MSS / Mbed 2 deprecated testSensor

I2C sensor test program, derived from testI2C program. Simple test for FXOS8700CQ, HIH6130, MAG3110, MMA8451Q, MMA8452Q, MPL3115A2, MAX44000, MAX44005, MAX44008, MAX30101 included beside simple I2C read/write from testI2C.

Dependencies:   FXOS8700CQ HIH6130 IS31SE5000 MAG3110 MAX44000 MAX44005 MAX44008 MMA8451Q MMA8452Q MPL3115A2 VEML6040 VEML6075 mbed vt100 LM75B FXAS21002 MAX30101 VCNL4020 VCNL4100

dumb_i2c.cpp@18:ee6f43cbfcc1, 2017-12-27 (annotated)

Committer:
Rhyme
Date:
Wed Dec 27 08:31:24 2017 +0000
Revision:
18:ee6f43cbfcc1
Parent:
0:d4bbd473a83c 
current saving at the end of 27-Dec-2017

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Rhyme 0:d4bbd473a83c 1 #include "mbed.h"
Rhyme 0:d4bbd473a83c 2 #include "dumb_i2c.h"
Rhyme 0:d4bbd473a83c 3
Rhyme 0:d4bbd473a83c 4 DUMB_I2C::DUMB_I2C(PinName sda, PinName scl, int addr) : m_i2c(sda, scl), m_addr(addr<<1) {
Rhyme 0:d4bbd473a83c 5 // activate the peripheral
Rhyme 0:d4bbd473a83c 6 freq = 100000 ; /* 100KHz */
Rhyme 0:d4bbd473a83c 7 m_i2c.frequency(freq) ;
Rhyme 0:d4bbd473a83c 8 }
Rhyme 0:d4bbd473a83c 9
Rhyme 0:d4bbd473a83c 10 DUMB_I2C::~DUMB_I2C() { }
Rhyme 0:d4bbd473a83c 11
Rhyme 0:d4bbd473a83c 12 uint8_t DUMB_I2C::address(void)
Rhyme 0:d4bbd473a83c 13 {
Rhyme 0:d4bbd473a83c 14 return( m_addr >> 1 ) ;
Rhyme 0:d4bbd473a83c 15 }
Rhyme 0:d4bbd473a83c 16
Rhyme 0:d4bbd473a83c 17 void DUMB_I2C::frequency(uint32_t f)
Rhyme 0:d4bbd473a83c 18 {
Rhyme 0:d4bbd473a83c 19 freq = f ;
Rhyme 0:d4bbd473a83c 20 m_i2c.frequency(freq) ;
Rhyme 0:d4bbd473a83c 21 }
Rhyme 0:d4bbd473a83c 22
Rhyme 0:d4bbd473a83c 23 uint32_t DUMB_I2C::frequency(void)
Rhyme 0:d4bbd473a83c 24 {
Rhyme 0:d4bbd473a83c 25 return(freq) ;
Rhyme 0:d4bbd473a83c 26 }
Rhyme 0:d4bbd473a83c 27
Rhyme 18:ee6f43cbfcc1 28 void DUMB_I2C::start(void)
Rhyme 18:ee6f43cbfcc1 29 {
Rhyme 18:ee6f43cbfcc1 30 m_i2c.start() ;
Rhyme 18:ee6f43cbfcc1 31 }
Rhyme 18:ee6f43cbfcc1 32
Rhyme 18:ee6f43cbfcc1 33 void DUMB_I2C::stop(void)
Rhyme 18:ee6f43cbfcc1 34 {
Rhyme 18:ee6f43cbfcc1 35 m_i2c.stop() ;
Rhyme 18:ee6f43cbfcc1 36 }
Rhyme 18:ee6f43cbfcc1 37
Rhyme 0:d4bbd473a83c 38 int DUMB_I2C::read(int addr, uint8_t *data, int len)
Rhyme 0:d4bbd473a83c 39 {
Rhyme 0:d4bbd473a83c 40 int result ;
Rhyme 0:d4bbd473a83c 41 result = readRegs(addr, data, len) ;
Rhyme 0:d4bbd473a83c 42 return( result ) ;
Rhyme 0:d4bbd473a83c 43 }
Rhyme 0:d4bbd473a83c 44
Rhyme 0:d4bbd473a83c 45 int DUMB_I2C::write(int addr, uint8_t *data, int len)
Rhyme 0:d4bbd473a83c 46 {
Rhyme 0:d4bbd473a83c 47 uint8_t *buf ;
Rhyme 0:d4bbd473a83c 48 int ack ;
Rhyme 0:d4bbd473a83c 49 buf = new uint8_t[len+1] ;
Rhyme 0:d4bbd473a83c 50 buf[0] = addr ;
Rhyme 0:d4bbd473a83c 51 for (int i = 0 ; i < len ; i++ ) {
Rhyme 0:d4bbd473a83c 52 buf[i+1] = data[i] ;
Rhyme 0:d4bbd473a83c 53 }
Rhyme 0:d4bbd473a83c 54 ack = writeRegs(buf, len+1) ;
Rhyme 0:d4bbd473a83c 55 delete buf ;
Rhyme 0:d4bbd473a83c 56 return( ack ) ;
Rhyme 0:d4bbd473a83c 57 }
Rhyme 0:d4bbd473a83c 58
Rhyme 0:d4bbd473a83c 59 int DUMB_I2C::readRegs(int addr, uint8_t * data, int len) {
Rhyme 0:d4bbd473a83c 60 int result ;
Rhyme 0:d4bbd473a83c 61 char t[1] = {addr};
Rhyme 0:d4bbd473a83c 62 m_i2c.write(m_addr, t, 1, true);
Rhyme 0:d4bbd473a83c 63 result = m_i2c.read(m_addr, (char *)data, len);
Rhyme 0:d4bbd473a83c 64 return( result ) ;
Rhyme 0:d4bbd473a83c 65 }
Rhyme 0:d4bbd473a83c 66
Rhyme 0:d4bbd473a83c 67 int DUMB_I2C::writeRegs(uint8_t * data, int len) {
Rhyme 0:d4bbd473a83c 68 int ack ;
Rhyme 0:d4bbd473a83c 69 ack = m_i2c.write(m_addr, (char *)data, len);
Rhyme 0:d4bbd473a83c 70 return( ack ) ;
Rhyme 0:d4bbd473a83c 71 }