BULME_AHEL20
LPC_EI_I2C_TEMP
Dependencies: mbed
Revision 0:d47654dea5c5, committed 2018-03-15
- Comitter:
- Lenschinki
- Date:
- Thu Mar 15 11:45:07 2018 +0000
- Commit message:
- FSST 15.03
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Mar 15 11:45:07 2018 +0000
@@ -0,0 +1,39 @@
+#include "mbed.h"
+
+I2C i2ca(p28,p27);
+Serial pc(USBTX,USBRX);
+
+int main() {
+ pc.baud(115200);
+ i2ca.frequency(400000);
+ pc.printf("Temperaturmessung \n");
+
+ i2ca.start();
+ i2ca.write(0x90);
+ i2ca.write(0x01);
+ i2ca.write(0x00);
+ i2ca.stop();
+
+ unsigned char msb, lsb;
+ int itemp;
+ float temp;
+
+ while(1) {
+ i2ca.start();
+ i2ca.write(0x90);
+ i2ca.write(0x00);
+
+ i2ca.start();
+ i2ca.write(0x91);
+ msb = i2ca.read(1);
+ lsb = i2ca.read(0);
+ i2ca.stop();
+
+ itemp = (msb <<8) + lsb;
+ temp = (float)itemp/256.0;
+
+ pc.printf("Temperatur: %8.3f Grad C \n",temp);
+
+ wait(1.0);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Mar 15 11:45:07 2018 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/aa5281ff4a02 \ No newline at end of file