This code is checked using BF707 EZkit.
The SPI0 is configured as Master and SPI1 is configured as Slave.
Here SPI0 is the Master which provides clock during communication and SPI1 is being slave transmits data to SPI0.
The connection are given as below, which is applicable for both SPI0 and SPI1
Connector : P1B
SPI0_Clk(16) ---- SPI1_Clk(82)
SPI0_MISO(105) ---- SPI1_MISO(83)
SPI0_SEL1(73) ---- SPI1_SEL1(48)
The SPI MUX and FER register configured using addin plug in system.svc.