LPCXpresso IDEのトピックRe: Internal Pull- ups in SPI protocol, LPC1317-64P https://community.nxp.com/t5/LPCXpresso-IDE/Internal-Pull-ups-in-SPI-protocol-LPC1317-64P/m-p/561898#M16503 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by leon_heller on Mon Mar 04 04:47:50 MST 2013</STRONG><BR /><SPAN>Pull-ups aren't required for SPI.</SPAN></BODY></HTML> Wed, 15 Jun 2016 23:40:26 GMT lpcware 2016-06-15T23:40:26Z Internal Pull- ups in SPI protocol, LPC1317-64P https://community.nxp.com/t5/LPCXpresso-IDE/Internal-Pull-ups-in-SPI-protocol-LPC1317-64P/m-p/561897#M16502 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by aamir ali on Mon Mar 04 00:07:47 MST 2013</STRONG><BR /><SPAN>1 .Since in MISO0 line is input pin, so is there need of using internal pull up of LPC1317, so avoid floating condition.</SPAN><BR /><BR /><SPAN>2. Or we can put pull up at both MISO &amp; MOSI lines without problem.</SPAN><BR /><SPAN>If yes,MOSI is output pin so on having internal pull up enabled is right, or it will affect the circuit.</SPAN><BR /><BR /><SPAN>3. Or I should not use pull up with any of line.</SPAN><BR /><BR /><BR /><SPAN>I have interface SD card with SPI protocol</SPAN></BODY></HTML> Wed, 15 Jun 2016 23:40:25 GMT https://community.nxp.com/t5/LPCXpresso-IDE/Internal-Pull-ups-in-SPI-protocol-LPC1317-64P/m-p/561897#M16502 lpcware 2016-06-15T23:40:25Z Re: Internal Pull- ups in SPI protocol, LPC1317-64P https://community.nxp.com/t5/LPCXpresso-IDE/Internal-Pull-ups-in-SPI-protocol-LPC1317-64P/m-p/561898#M16503 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by leon_heller on Mon Mar 04 04:47:50 MST 2013</STRONG><BR /><SPAN>Pull-ups aren't required for SPI.</SPAN></BODY></HTML> Wed, 15 Jun 2016 23:40:26 GMT https://community.nxp.com/t5/LPCXpresso-IDE/Internal-Pull-ups-in-SPI-protocol-LPC1317-64P/m-p/561898#M16503 lpcware 2016-06-15T23:40:26Z