Changes between Version 27 and Version 28 of expansion/gw16126

Timestamp:

06/11/2019 08:00:35 PM (5 years ago)

Author:

Tim Harvey

Comment:

added firmware section, explain ppp vs qmi, and use uci commands for openwrt configuration

expansion/gw16126

@@ -53 +53 @@
  * More information can be found online about these items, including this article [https://www.link-labs.com/blog/lte-e-drx-psm-explained-for-lte-m1 here]
 
+The SARA-R4 supports the following types of connections:
+ * QMI (using /dev/cdc-wdm0 and /sys/class/net/wwan0) (**recommended but requires firmware M0.10.00 or later**)
+ * PPP (using the TTY for AT commands and data) (not recommended as this requires dynamic configuration of the tty device due to USB enumeration order not being garunteed as well as configuration of chat scripts and does not allow concurant AT commands and network support)
+
 [=#sim]
 === CAT M1 SIM Support 
@@ -61 +65 @@
 * Activate the included SIM here: [https://hologram.io/docs/guide/connect/connect-device/]
 
-
- 
 [https://www.digikey.com/products/en?keywords=1477-1051-ND We have tested this Verizon SIM as well]. '''Note''' this SIM will not automatically work with the GW16126 because the GW16126 is not end device certified with Verizon. Customers will need to work with their particular cellular carrier to get test SIMs that will work properly with the modem. Certification should also be discussed at the same time.
 
 One may also want to disable system updates that may run in the background on the OS that is being used to avoid any overages on the SIM data plan.
+
+
+[=#firmware]
+=== Firmware
+see [https://www.u-blox.com/docs/UBX-16029218 UBX-16029218 SARA-R4/N4 series System Integration Manual] for firmware update details.
+
+The SARA-R4 Firmware can be updated in the following ways:
+ - Firmware update Over AT (FOAT): Allows upgrading of the module firmware via binary 'delta' files over the AT interface using AT commands.
+ - Firmware update Over The Air (uFOTA): Allows upgrading the module firmware via binary 'delta' files over the air interface based on u-blox client/server solution (uFOTA), using Lightweight M2M (LWM2M). This requires the customer creats a campaign with u-blox to identify IMEI's of modems and access to the u-blox uFOTA server
+ - EasyFlash is a windows application that allows flashing of 'full' firmware images
+
+You can use the {{{ATI}}} command on the AT tty to determine the firmware version (see [#at AT commands below])
 
 [=#software]
@@ -100 +114 @@
 ''' Note, because this modem uses raw-ip, the IP from the provider will not automatically be applied to the interface. The provider will give an IP and then it must manually be applied to the wwan0 interface.'''
 
+
+[=#at]
 ==== AT Commands
 For a detailed list of all AT commands see:
@@ -134 +150 @@
 # background process to read TTY responses
 cat $DEVICE &
+at() { echo -n -e "$1\r" > $DEVICE; }
 at "AT+COPS=2" # deregister from network
 at "AT+UMNOPROF=0" # set MNO to auto
@@ -351 +368 @@
 ===== OpenWrt
 Note that OpenWrt 18.06 or newer has support for this modem.
-{{{#!bash
-config interface 'wan'
-        option ifname 'wwan0'
-        option proto 'qmi'
-        option apn      hologram
-        option device   '/dev/cdc-wdm0'
-        option autoconnect      0
-        option modes    lte
-}}}
+
+Example configurations:
+ * QMI (recommended):
+{{{#!bash
+# config wan
+uci set network.wan=interface
+uci set network.wan.ifname=wwan0
+uci set network.wan.proto=qmi
+uci set network.wan.timeout=90
+uci set network.wan.device=/dev/cdc-wdm0
+uci commit network
+}}}
+  - the default registration timeout of 10 seconds may not be enough so in the example above we have set it to 90 seconds.