I have tried interfacing SD card.But getting timeout problem.How could i solve??
Have you taken a look at this implemenation ?
you could use the emFile Component,which makes SD card interfacing a very simple matter.See more on it here
Right click on emFile SPI mode component and selct "Find Example Project" and add the "emFile_Example" project to a new workspace. See if this project helps you interfacing SD card with a PSoC 3.