I use TWR-K60D100M spi0 is master , spi1 is slave , sip0 send "3" to spi1 , In the scope I can see the correct signal and clk singnal .
And I also can see the transfer count register " SPI1_TCR" work increase ,
And in the spi1 , I can see the spi1_sr_tcf setting to 1, also spi1 can enter the receiving interrupt .
While in the FIFO register "SPI1_POPR" is always 0. I don.t know why ?
Thank you !