Mark Uckermann / NbAnalogIn

Fast AnalogIn module which asks for a single non blocking reading and causes and interrupt when done.

NbAnalogIn.h@1:2666729acca1, 2017-04-02 (annotated)

Committer:
dontknowhow
Date:
Sun Apr 02 11:16:24 2017 +0000
Revision:
1:2666729acca1
Parent:
0:058d32b78e5d
Child:
2:336af413f75c
IRQ handlers in class

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dontknowhow 0:058d32b78e5d 1 #include "mbed.h"
dontknowhow 0:058d32b78e5d 2
dontknowhow 0:058d32b78e5d 3 #ifndef NBANALOGIN_H
dontknowhow 0:058d32b78e5d 4 #define NBANALOGIN_H
dontknowhow 0:058d32b78e5d 5
dontknowhow 1:2666729acca1 6 #define ADC_BUF_SIZE 100
dontknowhow 1:2666729acca1 7
dontknowhow 0:058d32b78e5d 8 /** Library for non blocking ADC operation
dontknowhow 0:058d32b78e5d 9 */
dontknowhow 0:058d32b78e5d 10
dontknowhow 0:058d32b78e5d 11 class NbAnalogIn{
dontknowhow 0:058d32b78e5d 12 public:
dontknowhow 1:2666729acca1 13
dontknowhow 1:2666729acca1 14
dontknowhow 1:2666729acca1 15
dontknowhow 0:058d32b78e5d 16 /**
dontknowhow 0:058d32b78e5d 17 * Create a NbAnalogIn object, sets up ADC
dontknowhow 0:058d32b78e5d 18 */
dontknowhow 0:058d32b78e5d 19 NbAnalogIn();
dontknowhow 0:058d32b78e5d 20
dontknowhow 0:058d32b78e5d 21 /**
dontknowhow 0:058d32b78e5d 22 * does a single blocking read and returns a 12 bit output
dontknowhow 0:058d32b78e5d 23 */
dontknowhow 0:058d32b78e5d 24 unsigned int read();
dontknowhow 0:058d32b78e5d 25
dontknowhow 0:058d32b78e5d 26 /**
dontknowhow 0:058d32b78e5d 27 * sets the interrupt to fire when ADC is finished
dontknowhow 0:058d32b78e5d 28 */
dontknowhow 1:2666729acca1 29 void triggerConv();
dontknowhow 1:2666729acca1 30
dontknowhow 1:2666729acca1 31
dontknowhow 1:2666729acca1 32
dontknowhow 1:2666729acca1 33 bool readable();
dontknowhow 1:2666729acca1 34
dontknowhow 1:2666729acca1 35 int readNb();
dontknowhow 1:2666729acca1 36
dontknowhow 1:2666729acca1 37 static void irq();
dontknowhow 1:2666729acca1 38 static NbAnalogIn* handlers[2];
dontknowhow 1:2666729acca1 39 void handler( int adc_result );
dontknowhow 0:058d32b78e5d 40
dontknowhow 0:058d32b78e5d 41 private:
dontknowhow 0:058d32b78e5d 42
dontknowhow 1:2666729acca1 43 int buffer[ADC_BUF_SIZE];
dontknowhow 1:2666729acca1 44 int write_pos; // next position to be written to
dontknowhow 1:2666729acca1 45 int read_pos; // next position to be read from
dontknowhow 1:2666729acca1 46
dontknowhow 1:2666729acca1 47
dontknowhow 1:2666729acca1 48
dontknowhow 1:2666729acca1 49
dontknowhow 1:2666729acca1 50
dontknowhow 0:058d32b78e5d 51 };
dontknowhow 1:2666729acca1 52
dontknowhow 1:2666729acca1 53
dontknowhow 0:058d32b78e5d 54 #endif