Board specific definitions for the STM32L496G-DISCO board. More...

Detailed Description

Board specific definitions for the STM32L496G-DISCO board.

Author: Alexandre Abadie alexa.nosp@m.ndre.nosp@m..abad.nosp@m.ie@i.nosp@m.nria..nosp@m.fr; Gunar Schorcht gunar.nosp@m.@sch.nosp@m.orcht.nosp@m..net

Definition in file board.h.

#include <stdint.h>
#include "cpu.h"
#include "stm32_leds.h"

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Go to the source code of this file.

LCD Backlight control defines
#define	BACKLIGHT_PIN GPIO_PIN(PORT_I, 0)
	Backlight pin (HIGH active LD_BL)

#define	BACKLIGHT_MASK (1 << 0)
	Backlight pin mask.

#define	BACKLIGHT_ON (GPIOI->BSRR = BACKLIGHT_MASK)
	Set the backlight pin.

#define	BACKLIGHT_OFF (GPIOI->BSRR = (BACKLIGHT_MASK << 16))
	Clear the backlight pin.

#define	BACKLIGHT_TOGGLE (GPIOI->ODR ^= BACKLIGHT_MASK)
	Toggle the backlight pin.

LCD display definitions
The STM32L496-DISCO board has a 240 x 240 pixel TFT color LCD display with ST7789 driver IC using MCU 8080 16-bit parallel interface (default with SB14=ON and SB15=OFF). SB14 and SB15 control the ST7789 `IM0` signal. With SB14=OFF and SB15=ON, the MCU 8080 8-bit parallel interface is enabled. For the `LCD_*` pins the identifiers are used as given in the schematic. The LCD display has to be switched on explicitly by activating VDD_LCD using the LOW active `LD_PWR_ON` signal. Note The `LCD_RESET` signal is provided by the MFX GPIO2 pin. Since the MFX is not yet supported, the `LCD_RESET` signal cannot be used by the display driver. However, since the `LCD_RESET` signal is pulled up and the MFX GPIO2 pin is configured as a floating input by default, the driver will work without MFX support and the `LCD_RESET` signal.
#define	LCD_DISP_PIN GPIO_PIN(PORT_H, 0)
	LCD power pin (LOW active LD_PWR_ON)

#define	LCD_SCREEN_WIDTH 240
	LCD width.

#define	LCD_SCREEN_HEIGHT 240
	LCD height.

#define	LCD_D0 GPIO_PIN(PORT_D, 14)
	LCD_D0 pin.

#define	LCD_D1 GPIO_PIN(PORT_D, 15)
	LCD_D1 pin.

#define	LCD_D2 GPIO_PIN(PORT_D, 0)
	LCD_D2 pin.

#define	LCD_D3 GPIO_PIN(PORT_D, 1)
	LCD_D3 pin.

#define	LCD_D4 GPIO_PIN(PORT_E, 7)
	LCD_D4 pin.

#define	LCD_D5 GPIO_PIN(PORT_E, 8)
	LCD_D5 pin.

#define	LCD_D6 GPIO_PIN(PORT_E, 9)
	LCD_D6 pin.

#define	LCD_D7 GPIO_PIN(PORT_E, 10)
	LCD_D7 pin.

#define	LCD_D8 GPIO_PIN(PORT_E, 11)
	LCD_D8 pin.

#define	LCD_D9 GPIO_PIN(PORT_E, 12)
	LCD_D9 pin.

#define	LCD_D10 GPIO_PIN(PORT_E, 13)
	LCD_D10 pin.

#define	LCD_D11 GPIO_PIN(PORT_E, 14)
	LCD_D11 pin.

#define	LCD_D12 GPIO_PIN(PORT_E, 15)
	LCD_D12 pin.

#define	LCD_D13 GPIO_PIN(PORT_D, 8)
	LCD_D13 pin.

#define	LCD_D14 GPIO_PIN(PORT_D, 9)
	LCD_D14 pin.

#define	LCD_D15 GPIO_PIN(PORT_D, 10)
	LCD_D15 pin.

#define	LCD_TE GPIO_PIN(PORT_H, 7)
	LCD_TE pin.

#define	LCD_WE GPIO_PIN(PORT_D, 5)
	LCD_WE pin.

#define	LCD_OE GPIO_PIN(PORT_D, 4)
	LCD_OE pin.

#define	LCD_RS GPIO_PIN(PORT_D, 13)
	LCD_RS pin.

#define	LCD_NE GPIO_PIN(PORT_D, 7)
	LCD_NE pin.

#define	LCD_RST GPIO_UNDEF
	LCD_RST pin (MFX_GPIO2)

#define	LCD_BACKLIGHT BACKLIGHT_PIN
	LCD_BL pin.

#define	ST77XX_PARAM_CNTRL ST77XX_CNTRL_ST7789
	ST77xx controller variant.

#define	ST77XX_PARAM_SPI SPI_UNDEF
	parallel interface is used

#define	ST77XX_PARAM_D0 LCD_D0
	ST77xx D0 signal.

