mbed-os-example-cellular-TPB23 - This is an example based on mbed-os cellular APIs…

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Daniel Lee / Mbed OS mbed-os-example-cellular-TPB23

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

Need to check CodeZoo's s hardware a guide.
Need a CodeZoo's NBIoT board and development board.
Board picture & Jumper configure

462 320 320

And also can use with mbed application shield, as shown below.

320

Tested with

DISCO_L475VG_IOT01A - If you are in Korea, can buy here !
NUCLEO_F429ZI - If you are in Korea, can buy here !

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

main.cpp@6:5678c0b6f74e, 2018-05-10 (annotated)

Committer:: mbed_official
Date:: Thu May 10 05:17:02 2018 +0100
Revision:: 6:5678c0b6f74e
Parent:: 2:0f644d6045cf
Child:: 11:23ea0907186e

Merge pull request #63 from ARMmbed/adding_trace_support_and_bug_fixes



Added trace support.

.

Commit copied from https://github.com/ARMmbed/mbed-os-example-cellular

Who changed what in which revision?

User	Revision	Line number	New contents of line
mbed_official	0:4611f6cf2413	1	/*
mbed_official	0:4611f6cf2413	2	* Copyright (c) 2017 ARM Limited. All rights reserved.
mbed_official	0:4611f6cf2413	3	* SPDX-License-Identifier: Apache-2.0
mbed_official	0:4611f6cf2413	4	* Licensed under the Apache License, Version 2.0 (the License); you may
mbed_official	0:4611f6cf2413	5	* not use this file except in compliance with the License.
mbed_official	0:4611f6cf2413	6	* You may obtain a copy of the License at
mbed_official	0:4611f6cf2413	7	*
mbed_official	0:4611f6cf2413	8	* http://www.apache.org/licenses/LICENSE-2.0
mbed_official	0:4611f6cf2413	9	*
mbed_official	0:4611f6cf2413	10	* Unless required by applicable law or agreed to in writing, software
mbed_official	0:4611f6cf2413	11	* distributed under the License is distributed on an AS IS BASIS, WITHOUT
mbed_official	0:4611f6cf2413	12	* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official	0:4611f6cf2413	13	* See the License for the specific language governing permissions and
mbed_official	0:4611f6cf2413	14	* limitations under the License.
mbed_official	0:4611f6cf2413	15	*/
mbed_official	0:4611f6cf2413	16
mbed_official	0:4611f6cf2413	17	#include "mbed.h"
mbed_official	0:4611f6cf2413	18	#include "common_functions.h"
mbed_official	0:4611f6cf2413	19	#include "UDPSocket.h"
mbed_official	0:4611f6cf2413	20	#include "OnboardCellularInterface.h"
mbed_official	6:5678c0b6f74e	21	#include "CellularLog.h"
mbed_official	0:4611f6cf2413	22
mbed_official	0:4611f6cf2413	23	#define UDP 0
mbed_official	0:4611f6cf2413	24	#define TCP 1
mbed_official	0:4611f6cf2413	25
mbed_official	0:4611f6cf2413	26	// SIM pin code goes here
mbed_official	0:4611f6cf2413	27	#ifndef MBED_CONF_APP_SIM_PIN_CODE
mbed_official	0:4611f6cf2413	28	# define MBED_CONF_APP_SIM_PIN_CODE "1234"
mbed_official	0:4611f6cf2413	29	#endif
mbed_official	0:4611f6cf2413	30
mbed_official	0:4611f6cf2413	31	#ifndef MBED_CONF_APP_APN
mbed_official	0:4611f6cf2413	32	# define MBED_CONF_APP_APN "internet"
