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Definitions of functions present in the test codes of TMS320C5535 eZdsp USB KIT

Other Parts Discussed in Thread: TMS320C5535

Hello everyon,

While i was trying out the test codes for UART provided with TMS320C5535 eZdsp USB Kit, i encountered the below listed functions that were being used in the project whose definition i am unable to find:

Int16 EZDSP5535_UART_open( );
Int16 EVM5515_UART_close( );
Int16 EVM5515_UART_putChar( char data );
Int16 EVM5515_UART_getChar( char* data );

Int16 EZDSP5535_GPIO_init ( );
Int16 EZDSP5535_GPIO_setDirection ( Uint16 number, Uint16 direction );
Int16 EZDSP5535_GPIO_setOutput ( Uint16 number, Uint16 output );
Int16 EZDSP5535_GPIO_getInput ( Uint16 number );

I have searched all the .C files that are added to the project(there are only two .C file present in the project Main.c & uart_test.c), i have also searched all the associated header files but didn't find any think(I know that header files donot contain the defination of any function but still searched it to leave no stone unturn) As this is my 1st experience with a DSP controller so i have no clue where to find the definition of the above listed functions.

Please guide me to find the same & once found can i edit the content of the function definition as per my convenience 

eagerly waiting for reply