topic Problem with SD card data Write in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/Problem-with-SD-card-data-Write/m-p/522063#M4699 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by schisanoa on Thu Feb 05 06:34:39 MST 2015</STRONG><BR /><SPAN>Hi, I'm testing a firmware that save data into an SD card(with example code included in LPC Open), on a LPC4088, and I discovered that if I write 16384 byte, and then read it back the last 512 byte wrote are always all set to 0. </SPAN><BR /><SPAN>It happens also with 32768 byte. I've not tested over that. </SPAN><BR /><BR /><SPAN>Another important thing I discovered is that this problem happens only when DMA is used, if I disable DMA and use FIFO the system work fine. Could someone help me to find the origin of the problem in order to solve it? </SPAN><BR /><BR /><SPAN>Thaks in advance</SPAN><BR /><BR /></BODY></HTML> Wed, 15 Jun 2016 16:38:57 GMT lpcware 2016-06-15T16:38:57Z Problem with SD card data Write https://community.nxp.com/t5/LPC-Microcontrollers/Problem-with-SD-card-data-Write/m-p/522063#M4699 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by schisanoa on Thu Feb 05 06:34:39 MST 2015</STRONG><BR /><SPAN>Hi, I'm testing a firmware that save data into an SD card(with example code included in LPC Open), on a LPC4088, and I discovered that if I write 16384 byte, and then read it back the last 512 byte wrote are always all set to 0. </SPAN><BR /><SPAN>It happens also with 32768 byte. I've not tested over that. </SPAN><BR /><BR /><SPAN>Another important thing I discovered is that this problem happens only when DMA is used, if I disable DMA and use FIFO the system work fine. Could someone help me to find the origin of the problem in order to solve it? </SPAN><BR /><BR /><SPAN>Thaks in advance</SPAN><BR /><BR /></BODY></HTML> Wed, 15 Jun 2016 16:38:57 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Problem-with-SD-card-data-Write/m-p/522063#M4699 lpcware 2016-06-15T16:38:57Z Re: Problem with SD card data Write https://community.nxp.com/t5/LPC-Microcontrollers/Problem-with-SD-card-data-Write/m-p/522064#M4700 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by schisanoa on Tue Mar 17 04:12:25 MST 2015</STRONG><BR /><SPAN>Could someone help me?</SPAN></BODY></HTML> Wed, 15 Jun 2016 16:38:58 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Problem-with-SD-card-data-Write/m-p/522064#M4700 lpcware 2016-06-15T16:38:58Z