I am running the example "dspi_polling_b2b_transfer_master.c" and several other of the DSPI examples.
I have an oscilloscope attached to pins 12(CLK) and 11(SS) of the J3 TWRPI socket. When I run the example, nothing shows on the scope.
I get this as output:
`DSPI board to board polling example.
This example use one board as master and another as slave.
Master uses polling way and slave uses interrupt way.
Please make sure you make the correct line connection. Basically, the connection is:
DSPI_master -- DSPI_slave
CLK -- CLK
PCS -- PCS
SOUT -- SIN
SIN -- SOUT
GND -- GND
Error occured in DSPI transfer !
Press any key to run again` (I removed the print statements in the loop after "Master transmit")
When I do anything with I2C, I *do* get output shown on the oscilloscope. So what's up with DSPI?