LPC MicrocontrollersのトピックRe: LPC1225 slave mode SPI https://community.nxp.com/t5/LPC-Microcontrollers/LPC1225-slave-mode-SPI/m-p/526267#M8900 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by joshuaclayton on Tue Feb 25 14:21:03 MST 2014</STRONG><BR /><SPAN>This is not an answer to your question, but why not write the same number of bytes you read?</SPAN><BR /><SPAN>Either only put 2 bytes in the fifo, or read all 4 from the master?</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:02:30 GMT lpcware 2016-06-15T17:02:30Z LPC1225 slave mode SPI https://community.nxp.com/t5/LPC-Microcontrollers/LPC1225-slave-mode-SPI/m-p/526266#M8899 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by denn4208 on Fri Nov 08 16:38:12 MST 2013</STRONG><BR /><SPAN>I have configured the LPC1225 to act as an SPI slave.</SPAN><BR /><SPAN>Does anyone know how to clear the slaves transmit FIFO.</SPAN><BR /><SPAN>For example, if the master sends a read request and I load the FIFO with 4 bytes of data, but the master only reads 2 bytes&nbsp; how do I clear the remaing 2 bytes from the buffer so that they are not sent out on the next request.</SPAN><BR /><BR /><SPAN>The user manual does not specify any way to clear the transmit FIFO.&nbsp; I have also look at the ARM PrimeCell Synchronous Serial Port (PL022)</SPAN><BR /><SPAN>Technical Reference Manual and did not find any thing there either. </SPAN><BR /><BR /><SPAN>Thank you</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:02:29 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC1225-slave-mode-SPI/m-p/526266#M8899 lpcware 2016-06-15T17:02:29Z Re: LPC1225 slave mode SPI https://community.nxp.com/t5/LPC-Microcontrollers/LPC1225-slave-mode-SPI/m-p/526267#M8900 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by joshuaclayton on Tue Feb 25 14:21:03 MST 2014</STRONG><BR /><SPAN>This is not an answer to your question, but why not write the same number of bytes you read?</SPAN><BR /><SPAN>Either only put 2 bytes in the fifo, or read all 4 from the master?</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:02:30 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC1225-slave-mode-SPI/m-p/526267#M8900 lpcware 2016-06-15T17:02:30Z