This is an example based on mbed-os cellular APIs that demonstrates a TCP or UDP echo transaction with a public echo server. Especially, BG96 operation check based Mbed OS 5.11, tested via SK Telecom in Korea

This code could be access via Cat.M1(BG96 module) of SK telecom network in Korea. Need a WIZnet BG96 board and development board. Before using this code, must be checking your modem is authorized or not from SK telecom. This code is based on Mbed OS 5.11.5.

/media/uploads/Daniel_Lee/img_8560.jpg

Tested with

  • DISCOVERY_L485VG_IOT01A
  • K66F
  • K64F

1. Import the application into your desktop

 mbed import https://os.mbed.com/users/Daniel_Lee/code/mbed-os-example-cellular-BG96_os511/

 cd mbed-os-example-cellular-BG96_os511

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: Jun  4 2019, 13:45:53


[MAIN], plmn: (null)
Modem power on
Establishing connection
..

Connection Established.
TCP: connected with echo.mbedcloudtesting.com server
TCP: Sent 4 Bytes to echo.mbedcloudtesting.com
...Received from echo server 4 Bytes
...

Success. Exiting

5. Patched code

If need more information such as how to test, please look at https://os.mbed.com/teams/mbed-os-examples/code/mbed-os-example-cellular/.

Revision:
7:ad3e80a40359
Parent:
1:ccaceb0dbbaf
Child:
8:abfee2b3d29b
--- a/Jenkinsfile	Thu May 10 05:17:02 2018 +0100
+++ b/Jenkinsfile	Fri May 18 08:00:15 2018 +0100
@@ -22,16 +22,11 @@
   //"cellular_smoke_mtb_mts_dragonfly.json": "8119"
 ]
 
-// List of targets with supported modem families
-def target_families = [
-  "UBLOX": ["UBLOX_C027"],
-  "DRAGONFLY": ["MTB_MTS_DRAGONFLY"]
-]
-
 // Supported Modems
 def targets = [
   "UBLOX_C027",
-  "MTB_MTS_DRAGONFLY"
+  "MTB_MTS_DRAGONFLY",
+  "UBLOX_C030_U201"
 ]
 
 // Map toolchains to compilers
@@ -51,22 +46,16 @@
 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 i = 0; i < targets.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} ${toolchain}"
-        def socket = sockets.get(l)
+    for(int k = 0; k < sockets.size(); k++) {
+      def target = targets.get(i)
+      def toolchain = toolchains.keySet().asList().get(j)
+      def compilerLabel = toolchains.get(toolchain)
+      def stepName = "${target} ${toolchain}"
+      def socket = sockets.get(k)
 
-        if(allowed_target_type.contains(target)) {
-          stepsForParallel[stepName] = buildStep(target_family, target, compilerLabel, toolchain, socket)
-        }
-      }
+      stepsForParallel[stepName] = buildStep(target, compilerLabel, toolchain, socket)
     }
   }
 }
@@ -78,14 +67,14 @@
   echo "Running smoke tests"
   // 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} ${suite_to_run.substring(0, suite_to_run.indexOf('.'))}"
-    	parallelRunSmoke[smokeStep] = run_smoke(target_families, raasPort, suite_to_run, toolchains, targets, socket)
+    for(int j = 0; j < sockets.size(); j++) {
+      def suite_to_run = raas.keySet().asList().get(i)
+      def raasPort = raas.get(suite_to_run)
+      def socket = sockets.get(j)
+
+      // Parallel execution needs unique step names. Remove .json file ending.
+      def smokeStep = "${raasPort} ${suite_to_run.substring(0, suite_to_run.indexOf('.'))}"
+      parallelRunSmoke[smokeStep] = run_smoke(raasPort, suite_to_run, toolchains, targets, socket)
     }
   }
 } else {
@@ -97,21 +86,20 @@
   parallel parallelRunSmoke
 }
 
-def buildStep(target_family, target, compilerLabel, toolchain, socket) {
+def buildStep(target, compilerLabel, toolchain, socket) {
   return {
-    stage ("${target_family}_${target}_${compilerLabel}") {
+    stage ("${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/' ${config_file}")
+          if ("${target}" == "UBLOX_C030_U201") {
+            execute("sed -i 's/internet/JTM2M/' ${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
@@ -138,7 +126,7 @@
   }
 }
 
-def run_smoke(target_families, raasPort, suite_to_run, toolchains, targets, socket) {
+def run_smoke(raasPort, suite_to_run, toolchains, targets, socket) {
   return {
     env.RAAS_USERNAME = "user"
     env.RAAS_PASSWORD = "user"
@@ -160,18 +148,11 @@
             }
           }
                 
-          for (int i = 0; i < target_families.size(); i++) {
+          for (int i = 0; i < targets.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}_${socket}"
-                }
-              }
+              def target = targets.get(i)
+              def toolchain = toolchains.keySet().asList().get(j)
+              unstash "${target}_${toolchain}_${socket}"
             }
           }     
           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}")