#define	ST77XX_PARAM_D1 LCD_D1
	ST77xx D1 signal.

#define	ST77XX_PARAM_D2 LCD_D2
	ST77xx D2 signal.

#define	ST77XX_PARAM_D3 LCD_D3
	ST77xx D3 signal.

#define	ST77XX_PARAM_D4 LCD_D4
	ST77xx D4 signal.

#define	ST77XX_PARAM_D5 LCD_D5
	ST77xx D5 signal.

#define	ST77XX_PARAM_D6 LCD_D6
	ST77xx D6 signal.

#define	ST77XX_PARAM_D7 LCD_D7
	ST77xx D7 signal.

#define	ST77XX_PARAM_D8 LCD_D8
	ST77xx D8 signal.

#define	ST77XX_PARAM_D9 LCD_D9
	ST77xx D9 signal.

#define	ST77XX_PARAM_D10 LCD_D10
	ST77xx D10 signal.

#define	ST77XX_PARAM_D11 LCD_D11
	ST77xx D11 signal.

#define	ST77XX_PARAM_D12 LCD_D12
	ST77xx D12 signal.

#define	ST77XX_PARAM_D13 LCD_D13
	ST77xx D13 signal.

#define	ST77XX_PARAM_D14 LCD_D14
	ST77xx D14 signal.

#define	ST77XX_PARAM_D15 LCD_D15
	ST77xx D15 signal.

#define	ST77XX_PARAM_WRX LCD_WE
	ST77xx WR signal.

#define	ST77XX_PARAM_RDX LCD_OE
	ST77xx RD signal.

#define	ST77XX_PARAM_DCX LCD_RS
	ST77xx RS signal.

#define	ST77XX_PARAM_RST LCD_RST
	ST77xx RST signal.

#define	ST77XX_PARAM_CS LCD_NE
	ST77xx CS signal.

#define	ST77XX_PARAM_RGB 1
	ST77xx RGB mode.

#define	ST77XX_PARAM_INVERTED 1
	ST77xx inverted colors.

#define	ST77XX_PARAM_ROTATION ST77XX_ROTATION_0
	ST77xx rotation.

#define	ST77XX_PARAM_NUM_LINES LCD_SCREEN_HEIGHT
	ST77xx number of lines.

#define	ST77XX_PARAM_RGB_CHANNELS LCD_SCREEN_WIDTH
	ST77xx number of channels.

Touch panel configuration
The board uses a FT6236 touch panel driver IC.
#define	FT5X06_PARAM_I2C_DEV I2C_DEV(1)
	I2C device.

#define	FT5X06_PARAM_INT_PIN GPIO_PIN(PORT_G, 14)
	Interrupt pin.

#define	FT5X06_PARAM_XMAX LCD_SCREEN_WIDTH
	Max width.

#define	FT5X06_PARAM_YMAX LCD_SCREEN_HEIGHT
	Max height.

#define	FT5X06_PARAM_TYPE FT5X06_TYPE_FT6X36
	Device type.

#define	FT5X06_PARAM_XYCONV FT5X06_SWAP_XY \| FT5X06_MIRROR_Y
	Swap XY, then mirror Y.

LED pin definitions and handlers
The board has 3 user LEDs: LD1 orange, active HIGH (not directly usable, connected to MFX GPIO4 LD2 green, active HIGH (connected to PB13) LD3 green, active LOW (connected to PA5)
#define	LED0_PIN_NUM 13
	green LED (LD2) pin

#define	LED0_PORT GPIO_PORT_B
	GPIO port of green LED (LD2)

#define	LED0_PORT_NUM PORT_B
	green LED (LD2) port

#define	LED1_PIN_NUM 5
	green LED (LD3) pin

#define	LED1_PORT GPIO_PORT_A
	GPIO port of green LED (LD3)

#define	LED1_PORT_NUM PORT_A
	green LED (LD3) port

#define	LED1_IS_INVERTED 1
	green LED (LD3) is LOW active

Joystick buttons
The board has a joystick that is exposed as user buttons.
#define	BTN0_PIN GPIO_PIN(PORT_C, 13)
	Center button pin

#define	BTN0_MODE GPIO_IN_PD
	Center button mode.

#define	BTN1_PIN GPIO_PIN(PORT_I, 9)
	Left button pin

#define	BTN1_MODE GPIO_IN_PD
	Left button mode

#define	BTN2_PIN GPIO_PIN(PORT_I, 10)
	Down button pin

#define	BTN2_MODE GPIO_IN_PD
	Down button mode

#define	BTN3_PIN GPIO_PIN(PORT_F, 11)
	Right button pin

#define	BTN3_MODE GPIO_IN_PD
	Right button mode

#define	BTN4_PIN GPIO_PIN(PORT_I, 8)
	Up button pin

#define	BTN4_MODE GPIO_IN_PD
	Up button mode

Detailed Description

LCD Backlight control defines

LCD display definitions

Touch panel configuration

LED pin definitions and handlers

Joystick buttons