LPC Microcontrollers中的主题 Re: micro SD over SGPIO? https://community.nxp.com/t5/LPC-Microcontrollers/micro-SD-over-SGPIO/m-p/589682#M21976 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by wmues on Mon Jan 14 03:42:15 MST 2013</STRONG><BR /><SPAN>MicroSD is the same interface as normal SD. No difference.</SPAN><BR /><BR /><SPAN>You can make an interface with SPI, or use the SD mode.</SPAN><BR /><BR /><SPAN>In SD mode, you will have to check for a leading "0" bit in the responses from the SD card (like a V24).</SPAN><BR /><SPAN>And: you will have to implement CRC. CRC is calculated per IO line. If you have a 4bit interface, you will need to calculate 4 CRC values.</SPAN><BR /><BR /></BODY></HTML> Wed, 15 Jun 2016 19:16:31 GMT lpcware 2016-06-15T19:16:31Z micro SD over SGPIO? https://community.nxp.com/t5/LPC-Microcontrollers/micro-SD-over-SGPIO/m-p/589681#M21975 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by tomkulaga on Mon Jan 14 02:56:30 MST 2013</STRONG><BR /><SPAN>I was wondering if anyone has done it or if it is even feasible to create and micro Sd interface through the SGPIO on the lpc4330?</SPAN><BR /><BR /><SPAN>Tom</SPAN></BODY></HTML> Wed, 15 Jun 2016 19:16:30 GMT https://community.nxp.com/t5/LPC-Microcontrollers/micro-SD-over-SGPIO/m-p/589681#M21975 lpcware 2016-06-15T19:16:30Z Re: micro SD over SGPIO? https://community.nxp.com/t5/LPC-Microcontrollers/micro-SD-over-SGPIO/m-p/589682#M21976 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by wmues on Mon Jan 14 03:42:15 MST 2013</STRONG><BR /><SPAN>MicroSD is the same interface as normal SD. No difference.</SPAN><BR /><BR /><SPAN>You can make an interface with SPI, or use the SD mode.</SPAN><BR /><BR /><SPAN>In SD mode, you will have to check for a leading "0" bit in the responses from the SD card (like a V24).</SPAN><BR /><SPAN>And: you will have to implement CRC. CRC is calculated per IO line. If you have a 4bit interface, you will need to calculate 4 CRC values.</SPAN><BR /><BR /></BODY></HTML> Wed, 15 Jun 2016 19:16:31 GMT https://community.nxp.com/t5/LPC-Microcontrollers/micro-SD-over-SGPIO/m-p/589682#M21976 lpcware 2016-06-15T19:16:31Z