Tadao Iida
mbed/ARM 活用事例 第3章 SDカードを使ってファイルを操作するプログラムを作る
Dependencies: EthernetNetIf NTPClient_NetServices TextLCD mbed ConfigFile SDFileSystem
Revision 0:3f9b3f85f89b, committed 2011-10-04
- Comitter:
- sunifu
- Date:
- Tue Oct 04 13:04:02 2011 +0000
- Commit message:
Changed in this revision
diff -r 000000000000 -r 3f9b3f85f89b ConfigFile.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ConfigFile.lib Tue Oct 04 13:04:02 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/shintamainjp/code/ConfigFile/#f6ceafabe9f8
diff -r 000000000000 -r 3f9b3f85f89b EthernetNetIf.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/EthernetNetIf.lib Tue Oct 04 13:04:02 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/donatien/code/EthernetNetIf/#bc7df6da7589
diff -r 000000000000 -r 3f9b3f85f89b FATFileSystem.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/FATFileSystem.lib Tue Oct 04 13:04:02 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_unsupported/code/fatfilesystem/ \ No newline at end of file
diff -r 000000000000 -r 3f9b3f85f89b NTPClient.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NTPClient.lib Tue Oct 04 13:04:02 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/donatien/code/NTPClient/#7c3f1199256a
diff -r 000000000000 -r 3f9b3f85f89b SDFileSystem.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Tue Oct 04 13:04:02 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/simon/code/SDFileSystem/#b1ddfc9a9b25
diff -r 000000000000 -r 3f9b3f85f89b TextLCD.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TextLCD.lib Tue Oct 04 13:04:02 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/simon/code/TextLCD/#44f34c09bd37
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,<ime.tm_mday);
+ sscanf(tvalue,"%d:%d",<ime.tm_hour,<ime.tm_min);
+
+ ltime.tm_year = year - 1900;
+ ltime.tm_mon = month -1 ;
+ ltime.tm_sec = 0;
+
+ set_time(mktime(<ime)-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){
+ }
+}
diff -r 000000000000 -r 3f9b3f85f89b mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Oct 04 13:04:02 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912