cy7c65211 SPI slave mode

I am trying to do a simple SPI based data logger and using cy7c65211 came with psoc4 kit in spi slave mode.

i am on windows10 and have written a simple c based application but its not working consistently. some time it works some times spi_read_write request fails with CY_ERROR_REQUEST_FAILED.

share your thoughts!

~SwK