change uart example

Hi 

 I used omapl137evm from spectrum digital. 

i used below example from ti :

C:\Program Files\Texas Instruments\pspdrivers_01_30_00_05\packages\ti\pspiom\examples\evmOMAPL137\uart\interrupt\build\uartSample.pjt

this example run on my board very good.

in this example when data  transmit with uart, program wait in below line until receive 1000 byte :

status = GIO_submit(hUart_OUT,IOM_WRITE, buf, &len, NULL);

i will not wait in line. i want do my work but when data is send for me i get it.

can i do this work with interrupt function?

can i used this line in interrupt function?

Regards,

Mahdi