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SPI questions

Question asked by brown.geoffrey.001 on Nov 27, 2016
Latest reply on May 1, 2017 by Clive One
I'm using F3 and L4 processors and have a few spi questions

1)  In half-duplex mode, how do you receive a single byte with a master ?  two bytes ?  It appears from reading that in this case, the SPI clock runs as long as one is in receive mode which begs the question -- how do you reliable stop on a byte boundary ?  This sounds like a designed in race condition.

2)  Can you change the data size while the SPI is enabled (but not in the middle of communicating) ?