mbed_official	0:4611f6cf2413	33	#endif
mbed_official	0:4611f6cf2413	34	#ifndef MBED_CONF_APP_USERNAME
mbed_official	0:4611f6cf2413	35	# define MBED_CONF_APP_USERNAME NULL
mbed_official	0:4611f6cf2413	36	#endif
mbed_official	0:4611f6cf2413	37	#ifndef MBED_CONF_APP_PASSWORD
mbed_official	0:4611f6cf2413	38	# define MBED_CONF_APP_PASSWORD NULL
mbed_official	0:4611f6cf2413	39	#endif
mbed_official	0:4611f6cf2413	40
mbed_official	0:4611f6cf2413	41	// Number of retries /
mbed_official	0:4611f6cf2413	42	#define RETRY_COUNT 3
mbed_official	0:4611f6cf2413	43
mbed_official	0:4611f6cf2413	44
mbed_official	0:4611f6cf2413	45
mbed_official	0:4611f6cf2413	46	// CellularInterface object
mbed_official	0:4611f6cf2413	47	OnboardCellularInterface iface;
mbed_official	0:4611f6cf2413	48
mbed_official	0:4611f6cf2413	49	// Echo server hostname
mbed_official	2:0f644d6045cf	50	const char *host_name = "echo.mbedcloudtesting.com";
mbed_official	0:4611f6cf2413	51
mbed_official	0:4611f6cf2413	52	// Echo server port (same for TCP and UDP)
mbed_official	0:4611f6cf2413	53	const int port = 7;
mbed_official	0:4611f6cf2413	54
mbed_official	6:5678c0b6f74e	55	static rtos::Mutex trace_mutex;
mbed_official	6:5678c0b6f74e	56
mbed_official	6:5678c0b6f74e	57	#if MBED_CONF_MBED_TRACE_ENABLE
mbed_official	6:5678c0b6f74e	58	static void trace_wait()
mbed_official	6:5678c0b6f74e	59	{
mbed_official	6:5678c0b6f74e	60	trace_mutex.lock();
mbed_official	6:5678c0b6f74e	61	}
mbed_official	6:5678c0b6f74e	62
mbed_official	6:5678c0b6f74e	63	static void trace_release()
mbed_official	6:5678c0b6f74e	64	{
mbed_official	6:5678c0b6f74e	65	trace_mutex.unlock();
mbed_official	6:5678c0b6f74e	66	}
mbed_official	6:5678c0b6f74e	67
mbed_official	6:5678c0b6f74e	68	static char time_st[50];
mbed_official	6:5678c0b6f74e	69
mbed_official	6:5678c0b6f74e	70	static char* trace_time(size_t ss)
mbed_official	6:5678c0b6f74e	71	{
mbed_official	6:5678c0b6f74e	72	snprintf(time_st, 49, "[%08llums]", Kernel::get_ms_count());
mbed_official	6:5678c0b6f74e	73	return time_st;
mbed_official	6:5678c0b6f74e	74	}
mbed_official	6:5678c0b6f74e	75
mbed_official	6:5678c0b6f74e	76	static void trace_open()
mbed_official	6:5678c0b6f74e	77	{
mbed_official	6:5678c0b6f74e	78	mbed_trace_init();
mbed_official	6:5678c0b6f74e	79	mbed_trace_prefix_function_set( &trace_time );
mbed_official	6:5678c0b6f74e	80
mbed_official	6:5678c0b6f74e	81	mbed_trace_mutex_wait_function_set(trace_wait);
mbed_official	6:5678c0b6f74e	82	mbed_trace_mutex_release_function_set(trace_release);
mbed_official	6:5678c0b6f74e	83	}
mbed_official	6:5678c0b6f74e	84
mbed_official	6:5678c0b6f74e	85	static void trace_close()
mbed_official	6:5678c0b6f74e	86	{
mbed_official	6:5678c0b6f74e	87	mbed_trace_free();
mbed_official	6:5678c0b6f74e	88	}
mbed_official	6:5678c0b6f74e	89	#endif // #if MBED_CONF_MBED_TRACE_ENABLE
mbed_official	6:5678c0b6f74e	90
mbed_official	2:0f644d6045cf	91	Thread dot_thread(osPriorityNormal, 512);
mbed_official	0:4611f6cf2413	92
mbed_official	6:5678c0b6f74e	93	void print_function(const char *format, ...)
