~ruther/stm32h747i-disco-usb-image-viewer

ref: 9c2e500adbbb5a63f7db7cab78dcbdbd9567813d stm32h747i-disco-usb-image-viewer/firmware/tests/device_descriptor/delay.h -rw-r--r-- 93 bytes
9c2e500a — Rutherther docs: add missing docs 11 months ago 
                                                                                
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#include <stdlib.h>
#include <stdio.h>

#define DELAY_US(x) printf("Waiting for %d us.", x);