Diff: main.cpp

Revision:

0:3f9b3f85f89b

diff -r 000000000000 -r 3f9b3f85f89b main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Oct 04 13:04:02 2011 +0000
@@ -0,0 +1,170 @@
+#include "mbed.h"
+#include "TextLCD.h"
+#include "SDFileSystem.h"
+#include "ConfigFile.h"
+#include "NTPClient.h"
+#include "EthernetNetIf.h"
+
+TextLCD lcd(p24, p26, p27, p28, p29, p30);
+SDFileSystem sd(p5, p6, p7, p8, "sd1") ;
+LocalFileSystem local("local");
+
+ConfigFile cfg;
+AnalogIn temp_in(p20);
+AnalogIn humid_in(p19);
+
+Ticker  in, write;
+
+char strTimeMsg[16];
+
+float r_temp, r_humid;
+NTPClient ntp;
+
+void dataWriting() {
+    FILE *fp;
+    //
+    lcd.cls();
+    if ( (fp = fopen("/sd1/env.txt","a")) == NULL ) {
+        lcd.printf("Open Failed. \n") ;
+        exit(0);
+    }
+    printf("%s,%6.2f,%6.2f\r\n",strTimeMsg,r_temp, r_humid);  
+    fprintf(fp,"%s,%5.3f,%5.3f\r\n",strTimeMsg,r_temp, r_humid);  
+    fclose(fp);
+}
+
+void UpdateLCD(){
+    
+    float temp,humid;
+    time_t ctTime;
+
+    temp = temp_in;
+    humid = humid_in;
+    
+    // r_temp = temp * 3.3 * 100 ;   // ---- (1)
+    r_temp =  temp * 55.0  ;   // ---- (2)
+    r_humid = humid * 3.3 * 100 ;   
+    
+    lcd.cls();
+    lcd.locate(1,1);
+    lcd.printf("%5.1f",r_temp);
+    lcd.locate(6,1);
+    lcd.putc(0xDf); 
+    lcd.putc(0x43);
+    
+    lcd.locate(9,1);
+    lcd.printf("%5.1f%%",r_humid);
+     
+    ctTime = time(NULL)+32400;
+    strftime(strTimeMsg,16,"%y/%m/%d %H:%M",localtime(&ctTime));
+
+    lcd.locate(0,0);
+    lcd.printf("%s",strTimeMsg);
+}
+
+/* ----- Set RTC by ConfigFile -----*/
+void setRTC_ConfFile()
+{
+    char *strData = "DATE";
+    char dvalue[16];
+    char *strTime = "TIME";
+    char tvalue[16];
+    int year, month;
+    struct tm ltime;
+    
+    if (!cfg.read("/local/datetime.cfg")) {
+        printf("Failure to read a configuration file.\n");
+    }
+
+    /*
+     * Get a configuration value.
+     */
+    if (cfg.getValue(strData, &dvalue[0], sizeof(dvalue))) {
+     
+    }
+    if (cfg.getValue(strTime, &tvalue[0], sizeof(tvalue))) {
+       
+    }
+    sscanf(dvalue,"%d/%d/%d",&year,&month,&ltime.tm_mday);
+    sscanf(tvalue,"%d:%d",&ltime.tm_hour,&ltime.tm_min);
+    
+    ltime.tm_year = year - 1900;
+    ltime.tm_mon =  month -1 ;
+    ltime.tm_sec = 0;
+ 
+    set_time(mktime(&ltime)-32400) ;
+    printf("[able to read a datetime.cfg]\r\n");
+}
+
+
+    
+/*  ----- Set RTC by NTP  ----- */
+void setRTC_NTP()
+{
+    char strNtpErrMsg[32] ;    
+    EthernetErr ethErr; 
+    EthernetNetIf eth;
+    
+    /* static ip 
+    EthernetNetIf eth( // (2)  -- static IP address 
+    IpAddr(192,168,0,20),     // IP Address
+    IpAddr(255,255,255,0),   // Subnet Mask
+    IpAddr(192,168,0,1),     // Default Gateway
+    IpAddr(192,168,0,1)      // DNS Server
+    ) ;
+    */
+    
+    
+    lcd.cls();
+    lcd.locate(0,0);
+    lcd.printf("Please wait...");
+    
+    ethErr = eth.setup() ;
+    
+    if( ethErr != ETH_OK )
+    {
+        printf("Error %d in setup.\r\n", ethErr);
+        lcd.locate(0,1);
+        lcd.printf("NW Setup Error.");
+    }
+    
+       
+    Host ntpsrv(IpAddr(), 123, "ntp.nict.jp") ;
+    //Host ntpsrv(IpAddr(), 123, "192.244.80.200");
+    NTPResult ntpResult = ntp.setTime(ntpsrv) ;
+    
+    if( ntpResult == NTP_OK ){
+        sprintf(strNtpErrMsg,"NTP Connect OK!");
+    }else if ( ntpResult == NTP_PRTCL ){
+        sprintf(strNtpErrMsg,"NTP Protocol error.") ;
+    }else if ( ntpResult == NTP_TIMEOUT ){
+        sprintf(strNtpErrMsg,"Connection timeout.");  
+    }else if ( ntpResult == NTP_DNS ){
+        sprintf(strNtpErrMsg,"Could not resolve DNS hostname.") ;
+    }else if ( ntpResult == NTP_PROCESSING ){
+        sprintf(strNtpErrMsg,"Processing.");
+    }else{
+        sprintf(strNtpErrMsg,"NTP Error.");
+    }
+    printf("[%s]\r\n",strNtpErrMsg);
+}
+
+
+int main() {
+    
+    // set RTC by ConfigFile
+    //setRTC_ConfFile() ;
+    
+    // set RTC by NTP
+    setRTC_NTP();
+    
+    lcd.cls();
+    lcd.locate(0,0);
+    lcd.printf("Please wait...");
+    
+    in.attach(&UpdateLCD,10);
+    write.attach(&dataWriting,300);
+        
+    while(1){        
+    }
+}