![](/media/cache/profiles/mypic_AeCA35r.jpg.50x50_q85.jpg)
Onboard CDS sensor sample for WIZnet IoT Shield
main.cpp
- Committer:
- hkjung
- Date:
- 2019-03-20
- Revision:
- 1:0d7ba45f12b1
- Parent:
- 0:5cd6077e0a8e
- Child:
- 2:d7c5df056a3b
File content as of revision 1:0d7ba45f12b1:
/* WIZnet IoT Shield Cat.M1 Sample code for Arm MBED * Copyright (c) 2019 WIZnet Co., Ltd. * SPDX-License-Identifier: Apache-2.0 */ /* * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * * See the License for the specific language governing permissions and * limitations under the License. * */ #include <string> #include "mbed.h" #define RET_OK 1 #define RET_NOK -1 #define DEBUG_ENABLE 1 #define DEBUG_DISABLE 0 #define ON 1 #define OFF 0 #define MAX_BUF_SIZE 1024 #define BG96_APN_PROTOCOL_IPv4 1 #define BG96_APN_PROTOCOL_IPv6 2 #define BG96_DEFAULT_TIMEOUT 1000 #define BG96_CONNECT_TIMEOUT 15000 #define BG96_SEND_TIMEOUT 500 #define BG96_RECV_TIMEOUT 500 #define BG96_APN_PROTOCOL BG96_APN_PROTOCOL_IPv6 #define BG96_DEFAULT_BAUD_RATE 115200 #define BG96_PARSER_DELIMITER "\r\n" #define CATM1_APN_SKT "lte-internet.sktelecom.com" #define CATM1_DEVICE_NAME_BG96 "BG96" #define DEVNAME CATM1_DEVICE_NAME_BG96 #define devlog(f_, ...) if(CATM1_DEVICE_DEBUG == DEBUG_ENABLE) { pc.printf("\r\n[%s] ", DEVNAME); pc.printf((f_), ##__VA_ARGS__); } #define myprintf(f_, ...) {pc.printf("\r\n[MAIN] "); pc.printf((f_), ##__VA_ARGS__);} /* Pin configuraiton */ // Cat.M1 #define MBED_CONF_IOTSHIELD_CATM1_TX D8 #define MBED_CONF_IOTSHIELD_CATM1_RX D2 #define MBED_CONF_IOTSHIELD_CATM1_RESET D7 #define MBED_CONF_IOTSHIELD_CATM1_PWRKEY D9 // Sensors #define MBED_CONF_IOTSHIELD_SENSOR_CDS A0 #define MBED_CONF_IOTSHIELD_SENSOR_TEMP A1 /* Debug message settings */ #define BG96_PARSER_DEBUG DEBUG_ENABLE #define CATM1_DEVICE_DEBUG DEBUG_ENABLE /* HTTP */ #define HTTP_STATUS_CODE_OK 200 // Sample HTTP URL: Weather info by Korea Meteorological Administration char request_url[] = "http://www.kma.go.kr/wid/queryDFSRSS.jsp?zone=4113552000"; // Functions: Module Status void waitCatM1Ready(void); int8_t setEchoStatus_BG96(bool onoff); int8_t getUsimStatus_BG96(void); int8_t getNetworkStatus_BG96(void); int8_t checknSetApn_BG96(const char * apn); int8_t getFirmwareVersion_BG96(char * version); // Functions: HTTP send & recv int8_t setHttpRequest_BG96(char * req, int len); int8_t sendHttpRequest_BG96(int timeout, int * rsp_code, int * content_len); int8_t getHttpResponse_BG96(int timeout, char * buf, int len); void dumpHttpRespones_BG96(char * buf); Serial pc(USBTX, USBRX); // USB debug UARTSerial *_serial; // Cat.M1 module ATCmdParser *_parser; DigitalOut _RESET_BG96(MBED_CONF_IOTSHIELD_CATM1_RESET); DigitalOut _PWRKEY_BG96(MBED_CONF_IOTSHIELD_CATM1_PWRKEY); void serialPcInit(void) { pc.baud(115200); pc.format(8, Serial::None, 1); } void serialDeviceInit(PinName tx, PinName rx, int baudrate) { _serial = new UARTSerial(tx, rx, baudrate); } void serialAtParserInit(const char *delimiter, bool