Great work providing vdd1_opps_vsel \,,/ I'm currently testing stable voltages for each scaling step starting from 250mhz (set min/max scale to 250). Stressing with pi_css5-vfp5 and nbench + file copy operations from mmc to internal and reverse. Right now 250Mhz is proven stable at 18 vset. Lowest vset is between 10 and 18 because 10 caused reset :P