Diff: bx-adc.h

Revision:

19:4869b10a962e

Parent:

18:eb675df59c7f

--- a/bx-adc.h	Mon Jun 30 07:01:58 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,117 +0,0 @@
-#include "mbed.h"
-#include "pinmap.h"
- 
-
- 
- /** A class similar to AnalogIn, only faster, for LPC1768, LPC408X and KLxx
- *
- * AnalogIn does a single conversion when you read a value (actually several conversions and it takes the median of that).
- * This library runns the ADC conversion automatically in the background.
- * When read is called, it immediatly returns the last sampled value.
- *
- * LPC1768 / LPC4088
- * Using more ADC pins in continuous mode will decrease the conversion rate (LPC1768:200kHz/LPC4088:400kHz).
- * If you need to sample one pin very fast and sometimes also need to do AD conversions on another pin,
- * you can disable the continuous conversion on that ADC channel and still read its value.
- *
- * KLXX
- * Multiple Fast instances can be declared of which only ONE can be continuous (all others must be non-continuous).
- *
- * When continuous conversion is disabled, a read will block until the conversion is complete
- * (much like the regular AnalogIn library does).
- * Each ADC channel can be enabled/disabled separately.
- *
- * IMPORTANT : It does not play nicely with regular AnalogIn objects, so either use this library or AnalogIn, not both at the same time!!
- *
- * Example for the KLxx processors:
- * @code
- * // Print messages when the AnalogIn is greater than 50%
- *
- * #include "mbed.h"
- *
- * FastAnalogIn temperature(PTC2); //Fast continuous sampling on PTC2
- * FastAnalogIn speed(PTB3, 0);    //Fast non-continuous sampling on PTB3
- *
- * int main() {
- *     while(1) {
- *         if(temperature > 0.5) {
- *             printf("Too hot! (%f) at speed %f", temperature.read(), speed.read());
- *         }
- *     }
- * }
- * @endcode
- * Example for the LPC1768 processor:
- * @code
- * // Print messages when the AnalogIn is greater than 50%
- *
- * #include "mbed.h"
- *
- * FastAnalogIn temperature(p20);
- *
- * int main() {
- *     while(1) {
- *         if(temperature > 0.5) {
- *             printf("Too hot! (%f)", temperature.read());
- *         }
- *     }
- * }
- * @endcode
-*/
-class FastAnalogIn {
- 
-public:
-     /** Create a FastAnalogIn, connected to the specified pin
-     *
-     * @param pin AnalogIn pin to connect to
-     * @param enabled Enable the ADC channel (default = true)
-     */
-    FastAnalogIn( PinName pin, bool enabled = true );
-    
-    ~FastAnalogIn( void )
-    {
-        disable();
-    }
-    
-    /** Enable the ADC channel
-    *
-    * @param enabled Bool that is true for enable, false is equivalent to calling disable
-    */
-    void enable(bool enabled = true);
-    
-    /** Disable the ADC channel
-    *
-    * Disabling unused channels speeds up conversion in used channels. 
-    * When disabled you can still call read, that will do a single conversion (actually two since the first one always returns 0 for unknown reason).
-    * Then the function blocks until the value is read. This is handy when you sometimes needs a single conversion besides the automatic conversion
-    */
-    void disable( void );
-    
-    /** Returns the raw value
-    *
-    * @param return Unsigned integer with converted value
-    */
-    unsigned short read_u16( void );
-    
-    /** Returns the scaled value
-    *
-    * @param return Float with scaled converted value to 0.0-1.0
-    */
-    float read( void )
-    {
-        unsigned short value = read_u16();
-        return (float)value * (1.0f/65535.0f);
-    }
-    
-    /** An operator shorthand for read()
-    */
-    operator float() {
-        return read();
-    }
- 
-    
-private:
-    bool running;    
-    char ADCnumber;
-    uint32_t *datareg;
-};
-