using two Two external interrupt sources and DMA to get data in stm32f10x

[rozaenc]

Posted on July 10, 2013 at 10:55

Hi,  I wana to get data from CMOS image sensor by using DMA in stm32f10x, but I need  use two external  interrupts to start get data via DMA. 

One

of them

is used

to

notify

the start of the

frame a

nd the other

is used

to indicate the

beginning of a line. is it possible to use two external interrupts  with DMA?. because the DMA dosent use the CPU. would you guide me please?

[Tesla DeLorean]

Posted on July 10, 2013 at 13:15

Not easily, you'd probably need to go through a TIM unit to generate DMA requests. You should perhaps look at the DCMI interface on the F2 and F4 parts.