topic UART DMA PROBLEM ARM lpc1769 in LPCXpresso IDE https://community.nxp.com/t5/LPCXpresso-IDE/UART-DMA-PROBLEM-ARM-lpc1769/m-p/584457#M26290 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by tmltml51 on Fri Nov 23 08:46:47 MST 2012</STRONG><BR /><SPAN>I want to receive data from the camera via UART.&nbsp;&nbsp; To set the camera</SPAN><BR /><SPAN>I have&nbsp; to send each other packages of about 5 bytes to uart use DMA .&nbsp; while each packet sent . I receive confirmation from the uart data using&nbsp; DMA..I change library lpc17xx.cmsis.driver.library \ uart_dma to do&nbsp; this on LPCXpresso.</SPAN><BR /><SPAN>but the problem I can only send a single packet for the first&nbsp; time and received data packets .I can not be sent next packet I try to&nbsp; create a loop but can not be reset DMA after send packet the frirst time.</SPAN><BR /><SPAN>What is my problem?</SPAN><BR /><SPAN>is there a way to solve it?</SPAN><BR /><SPAN>Last question using DMA UART faster UART interrupt ?</SPAN></BODY></HTML> Wed, 15 Jun 2016 22:45:50 GMT lpcware 2016-06-15T22:45:50Z UART DMA PROBLEM ARM lpc1769 https://community.nxp.com/t5/LPCXpresso-IDE/UART-DMA-PROBLEM-ARM-lpc1769/m-p/584457#M26290 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by tmltml51 on Fri Nov 23 08:46:47 MST 2012</STRONG><BR /><SPAN>I want to receive data from the camera via UART.&nbsp;&nbsp; To set the camera</SPAN><BR /><SPAN>I have&nbsp; to send each other packages of about 5 bytes to uart use DMA .&nbsp; while each packet sent . I receive confirmation from the uart data using&nbsp; DMA..I change library lpc17xx.cmsis.driver.library \ uart_dma to do&nbsp; this on LPCXpresso.</SPAN><BR /><SPAN>but the problem I can only send a single packet for the first&nbsp; time and received data packets .I can not be sent next packet I try to&nbsp; create a loop but can not be reset DMA after send packet the frirst time.</SPAN><BR /><SPAN>What is my problem?</SPAN><BR /><SPAN>is there a way to solve it?</SPAN><BR /><SPAN>Last question using DMA UART faster UART interrupt ?</SPAN></BODY></HTML> Wed, 15 Jun 2016 22:45:50 GMT https://community.nxp.com/t5/LPCXpresso-IDE/UART-DMA-PROBLEM-ARM-lpc1769/m-p/584457#M26290 lpcware 2016-06-15T22:45:50Z Re: UART DMA PROBLEM ARM lpc1769 https://community.nxp.com/t5/LPCXpresso-IDE/UART-DMA-PROBLEM-ARM-lpc1769/m-p/584458#M26291 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by tmltml51 on Sun Nov 25 01:10:35 MST 2012</STRONG><BR /><SPAN>any one help me?</SPAN></BODY></HTML> Wed, 15 Jun 2016 22:45:51 GMT https://community.nxp.com/t5/LPCXpresso-IDE/UART-DMA-PROBLEM-ARM-lpc1769/m-p/584458#M26291 lpcware 2016-06-15T22:45:51Z