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Rock64 micro-sd controller defective?
z4v4l
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01-17-2018, 09:34 AM (This post was last modified: 01-17-2018, 09:35 AM by z4v4l.)
(01-17-2018, 04:19 AM)xalius Wrote: No surprise there, the SD card interface on Rock64 operates at 3.3V so it only does SD high speed which is limited to 25MB/s. If you want fast flash media use eMMC which runs at 1.8V and supports HS200...
How do you know this? I mean I also want to know, but the advertised "open-source" Rockchip crappual doesn't have anything SD interface related.
According to the leaked "confidential" Wink Cool rk3399 manual floating on the Internet, SD interface is capable of doing
Quote:Up to 832Mbits per second data rate using 4 parallel data lines (SD’s SDR104
mode)
I believe, rk3328 has the same controller.
ANT - my hobby OS for x86 and ARM.
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RE: Rock64 micro-sd controller defective? - by z4v4l - 01-17-2018, 09:34 AM

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