NickQian
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NickQian
I tried “& ~0xC0000000“ on pi 2 with Stretch, seems that cannot get correct bus address. I don't know why and I'm planning to change to use the mbox and...
I tried the mailbox and mem_lock method, it works well. I guess the mmap and "& ~0xC0000000" way doesn't work on pi2/pi3 with Stretch. they may changed some memory map...