lpcware

UART DMA PROBLEM  ARM lpc1769

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by tmltml51 on Fri Nov 23 08:46:47 MST 2012
I want to receive data from the camera via UART.   To set the camera
I have  to send each other packages of about 5 bytes to uart use DMA .  while each packet sent . I receive confirmation from the uart data using  DMA..I change library lpc17xx.cmsis.driver.library \ uart_dma to do  this on LPCXpresso.
but the problem I can only send a single packet for the first  time and received data packets .I can not be sent next packet I try to  create a loop but can not be reset DMA after send packet the frirst time.
What is my problem?
is there a way to solve it?
Last question using DMA UART faster UART interrupt ?

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