This is an example based on mbed-os cellular APIs that demonstrates a TCP or UDP echo transaction with a public echo server. Included TPB23 NB-IoT module which is can use LGU+ in Korea.

This example is showing how to use the NB-IoT(SECOM TPB23 module) of LGU plus network in Korea. The NB-IoT module' seller provided a document on how to start based on Mbed OS 5.11. (Created by CodeZoo) This guide has been supported to the latest os version which included 5.12 ~ 5.15.

  • if you need specific version of Mbed OS, please revision of TPB23_Driver and check it out.
  • Pelion ready example code is here!

Requirement

462 320 320

320

Tested with

1. Import the application into your desktop

mbed import http://os.mbed.com/users/Daniel_Lee/code/mbed-os-example-cellular-TPB23/

cd mbed-os-example-cellular-TPB23

2. Compile and program

mbed compile -t <toolchain> -m <TARGET_BOARD>

(supported toolchains : GCC_ARM / ARM / IAR)

3. Download binary to a target board

4. Result

mbed-os-example-cellular


Built: Aug  7 2019, 06:10:47


[MAIN], plmn: NULL
Establishing connection
[00000001ms][INFO][CELL]: New CellularContext  (20000a08)
[00000002ms][INFO][CELL]: CellularContext plmn NULL
[00000003ms][INFO][CELL]: CellularContext connect
[00000036ms][INFO][CELL]: RSSI -69 dBm
[00000036ms][INFO][CELL]: Start connecting (timeout 1 s)
[00000087ms][INFO][CELL]: RSSI -69 dBm
[00000116ms][INFO][CELL]: Modem ready
[00000146ms][INFO][CELL]: RSSI -69 dBm
[00000146ms][INFO][CELL]: Setup SIM (timeout 1 s)
[00001233ms][INFO][CELL]: Looked up APN internet
[00001362ms][ERR ][CELL]: AT error code 50
[00001362ms][WARN][CELL]: Packet domain event reporting set failed!
[00001393ms][INFO][CELL]: RSSI -65 dBm
[00001393ms][INFO][CELL]: Network registration (timeout 180 s)
[00001443ms][INFO][CELL]: Registering network => Attaching network
[00001473ms][INFO][CELL]: RSSI -65 dBm
[00001473ms][INFO][CELL]: Attaching network (timeout 60 s)
[00001601ms][INFO][CELL]: Found PDP context 1
[00001649ms][INFO][CELL]: Activate PDP context 1


Connection Established.
[00001671ms][INFO][CELL]: Socket 0 open
[00001707ms][INFO][CELL]: Socket 1 open
[00001748ms][INFO][CELL]: Socket create id: 1
[00001883ms][INFO][CELL]: Socket 1 sent 43 bytes to 8.8.8.8 port 53
[00004311ms][INFO][CELL]: Socket 1 recv 59 bytes from 8.8.8.8 port 53
[00004331ms][INFO][CELL]: Close socket: 1 error: 0
[00004331ms][INFO][CELL]: Socket 1 closed
[00004373ms][INFO][CELL]: Socket create id: 1
TCP: connected with echo.mbedcloudtesting.com server
[00004448ms][INFO][CELL]: Socket 0 sent 4 bytes to 52.215.34.155 port 7
TCP: Sent 4 Bytes to echo.mbedcloudtesting.com
[00007560ms][INFO][CELL]: Socket 0 recv 4 bytes
[00007580ms][INFO][CELL]: Close socket: 1 error: 0
[00007580ms][INFO][CELL]: Socket 0 closed
Received from echo server 4 Bytes
[00007581ms][INFO][CELL]: CellularContext disconnect()
[00007630ms][INFO][CELL]: cb: CellularContext disconnected


