LPC MicrocontrollersのトピックSPI on LPC-Link 2 (OM13054) Header J3 https://community.nxp.com/t5/LPC-Microcontrollers/SPI-on-LPC-Link-2-OM13054-Header-J3/m-p/567237#M17488 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by OllieK on Mon Jan 06 18:21:16 MST 2014</STRONG><BR /><SPAN>This </SPAN><STRONG>LPC4370</STRONG><SPAN> based board has one Synchronous Serial Port (</SPAN><STRONG>SSP1</STRONG><SPAN>) connected to </SPAN><STRONG>J3 </STRONG><SPAN>together with UART2, I2C, GPI05_8, GPI03_5, GPIO05_9, and GPI03_7.&nbsp; There is only one SSP_SEL signal (pin 6).&nbsp; In my application, there are multiple SPI slaves.&nbsp;&nbsp; The questions are:</SPAN><BR /><BR /><SPAN>1) Can I use the GPIO signals in this connector for slave selection</SPAN><BR /><SPAN>2) What is the difference between the SSP_SEL and the GPIO signals</SPAN><BR /><SPAN>3) What is (are) the SPI libraries to be used for multi-slave configuration</SPAN><BR /><SPAN>4) Is the mutli-slave configuration supported by FreeRtos</SPAN><BR /><SPAN>5) Is the multi-slave configuration supported by DMA</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:53:02 GMT lpcware 2016-06-15T18:53:02Z SPI on LPC-Link 2 (OM13054) Header J3 https://community.nxp.com/t5/LPC-Microcontrollers/SPI-on-LPC-Link-2-OM13054-Header-J3/m-p/567237#M17488 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by OllieK on Mon Jan 06 18:21:16 MST 2014</STRONG><BR /><SPAN>This </SPAN><STRONG>LPC4370</STRONG><SPAN> based board has one Synchronous Serial Port (</SPAN><STRONG>SSP1</STRONG><SPAN>) connected to </SPAN><STRONG>J3 </STRONG><SPAN>together with UART2, I2C, GPI05_8, GPI03_5, GPIO05_9, and GPI03_7.&nbsp; There is only one SSP_SEL signal (pin 6).&nbsp; In my application, there are multiple SPI slaves.&nbsp;&nbsp; The questions are:</SPAN><BR /><BR /><SPAN>1) Can I use the GPIO signals in this connector for slave selection</SPAN><BR /><SPAN>2) What is the difference between the SSP_SEL and the GPIO signals</SPAN><BR /><SPAN>3) What is (are) the SPI libraries to be used for multi-slave configuration</SPAN><BR /><SPAN>4) Is the mutli-slave configuration supported by FreeRtos</SPAN><BR /><SPAN>5) Is the multi-slave configuration supported by DMA</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:53:02 GMT https://community.nxp.com/t5/LPC-Microcontrollers/SPI-on-LPC-Link-2-OM13054-Header-J3/m-p/567237#M17488 lpcware 2016-06-15T18:53:02Z