Need help ISD4002 - Electronic Circuits Projects Diagrams Free

zeeshan1978 · 26th August 2007, 02:50 PM

Hi friends,

This is the first time i am writting here for your support and help about Chipcorder ISD4002.

I am making a project where i need to playback some recorded messages using ISD4002 IC.

I am using ATMEGA8 Microcontroller and connected the ISD4002 with the Microcontroller. The Play stop and Record commands are working fine and it is also reading the current pointer address too.

But when i record something it does not record and only play blank sound and only record blank.

Could you please provide me how icould cnnect my PC to input Wav file directly into ISD or using Microcontroller or what is the shematic to use Microphone.

regards,
Shan

leejongfan · 23rd September 2008, 02:06 AM

Hi,
I bought one and tried to run it, but still cannot work
Worse, actually i dont know how to debug it
Following is my code in Mikro C for recording

Code:

void main()
{
     ADCON1=0x06;  //RA5 Digital I/O
     TRISA=0x20;   //!RA5=SS: output for Chip Select
     TRISC=0x10;   //RC5:output SDO
                   //RC4: Input SDI
                   //RC3:output SCK
     Spi_Init();
     PORTA.F5=0; //!SS=0 chip enabled

     Spi_Write(0x20);   // Power up
     Spi_Write(0x00);
     Delay_ms(25);      //Tpud

     Spi_Write(0x20);   //Power  up
     Spi_Write(0x00);
     Delay_ms(50);      //2 x Tpud
     
     Spi_Write(0xB0);   //SETREC from location 0x00
     Spi_Write(0x00);
     
     Delay_ms(10000);   //delay 10s for recording
     
     Spi_Write(0x30);   //STOP
     Spi_Write(0x00);
     
     Delay_ms(50);      //Tstop;
}

http://s111.photobucket.com/albums/n...nt=isd4002.jpg

This is not my first time doing PIC and C. I have basic background using C for PIC16f877 (just some basic stuffs like keypad, LCD...)
The mikro C has built-in functions for SPI.
Actually, there is one thing I confused:
pin RA5/!SS/AN4 is used to select ISD4002--> it should be an digital output pin. But in datasheet, section9.1, it says that we have to set TRISA<5> which means RA5/!SS/AN4 will be a digital input.

zeeshan1978 · 24th September 2008, 02:58 PM

Hello friend,

I think it is very long time i find finally how to work with the ISD4002. I am using BASCOM and it is working fine with me and i used in my project perfectly. If you need any help with BASCOM just write me back.

Regards,
Shan

leejongfan · 24th September 2008, 03:12 PM

Hi Shan,

Thanks a lot.
Could you please send me any materials of your project you keep. Although our projects are not very similar but I believe I can learn something from you
Thanks

Pommie · 24th September 2008, 03:37 PM

Quote:

Originally Posted by leejongfan

Actually, there is one thing I confused:
pin RA5/!SS/AN4 is used to select ISD4002--> it should be an digital output pin. But in datasheet, section9.1, it says that we have to set TRISA<5> which means RA5/!SS/AN4 will be a digital input.

The RA5 pin should only be an input when the Pic is a slave, in this application the Pic is the master and so should control the slave select pin and RA5 should be an output.

Mike.

leejongfan · 24th September 2008, 04:34 PM

Quote:

Originally Posted by Pommie

The RA5 pin should only be an input when the Pic is a slave, in this application the Pic is the master and so should control the slave select pin and RA5 should be an output.

Mike.

I've just changed. Still cannot work!
At least I think I should have something

**3v0** · 24th September 2008, 04:38 PM

leejongfan,

I asked a few simple background questions that you did not answer.
How are we supposed to help, we can not read your mind.
Why should we help when you are so disrespectful!

Not angry just tired..

leejongfan · 24th September 2008, 04:48 PM

Quote:

* What is your background? Do you know C or understand the PIC you are using?

I have basic background in programming C for PIC such as LCD, Keypad, UART...

Quote:

* Is this your first micro contoller project?

Yes, it's my first project but not my project includes many small features

Quote:

* Do you have a debugger (ICD2 or PICkit2) that will allow you to step through the code. What is your programming setup?

I don't think I have such a thing. I use Mikro C to program and compile source code to .hex file, then use Winpic800 as Programmer

Quote:

* Can you verify that the SPI interface between the uC and isd4002 is working?

No

Quote:

* You will need to post all the code including the SPI code.

I used the built-in functions in Mikro C for SPI

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

26th August 2007, 02:50 PM	(permalink)
zeeshan1978	Need help ISD4002 Hi friends, This is the first time i am writting here for your support and help about Chipcorder ISD4002. I am making a project where i need to playback some recorded messages using ISD4002 IC. I am using ATMEGA8 Microcontroller and connected the ISD4002 with the Microcontroller. The Play stop and Record commands are working fine and it is also reading the current pointer address too. But when i record something it does not record and only play blank sound and only record blank. Could you please provide me how icould cnnect my PC to input Wav file directly into ISD or using Microcontroller or what is the shematic to use Microphone. regards, Shan

23rd September 2008, 02:06 AM	(permalink)
leejongfan	Hi, I bought one and tried to run it, but still cannot work Worse, actually i dont know how to debug it Following is my code in Mikro C for recording Code: void main() { ADCON1=0x06; //RA5 Digital I/O TRISA=0x20; //!RA5=SS: output for Chip Select TRISC=0x10; //RC5:output SDO //RC4: Input SDI //RC3:output SCK Spi_Init(); PORTA.F5=0; //!SS=0 chip enabled Spi_Write(0x20); // Power up Spi_Write(0x00); Delay_ms(25); //Tpud Spi_Write(0x20); //Power up Spi_Write(0x00); Delay_ms(50); //2 x Tpud Spi_Write(0xB0); //SETREC from location 0x00 Spi_Write(0x00); Delay_ms(10000); //delay 10s for recording Spi_Write(0x30); //STOP Spi_Write(0x00); Delay_ms(50); //Tstop; } http://s111.photobucket.com/albums/n...nt=isd4002.jpg This is not my first time doing PIC and C. I have basic background using C for PIC16f877 (just some basic stuffs like keypad, LCD...) The mikro C has built-in functions for SPI. Actually, there is one thing I confused: pin RA5/!SS/AN4 is used to select ISD4002--> it should be an digital output pin. But in datasheet, section9.1, it says that we have to set TRISA<5> which means RA5/!SS/AN4 will be a digital input. Last edited by leejongfan; 24th September 2008 at 12:53 PM.

24th September 2008, 02:58 PM	(permalink)
zeeshan1978	Hello friend, I think it is very long time i find finally how to work with the ISD4002. I am using BASCOM and it is working fine with me and i used in my project perfectly. If you need any help with BASCOM just write me back. Regards, Shan

24th September 2008, 03:12 PM	(permalink)
leejongfan	Hi Shan, Thanks a lot. Could you please send me any materials of your project you keep. Although our projects are not very similar but I believe I can learn something from you Thanks

24th September 2008, 04:38 PM	(permalink)
3v0	leejongfan, I asked a few simple background questions that you did not answer. How are we supposed to help, we can not read your mind. Why should we help when you are so disrespectful! Not angry just tired.. __________________ search engine for electronic parts Junebug USB PIC programmer kit., USB Bit Wacker, 3v0's Homepage The 15 Minute Printed Circuit Board! (+drill time)