Daniel Lee
This is an example based on mbed-os cellular APIs that demonstrates a TCP or UDP echo transaction with a public echo server.
This code is forked from https://os.mbed.com/teams/mbed-os-examples/code/mbed-os-example-cellular/
This is an example showing how to use Skywire board with LE910-x module.
In this example, I had used the LE910-EUG module for 4G communication. Mbed OS code wasn't changed for LE910-x, because the Telit' HE910 is included mainline code on Mbed OS already. HE910 and LE910 are most similar. Therefore you can use LE910 via HE910 driver. Please check to configure of mbed_app.json, and initialize code for Skywire board of main.cpp.
Open mbed_app.json, you need to define a UART for the MCU to communicate with the xE910 module.
"TELIT_HE910.tx" : "D1",
"TELIT_HE910.rx" : "D0",
"TELIT_HE910.provide-default" : true
If you are using Pelion CM, make the following settings:
"nsapi.default-cellular-apn" : "\"stream.co.uk\"",
"nsapi.default-cellular-username": "\"streamip\"",
"nsapi.default-cellular-password": "\"streamip\"",
For your information, please see Pelion Connectivity Quick start guide.
You can find Skywire sensor shield information though NimbeLink site.
Tested with
- DISCO_L475VG_IOT01A
- K64F
1. Import the application into your desktop:
mbed import https://os.mbed.com/users/Daniel_Lee/code/mbed-os-example-cellular-le910/ cd mbed-os-example-cellular-le910
2. Compile and program:
mbed compile -t GCC_ARM -m DISCO_L475VG_IOT01A
(supported toolchains : GCC_ARM / ARM / IAR)
3. Download binary to a target board
4. Result
mbed-os-example-cellular Built: Feb 7 2020, 07:02:27 Starting Skywire board with LE910-EUG Demo... Waiting for Skywire to Boot... Wait 15 seconds.. 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
Revision 26:348eec457e58, committed 2018-11-20
- Comitter:
- mbed_official
- Date:
- Tue Nov 20 09:45:32 2018 +0000
- Parent:
- 25:c891a7063581
- Child:
- 27:97054be1a741
- Commit message:
- Merge pull request #109 from ARMmbed/minor_fixes
Minor fixes, added disconnect and readme update.
.
Commit copied from https://github.com/ARMmbed/mbed-os-example-cellular
Changed in this revision
--- a/README.md Mon Nov 19 07:00:32 2018 +0000 +++ b/README.md Tue Nov 20 09:45:32 2018 +0000 @@ -6,11 +6,11 @@ This particular cellular application uses a cellular network and network-socket APIs that are part of [`mbed-os`](https://github.com/ARMmbed/mbed-os). -The program uses a [generic cellular modem driver](https://github.com/ARMmbed/mbed-os/tree/master/features/netsocket/cellular/generic_modem_driver) using an external IP stack (LWIP) standard 3GPP AT 27.007 AT commands to setup the cellular modem and registers to the network. +The program uses a [cellular modem driver](https://github.com/ARMmbed/mbed-os/tree/master/features/cellular/framework/API) using an external IP stack (LWIP) standard 3GPP AT 27.007 AT commands to setup the cellular modem and registers to the network. After registration, the driver opens a point-to-point protocol (PPP) pipe using LWIP with the cellular modem and connects to internet. This driver currently supports UART data connection type only between your cellular modem and MCU. -For more information on Arm Mbed OS cellular APIs and porting guide, please visit the [Mbed OS cellular API](https://os.mbed.com/docs/latest/reference/cellular-api.html) and [contributing documentation](https://os.mbed.com/docs/latest/reference/contributing-connectivity.html#cellularinterface). +For more information on Arm Mbed OS cellular APIs and porting guide, please visit the [Mbed OS cellular API](https://os.mbed.com/docs/latest/reference/cellular.html) and [contributing documentation](https://os.mbed.com/docs/latest/reference/contributing.html). ### Download the application @@ -88,11 +88,11 @@ ### Board support -The [generic cellular modem driver](https://github.com/ARMmbed/mbed-os/tree/master/features/netsocket/cellular/generic_modem_driver) this application uses was written using only a standard AT command set. It uses PPP with an Mbed-supported external IP stack. These abilities make the driver essentially generic, or nonvendor specific. However, this particular driver is for onboard-modem types. In other words, the modem exists on the Mbed Enabled target as opposed to plug-in modules (shields). For more details, please see our [Mbed OS cellular documentation](https://os.mbed.com/docs/latest/reference/cellular-api.html). +The [cellular modem driver](https://github.com/ARMmbed/mbed-os/tree/master/features/cellular/framework/API) in this example uses PPP with an Mbed-supported external IP stack. It supports targets when modem exists on the Mbed Enabled target as opposed to plug-in modules (shields). For more details, please see our [Mbed OS cellular documentation](https://os.mbed.com/docs/latest/reference/cellular-api.html). Currently supported boards with onboard modem chips are: -[u-blox C027](https://os.mbed.com/platforms/u-blox-C027/) +[u-blox C027](https://os.mbed.com/platforms/u-blox-C027/) [MultiTech MTS Dragonfly](https://os.mbed.com/platforms/MTS-Dragonfly/)
--- a/main.cpp Mon Nov 19 07:00:32 2018 +0000
+++ b/main.cpp Tue Nov 20 09:45:32 2018 +0000
@@ -105,7 +105,7 @@
void dot_event()
{
while (true) {
- Thread::wait(4000);
+ ThisThread::sleep_for(4000);
if (iface && iface->is_connected()) {
break;
} else {
@@ -244,13 +244,20 @@
retcode = test_send_recv();
}
+ if (iface->disconnect() != NSAPI_ERROR_OK) {
+ print_function("\n\n disconnect failed.\n\n");
+ }
+
if (retcode == NSAPI_ERROR_OK) {
print_function("\n\nSuccess. Exiting \n\n");
} else {
print_function("\n\nFailure. Exiting \n\n");
}
+
#if MBED_CONF_MBED_TRACE_ENABLE
trace_close();
+#else
+ dot_thread.terminate();
#endif // #if MBED_CONF_MBED_TRACE_ENABLE
return 0;
--- a/mbed_app.json Mon Nov 19 07:00:32 2018 +0000
+++ b/mbed_app.json Tue Nov 20 09:45:32 2018 +0000
@@ -33,7 +33,6 @@
},
"target_overrides": {
"*": {
- "target.features_add": ["LWIP"],
"mbed-trace.enable": false,
"lwip.ipv4-enabled": true,
"lwip.ethernet-enabled": false,