Can't build librf24-bcm on Banana Pi

Jan Gatzke

Banana Pi.

I think the problem is, that the banana pi uses another cpu and needs another spi driver. As the Raspberry master seems to compile against the broadcom driver there will be no easy fix for this.

GreenSystemes

@Jan-Gatzke said:

I think the problem is, that the banana pi uses another cpu and needs another spi driver. As the Raspberry master seems to compile against the broadcom driver there will be no easy fix for this.

Agreed ! But if I do :

sudo raspi-config

It should work ... but here, there is an error :

FATAL: Module spi-bcm2708 not found.

Now, I merged these files : https://github.com/LeMaker/bcm2835_BP with mysensors Lib and it partially works. I can compile but PiGateway doesn't work ...
Nobody used a Banana Pi with mySensors before ?

Jan Gatzke

Bcm stands for Broadcom. And there is no broadcom chip in the banana pi. You need to enable spi and then customize the source and port it to the banana pi.

GreenSystemes

To enable SPI, I run :

sudo modprobe spi-sun7i

sudo raspi-config

I got :

FATAL: Module spi-bcm2708 not found

But when I check in /dev/ SPI seems enabled

ls /dev/spi*
/dev/spidev0.0  /dev/spidev0.1

Now, when I execute PiGatewaySerial, I have a "check wires" message. But it can still be the drivers, or maybe I plugged the NRF on the wrong SPI port ?

Jan Gatzke

Not sure what you are going to do with raspiconfig. Just addspi-sun7i to /etc/modules. The banana pi seems to have two spi busses. Could it be you have to connect the nrf to the other one? Or change the bus in the source code if hard coded? I don't have a banana pi and never used a pi as gateway. Still I wanna help. :D

GreenSystemes

I'll try the second SPI bus but it seems be the good bus.
After add spi-sun7i in /etc/modules, what i'm supposed to do ? reboot ? just try to run PiGateway ?

Jan Gatzke

Nothing. It's just for automatic modprobe on boot. Does lsmos show the module as loaded?

GreenSystemes

the result of lsmod :

Module                  Size  Used by
spidev                  6217  12 
spi_sun7i              17802  0 
mali_drm                2608  0 
drm                   209226  1 mali_drm
mali                  111427  0 
ump                    52415  1 mali

Jan Gatzke

Looks good.

GreenSystemes

okay thank you for your help,
i'm trying an other way to run mysensors, i'll post a fix when it works.

Jan Gatzke

I just had another look at this. There is an nrf24 library for the banana pi: https://github.com/bearpawmaxim/librf24-sunxi/tree/master/src
The raspberry gateway must be ported to this lib. Doesn't look to complicated.

Can't build librf24-bcm on Banana Pi

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