There is group for ATmega microcontroller which I would like to share. ...

Hello, There is group for ATmega microcontroller which I would like to share. http://groups.yahoo.com/group/ATMega _Microcontroller Bye


hello

Started by sellitas in AVRclub12 years ago 4 replies

hello i am new user and i need help on c programming code using Timer/Counter to switch led on and off using avr and i'm using atmega 644...

hello i am new user and i need help on c programming code using Timer/Counter to switch led on and off using avr and i'm using atmega 644 microcontroller ------------------------------------


ATMega 128 programming

Started by cheshmak1972 in AVRclub15 years ago 2 replies

Hi I can not programming ATMega128 my programmer maked by me and is on STK200 type Please help me

Hi I can not programming ATMega128 my programmer maked by me and is on STK200 type Please help me


Urgent

Started by atul_waghmare14 in AVRclub15 years ago 2 replies

Hello sir, I m using Atmega8535..... In that my uc coming out of while(1)Or for(;;)continously. I want to know what is problem. If u...

Hello sir, I m using Atmega8535..... In that my uc coming out of while(1)Or for(;;)continously. I want to know what is problem. If u have any c code for RTC in ATmega 8535 then plz give to me .... I m loking for it.......... Hope so u will help me out.. thanks --- In avrclub@avrc..., "


UART in ATMEGA 8535

Started by taufiq_tqr in AVRclub10 years ago 1 reply

Dear all friend, Anybody help me to explain to me and give me a example how to communicate serial port between ATMEGA8535 and Personal Computer...

Dear all friend, Anybody help me to explain to me and give me a example how to communicate serial port between ATMEGA8535 and Personal Computer (PC). Pls the code use C language. Thanks all, I'm wait the answer ------------------------------------


ATmega's ADC

Started by josecarlosfuentes in AVRclub16 years ago 2 replies

If I use the internal 2.56V reference, how the AREF pin should be connected? Can connect a capacitor between AREF and GND? Thanks in...

If I use the internal 2.56V reference, how the AREF pin should be connected? Can connect a capacitor between AREF and GND? Thanks in advance. Jose


Triggered Inputs?

Started by Rompf Tobias ZFS MKK in AVRclub16 years ago 6 replies

Hey Folks, are the Ports of the Atmega 128 triggered in any way? (sure they are, but how good) Or do you consider an external...

Hey Folks, are the Ports of the Atmega 128 triggered in any way? (sure they are, but how good) Or do you consider an external Trigger? I wanna be able to use input Voltages from 5 to 30 V. Thanx in advance


AVR MEGA 64 / 128 programer

Started by Diego in AVRclub10 years ago 2 replies

Hello, i am new in this world and i am looking schematics of atmega 64/128 programmer USB or serial, but USB will be better. And the software...

Hello, i am new in this world and i am looking schematics of atmega 64/128 programmer USB or serial, but USB will be better. And the software that i need to use it. Thank you very much to people that help me ------------------------------------