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

ref: cb4fa519d2c542d36e961a7982e079cc5e6eb00b stm32h747i-disco-usb-image-viewer/tests/device_descriptor/delay.h -rw-r--r-- 93 bytes
cb4fa519 — Rutherther fix: ensure register access are inline 1 year, 1 month ago 
                                                                                
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#include <stdlib.h>
#include <stdio.h>

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