temperature measurement with FRDM-KL05Z and DS1621
Dependencies: gmc_devices mbed
Revision 0:608e5ac0189e, committed 2014-07-11
- Comitter:
- wbeaumont
- Date:
- Fri Jul 11 14:22:13 2014 +0000
- Commit message:
- NENEMNIX temperature readout , for details check tech doc
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gmc_devices.lib Fri Jul 11 14:22:13 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/wbeaumont/code/gmc_devices/#fabc4d3065cb
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Jul 11 14:22:13 2014 +0000
@@ -0,0 +1,86 @@
+#include "mbed.h"
+#include "ds1621.hpp"
+
+#if defined (TARGET_KL25Z) || defined (TARGET_KL46Z)
+ PinName const SDA = PTE25;
+ PinName const SCL = PTE24;
+#elif defined (TARGET_KL05Z)
+ PinName const SDA = PTB4;
+ PinName const SCL = PTB3;
+#else
+ #error TARGET NOT DEFINED
+#endif
+
+#define VERSION 25
+//#define DEBUGPF(x) printf((x));
+#define DEBUGPF(x)
+Serial pc(USBTX,USBRX);
+
+
+char c='.';
+void callback() {
+ // Note: you need to actually read from the serial to clear the RX interrupt
+
+ c = pc.getc();
+ printf("%c:",c );
+
+
+ }
+
+I2C i2cT(SDA, SCL);
+#define THIST 20
+#define NRSENS 2
+int main(void) {
+
+ i2cT.frequency(100000);
+ pc.attach(&callback);
+
+ DS1621 digT1(&i2cT,0x90);
+ DS1621 digT2(&i2cT,0x96);
+
+ DS1621* digT[NRSENS]={&digT1,&digT2};
+ float tmpsum[NRSENS];
+ float temphist[NRSENS][THIST];
+ float digTemp[NRSENS];
+ DEBUGPF("init hw done \n\r");
+ int lc=0;
+ while (true) {
+ for (int ns=0; ns<NRSENS; ns++) digT[ns]->init_meassure();
+ DEBUGPF("init meas ");
+ for (int ns=0; ns<NRSENS; ns++) digT[ns]->init_read();
+
+ wait(0.1);
+
+ for (int ns=0; ns<NRSENS; ns++){
+ digTemp[ns]= digT[ns]->read_T();
+ temphist[ns][lc]=digTemp[ns];
+ tmpsum[ns]=0;
+ for (int lc2=0; lc2 < THIST;lc2++) {
+ tmpsum[ns]+=temphist[ns][lc2];
+ }
+ tmpsum[ns]/=THIST;
+ }
+ switch (c) {
+ case 't' :
+ { for (int ns=0; ns<NRSENS; ns++) { printf("ch %03d %2.4f %2.4f ",ns, digTemp[ns], tmpsum[ns] );}
+ printf("\n\r" );
+
+ }
+ break;
+ case 'v' : printf("version: %02d compiled date %s time :%s \n\r",VERSION,__DATE__,__TIME__);
+ break;
+ case 'i' :
+ case 'h' :
+ printf("DS1621 readout\n\r");
+ printf("\tt: gives for each channel current temperture\n\r\t\tand average temperature over last 10 sampels, format:\n\r");
+ printf("\t\tt:ch 000 26.5000 26.5000 ch 001 26.0000 26.0000\n\r\tv gives version\n\r");
+ printf("(C) Wim Beaumont Universiteit Antwerpen Belgium\n\r");
+ printf(" mail : Wim.Beaumont_AT_uantwerpen.be\n\r");
+ break;
+ default: ;// nothing
+ };
+ c='.';
+ lc++; if (lc >= THIST) lc=0;
+
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Jul 11 14:22:13 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/024bf7f99721 \ No newline at end of file