Choosing Chip / Slave Select (CS / SS) pins for an R3 SPI shield | Cypress Semiconductor
Choosing Chip / Slave Select (CS / SS) pins for an R3 SPI shield
I have a CY8CKIT-042BLE kit and decided to develop a little application with an Arduino R3 shield which uses SPI communication. The shield has hardwired the CS/SS pin as Arduino pin 7, which translates to P1.0.
Now in PSoC Creator I went to assign my pins and was surprised to see that P1.0 was not available for me to use as a SS.
I am now most curious to learn why is that.