3.2.6.7 RNWF System Service

The system service provides API's to set and get the system level details. The following table lists all the services exposed by the system service layer. The system service API prototype is as follows:

SYS_RNWF_RESULT_t SYS_RNWF_SYSTEM_SrvCtrl(SYS_RNWF_SYSTEM_SERVICE_t request, uint8_t *input)

The table below shows the various commands and options available for system service.

Table 3-28. System Service Options Table
Option/Command	Input	Remarks
`SYS_RNWF_SYSTEM_RESET`	None	Request/Trigger Reset the system
`SYS_RNWF_SYSTEM_ECHO_OFF`	None	Turn OFF the AT command Echo
`SYS_RNWF_SYSTEM_GET_MAN_ID`	Buffer array to read Manufacturer ID	Get the manufacturing ID
`SYS_RNWF_SYSTEM_SET_TIME_UNIX`	Time (String) in UNIX format	Set the sytem time in UNIX format
`SYS_RNWF_SYSTEM_SET_TIME_NTP`	Time (String) in NTP format	Set the system time in NTP format
`SYS_RNWF_SYSTEM_SET_TIME_STRING`	Time (String)	Set the system time in string (YYYY-MM-DDTHH:MM:SS.00Z) format
`SYS_RNWF_SYSTEM_SW_REV`	Buffer array to read Software Revision	Request Software Revision
`SYS_RNWF_SYSTEM_DEV_INFO`	Buffer array to read Device Info	Request Device Info
`SYS_RNWF_SYSTEM_SET_SNTP`	Server name (String)	Enable SNTP with given server URL
`SYS_RNWF_SYSTEM_GET_TIME`	Buffer array to read Time	Get the system time
`SYS_RNWF_SYSTEM_GET_CERT_LIST`	Buffer array to read Certification list	Get the available certificate list
`SYS_RNWF_SYSTEM_GET_KEY_LIST`	Buffer array to read Key list	Get the available private key list
`SYS_RNWF_SYSTEM_GET_WIFI_INFO`	Buffer array to read Wi-Fi Info	Get Wi-Fi configuration information
`SYS_RNWF_SYSTEM_GET_MQTT_INFO`	Buffer array to read MQTT Config Info	Get MQTT configuration Information

Following are few examples to use the system service API's

/*
    System Service application
*/

/* Application buffer */
uint8_t app_buf[SYS_RNWF_BUF_LEN_MAX];

void APP_Initialize ( void )
{
    /* Place the App state machine in its initial state. */
    appData.state = APP_STATE_INITIALIZE;
}

void APP_Tasks ( void )
{
    switch(appData.state)
    {
        case APP_STATE_INITIALIZE:
        {
            SYS_RNWF_IF_Init();
            appData.state = APP_STATE_REGISTER_CALLBACK;
            SYS_CONSOLE_PRINT("APP_STATE_INITIALIZE\r\n");
            break;
        }
        case APP_STATE_REGISTER_CALLBACK:
        {              
            SYS_RNWF_SYSTEM_SrvCtrl(SYS_RWWF_SYSTEM_GET_WIFI_INFO, app_buf);    
            SYS_CONSOLE_PRINT("Wi-Fi Info:- \r\n%s\n", app_buf);   
    
            SYS_RNWF_SYSTEM_SrvCtrl(SYS_RNWF_SYSTEM_GET_CERT_LIST, app_buf);    
            SYS_CONSOLE_PRINT("Certs on RNWF:- \r\n%s\n", app_buf);
    
            SYS_RNWF_SYSTEM_SrvCtrl(SYS_RNWF_SYSTEM_GET_KEY_LIST, app_buf);    
            SYS_CONSOLE_PRINT("Keys on RNWF:- \r\n%s\n", app_buf);
                                                                                
            SYS_RNWF_SYSTEM_SrvCtrl(SYS_RNWF_SYSTEM_SW_REV, app_buf);    
            SYS_CONSOLE_PRINT("%s\n", app_buf);
    
            SYS_RNWF_SYSTEM_SrvCtrl(SYS_RNWF_SYSTEM_DEV_INFO, app_buf);    
            SYS_CONSOLE_PRINT("%s\n", app_buf);  
              
            appData.state = APP_STATE_TASK;
            break;
        }
        case APP_STATE_TASK:
        {
            if(g_AppState == APP_CLOUD_UP)
            {
                CLOUD_STATE_MACHINE();
            }
            RNWF_EVENT_Handler();
            break;
        }
        default:
        {
            break;
        }
    }
}