STM32F4 DMA Interrupt big latency :(
Hi everybody
i work on a project and in my project dma sync by timer1 and timer1 as config for pwm and dma trigger on update event.
i have a big problem.
my total transient is cost and after finish dma must stop timer to disable output pwm .
but when dma intruppt triggered ,after 3-4 extra clock timer1 disabled and it make problem for me becuase i loss sync data transfered with pwm pulse
do you have any idea about this issus
my pwm freq around 16Mhz and if i redused it under 8Mhz this problem not happened again
i have problem about it
tnx for attention