Revisiting this problem after almost a year

2 files changed, 21 insertions, 6 deletions

diff --git a/hw/merkur-board.mdwn b/hw/merkur-board.mdwn
index 76b8696..640c24a 100644
--- a/hw/merkur-board.mdwn
+++ b/hw/merkur-board.mdwn
@@ -7,7 +7,7 @@ some sensors. The [Merkur Board][0] is open hardware:
 
 It has digital outputs as well as digital, analog and PWM outputs and
 supports attaching Arduino Grove Modules which should make experiments
-simple.  In order to test thinks I use the
+simple.  In order to test things I use the
 [Plant Oberservation Kit][1] set.
 
 One uses USB-Serial converter to flash the device. Details on how to
@@ -63,13 +63,12 @@ breakout*][8] flashing works as expected:
 The flashed firmware uses *channel 26* and *pan_id 0xabcd* by default.  This can
 be seen on the serial output (you can use the same serial converter as for
 flashing). To read the serial console I've so far used the serial console
-window from the arduino ide since *screen* doesn't support the 14400 baud used
-by the merkur-board.
+window from the arduino ide since *screen* doesn't support the 38400 baud used
+by the merkur-board ().
 
 While I'm seeing packages looking for a RIPL router send by the merkur-board
 when using a Raspberry Pi as described in [[here|rpi6lowpan]], I can't ping the
-board on it's link local address yet. I can also verify that it detects the
-RIPL router but the device is still not reachable.
+board on it's link local address yet.
 
 So let's for now use a second merkur board as [edge-router][].
 
@@ -90,6 +89,20 @@ We can now query the moisture sensor using [libcoap]:
     $ ./coap-client -m get coap://[2001:db8:c001:f00d:221:2eff:ff00:347c]/moisture/v
 
 
+## Some Linux, Contiki interop progress
+
+Looking into the above problem in some more detail it shows that using
+[[rpi6lowpan]] setup in [monitor mode][] we see all the packages sent
+from the merkur boards on Linux but not vice verca. If we
+[disable sleep mode][] in contiki we can receive frames from Linux
+when pinging the merkur-board from the Raspberry Pi:
+
+    Received NS from fe80::80cd:9a1:845b:4d6a to ff02::1:ff00:3304 with target addressfe80::221:2e��f:ff0N��
+    Sending NA to fe80::80cd:9a1:845b:4d6a from fe80::221:2eff:ff00:3304 with target address fe80::221:2eff:ff00:3304
+    sicslowpan output: sending packet len 80
+    before compression (40): 6000000000283aff
+	...
+
 [0]: http://osdwiki.open-entry.com/doku.php/de:projekte:merkur
 [1]: http://osdwiki.open-entry.com/doku.php/de:projekte:plant_observation_kit
 [2]: http://osdwiki.open-entry.com/doku.php/de:tutorials:first_steps_arduino_ide
@@ -103,3 +116,5 @@ We can now query the moisture sensor using [libcoap]:
 [edge-router]: http://osdwiki.open-entry.com/doku.php/de:tutorials:contiki:merkur_board_rpl_usb_router
 [Find A5]: http://osdwiki.open-entry.com/doku.php/de:products:merkur_grove_board_4
 [libcoap]: http://sourceforge.net/projects/libcoap/
+[monitor mode]: http://wpan.cakelab.org/#_sniffing
+[disable sleep mode]: https://github.com/agx/osd-contiki/commit/5ecf780a4873b6942e50964cfcb3d067b0a60cce
diff --git a/hw/rpi6lowpan.mdwn b/hw/rpi6lowpan.mdwn
index e42a623..3ec638d 100644
--- a/hw/rpi6lowpan.mdwn
+++ b/hw/rpi6lowpan.mdwn
@@ -7,7 +7,7 @@ at86rf233) so we can later use it as a e.g. border router.
 [[!img rpiradio.jpg size="x150" alt="Raspberry Pi with 802.15.4 radio"]]
 
 The default Raspberry Pi kernel used to lack support for recent
-[wpan-tools][3]. So we cross build akernel and boot it via tftp.
+[wpan-tools][3]. So we cross build a kernel and boot it via tftp.
 Newer kernels have basic support so you only need to do this if you
 want to hack on the kernel's [6LoWPAN][1] parts.