debug_en) { _parser = new ATCmdParser(_serial); _parser->debug_on(debug_en); _parser->set_delimiter(delimiter); _parser->set_timeout(BG96_DEFAULT_TIMEOUT); } void catm1DeviceInit(void) { serialDeviceInit( MBED_CONF_IOTSHIELD_CATM1_TX, MBED_CONF_IOTSHIELD_CATM1_RX, BG96_DEFAULT_BAUD_RATE); serialAtParserInit( BG96_PARSER_DELIMITER, BG96_PARSER_DEBUG); } void catm1DeviceReset_BG96(void) { _RESET_BG96 = 1; _PWRKEY_BG96 = 1; wait_ms(300); _RESET_BG96 = 0; _PWRKEY_BG96 = 0; wait_ms(400); _RESET_BG96 = 1; wait_ms(1000); } // ---------------------------------------------------------------- // Main routine // ---------------------------------------------------------------- int main() { serialPcInit(); catm1DeviceInit(); myprintf("Waiting for Cat.M1 Module Ready...\r\n"); catm1DeviceReset_BG96(); waitCatM1Ready(); wait_ms(5000); myprintf("System Init Complete\r\n"); myprintf("WIZnet IoT Shield for Arm MBED"); myprintf("LTE Cat.M1 Version"); myprintf("================================================="); myprintf(">> Target Board: WIoT-QC01 (Quectel BG96)"); myprintf(">> Sample Code: HTTP Send & Recv"); myprintf("=================================================\r\n"); setEchoStatus_BG96(OFF); getUsimStatus_BG96(); getNetworkStatus_BG96(); checknSetApn_BG96(CATM1_APN_SKT); // Set HTTP request URL if(setHttpRequest_BG96(request_url, strlen(request_url)-1) != RET_OK) { myprintf("[HTTP] setHttpRequest failed\r\n"); while(1){;} } int http_response_code = 0; int http_response_len = 0; if(sendHttpRequest_BG96(20, &http_response_code, &http_response_len)) { if(http_response_code == HTTP_STATUS_CODE_OK) { myprintf("[HTTP] 200 OK, Response content length: %d\r\n", http_response_len); char * http_buf; http_buf = (char*)calloc(http_response_len+2, sizeof(char)); // memory allocation if(getHttpResponse_BG96(20, http_buf, http_response_len+2)) { dumpHttpRespones_BG96(http_buf); } free(http_buf); // release myprintf("[HTTP] getHttpResponse success\r\n"); } else { myprintf("[HTTP] sendHttpRequest failed - HTTP response code: %d\r\n", http_response_code); } } } // ---------------------------------------------------------------- // Functions: Cat.M1 Status // ---------------------------------------------------------------- void waitCatM1Ready(void) { while(1) { if(_parser->recv("RDY")) { myprintf("BG96 ready\r\n"); return ; } else if(_parser->send("AT") && _parser->recv("OK")) { myprintf("BG96 already available\r\n"); return ; } } } int8_t setEchoStatus_BG96(bool onoff) { int8_t ret = RET_NOK; char _buf[10]; sprintf((char *)_buf, "ATE%d", onoff); if(_parser->send(_buf) && _parser->recv("OK")) { devlog("Turn Echo %s success\r\n", onoff?"ON":"OFF"); ret = RET_OK; } else { devlog("Turn Echo %s failed\r\n", onoff?"ON":"OFF"); } return ret; } int8_t getUsimStatus_BG96(void) { int8_t ret = RET_NOK; _parser->send("AT+CPIN?"); if(_parser->recv("+CPIN: READY") && _parser->recv("OK")) { devlog("USIM Status: READY\r\n"); ret = RET_OK; } else { devlog("Retrieving