mbed_official	0:4611f6cf2413	94	{
mbed_official	6:5678c0b6f74e	95	trace_mutex.lock();
mbed_official	6:5678c0b6f74e	96	va_list arglist;
mbed_official	6:5678c0b6f74e	97	va_start( arglist, format );
mbed_official	6:5678c0b6f74e	98	vprintf(format, arglist);
mbed_official	6:5678c0b6f74e	99	va_end( arglist );
mbed_official	6:5678c0b6f74e	100	trace_mutex.unlock();
mbed_official	0:4611f6cf2413	101	}
mbed_official	0:4611f6cf2413	102
mbed_official	0:4611f6cf2413	103	void dot_event()
mbed_official	0:4611f6cf2413	104	{
mbed_official	0:4611f6cf2413	105	while (true) {
mbed_official	6:5678c0b6f74e	106	Thread::wait(4000);
mbed_official	0:4611f6cf2413	107	if (!iface.is_connected()) {
mbed_official	6:5678c0b6f74e	108	trace_mutex.lock();
mbed_official	6:5678c0b6f74e	109	printf(".");
mbed_official	6:5678c0b6f74e	110	fflush(stdout);
mbed_official	6:5678c0b6f74e	111	trace_mutex.unlock();
mbed_official	0:4611f6cf2413	112	} else {
mbed_official	0:4611f6cf2413	113	break;
mbed_official	0:4611f6cf2413	114	}
mbed_official	0:4611f6cf2413	115	}
mbed_official	0:4611f6cf2413	116	}
mbed_official	0:4611f6cf2413	117
mbed_official	0:4611f6cf2413	118	/**
mbed_official	0:4611f6cf2413	119	* Connects to the Cellular Network
mbed_official	0:4611f6cf2413	120	*/
mbed_official	0:4611f6cf2413	121	nsapi_error_t do_connect()
mbed_official	0:4611f6cf2413	122	{
mbed_official	6:5678c0b6f74e	123	nsapi_error_t retcode = NSAPI_ERROR_OK;
mbed_official	0:4611f6cf2413	124	uint8_t retry_counter = 0;
mbed_official	0:4611f6cf2413	125
mbed_official	0:4611f6cf2413	126	while (!iface.is_connected()) {
mbed_official	0:4611f6cf2413	127	retcode = iface.connect();
mbed_official	0:4611f6cf2413	128	if (retcode == NSAPI_ERROR_AUTH_FAILURE) {
mbed_official	0:4611f6cf2413	129	print_function("\n\nAuthentication Failure. Exiting application\n");
mbed_official	6:5678c0b6f74e	130	} else if (retcode == NSAPI_ERROR_OK) {
mbed_official	6:5678c0b6f74e	131	print_function("\n\nConnection Established.\n");
mbed_official	6:5678c0b6f74e	132	} else if (retry_counter > RETRY_COUNT) {
mbed_official	6:5678c0b6f74e	133	print_function("\n\nFatal connection failure: %d\n", retcode);
mbed_official	6:5678c0b6f74e	134	} else {
mbed_official	6:5678c0b6f74e	135	print_function("\n\nCouldn't connect: %d, will retry\n", retcode);
mbed_official	0:4611f6cf2413	136	retry_counter++;
mbed_official	0:4611f6cf2413	137	continue;
mbed_official	0:4611f6cf2413	138	}
mbed_official	0:4611f6cf2413	139	break;
mbed_official	0:4611f6cf2413	140	}
mbed_official	6:5678c0b6f74e	141	return retcode;
mbed_official	0:4611f6cf2413	142	}
mbed_official	0:4611f6cf2413	143
mbed_official	0:4611f6cf2413	144	/**
mbed_official	0:4611f6cf2413	145	* Opens a UDP or a TCP socket with the given echo server and performs an echo
mbed_official	0:4611f6cf2413	146	* transaction retrieving current.
mbed_official	0:4611f6cf2413	147	*/
mbed_official	0:4611f6cf2413	148	nsapi_error_t test_send_recv()
mbed_official	0:4611f6cf2413	149	{
mbed_official	0:4611f6cf2413	150	nsapi_size_or_error_t retcode;
