Alexandre Pirotte / Mbed 2 deprecated AS5048

cc

Dependencies:   mbed

Fork of AS5048 by Saxion Lectoraat MT

as5048spi.h@0:3edcf58e51e7, 2014-09-18 (annotated)

Committer:
JSpikker
Date:
Thu Sep 18 10:20:22 2014 +0000
Revision:
0:3edcf58e51e7
Child:
2:2958500883e0
Version 0.3: reads single sensor value, 10000 samples speed test at 10MHz SPI, writes data to local storage

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JSpikker 0:3edcf58e51e7 1 #include "mbed.h"
JSpikker 0:3edcf58e51e7 2 typedef enum {
JSpikker 0:3edcf58e51e7 3 AS_FLAG_PARITY = 0x8000,
JSpikker 0:3edcf58e51e7 4 AS_FLAG_READ = 0x4000,
JSpikker 0:3edcf58e51e7 5 } As5048Flag;
JSpikker 0:3edcf58e51e7 6
JSpikker 0:3edcf58e51e7 7 typedef enum {
JSpikker 0:3edcf58e51e7 8 AS_CMD_NOP = 0x0000,
JSpikker 0:3edcf58e51e7 9 AS_CMD_ERROR = 0x0001 | AS_FLAG_READ, // Reads error ireguster and clear error flags
JSpikker 0:3edcf58e51e7 10 AS_CMD_DIAGNOSTICS = 0x3FFD | AS_FLAG_READ, // Reads automatic gain control and diagnostics info
JSpikker 0:3edcf58e51e7 11 AS_CMD_MAGNITUDE = 0x3FFE | AS_FLAG_READ,
JSpikker 0:3edcf58e51e7 12
JSpikker 0:3edcf58e51e7 13 AS_CMD_ANGLE = 0x3FFF| AS_FLAG_PARITY | AS_FLAG_READ,
JSpikker 0:3edcf58e51e7 14 } As5048Command;
JSpikker 0:3edcf58e51e7 15
JSpikker 0:3edcf58e51e7 16
JSpikker 0:3edcf58e51e7 17
JSpikker 0:3edcf58e51e7 18 class As5048Spi
JSpikker 0:3edcf58e51e7 19 {
JSpikker 0:3edcf58e51e7 20 public:
JSpikker 0:3edcf58e51e7 21 As5048Spi(PinName mosi, PinName miso, PinName sclk, PinName chipselect, int nDevices = 1);
JSpikker 0:3edcf58e51e7 22 ~As5048Spi();
JSpikker 0:3edcf58e51e7 23
JSpikker 0:3edcf58e51e7 24 bool error(int device = -1);
JSpikker 0:3edcf58e51e7 25 void frequency(int frequency = 1000000);
JSpikker 0:3edcf58e51e7 26 const int* read(As5048Command command);
JSpikker 0:3edcf58e51e7 27 const int* read_sequential(As5048Command command);
JSpikker 0:3edcf58e51e7 28
JSpikker 0:3edcf58e51e7 29 const int* read_angle();
JSpikker 0:3edcf58e51e7 30 const int* read_angle_sequential();
JSpikker 0:3edcf58e51e7 31
JSpikker 0:3edcf58e51e7 32
JSpikker 0:3edcf58e51e7 33 static int mask(int sensor_result);
JSpikker 0:3edcf58e51e7 34
JSpikker 0:3edcf58e51e7 35 static bool parity_check(int sensor_result);
JSpikker 0:3edcf58e51e7 36 static int degrees(int sensor_result);
JSpikker 0:3edcf58e51e7 37 static int radian(int sensor_result);
JSpikker 0:3edcf58e51e7 38
JSpikker 0:3edcf58e51e7 39
JSpikker 0:3edcf58e51e7 40 protected:
JSpikker 0:3edcf58e51e7 41 int _nDevices;
JSpikker 0:3edcf58e51e7 42 DigitalOut _chipSelectN;
JSpikker 0:3edcf58e51e7 43 SPI _spi;
JSpikker 0:3edcf58e51e7 44
JSpikker 0:3edcf58e51e7 45 int* _readBuffer; // Stores the results of the last sequential read
JSpikker 0:3edcf58e51e7 46
JSpikker 0:3edcf58e51e7 47 int* _read(As5048Command command);
JSpikker 0:3edcf58e51e7 48 };
JSpikker 0:3edcf58e51e7 49