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SPI_NSS_Hard or SPI_NSS_Soft for only one slave

Question asked by on Oct 15, 2015
Latest reply on Oct 15, 2015 by
Hi ,

I have an SPI program running successfully between two stm32f4 discovery boards using SPI_NSS as SPI_NSS_Soft. Some discussions on Stm32f4 SPI say that SPI_NSS_Soft has to be used when only one slave. Does that mean that when only 1 slave , we are not allowed to use SPI_NSS_Hard ?

But if we can use SPI_NSS_Hard then , what would be the difference in the configuration of the pins for sck , miso , mosi and nss on the master and on the slave side?  

Thank you so much.