Difference between revisions of "STM32F107VC/Using ADC"
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*[http://www.e-books.dk/ebooks/chapter.cfm?chapid=ED0029 Analog-digitalkonvertering] (e-books.dk) | *[http://www.e-books.dk/ebooks/chapter.cfm?chapid=ED0029 Analog-digitalkonvertering] (e-books.dk) | ||
=Software example= | =Software example= | ||
| − | *[http://mars.tekkom.dk/data/ad2.zip ad2.zip] | + | *[http://mars.tekkom.dk/data/ad2.zip ad2.zip] (Example using RTX task triggering ADC conversion 100 times a second) |
| + | *[http://mars.tekkom.dk/data/ad2.zip ad2timer.zip] (Same example as above. Just using timer 2 to trig ADC conversion 100 times a second) | ||
| + | |||
==LDR - Light Dependent Resistor== | ==LDR - Light Dependent Resistor== | ||
*[http://www.cypax.com/pdf/PGM5526x.pdf LDR Datasheet] (Loads PDF) | *[http://www.cypax.com/pdf/PGM5526x.pdf LDR Datasheet] (Loads PDF) | ||
Revision as of 14:53, 6 October 2011
Contents
Literature
- Analog-digitalkonvertering (e-books.dk)
Software example
- ad2.zip (Example using RTX task triggering ADC conversion 100 times a second)
- ad2timer.zip (Same example as above. Just using timer 2 to trig ADC conversion 100 times a second)
LDR - Light Dependent Resistor
- LDR Datasheet (Loads PDF)
The LDR is connected between GPIO port C bit 0 and GND. A 10K pull-up resistor to 3.3V also connected to GPIO port C bit 0
Sample output from COM port
Baudrate: 9600
POT = 3.292V| LDR = 0.80V | DEG = 26.7C| Vrefint = 1.2075V
POT = 3.292V| LDR = 0.80V | DEG = 26.6C| Vrefint = 1.2076V
POT = 3.292V| LDR = 0.80V | DEG = 26.8C| Vrefint = 1.2071V
POT = 3.294V| LDR = 0.80V | DEG = 26.6C| Vrefint = 1.2075V
POT = 3.293V| LDR = 0.80V | DEG = 26.6C| Vrefint = 1.2074V