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Results tagged with pi-2
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user 65521
This refers to the quad-core Raspberry Pi 2 (currently only available as a "B" model with Ethernet and four USB ports), with 1 gigabyte of RAM.
9
votes
Accepted
Extra 16M memory on Pi2/Pi3
The Pi has a 30-bit (1024MB) address space (the top two bits are used for caching aliases).
A small amount of one of the aliases is used for gpu peripheral access.
The arm accesses gpu memory space t …
- 262
6
votes
1
answer
1k
views
Extra 16M memory on Pi2/Pi3
My 1 GiB RAM Pi shows this:
>vcgencmd get_mem gpu
gpu=128M
>vcgencmd get_mem arm
arm=880M
The former is specified in /boot/config.txt, but the total here is only 1008 MiB. What happened to the oth …
- 262