PololuLedStrip from mickaeljkoster with support for K64F
Fork of PololuLedStrip by
PololuLedStrip.h@24:b88e97eb2e09, 2014-11-25 (annotated)
- Committer:
- Alegrowin
- Date:
- Tue Nov 25 20:31:11 2014 +0000
- Revision:
- 24:b88e97eb2e09
- Parent:
- 23:9d1b45daf607
Activate the K64F support
Who changed what in which revision?
User | Revision | Line number | New 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 | { |
Alegrowin | 23:9d1b45daf607 | 8 | #ifndef _POLOLU_RGB_COLOR |
Alegrowin | 23:9d1b45daf607 | 9 | #define _POLOLU_RGB_COLOR |
Alegrowin | 23:9d1b45daf607 | 10 | |
Alegrowin | 23:9d1b45daf607 | 11 | #ifndef _K64F |
Alegrowin | 24:b88e97eb2e09 | 12 | #define _K64F //Define this to use with K64F |
Alegrowin | 23:9d1b45daf607 | 13 | #endif |
Alegrowin | 23:9d1b45daf607 | 14 | |
Alegrowin | 23:9d1b45daf607 | 15 | /** Represents an RGB color. */ |
Alegrowin | 23:9d1b45daf607 | 16 | typedef struct rgb_color { |
Alegrowin | 23:9d1b45daf607 | 17 | uint8_t red; /*!< A number between 0 and 255 that represents the brightness of the red component. */ |
Alegrowin | 23:9d1b45daf607 | 18 | uint8_t green; /*!< A number between 0 and 255 that represents the brightness of the green component. */ |
Alegrowin | 23:9d1b45daf607 | 19 | uint8_t blue; /*!< A number between 0 and 255 that represents the brightness of the blue component. */ |
Alegrowin | 23:9d1b45daf607 | 20 | } rgb_color; |
Alegrowin | 23:9d1b45daf607 | 21 | #endif |
DavidEGrayson | 0:06475317f283 | 22 | |
Alegrowin | 23:9d1b45daf607 | 23 | #ifdef _K64F |
Alegrowin | 23:9d1b45daf607 | 24 | extern "C" int led_strip_write_color_K64F(rgb_color *, volatile uint32_t * set, volatile uint32_t * clear, uint32_t mask); |
Alegrowin | 23:9d1b45daf607 | 25 | #else |
Alegrowin | 23:9d1b45daf607 | 26 | extern "C" int led_strip_write_color(rgb_color *, volatile uint32_t * set, volatile uint32_t * clear, uint32_t mask); |
Alegrowin | 23:9d1b45daf607 | 27 | #endif |
Alegrowin | 23:9d1b45daf607 | 28 | |
Alegrowin | 23:9d1b45daf607 | 29 | /** This class lets you control the addressable RGB LED strips from Pololu</a>, |
Alegrowin | 23:9d1b45daf607 | 30 | or any other LED strip based on the TM1804 chip. */ |
Alegrowin | 23:9d1b45daf607 | 31 | class PololuLedStrip |
Alegrowin | 23:9d1b45daf607 | 32 | { |
Alegrowin | 23:9d1b45daf607 | 33 | gpio_t gpio; |
Alegrowin | 23:9d1b45daf607 | 34 | uint32_t mask; |
Alegrowin | 23:9d1b45daf607 | 35 | __IO uint32_t *reg_set; |
Alegrowin | 23:9d1b45daf607 | 36 | __IO uint32_t *reg_clr; |
Alegrowin | 23:9d1b45daf607 | 37 | |
Alegrowin | 23:9d1b45daf607 | 38 | public: |
Alegrowin | 23:9d1b45daf607 | 39 | |
Alegrowin | 23:9d1b45daf607 | 40 | /** This constructor lets you make an led strip object by specifying the pin name. |
Alegrowin | 23:9d1b45daf607 | 41 | There are no restrictions on what pin you can choose. |
DavidEGrayson | 0:06475317f283 | 42 | |
Alegrowin | 23:9d1b45daf607 | 43 | Example: |
Alegrowin | 23:9d1b45daf607 | 44 | @code |
Alegrowin | 23:9d1b45daf607 | 45 | PololuLedStrip ledStrip(p8); |
Alegrowin | 23:9d1b45daf607 | 46 | @endcode |
Alegrowin | 23:9d1b45daf607 | 47 | */ |
Alegrowin | 23:9d1b45daf607 | 48 | PololuLedStrip(PinName pin); |
Alegrowin | 23:9d1b45daf607 | 49 | |
Alegrowin | 23:9d1b45daf607 | 50 | /** Writes the specified series of colors to the LED strip. |
Alegrowin | 23:9d1b45daf607 | 51 | @param colors should be a pointer to an array of rgb_color structs. |
Alegrowin | 23:9d1b45daf607 | 52 | @param count should be the number of colors to write. |
Alegrowin | 23:9d1b45daf607 | 53 | |
Alegrowin | 23:9d1b45daf607 | 54 | The first color in the array will be written to the LED closest to the data input connector. |
Alegrowin | 23:9d1b45daf607 | 55 | To update all the LEDs in the LED strip, count should be equal to or greater than the number of LEDs in the strip. |
Alegrowin | 23:9d1b45daf607 | 56 | 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. |
Alegrowin | 23:9d1b45daf607 | 57 | |
Alegrowin | 23:9d1b45daf607 | 58 | The colors are sent in series and each color takes about 45 microseconds to send. |
Alegrowin | 23:9d1b45daf607 | 59 | This function disables interrupts temporarily while it is running. |
Alegrowin | 23:9d1b45daf607 | 60 | This function waits for over 10 us at the end before returning to allow the colors to take effect. |
Alegrowin | 23:9d1b45daf607 | 61 | */ |
Alegrowin | 23:9d1b45daf607 | 62 | void write(rgb_color * colors, unsigned int count); |
Alegrowin | 23:9d1b45daf607 | 63 | |
Alegrowin | 23:9d1b45daf607 | 64 | /** This option defaults to <code>false</code>. |
Alegrowin | 23:9d1b45daf607 | 65 | Setting this to true changes the behavior of the write function, making it enable interrupts |
Alegrowin | 23:9d1b45daf607 | 66 | after each color is sent, about every 60 microseconds. |
Alegrowin | 23:9d1b45daf607 | 67 | This allows your program to respond to interrupts faster, but makes it possible for an interrupt |
Alegrowin | 23:9d1b45daf607 | 68 | that takes longer than 8 microseconds to screw up the transmission of colors to the LED strip. |
Alegrowin | 23:9d1b45daf607 | 69 | |
Alegrowin | 23:9d1b45daf607 | 70 | Example: |
Alegrowin | 23:9d1b45daf607 | 71 | @code |
Alegrowin | 23:9d1b45daf607 | 72 | PololuLedStrip::interruptFriendly = true; |
Alegrowin | 23:9d1b45daf607 | 73 | @endcode |
Alegrowin | 23:9d1b45daf607 | 74 | */ |
Alegrowin | 23:9d1b45daf607 | 75 | static bool interruptFriendly; |
Alegrowin | 23:9d1b45daf607 | 76 | |
Alegrowin | 23:9d1b45daf607 | 77 | static void calculateDelays(); |
Alegrowin | 23:9d1b45daf607 | 78 | }; |
DavidEGrayson | 0:06475317f283 | 79 | } |
DavidEGrayson | 0:06475317f283 | 80 | |
DavidEGrayson | 0:06475317f283 | 81 | using namespace Pololu; |
DavidEGrayson | 0:06475317f283 | 82 | |
DavidEGrayson | 0:06475317f283 | 83 | #endif |