Message sequence charts¶

The below message sequence chart shows the initialization of the LwM2M carrier library:

$msc { hscale = "1.1"; Application,"LwM2M carrier Library"; Application=>"LwM2M carrier Library" [label="lwm2m_carrier_init()"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_BSDLIB_INIT"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_CONNECTING"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_CONNECTED"]; Application<<"LwM2M carrier Library" [label="Success"]; Application=>"LwM2M carrier Library" [label="lwm2m_carrier_run()"]; |||; "LwM2M carrier Library" :> "LwM2M carrier Library" [label="(no return)"]; ...; }$

The following message sequence chart shows the bootstrap process:

$msc { hscale = "1.1"; Application,"LwM2M carrier Library"; |||; --- [label="Device is not bootstrapped yet"]; |||; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_DISCONNECTING"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_DISCONNECTED"]; "LwM2M carrier Library" rbox "LwM2M carrier Library" [label="Write keys to modem"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_CONNECTING"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_CONNECTED"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_BOOTSTRAPPED"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_LTE_READY"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_REGISTERED"]; }$

The following message sequence chart shows FOTA updates:

$msc { hscale = "1.1"; Application,"LwM2M carrier Library"; |||; --- [label="Carrier initiates modem update"]; |||; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_FOTA_START"]; ...; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_DISCONNECTING"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_DISCONNECTED"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_CONNECTING"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_CONNECTED"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_LTE_READY"]; Application<<="LwM2M carrier Library" [label="LWM2M_CARRIER_EVENT_REGISTERED"]; ...; }$