lpcware

GPIO-triggered DMA

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by anhdung88 on Sun Aug 03 07:45:08 MST 2014
I'm following a project that is streaming image from camera module like this:
http://www.rpg.fi/desaster/blog/tag/lpc1769/
He is using GPIO pins to fetch data from camera but I think when put the processor with more works like streaming it over LAN, the performance is unacceptable.
I wander whether if a mechanism to make DMA transfer from GPIO pins for faster with two questions
1) Does LPC1769 or higher level LPC chips support GPIO DMA transactions?
2) If no direct method found, may I use UART DMA transaction instead? If it's feasible, UART-DMA performance vs using FGPIO (time consume)?

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