Basic Level     Skills: Not specified    
Author

Description

Project tested and working perfectly

Yet another project from our Italian friend

Bascom-Avr Compiler

ATMEGA48 DDS Audio Function Generator


Features
Frequency range : 1Hz - 20KHz useful to 100KHz
Resolution : 1Hz
Waveform : Sine, Square, Triangle, Sawtooth
Output level : Adjustable 0 - 5V.p.p.
Square wave open drain output (TTL compatible)
Battery powered

I don't recommend this project for anyone who is NEW to electronics.

--------------------------------
ATMEGA48 Fuses configuration:
Spien ON ,Rstdisab OFF, Esave OFF, Ckout OFF, Wdton OFF, Ckdiv OFF,
SelfprgEn OFF, DwEn OFF, Bodlevel = 111 , Cksel = 0111 , Sut = 11
--------------------------------

Gioppy


  Filesize

322.03 kB

  Downloads

49523

  Rating
 

Comments

pdi33
12 Jun 2008: 03:57 AM
nice one..... :-)
  
Archie Lamb
07 Sep 2008: 08:47 AM
My compliments to Gioppy! GREAT job! I built one of these and it worked the first time! It now has become the standard audio generator on my workbench. I ran quite a few tests on it. It produces a high quality waveform and the frequency is right on by my counter. I made quite a few hardware changes to accommodate the parts I had on hand but the firmware is the heart of the project and it works flawlessly. hint to all: buy a bunch of 10K 1% SMT805 chip resistors. They make a small accurate R2R ladder.

Thank you Gioppy!
(Now how about a audio to HF generator using an AD9834?)
  
GioppY
10 Sep 2008: 16:06 PM
Glad to hear you are pleased with my project. Yes, i agree SMT805 is a good choice.
AD9834 ? I do not have experience with high frequency, and get good performances is quite difficult.
  
Saadatfar
13 Jan 2009: 12:11 PM
Thanks
  
venkatesh s k
13 Apr 2009: 04:07 AM
full deatils turbo charger function i will deatils
send email id; venkatesh_sk@hot mail.com
  
Gito
24 Dec 2010: 11:21 AM
Hi Gioppy,

Can you tell us how to set the config bits in PONYPROG ?

Thanks a lot.

Gito
  
ajay_bhargav
26 Dec 2010: 16:39 PM
check AVR forum for help on fuse bits.
  
budi ,herdiawan
27 Aug 2012: 03:17 AM
help schematic
  
jhhhhhon
19 Nov 2013: 04:47 AM
hi
i simulation this project in proteus
and generate 1000hz sine wave but output not 1000hz and like 1hz or 100hz
why?
  
ajay_bhargav
20 Nov 2013: 05:16 AM
@jhhhhhon, use forum for help. Post your proteus file.
  
(Required; Min length 5)
(Required; will not be displayed)

Downloads

Comments

nnannos
Fri Apr 18 2014, 01:23 PM
venkyrsv
Fri Apr 18 2014, 12:10 PM
Suilied
Fri Apr 18 2014, 10:44 AM
RaviKantSharma
Fri Apr 18 2014, 04:55 AM
sohil99
Fri Apr 18 2014, 03:09 AM
kanakiyajay
Fri Apr 18 2014, 02:00 AM
bradstormer
Thu Apr 17 2014, 05:32 PM
jasmeet_singh
Thu Apr 17 2014, 10:19 AM

Conversation

ExperimenterUK
Thu Apr 17 2014, 01:23 PM
@mba Great .. please do.
Thu Apr 17 2014, 12:27 AM
mba'
like the forum and wish to participate
ExperimenterUK
Wed Apr 16 2014, 04:45 PM
@viniciusheidrun..you should read my comment just before your post
viniciusheidrun
Wed Apr 16 2014, 01:43 PM
I'm doing a drive system with SIM900D modem and microcontroller AT89S52 via sms. I'm having trouble can not generate the. Hex to send to the microcontroller, whenever I compile the error, I'm using MCU 8051 IDE, what should I do so that my system receive sms and perform my task?
ExperimenterUK
Mon Apr 14 2014, 01:00 PM
@Haranadh,bipin chandra etc. Create threads for your questions.
Sun Apr 13 2014, 04:05 AM
Haranadh
we bought HC 06 Bluetooth modem instead of Module ,Can any one help me of using it as bluetooth module since i am doing this project?
Sun Apr 13 2014, 03:58 AM
Haranadh
Hi,Actually we bought Bluetooth modem instead of Bluetooth Module
ajay_bhargav
Sat Apr 12 2014, 02:55 PM
Please use forum if you want to ask a question.
Sat Apr 12 2014, 01:06 PM
Dpk
Hi Ahana,I can Help you on this
Sat Apr 12 2014, 03:51 AM
bipin chandra
can anybody help me. we are making a project to control the position of dc motor. so there we need to interface lcd screen and the 4X3 memberane keypad and a dc motor driver chip. can anybody please give me the complete circuit diagram connection of these components with the 8051.and alse help in the programming. my email id is bipin.chandra666@gmail.com
  Choose Skin