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Cannot change the option byte AFR7 for beeper using STVP

Question asked by Lei Sun on Jul 23, 2017
Latest reply on Jul 24, 2017 by Szymon Panecki

Hi all,


i'm currently using STM8S003K3 and want to change the option byte for the beeper using STVP. But after I connected the discovery board to my PC, I can't change AFR7 because it is "reserved". 

Anyone know what I'm doing wrong? Thanks.