USIM Status failed\r\n"); } return ret; } int8_t getNetworkStatus_BG96(void) { int8_t ret = RET_NOK; if(_parser->send("AT+QCDS") && _parser->recv("+QCDS: \"SRV\"") && _parser->recv("OK")) { devlog("Network Status: attached\r\n"); ret = RET_OK; } else if (_parser->send("AT+QCDS") && _parser->recv("+QCDS: \"LIMITED\"") && _parser->recv("OK")) { devlog("Network Status: limited\r\n"); ret = RET_OK; } else { devlog("Network Status: Error\r\n"); } return ret; } int8_t checknSetApn_BG96(const char * apn) // Configure Parameters of a TCP/IP Context { char resp_str[100]; uint16_t i = 0; char * search_pt; memset(resp_str, 0, sizeof(resp_str)); devlog("Checking APN...\r\n"); _parser->send("AT+QICSGP=1"); while(1) { _parser->read(&resp_str[i++], 1); search_pt = strstr(resp_str, "OK\r\n"); if (search_pt != 0) { break; } } search_pt = strstr(resp_str, apn); if (search_pt == 0) { devlog("Mismatched APN: %s\r\n", resp_str); devlog("Storing APN %s...\r\n", apn); if(!(_parser->send("AT+QICSGP=1,%d,\"%s\",\"\",\"\",0", BG96_APN_PROTOCOL, apn) && _parser->recv("OK"))) { return RET_NOK; // failed } } devlog("APN Check Done\r\n"); return RET_OK; } int8_t getFirmwareVersion_BG96(char * version) { int8_t ret = RET_NOK; if(_parser->send("AT+QGMR") && _parser->recv("%s\n", version) && _parser->recv("OK")) { ret = RET_OK; } return ret; } int8_t getImeiNumber_BG96(char * imei) { int8_t ret = RET_NOK; if(_parser->send("AT+CGSN") && _parser->recv("%s\n", imei) && _parser->recv("OK")) { ret = RET_OK; } return ret; } // ---------------------------------------------------------------- // Functions: Cat.M1 HTTP send & recv // ---------------------------------------------------------------- int8_t setHttpRequest_BG96(char * req, int len) { int8_t ret = RET_NOK; bool done = false; _parser->set_timeout(BG96_CONNECT_TIMEOUT); _parser->send("AT+QHTTPURL=%d,%d", len, 5); if( !done && _parser->recv("CONNECT\r\n") ) done = (_parser->write(req, len) <= 0); if( !done ) { done = (_parser->recv("OK")); if(done) { devlog("Set HTTP request URL success: %s\r\n", req); ret = RET_OK; } } _parser->set_timeout(BG96_DEFAULT_TIMEOUT); return ret; } int8_t sendHttpRequest_BG96(int timeout, int * rsp_code, int * content_len) { int8_t ret = RET_NOK; int err; _parser->set_timeout(BG96_DEFAULT_TIMEOUT + (timeout * 1000)); if( _parser->send("AT+QHTTPGET=%d", timeout) && _parser->recv("+QHTTPGET: %d,%d,%d\r\n", &err, rsp_code, content_len) && (err == 0)) { devlog("The HTTP request is sent and the response is successful\r\n"); ret = RET_OK; } _parser->set_timeout(BG96_DEFAULT_TIMEOUT); return ret; } int8_t getHttpResponse_BG96(int timeout, char * buf, int len) { int8_t ret = RET_NOK; bool done = false; if( _parser->send("AT+QHTTPREAD=%d", timeout) && _parser->recv("CONNECT\r\n")) { done = _parser->read(buf, len); } if(done) { if( _parser->recv("OK") && _parser->recv("+QHTTPREAD: 0")) { ret = RET_OK; } } return ret; } void dumpHttpRespones_BG96(char * buf) { myprintf("%s", buf); }