mbed_official	0:4611f6cf2413	151	#if MBED_CONF_APP_SOCK_TYPE == TCP
mbed_official	0:4611f6cf2413	152	TCPSocket sock;
mbed_official	0:4611f6cf2413	153	#else
mbed_official	0:4611f6cf2413	154	UDPSocket sock;
mbed_official	0:4611f6cf2413	155	#endif
mbed_official	0:4611f6cf2413	156
mbed_official	0:4611f6cf2413	157	retcode = sock.open(&iface);
mbed_official	0:4611f6cf2413	158	if (retcode != NSAPI_ERROR_OK) {
mbed_official	6:5678c0b6f74e	159	print_function("UDPSocket.open() fails, code: %d\n", retcode);
mbed_official	0:4611f6cf2413	160	return -1;
mbed_official	0:4611f6cf2413	161	}
mbed_official	0:4611f6cf2413	162
mbed_official	0:4611f6cf2413	163	SocketAddress sock_addr;
mbed_official	0:4611f6cf2413	164	retcode = iface.gethostbyname(host_name, &sock_addr);
mbed_official	0:4611f6cf2413	165	if (retcode != NSAPI_ERROR_OK) {
mbed_official	6:5678c0b6f74e	166	print_function("Couldn't resolve remote host: %s, code: %d\n", host_name, retcode);
mbed_official	0:4611f6cf2413	167	return -1;
mbed_official	0:4611f6cf2413	168	}
mbed_official	0:4611f6cf2413	169
mbed_official	0:4611f6cf2413	170	sock_addr.set_port(port);
mbed_official	0:4611f6cf2413	171
mbed_official	0:4611f6cf2413	172	sock.set_timeout(15000);
mbed_official	0:4611f6cf2413	173	int n = 0;
mbed_official	0:4611f6cf2413	174	const char *echo_string = "TEST";
mbed_official	0:4611f6cf2413	175	char recv_buf[4];
mbed_official	0:4611f6cf2413	176	#if MBED_CONF_APP_SOCK_TYPE == TCP
mbed_official	0:4611f6cf2413	177	retcode = sock.connect(sock_addr);
mbed_official	0:4611f6cf2413	178	if (retcode < 0) {
mbed_official	6:5678c0b6f74e	179	print_function("TCPSocket.connect() fails, code: %d\n", retcode);
mbed_official	0:4611f6cf2413	180	return -1;
mbed_official	0:4611f6cf2413	181	} else {
mbed_official	6:5678c0b6f74e	182	print_function("TCP: connected with %s server\n", host_name);
mbed_official	0:4611f6cf2413	183	}
mbed_official	0:4611f6cf2413	184	retcode = sock.send((void*) echo_string, sizeof(echo_string));
mbed_official	0:4611f6cf2413	185	if (retcode < 0) {
mbed_official	6:5678c0b6f74e	186	print_function("TCPSocket.send() fails, code: %d\n", retcode);
mbed_official	0:4611f6cf2413	187	return -1;
mbed_official	0:4611f6cf2413	188	} else {
mbed_official	6:5678c0b6f74e	189	print_function("TCP: Sent %d Bytes to %s\n", retcode, host_name);
mbed_official	0:4611f6cf2413	190	}
mbed_official	0:4611f6cf2413	191
mbed_official	0:4611f6cf2413	192	n = sock.recv((void*) recv_buf, sizeof(recv_buf));
mbed_official	0:4611f6cf2413	193	#else
mbed_official	0:4611f6cf2413	194
mbed_official	0:4611f6cf2413	195	retcode = sock.sendto(sock_addr, (void*) echo_string, sizeof(echo_string));
mbed_official	0:4611f6cf2413	196	if (retcode < 0) {
mbed_official	6:5678c0b6f74e	197	print_function("UDPSocket.sendto() fails, code: %d\n", retcode);
mbed_official	0:4611f6cf2413	198	return -1;
mbed_official	0:4611f6cf2413	199	} else {
mbed_official	6:5678c0b6f74e	200	print_function("UDP: Sent %d Bytes to %s\n", retcode, host_name);
mbed_official	0:4611f6cf2413	201	}
mbed_official	0:4611f6cf2413	202
