Header for the portable functions to interact with the HW of the display system. The functions must be implemented in the platform-specific code. More...

#include <stdint.h>

Data Structures
struct	rgb_color_t
	Structure to define an RGB color. More...

Macros
#define	PORT_REAR_PARKING_DISPLAY_ID 0

#define	PORT_DISPLAY_RGB_MAX_VALUE

#define	COLOR_RED

#define	COLOR_GREEN

#define	COLOR_BLUE

#define	COLOR_YELLOW

#define	COLOR_TURQUOISE

#define	COLOR_OFF (rgb_color_t){0, 0, 0}

Functions
void	port_display_init (uint32_t display_id)
	Configure the HW specifications of a given display. More...

void	port_display_set_rgb (uint32_t display_id, rgb_color_t color)
	Set the Capture/Compare register values for each channel of the RGB LED given a color. More...

Detailed Description

Header for the portable functions to interact with the HW of the display system. The functions must be implemented in the platform-specific code.

Author: Sistemas Digitales II

Date: 2025-01-01

Macro Definition Documentation

◆ COLOR_BLUE

#define COLOR_BLUE

Blue color

◆ COLOR_GREEN

#define COLOR_GREEN

Green color

◆ COLOR_OFF

#define COLOR_OFF (rgb_color_t){0, 0, 0}

Off color

◆ COLOR_RED

#define COLOR_RED

Red color

◆ COLOR_TURQUOISE

#define COLOR_TURQUOISE

Turquoise color

◆ COLOR_YELLOW

#define COLOR_YELLOW

Yellow color

◆ PORT_DISPLAY_RGB_MAX_VALUE

#define PORT_DISPLAY_RGB_MAX_VALUE

Maximum value for the RGB LED

◆ PORT_REAR_PARKING_DISPLAY_ID

#define PORT_REAR_PARKING_DISPLAY_ID 0

Display system identifier for the rear parking sensor

Function Documentation

◆ port_display_init()

void port_display_init ( uint32_t display_id )

Configure the HW specifications of a given display.

Assuming we are using an STM32F4-based platform, this function must call the following functions:

TODO alumnos:

✅ 1. Retrieve the display configuration struct calling _stm32f4_display_get().
✅ 2. Call function stm32f4_system_gpio_config() with the right arguments to configure each RGB LED as in alternate mode and no pull up neither pull down connection.
✅ 3. Call function stm32f4_system_gpio_config_alternate() with the right arguments to configure the alternate function of the each RGB LED.
✅ 4. Call function _timer_pwm_config() to configure the timer and the PWM signal of the display.
✅ 5. Call function port_display_set_rgb() to set the RGB LED to off.

Parameters

display_id Display ID. This index is used to select the element of the displays_arr[] array

◆ port_display_set_rgb()

void port_display_set_rgb	(	uint32_t	display_id,
		rgb_color_t	color
	)

Set the Capture/Compare register values for each channel of the RGB LED given a color.

This function disables the timer associated to the RGB LEDs, sets the Capture/Compare register values for each channel of the RGB LED, and enables the timer.

Warning: This function is valid for any given RGB LED, however, each RGB LED has its own timer. Write the code in a conditional statement to check the display_id.

TODO alumnos:

✅ 1. Retrieve the individual RGB values from the color parameter and follow the flowchart to set the RGB LED color by configuring the PWM signals appropriately: