2018-10-09 11:46 AM
Is there a difference in the usage of the DCMI peripheral between the l4 (STM32L49x) microcontrollers and the l4+ (STM32L4R5xx) chips?
I have a camera working with dma on dcmi with the STM32L496, but the same c code does not work correctly with STM32L4R5AG. Other peripherals (usb, gpios etc) work fine.
I find that instead of capturing a frame (in snapshot mode) the dcmi shows an overrun error with OVR_RIS set, and no frames are stored in the fifo or DMA memory location
Also which minimum CUBE version should be used ?
thanks
2018-10-09 09:04 PM
I'd watch for differences in clocking structures, the rates of different buses, the dividers and PLL sources for different peripherals.
Review BSP of EVAL boards supporting camera connectivity.
2018-10-09 10:14 PM
Thanks for the reply.
There does not seem to be an l4+ board with a dcmi project ..