LOW_LEVEL_Private_Variables

Modules
	STM32L0538_DISCOVERY_LOW_LEVEL
	This file provides set of firmware functions to manage Leds and push-button available on STM32L0538-Discovery Kit from STMicroelectronics.
	STM32L0538_DISCOVERY_EPD
	STM32L053_DISCOVERY_EPD
	FONTS
	This file provides text Font12 for STM32L0538-Discovery's EPD driver.
Functions
static void	SPIx_Init (void)
	SPIx Bus initialization.
static void	SPIx_Write (uint8_t Value)
	SPI Write a byte to device.
static uint32_t	SPIx_Read (void)
	SPI Read 4 bytes from device.
static void	SPIx_Error (void)
	SPI error treatment function.
static void	SPIx_MspInit (SPI_HandleTypeDef *hspi)
	SPI MSP Init.
void	EPD_IO_Init (void)
	Configures the EPD SPI interface.
void	EPD_IO_WriteData (uint16_t RegValue)
	Write register value.
void	EPD_IO_WriteReg (uint8_t Reg)
	Writes command to selected EPD register.
uint16_t	EPD_IO_ReadData (void)
	Reads data from EPD data register.
void	EPD_Delay (uint32_t Delay)
	Wait for loop in ms.
uint32_t	BSP_GetVersion (void)
	This method returns the STM32L0538 DISCO BSP Driver revision.
void	BSP_LED_Init (Led_TypeDef Led)
	Configures LED GPIO.
void	BSP_LED_On (Led_TypeDef Led)
	Turns selected LED On.
void	BSP_LED_Off (Led_TypeDef Led)
	Turns selected LED Off.
void	BSP_LED_Toggle (Led_TypeDef Led)
	Toggles the selected LED.
void	BSP_PB_Init (Button_TypeDef Button, ButtonMode_TypeDef ButtonMode)
	Configures Button GPIO and EXTI Line.
uint32_t	BSP_PB_GetState (Button_TypeDef Button)
	Returns the selected Button state.
Variables
GPIO_TypeDef *	GPIO_PORT [LEDn]
const uint16_t	GPIO_PIN [LEDn]
GPIO_TypeDef *	BUTTON_PORT [BUTTONn] = {KEY_BUTTON_GPIO_PORT}
const uint16_t	BUTTON_PIN [BUTTONn] = {KEY_BUTTON_PIN}
const uint8_t	BUTTON_IRQn [BUTTONn] = {KEY_BUTTON_EXTI_IRQn}
static SPI_HandleTypeDef	SpiHandle

---

Function Documentation

uint32_t BSP_GetVersion

(

void

)

This method returns the STM32L0538 DISCO BSP Driver revision.

Parameters:

None

Return values:

version,:

0xXYZR (8bits for each decimal, R for RC)

Definition at line 134 of file stm32l0538_discovery.c.

References __STM32L0538_DISCO_BSP_VERSION.

void BSP_LED_Init

(

Led_TypeDef

Led

)

Configures LED GPIO.

Parameters:

Led,:

Specifies the Led to be configured. This parameter can be one of following parameters: LED3 LED4

Return values:

None

Definition at line 147 of file stm32l0538_discovery.c.

References GPIO_PIN, GPIO_PORT, and LEDx_GPIO_CLK_ENABLE.

void BSP_LED_Off

(

Led_TypeDef

Led

)

Turns selected LED Off.

Parameters:

Led,:

Specifies the Led to be set off. This parameter can be one of following parameters: LED3 LED4

Return values:

None

Definition at line 186 of file stm32l0538_discovery.c.

References GPIO_PIN, and GPIO_PORT.

void BSP_LED_On

(

Led_TypeDef

Led

)

Turns selected LED On.

Parameters:

Led,:

Specifies the Led to be set on. This parameter can be one of following parameters: LED3 LED4

Return values:

None

Definition at line 173 of file stm32l0538_discovery.c.

References GPIO_PIN, and GPIO_PORT.

void BSP_LED_Toggle

(

Led_TypeDef

Led

)

Toggles the selected LED.

