Rope Gang / PololuLedStrip

Simple LM35 temperature sensor for adafruit neopixel

Fork of PololuLedStrip by David Grayson

PololuLedStrip.h@16:eaed541b08b0, 2013-03-01 (annotated)

Committer:
DavidEGrayson
Date:
Fri Mar 01 05:09:55 2013 +0000
Revision:
16:eaed541b08b0
Parent:
7:9a088f042ee0
Child:
18:34ba573573df
Fine tuned the fudge factors for the M3 at 96 MHz again.  I'm not sure why they were not well tuned.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DavidEGrayson 0:06475317f283 1 #include "mbed.h"
DavidEGrayson 0:06475317f283 2
DavidEGrayson 0:06475317f283 3 #ifndef _POLOLU_LED_STRIP_H
DavidEGrayson 0:06475317f283 4 #define _POLOLU_LED_STRIP_H
DavidEGrayson 0:06475317f283 5
DavidEGrayson 0:06475317f283 6 namespace Pololu
DavidEGrayson 0:06475317f283 7 {
DavidEGrayson 0:06475317f283 8 #ifndef _POLOLU_RGB_COLOR
DavidEGrayson 0:06475317f283 9 #define _POLOLU_RGB_COLOR
DavidEGrayson 1:102307d9b701 10
DavidEGrayson 1:102307d9b701 11 /** Represents an RGB color. */
DavidEGrayson 0:06475317f283 12 typedef struct rgb_color
DavidEGrayson 0:06475317f283 13 {
DavidEGrayson 1:102307d9b701 14 uint8_t red; /*!< A number between 0 and 255 that represents the brightness of the red component. */
DavidEGrayson 1:102307d9b701 15 uint8_t green; /*!< A number between 0 and 255 that represents the brightness of the green component. */
DavidEGrayson 1:102307d9b701 16 uint8_t blue; /*!< A number between 0 and 255 that represents the brightness of the blue component. */
DavidEGrayson 0:06475317f283 17 } rgb_color;
DavidEGrayson 0:06475317f283 18 #endif
DavidEGrayson 0:06475317f283 19
DavidEGrayson 0:06475317f283 20 extern "C" int led_strip_write_color(rgb_color *, volatile uint32_t * set, volatile uint32_t * clear, uint32_t mask);
DavidEGrayson 0:06475317f283 21
DavidEGrayson 1:102307d9b701 22 /** This class lets you control the
DavidEGrayson 1:102307d9b701 23 <a href="http://www.pololu.com/catalog/category/20">addressable RGB LED strips from Pololu</a>,
DavidEGrayson 1:102307d9b701 24 or any other LED strip based on the TM1804 chip. */
DavidEGrayson 0:06475317f283 25 class PololuLedStrip
DavidEGrayson 0:06475317f283 26 {
DavidEGrayson 0:06475317f283 27 gpio_t gpio;
DavidEGrayson 1:102307d9b701 28
DavidEGrayson 0:06475317f283 29 public:
DavidEGrayson 1:102307d9b701 30
DavidEGrayson 1:102307d9b701 31 /** This constructor lets you make an led strip object by specifying the pin name.
DavidEGrayson 1:102307d9b701 32 There are no restrictions on what pin you can choose.
DavidEGrayson 1:102307d9b701 33
DavidEGrayson 1:102307d9b701 34 Example:
DavidEGrayson 1:102307d9b701 35 @code
DavidEGrayson 1:102307d9b701 36 PololuLedStrip ledStrip(p8);
DavidEGrayson 1:102307d9b701 37 @endcode
DavidEGrayson 1:102307d9b701 38 */
DavidEGrayson 0:06475317f283 39 PololuLedStrip(PinName pin);
DavidEGrayson 1:102307d9b701 40
DavidEGrayson 1:102307d9b701 41 /** Writes the specified series of colors to the LED strip.
DavidEGrayson 1:102307d9b701 42 @param colors should be a pointer to an array of rgb_color structs.
DavidEGrayson 1:102307d9b701 43 @param count should be the number of colors to write.
DavidEGrayson 1:102307d9b701 44
DavidEGrayson 1:102307d9b701 45 The first color in the array will be written to the LED closest to the data input connector.
DavidEGrayson 1:102307d9b701 46 To update all the LEDs in the LED strip, count should be equal to or greater than the number of LEDs in the strip.
DavidEGrayson 1:102307d9b701 47 If count is less than the number of LEDs in the strip, then some LEDs near the end of the strip will not be updated.
DavidEGrayson 1:102307d9b701 48
DavidEGrayson 1:102307d9b701 49 The colors are sent in series and each color takes about 60 microseconds to send.
DavidEGrayson 1:102307d9b701 50 This function disables interrupts temporarily while it is running.
DavidEGrayson 1:102307d9b701 51 This function waits for over 10 us at the end before returning to allow the colors to take effect.
DavidEGrayson 1:102307d9b701 52 */
DavidEGrayson 0:06475317f283 53 void write(rgb_color * colors, unsigned int count);
DavidEGrayson 7:9a088f042ee0 54
DavidEGrayson 1:102307d9b701 55 /** This option defaults to <code>false</code>.
DavidEGrayson 1:102307d9b701 56 Setting this to true changes the behavior of the write function, making it enable interrupts
DavidEGrayson 1:102307d9b701 57 after each color is sent, about every 60 microseconds.
DavidEGrayson 1:102307d9b701 58 This allows your program to respond to interrupts faster, but makes it possible for an interrupt
DavidEGrayson 1:102307d9b701 59 that takes longer than 8 microseconds to screw up the transmission of colors to the LED strip.
DavidEGrayson 1:102307d9b701 60
DavidEGrayson 1:102307d9b701 61 Example:
DavidEGrayson 1:102307d9b701 62 @code
DavidEGrayson 1:102307d9b701 63 PololuLedStrip::interruptFriendly = true;
DavidEGrayson 1:102307d9b701 64 @endcode
DavidEGrayson 1:102307d9b701 65 */
DavidEGrayson 0:06475317f283 66 static bool interruptFriendly;
DavidEGrayson 7:9a088f042ee0 67
DavidEGrayson 7:9a088f042ee0 68 static void calculateDelays();
DavidEGrayson 0:06475317f283 69 };
DavidEGrayson 0:06475317f283 70 }
DavidEGrayson 0:06475317f283 71
DavidEGrayson 0:06475317f283 72 using namespace Pololu;
DavidEGrayson 0:06475317f283 73
DavidEGrayson 0:06475317f283 74 #endif