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Bare metal, Assembly language • Re: Accessing ISP functionality on Raspberry Pi 3 Model B

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I guess this means it won't let me read those registers from the Linux user side.
for basic testing, you can defeat that with vcpoke

that does reads from the VPU side, so you need to use a 7e based address

as an example, ST_CLO is the lower 32bits of a clock that ticks at 1mhz, it lives at 0x7e003004
edit the vcpoke program to readmem(0x7e003004) and youll get 32bits of the uptime in uSec
if its been under ~70 minutes, it wont have rolled over yet

Statistics: Posted by cleverca22 — Fri Apr 19, 2024 11:57 pm



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