diff options
Diffstat (limited to 'drivers/rgb.h')
| -rw-r--r-- | drivers/rgb.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/drivers/rgb.h b/drivers/rgb.h new file mode 100644 index 0000000..27d2276 --- /dev/null +++ b/drivers/rgb.h @@ -0,0 +1,143 @@ +//*****************************************************************************
+//
+// rgb.h - Prototypes for the evaluation board RGB LED driver.
+//
+// Copyright (c) 2012 Texas Instruments Incorporated. All rights reserved.
+// Software License Agreement
+//
+// Texas Instruments (TI) is supplying this software for use solely and
+// exclusively on TI's microcontroller products. The software is owned by
+// TI and/or its suppliers, and is protected under applicable copyright
+// laws. You may not combine this software with "viral" open-source
+// software in order to form a larger program.
+//
+// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
+// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
+// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
+// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
+// DAMAGES, FOR ANY REASON WHATSOEVER.
+//
+// This is part of revision 9453 of the EK-LM4F120XL Firmware Package.
+//
+//*****************************************************************************
+
+#ifndef __RGBLED_H__
+#define __RGBLED_H__
+
+//*****************************************************************************
+//
+// Defines for the hardware resources used by the pushbuttons.
+//
+// The switches are on the following ports/pins:
+//
+// PF1 - RED (632 nanometer)
+// PF2 - GREEN (518 nanometer)
+// PF3 - BLUE (465 nanometer)
+
+//
+// The RGB LED is tied up to 5V but since the lowest Vf is 1.75 we can still
+// use a General Purpose Timer in pulse out mode.
+//
+//*****************************************************************************
+
+//
+// Indexes into the array of colors
+//
+#define RED 0
+#define BLUE 2
+#define GREEN 1
+
+
+//
+// Ratio for percent of full on that should be "true" white.
+//
+#define RED_WHITE_BALANCE 0.497f
+#define GREEN_WHITE_BALANCE 0.6f
+#define BLUE_WHITE_BALANCE 1.0f
+
+//
+// GPIO, Timer, Peripheral, and Pin assignments for the colors
+//
+#define RED_GPIO_PERIPH SYSCTL_PERIPH_GPIOF
+#define RED_TIMER_PERIPH SYSCTL_PERIPH_TIMER0
+#define BLUE_GPIO_PERIPH SYSCTL_PERIPH_GPIOF
+#define BLUE_TIMER_PERIPH SYSCTL_PERIPH_TIMER1
+#define GREEN_GPIO_PERIPH SYSCTL_PERIPH_GPIOF
+#define GREEN_TIMER_PERIPH SYSCTL_PERIPH_TIMER1
+
+
+#define RED_GPIO_BASE GPIO_PORTF_BASE
+#define RED_TIMER_BASE TIMER0_BASE
+#define BLUE_GPIO_BASE GPIO_PORTF_BASE
+#define BLUE_TIMER_BASE TIMER1_BASE
+#define GREEN_GPIO_BASE GPIO_PORTF_BASE
+#define GREEN_TIMER_BASE TIMER1_BASE
+
+#define RED_GPIO_PIN GPIO_PIN_1
+#define BLUE_GPIO_PIN GPIO_PIN_2
+#define GREEN_GPIO_PIN GPIO_PIN_3
+
+
+#define RED_GPIO_PIN_CFG GPIO_PF1_T0CCP1
+#define BLUE_GPIO_PIN_CFG GPIO_PF2_T1CCP0
+#define GREEN_GPIO_PIN_CFG GPIO_PF3_T1CCP1
+
+#define RED_TIMER_CFG TIMER_CFG_B_PWM
+#define BLUE_TIMER_CFG TIMER_CFG_A_PWM
+#define GREEN_TIMER_CFG TIMER_CFG_B_PWM
+
+#define RED_TIMER TIMER_B
+#define BLUE_TIMER TIMER_A
+#define GREEN_TIMER TIMER_B
+
+
+//*****************************************************************************
+//
+// Useful macros
+//
+//*****************************************************************************
+
+//*****************************************************************************
+//
+// If building with a C++ compiler, make all of the definitions in this header
+// have a C binding.
+//
+//*****************************************************************************
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+//*****************************************************************************
+//
+// Functions exported from rgb.c
+//
+//*****************************************************************************
+extern void RGBInit(unsigned long ulEnable);
+
+extern void RGBEnable(void);
+extern void RGBDisable(void);
+extern void RGBSet(volatile unsigned long * pulRGBColor, float fIntensity);
+extern void RGBColorSet(volatile unsigned long * pulRGBColor);
+
+extern void RGBIntensitySet(float fIntensity);
+
+extern void RGBGet(unsigned long * pulRGBColor, float * pfIntensity);
+
+//*****************************************************************************
+//
+// Mark the end of the C bindings section for C++ compilers.
+//
+//*****************************************************************************
+#ifdef __cplusplus
+}
+#endif
+
+//*****************************************************************************
+//
+// Prototypes for the globals exported by this driver.
+//
+//*****************************************************************************
+
+#endif // __RGBLED_H__
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