I have a buildroot repo which builds a Linux operating system using the FriendlyElec v4.4 Linux kernel here : https://github.com/flatmax/buildroot.rk3399.external/tree/dummy-soundcad-v4.4 The operating system sets up a dummy soundcard running on the I2S 0 pins. Unfortunately it appears that the DMA ...

Hi there, We find that for sample rates > 48 kHz the I2S0 bus seems to drop input audio samples. The sample dropping is random. We are using stock Linux kernels v5 built with buildroot : https://github.com/flatmax/buildroot.rk3399.external Is there any knowledge of an I2S0 chip level bug on the I2S ...

Any updates on DSI displays for the M4 ?

I have built an sdcard image for the Neo4 using this external buildroot system : https://www.friendlyarm.com/Forum/viewtopic.php?f=61&t=2020 I am having trouble starting weston, I get the following errors - any help would be hugely appreciated : # weston --tty 2 Date: 2018-12-07 UTC [05:45:15.04...

Hi there, I have a complete buildroot external tree for building Neo4 images available : https://github.com/flatmax/NanoPi.Neo4.buildroot.external It is a very simple way to build working Linux images for the Neo4. Once setup, all you need to do is type the following : . NanoPi.Neo4/setup.sh yourPat...

Can you please highlight exactly where the boot.img is generated ? Is this the same boot.img which is used by sd_fuse-rk3399 to generate the sdcard image ?

Hi there, I would like to generate boot.img, however any time I do generate boot.img the sdcard doesn't work. If I do the following to build the boot.img : git clone https://github.com/friendlyarm/kernel-rockchip --depth 1 -b nanopi4-linux-v4.4.y kernel-rockchip cd kernel-rockchip make nanopi4_linux...

I have found a roackchip buildroot repo :
https://github.com/rockchip-linux/buildroot

However, it doesn't produce a complete system.

Matt

Hi there,

We just received our NEO4 boards we will use as our dev boards for our product.
We want to use buildroot with this board. Any buildroot repos available ?

thanks
Matt

Hi there,

For the NEO4 hardware, we need to use both HDMI for an external screen AND want to use an OLED or LCD touch display.
What connector options are available on the NEO4 for touch OLED/LCD displays ?

thanks
Matt