Hi, i’m working on a genio510 and im noticing that running an app from the uSD causes some lags. IS there a way to increase the speed of the Bus ?
I’ve tested the same app from the nmve and it works fine
thanks
Hi Gian,
You may have a quick check via the command under kernel shell.
#cat /sys/kernel/debug/mmc1/ios
And you should see the following settings if sd-uhs-sdr104 is configured correctly.
If not, please inspect the mmc1(for sd) node settings in both platform and project dts.
clock: 200000000 Hz
actual clock: 192000038 Hz
vdd: 19 (3.1 ~ 3.2 V)
bus mode: 2 (push-pull)
chip select: 0 (don’t care)
power mode: 2 (on)
bus width: 2 (4 bits)
timing spec: 6 (sd uhs SDR104)
signal voltage: 1 (1.80 V)
driver type: 0 (driver type B)