Power & Source of Big Ideas

Hi, all my NanoPi Duos have the same MAC address for wlan0. In my setup I have multiple Access Points from multiple NanoPi Duos and the problem here is that all have the same BSSID (derived from the MAC address). I am using hostapd and dnsmasq. What I have tried so far (unsuccessful): - Change the m...
Hi,

is there a FCC and CE certification for the NanoPi Duo?
Also other certifications may be interesting.
I successfully disabled the serial console at UART 0 by setting console=tty1 instead of the previous ttyS0 inside /boot/boot.cmd . After that mkimage needs to be executed as shown in the comments. So right now I have two UARTs (ttyS0 and ttyS1) which can be used. Unfortunately I couldn't enable anot...
Hi, I noticed that npi-config makes it possible to enable 4 different UARTs. In the wiki (http://wiki.friendlyarm.com/wiki/index.php/NanoPi_Duo#Diagram.2C_Layout_and_Dimension) only pins for UART0 (debug), UART1 and UART3 are documented, so I am wondering which pins are used for UART2 ? I want to co...
Thank you for your reply. Unfortunately the problem is not solved with gcc4.8 (see below). I believe the problem is about the emulation of 64 bit integer division which is appearently not available in the 32 Bit ARMv7 architecture. It seems to be however solved if it is compiled with optimization e....
Hi, I'm not doing cross compiling. I have installed gcc on the Nano Pi Duo from the repositories. (sudo apt-get install g++ directly on the NanoPi). I think this should be the correct compiler or am I wrong about that? EDIT: I have just tried it with the mentioned cross compiler and the result is th...
Hi, I noticed that the division of 64 bit integers is broken on Nano Pi Duo using the gcc and runtime lib from the Ubuntu repositories. See the following example: #include <stdio.h> unsigned long long int __udivmoddi4(unsigned long long int num, unsigned long long int den, unsigned long long int * r...
Hi, I wanted to recompile the Linux Kernel for NanoPi Duo following this tutorial: http://nanopi.org/nanopi_development.html#5 . After replacing the zImage on the sdcard the Nano Pi Duo hangs on boot. I guess there's some configuration required to create the correct zImage. Unfortunately I couldn't ...