Kinetis MicrocontrollersのトピックK20 DSPI controlling SS https://community.nxp.com/t5/Kinetis-Microcontrollers/K20-DSPI-controlling-SS/m-p/246654#M6573 <HTML><HEAD></HEAD><BODY><P>I'm looking at the DSPI docs and haven't yet found how to best go about controlling slave select. Can someone provide some insight as to how the designers intended that a programmer would control a single slave select pin? Program the PCS pin as GPIO? Use the polarity control for the PCS? Put the SPI in slave mode?</P><P></P><P>TIA</P><P>Tom</P></BODY></HTML> Mon, 23 Sep 2013 23:50:20 GMT DustyStew 2013-09-23T23:50:20Z K20 DSPI controlling SS https://community.nxp.com/t5/Kinetis-Microcontrollers/K20-DSPI-controlling-SS/m-p/246654#M6573 <HTML><HEAD></HEAD><BODY><P>I'm looking at the DSPI docs and haven't yet found how to best go about controlling slave select. Can someone provide some insight as to how the designers intended that a programmer would control a single slave select pin? Program the PCS pin as GPIO? Use the polarity control for the PCS? Put the SPI in slave mode?</P><P></P><P>TIA</P><P>Tom</P></BODY></HTML> Mon, 23 Sep 2013 23:50:20 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/K20-DSPI-controlling-SS/m-p/246654#M6573 DustyStew 2013-09-23T23:50:20Z Re: K20 DSPI controlling SS https://community.nxp.com/t5/Kinetis-Microcontrollers/K20-DSPI-controlling-SS/m-p/246655#M6574 <HTML><HEAD></HEAD><BODY><P>Customer could control the chip select signal with PUSH TX FIFO Register In Master Mode (SPIx_PUSHR) register [PCS[5:0]] bits.</P><P>Before set related register, customer need to config related pin with DSPI chip select function.</P><P>Wish it helps.</P></BODY></HTML> Tue, 24 Sep 2013 06:52:09 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/K20-DSPI-controlling-SS/m-p/246655#M6574 Hui_Ma 2013-09-24T06:52:09Z