interfacing of gsm modem to 89c51

If you want people to write your code for you, then you must expect to pay them in some way or another - money is usually the most convenient way.

In order for someone to write your code for you, they will require a detailed specification of your requirements, constraints, etc.

After studying your specification (and clarifying any issues), potential suppliers will give you a quote of how long the work should take, and how much it should cost.

The Device Database entry for each supported chip lists a number of Consultants having experience with this particular chip: http://www.keil.com/dd/chip/3682.htm

You can also search the entire consultants database: http://www.keil.com/condb/

Your chip supplier may also be able to recommend local design resources

etc, etc,...

If you want people to write your code for you, then you must expect to pay them in some way or another - money is usually the most convenient way.

In order for someone to write your code for you, they will require a detailed specification of your requirements, constraints, etc.

After studying your specification (and clarifying any issues), potential suppliers will give you a quote of how long the work should take, and how much it should cost.

The Device Database entry for each supported chip lists a number of Consultants having experience with this particular chip: http://www.keil.com/dd/chip/3682.htm

You can also search the entire consultants database: http://www.keil.com/condb/

Your chip supplier may also be able to recommend local design resources

etc, etc,...

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