We have created an Applet for capturing image from a 8k camera (Teledyne e2v Eliixa+ 8k monochrome) in full mode 8bitx8 tap. Image capturing at full resolution at 40KHz line rate is OK. But we also need a down-sampled image (width/2 and height/4) from another DMA. We used "Sample down" operator but it resulted in build error and some times it ran up to 12 hrs!. I also tried sampling down with other operators but that too not getting built/synthesized. Could you please guide me if there is any mistake in the design? Attaching the VA file for your reference. Refer "SampleDown" hierarchical block.