Success. Exiting
Revision:
0:4611f6cf2413
Child:
1:ccaceb0dbbaf
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Jenkinsfile	Thu Mar 08 17:31:37 2018 +0000
@@ -0,0 +1,173 @@
+properties ([[$class: 'ParametersDefinitionProperty', parameterDefinitions: [
+  [$class: 'StringParameterDefinition', name: 'mbed_os_revision', defaultValue: 'mbed-os-5.4', description: 'Revision of mbed-os to build'],
+  [$class: 'BooleanParameterDefinition', name: 'smoke_test', defaultValue: true, description: 'Runs HW smoke tests on Cellular devices']
+  ]]])
+
+echo "Run smoke tests: ${params.smoke_test}"
+
+try {
+  echo "Verifying build with mbed-os version ${mbed_os_revision}"
+  env.MBED_OS_REVISION = "${mbed_os_revision}"
+} catch (err) {
+  def mbed_os_revision = "master"
+  echo "Verifying build with mbed-os version ${mbed_os_revision}"
+  env.MBED_OS_REVISION = "${mbed_os_revision}"
+}
+
+// Map RaaS instances to corresponding test suites
+def raas = [
+  "cellular_smoke_ublox_c027.json": "8072"
+  // Currently dragonfly is not supported by RAAS, skip it 
+  //"cellular_smoke_mts_dragonfly.json": "8072"
+  ]
+
+// List of targets with supported modem families
+def target_families = [
+  "UBLOX": ["UBLOX_C027"]
+  ]
+
+// Supported Modems
+def targets = [
+  "UBLOX_C027"
+]
+
+// Map toolchains to compilers
+def toolchains = [
+  ARM: "armcc",
+  GCC_ARM: "arm-none-eabi-gcc",
+  IAR: "iar_arm"
+  ]
+
+// supported socket tests
+def sockets = [
+  "udp",
+  "tcp"
+]
+
+def stepsForParallel = [:]
+
+// Jenkins pipeline does not support map.each, we need to use oldschool for loop
+for (int i = 0; i < target_families.size(); i++) {
+  for(int j = 0; j < toolchains.size(); j++) {
+    for(int k = 0; k < targets.size(); k++) {
+      for(int l = 0; l < sockets.size(); l++) {
+        def target_family = target_families.keySet().asList().get(i)
+        def allowed_target_type = target_families.get(target_family)
+        def target = targets.get(k)
+        def toolchain = toolchains.keySet().asList().get(j)
+        def compilerLabel = toolchains.get(toolchain)
+        def stepName = "${target} ${toolchain}"
+        def socket = sockets.get(l)
+
+        if(allowed_target_type.contains(target)) {
+          stepsForParallel[stepName] = buildStep(target_family, target, compilerLabel, toolchain, socket)
+        }
+      }
+    }
+  }
+}
+
+
+def parallelRunSmoke = [:]
+
+// Need to compare boolean against string value
+if ( params.smoke_test == true ) {
+  // Generate smoke tests based on suite amount
+  for(int i = 0; i < raas.size(); i++) {
+  	for(int j = 0; j < sockets.size(); j++) {
+    	def suite_to_run = raas.keySet().asList().get(i)
+    	def raasPort = raas.get(suite_to_run)
+    	def socket = sockets.get(j)
+    
+    	// Parallel execution needs unique step names. Remove .json file ending.
+    	def smokeStep = "${raasPort} ${suite_to_run.substring(0, suite_to_run.indexOf('.'))}"
+    	parallelRunSmoke[smokeStep] = run_smoke(target_families, raasPort, suite_to_run, toolchains, targets, socket)
+    }
+  }
+}
+
+timestamps {
+  parallel stepsForParallel
+  parallel parallelRunSmoke
+}
+
+def buildStep(target_family, target, compilerLabel, toolchain, socket) {
+  return {
+    stage ("${target_family}_${target}_${compilerLabel}") {
+      node ("${compilerLabel}") {
+        deleteDir()
+        dir("mbed-os-example-cellular") {
+          checkout scm
+          def config_file = "mbed_app.json"
+
+          // Activate traces
+          //execute("sed -i 's/\"mbed-trace.enable\": false/\"mbed-trace.enable\": true/' ${config_file}")
+
+          //change socket typembed_app.json
+
+
+          execute("sed -i 's/\"sock-type\": .*/\"sock-type\": \"${socket}\",/' ${config_file}")
+
+          // Set mbed-os to revision received as parameter
+          execute ("mbed deploy --protocol ssh")
+          //dir ("mbed-os") {
+          //  execute ("git checkout ${env.MBED_OS_REVISION}")
+          //}
+
+          execute ("mbed compile --build out/${target}_${toolchain}/ -m ${target} -t ${toolchain} -c --app-config ${config_file}")
+        }
+        stash name: "${target}_${toolchain}_${socket}", includes: '**/mbed-os-example-cellular.bin'
+        archive '**/mbed-os-example-cellular.bin'
+        step([$class: 'WsCleanup'])
+      }
+    }
+  }
+}
+
+def run_smoke(target_families, raasPort, suite_to_run, toolchains, targets, socket) {
+  return {
+    env.RAAS_USERNAME = "user"
+    env.RAAS_PASSWORD = "user"
+    // Remove .json from suite name
+    def suiteName = suite_to_run.substring(0, suite_to_run.indexOf('.'))
+    stage ("smoke_${raasPort}_${suiteName}") {
+      //node is actually the type of machine, i.e., mesh-test boild down to linux
+      node ("mesh-test") {
+        deleteDir()
+        dir("mbed-clitest") {
+          git "git@github.com:ARMmbed/mbed-clitest.git"
+          execute("git checkout master")
+          dir("mbed-clitest-suites") {
+            git "git@github.com:ARMmbed/mbed-clitest-suites.git"
+            execute("git submodule update --init --recursive")
+            execute("git all checkout master")
+            dir("cellular") {
+              execute("git checkout master")
+            }
+          }
+                
+          for (int i = 0; i < target_families.size(); i++) {
+            for(int j = 0; j < toolchains.size(); j++) {
+              for(int k = 0; k < targets.size(); k++) {
+            	 def target_family = target_families.keySet().asList().get(i)
+                 def allowed_target_type = target_families.get(target_family)
+                 def target = targets.get(k)
+                 def toolchain = toolchains.keySet().asList().get(j)
+
+                 if(allowed_target_type.contains(target)) {
+                    unstash "${target}_${toolchain}_${socket}"
+                  }
+              	}
+            }
+          }     
+          if ("${suiteName}" == "cellular_smoke_mts_dragonfly")  {
+            execute("python clitest.py --suitedir mbed-clitest-suites/suites/ --suite ${suite_to_run} --type hardware --reset hard --raas 62.44.193.186:${raasPort} --tcdir mbed-clitest-suites/cellular  --failure_return_value -vvv -w --log log_${raasPort}_${suiteName}")
+          } else {
+            execute("python clitest.py --suitedir mbed-clitest-suites/suites/ --suite ${suite_to_run} --type hardware --reset --raas 62.44.193.186:${raasPort} --tcdir mbed-clitest-suites/cellular  --failure_return_value -vvv -w --log log_${raasPort}_${suiteName}")
+          }
+         archive "log_${raasPort}_${suiteName}/**/*"
+        }
+      }
+    }
+  }
+}
\ No newline at end of file