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Old 24th December 2011, 09:56 AM   #651
aditya is offline aditya  India
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can i get the bass, mid , treb, and volume up down code..
using one encoder for up down and one button as set/enter
with out power on button. i would love it,
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Old 24th December 2011, 09:58 AM   #652
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Merry merry Christmas and happy happy and supper prosperous peace full new year
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Old 24th December 2011, 08:29 PM   #653
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Quote:
Originally Posted by aditya View Post
can i get the bass, mid , treb, and volume up down code..
using one encoder for up down and one button as set/enter
with out power on button. i would love it,
about 7449 it dont have Mid-range tone thats TDA7439

but code is allmost the same ONLY BASS/Mid-range address is diffrent !!!!
see datasheet for both
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Old 24th December 2011, 09:30 PM   #654
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Quote:
Originally Posted by FarmTech View Post
about 7449 it dont have Mid-range tone thats TDA7439

but code is allmost the same ONLY BASS/Mid-range address is diffrent !!!!
see datasheet for both
Forgot to write that TDA7449 is 2 INPUT TDA7439 is 4 input
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Old 25th December 2011, 05:50 PM   #655
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i saw the project in elektor for TDA7449 but the LCD used in there is not available here. adn if i order it than its quite expensive for me. could you do a code for TDA7439 based on 8515 or atmega 8,
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Old 25th December 2011, 05:59 PM   #656
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Quote:
Originally Posted by aditya View Post
i saw the project in elektor for TDA7449 but the LCD used in there is not available here. adn if i order it than its quite expensive for me. could you do a code for TDA7439 based on 8515 or atmega 8,
Hi Happy Hollyday .

Yes 8515 and M8 can be used for this
Iam working on code for 7439 for the lcd / encoder
hope to finish soon

I wait for the TDA7439 chip so I can test the code about 1 week then I have it

Last edited by FarmTech; 25th December 2011 at 06:01 PM.
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Old 26th December 2011, 02:33 AM   #657
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cool, happy holidays, you can use proteus isis ( labcenter ) to check code squence coming on i2c port of the ic, and also the data thats coming on the LCD, and also test your codes
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Old 26th December 2011, 03:31 AM   #658
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Quote:
Originally Posted by aditya View Post
cool, happy holidays, you can use proteus isis ( labcenter ) to check code squence coming on i2c port of the ic, and also the data thats coming on the LCD, and also test your codes
HI,
Yes I know proteus well

So we say M8 and 20x2 lcd or (16x2) portb
Intern clock 8Mhz (no crystal)
SDA/SCL TDA7439 portc 4/5
encoder portd 0-3 (maybe with push button)
Button menu/Select portd.4
Power On led portb.6
so you have change to make pcb

Click the image to open in full size.
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Old 26th December 2011, 04:13 AM   #659
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Here's one that uses an Analog Devices AD5206 RDAC and an Atmel AT2313 for stereo or AT4313 for home theater. The firmware for the home theater processor wouldn't fit into the 2313, but the 4313 is pin compatible, so they share the same schematic. The RDAC has linear pots, but a true logarithmic sequence is sent to it, providing an accurate log scale.

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Old 26th December 2011, 07:07 AM   #660
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Cool you use isis supper well you have a i2c debugger in the left column
Under a icon that looks like meters.
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