mbed_official	0:4611f6cf2413	203	n = sock.recvfrom(&sock_addr, (void*) recv_buf, sizeof(recv_buf));
mbed_official	0:4611f6cf2413	204	#endif
mbed_official	0:4611f6cf2413	205
mbed_official	0:4611f6cf2413	206	sock.close();
mbed_official	0:4611f6cf2413	207
mbed_official	0:4611f6cf2413	208	if (n > 0) {
mbed_official	6:5678c0b6f74e	209	print_function("Received from echo server %d Bytes\n", n);
mbed_official	0:4611f6cf2413	210	return 0;
mbed_official	0:4611f6cf2413	211	}
mbed_official	0:4611f6cf2413	212
mbed_official	0:4611f6cf2413	213	return -1;
mbed_official	0:4611f6cf2413	214	}
mbed_official	0:4611f6cf2413	215
mbed_official	0:4611f6cf2413	216	int main()
mbed_official	0:4611f6cf2413	217	{
mbed_official	6:5678c0b6f74e	218	print_function("\n\nmbed-os-example-cellular\n");
mbed_official	6:5678c0b6f74e	219	print_function("Establishing connection\n");
mbed_official	6:5678c0b6f74e	220	#if MBED_CONF_MBED_TRACE_ENABLE
mbed_official	6:5678c0b6f74e	221	trace_open();
mbed_official	6:5678c0b6f74e	222	#else
mbed_official	6:5678c0b6f74e	223	dot_thread.start(dot_event);
mbed_official	6:5678c0b6f74e	224	#endif // #if MBED_CONF_MBED_TRACE_ENABLE
mbed_official	0:4611f6cf2413	225	/* Set Pin code for SIM card */
mbed_official	0:4611f6cf2413	226	iface.set_sim_pin(MBED_CONF_APP_SIM_PIN_CODE);
mbed_official	0:4611f6cf2413	227
mbed_official	6:5678c0b6f74e	228	/* Set network credentials here, e.g., APN */
mbed_official	0:4611f6cf2413	229	iface.set_credentials(MBED_CONF_APP_APN, MBED_CONF_APP_USERNAME, MBED_CONF_APP_PASSWORD);
mbed_official	0:4611f6cf2413	230
mbed_official	6:5678c0b6f74e	231	/* Set the modem debug on/off */
mbed_official	6:5678c0b6f74e	232	iface.modem_debug_on(MBED_CONF_APP_MODEM_TRACE);
mbed_official	6:5678c0b6f74e	233
mbed_official	6:5678c0b6f74e	234	nsapi_error_t retcode = NSAPI_ERROR_NO_CONNECTION;
mbed_official	0:4611f6cf2413	235
mbed_official	0:4611f6cf2413	236	/* Attempt to connect to a cellular network */
mbed_official	0:4611f6cf2413	237	if (do_connect() == NSAPI_ERROR_OK) {
mbed_official	6:5678c0b6f74e	238	retcode = test_send_recv();
mbed_official	0:4611f6cf2413	239	}
mbed_official	0:4611f6cf2413	240
mbed_official	6:5678c0b6f74e	241	if (retcode == NSAPI_ERROR_OK) {
mbed_official	6:5678c0b6f74e	242	print_function("\n\nSuccess. Exiting \n\n");
mbed_official	6:5678c0b6f74e	243	} else {
mbed_official	6:5678c0b6f74e	244	print_function("\n\nFailure. Exiting \n\n");
mbed_official	6:5678c0b6f74e	245	}
mbed_official	6:5678c0b6f74e	246	#if MBED_CONF_MBED_TRACE_ENABLE
mbed_official	6:5678c0b6f74e	247	trace_close();
mbed_official	6:5678c0b6f74e	248	#endif // #if MBED_CONF_MBED_TRACE_ENABLE
mbed_official	6:5678c0b6f74e	249
mbed_official	6:5678c0b6f74e	250	return 0;
mbed_official	0:4611f6cf2413	251	}
mbed_official	0:4611f6cf2413	252	// EOF

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Type:	Program
Mbed OS support:	Mbed OS
Created:	07 Aug 2019
Imports:	34
Forks:	0
Commits:	48
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main.cpp@6:5678c0b6f74e, 2018-05-10 (annotated)

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