Thanks a lot. It works. I use exactly what you said. Best regards, Cyrille Piatte ----- Mail original ----- De: "smlng" <s@xxxxxxxx> À: "Cyrille PIATTE" <cyrille.piatte@xxxxxxxxxxxxxxxxxxx> Cc: linux-wpan@xxxxxxxxxxxxxxx, alan@xxxxxxxxxxx Envoyé: Vendredi 13 Mai 2016 10:15:34 Objet: Re: issue with the mrf24j40 driver Hi Cyrille, I have to look a up the details, but I had this module running with a Pi B+. But first I ran into (kind of) similar problems. You may have a look a at my DTS overlay here [1], for comparison; the pinout I used was as follows: > MRF24J40 RASPBERRY PI 2, PIN > > INT P16, BCM 23 > RST P1, 3.3V > CS P24 (CE0), BCM 8 > SCK P23 SCLK, BCM 11 > SDO P21, MISO, BCM 9 > SDI P19, MOSI, BCM 10 > 3.3V P17, 3.3V > GND P20, GND One problem I encountered, was that the MRF is expecting some input voltage (HIGH) on its reset pin, thus I connected it to P1, VCC 3.3 as a workaround. Btw. I used Raspbian with 4.1.19 Linux-Kernel, with the overlay linked in [1]. Hope this helps, best Sebastian [1]: https://github.com/RIOT-Makers/wpan-raspbian/wiki/Create-a-generic-Raspbian-image-with-6LoWPAN-support#31-transceiver-specific-device-tree-overlays > Am 13.05.2016 um 09:14 schrieb Cyrille PIATTE <cyrille.piatte@xxxxxxxxxxxxxxxxxxx>: > > Hello, > > I encounter some issues with the mrf24j40 module. I am currently trying to sniff 802.15.4 packets. > > I have a mrf24j40ma ( http://www.microchip.com/wwwproducts/en/MRF24J40 ) module which is wired to a raspberry pi 2 (raspbian-jessie with linux kernel 4.1.19) > I wired the module as follow : > > http://pinout.xyz/pinout/pin1_3v3_power > > MRF24J40 RASPBERRY PI 2 > > INT BCM 22 > RST BCM 25 > CS BCM 8 (CE0) > SCK BCM 11 (SCLK) > SDO BCM 9 (MISO) > SDI BCM 10 (MOSI) > 3.3V 3.3 power (physical 1) > GND ground (physical 6) > > I have modified the /boot/config.txt in which I have appended 'dtoverlay=mrf24j40'. I also have uncommented the line 'dtparam=spi=on'. > Here is my code for the overlay : > > //----------------------------------------------------------------------------------------------------------------------------------------------------- > > /dts-v1/; /*required header*/ > /plugin/; /*signal to the compiler that it needs to generate linkage information (allows unresolved symbols to be patched later)*/ > > /*node root*/ > / { > > /*list the compatible device drivers and load the first one*/ > compatible ="bcrm, bcm2835", "bcrm, bcm2836", "bcrm, bcm2708", "bcrm, bcm2709"; > > /* > a fragment apply modifications to a node (defined in the compatible file.dtX loaded) > it is composed by a target (the node to modify) and an overlay (the modifications) > */ > > /*modification of the SPI part*/ > fragment@0 { > target = <&spi0>; /* the mrf24j40 module is linked with the spi0 (defined in bcm2XXX.dtX) branch (white wire) */ > __overlay__ { > #address-cells = <1>; > #size-cells = <0>; > status = "okay"; > > mrf24j40@0 { > compatible = "mrf24j40"; /*load the driver*/ > reg = <0>; /*because it is the spi0 ce0 which is linked with the CS (otherwise spi0 ce1 <-> CS and reg = <1>)*/ > interrupts = <22 0x1>; > interrupt-parent = <&gpio>; > spi-max-frequency = <5000000>; /*or 1000000*/ > }; > > spidev@0 { > status = "disabled"; > }; > > spidev@1 { > status = "disabled"; > }; > }; > }; > }; > > //----------------------------------------------------------------------------------------------------------------------------------------------------- > > > When I boot the raspberry pi 2, the modules spi_bcm2835 and mrf24j40 are loaded which is okay (from the overlay). Moreover, both the physical (phy0 with 'iz listphy') and dev (wpan0 with 'iz list') interfaces are present. So I can set up my 802.15.4 network. I use lowpan-tools with 'iz set' to give an address, a pan_id and and a channel to the wpan0 interface. Then I put the interface up ('ifconfig wpan0 up'). > > I launch wireshark and a device that send 802.15.4 frames (that are detected by other devices with similar configuration in term of address, pan_id and channel, so the issue does not seem to come from here). Wireshark do not display any frame. > > Do you have any clues about what may be wrong ? > > I thank you in advance for your support. > > Best regards, > > Cyrille Piatte > -- > To unsubscribe from this list: send the line "unsubscribe linux-wpan" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html Sebastian [mail]: s@xxxxxxxx [code]: https://github.com/smlng -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
