Bremen Team - Hangar / SML2

Implemented first Hangar-Service

Dependencies:   CalibrateMagneto QuaternionMath

Fork of SML2 by TobyRich GmbH

LEDDriver.cpp@12:1632d7391453, 2015-03-13 (annotated)

Committer:
pvaibhav
Date:
Fri Mar 13 09:12:56 2015 +0000
Revision:
12:1632d7391453
Parent:
4:e759b8c756da
Child:
18:f51b1a94a6e2
Code reformatting

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pvaibhav 0:943820483318 1 #include "LEDDriver.h"
pvaibhav 0:943820483318 2 #include "mbed.h"
pvaibhav 1:c279bc3af90c 3 #define DEBUG "LEDDriver"
pvaibhav 0:943820483318 4 #include "Logger.h"
pvaibhav 0:943820483318 5 #include <cassert>
pvaibhav 0:943820483318 6
pvaibhav 12:1632d7391453 7 LEDDriver::LEDDriver(I2C &i2c) : I2CPeripheral(i2c, 0x60 /* I2C address of the LED controller */)
pvaibhav 12:1632d7391453 8 {
pvaibhav 0:943820483318 9 // cf. LP5562TME/NOPB datasheet page 14
pvaibhav 0:943820483318 10 // Supply 3.6V to VDD (hardware - done)
pvaibhav 0:943820483318 11 // Supply 1.8V to EN (hardware - done)
pvaibhav 0:943820483318 12 wait_ms(1); // wait 1 ms
pvaibhav 0:943820483318 13 write_reg(0x00, 0xC0); // chip_en to 1, log_en to 1
pvaibhav 0:943820483318 14 wait_us(500); // wait 500 usec
pvaibhav 0:943820483318 15 write_reg(0x08, 0x61); // set PWM freq high, enable power save mode, start internal clock
pvaibhav 0:943820483318 16 write_reg(0x70, 0x00); // configure all LEDs to be controlled from I2C registers
pvaibhav 12:1632d7391453 17
pvaibhav 0:943820483318 18 setColor(Colors::black);
pvaibhav 12:1632d7391453 19
pvaibhav 4:e759b8c756da 20 INFO("LED driver ready");
pvaibhav 0:943820483318 21 }
pvaibhav 0:943820483318 22
pvaibhav 12:1632d7391453 23 void LEDDriver::setColor(const uint8_t r, const uint8_t g, const uint8_t b)
pvaibhav 12:1632d7391453 24 {
pvaibhav 0:943820483318 25 write_reg(0x04, r);
pvaibhav 0:943820483318 26 write_reg(0x03, g);
pvaibhav 0:943820483318 27 write_reg(0x02, b);
pvaibhav 0:943820483318 28 }
pvaibhav 0:943820483318 29
pvaibhav 0:943820483318 30 void LEDDriver::setColor(const float r, const float g, const float b)
pvaibhav 0:943820483318 31 {
pvaibhav 0:943820483318 32 setColor(r * 255, g * 255, b * 255);
pvaibhav 0:943820483318 33 }
pvaibhav 0:943820483318 34
pvaibhav 0:943820483318 35 void LEDDriver::setColor(const Color color)
pvaibhav 0:943820483318 36 {
pvaibhav 0:943820483318 37 const uint8_t r = (color >> 16) & 0xff;
pvaibhav 0:943820483318 38 const uint8_t g = (color >> 8) & 0xff;
pvaibhav 0:943820483318 39 const uint8_t b = (color >> 0) & 0xff;
pvaibhav 0:943820483318 40 setColor(r, g, b);
pvaibhav 0:943820483318 41 }
pvaibhav 0:943820483318 42
pvaibhav 12:1632d7391453 43 LEDDriver& LEDDriver::operator=(const Color& c)
pvaibhav 12:1632d7391453 44 {
pvaibhav 0:943820483318 45 setColor(c);
pvaibhav 0:943820483318 46 return *this;
pvaibhav 0:943820483318 47 }
pvaibhav 0:943820483318 48
pvaibhav 12:1632d7391453 49 void LEDDriver::setOutputCurrent(const float mA)
pvaibhav 12:1632d7391453 50 {
pvaibhav 0:943820483318 51 assert(mA <= 25.5);
pvaibhav 0:943820483318 52 assert(mA >= 0.1);
pvaibhav 0:943820483318 53 write_reg(0x05, mA * 10);
pvaibhav 0:943820483318 54 write_reg(0x06, mA * 10);
pvaibhav 0:943820483318 55 write_reg(0x07, mA * 10);
pvaibhav 1:c279bc3af90c 56 INFO("Output current => %0.1f mA", mA);
pvaibhav 0:943820483318 57 }