Parameters:

Led,:

Specifies the Led to be toggled. This parameter can be one of following parameters: LED3 LED4

Return values:

None

Definition at line 199 of file stm32l0538_discovery.c.

References GPIO_PIN, and GPIO_PORT.

uint32_t BSP_PB_GetState

(

Button_TypeDef

Button

)

Returns the selected Button state.

Parameters:

Button,:

Specifies the Button to be checked. This parameter should be: BUTTON_KEY

Return values:

The	Button GPIO pin value.

Definition at line 252 of file stm32l0538_discovery.c.

References BUTTON_PIN, and BUTTON_PORT.

void BSP_PB_Init	(	Button_TypeDef	Button,
		ButtonMode_TypeDef	ButtonMode
	)

Configures Button GPIO and EXTI Line.

Parameters:

Button,:	Specifies the Button to be configured. This parameter should be: BUTTON_KEY
Button_Mode,:	Specifies Button mode. This parameter can be one of following parameters: BUTTON_MODE_GPIO: Button will be used as simple IO BUTTON_MODE_EXTI: Button will be connected to EXTI line with interrupt generation capability

Return values:

None

Definition at line 215 of file stm32l0538_discovery.c.

References BUTTON_IRQn, BUTTON_MODE_EXTI, BUTTON_MODE_GPIO, BUTTON_PIN, BUTTON_PORT, and BUTTONx_GPIO_CLK_ENABLE.

void EPD_Delay

(

uint32_t

Delay

)

Wait for loop in ms.

Parameters:

Delay

in ms.

Return values:

None

Definition at line 502 of file stm32l0538_discovery.c.

Referenced by BSP_EPD_CloseChargePump(), BSP_EPD_RefreshDisplay(), and EPD_IO_Init().

void EPD_IO_Init

(

void

)

Configures the EPD SPI interface.

Parameters:

None

Return values:

None

Definition at line 389 of file stm32l0538_discovery.c.

References EPD_BUSY_GPIO_CLK_ENABLE, EPD_BUSY_GPIO_PORT, EPD_BUSY_PIN, EPD_CS_GPIO_CLK_ENABLE, EPD_CS_GPIO_PORT, EPD_CS_HIGH, EPD_CS_LOW, EPD_CS_PIN, EPD_DC_GPIO_CLK_ENABLE, EPD_DC_GPIO_PORT, EPD_DC_PIN, EPD_Delay(), EPD_PWR_GPIO_CLK_ENABLE, EPD_PWR_GPIO_PORT, EPD_PWR_LOW, EPD_PWR_PIN, EPD_RESET_GPIO_CLK_ENABLE, EPD_RESET_GPIO_PORT, EPD_RESET_HIGH, EPD_RESET_PIN, and SPIx_Init().

uint16_t EPD_IO_ReadData

(

void

)

Reads data from EPD data register.

Parameters:

None

Return values:

Read

data.

Definition at line 485 of file stm32l0538_discovery.c.

References EPD_CS_HIGH, EPD_CS_LOW, and SPIx_Read().

void EPD_IO_WriteData

(

uint16_t

RegValue

)

Write register value.

Parameters:

None

Return values:

None

Definition at line 445 of file stm32l0538_discovery.c.

References EPD_CS_HIGH, EPD_CS_LOW, EPD_DC_HIGH, and SPIx_Write().

void EPD_IO_WriteReg

(

uint8_t

Reg

)

Writes command to selected EPD register.

Parameters:

Reg,:

Address of the selected register.

Return values:

None

Definition at line 465 of file stm32l0538_discovery.c.

References EPD_CS_HIGH, EPD_CS_LOW, EPD_DC_LOW, and SPIx_Write().

static void SPIx_Error

(

void

)

[static]

SPI error treatment function.

Parameters:

None

Return values:

None

Definition at line 341 of file stm32l0538_discovery.c.

References SpiHandle, and SPIx_Init().

Referenced by SPIx_Read(), and SPIx_Write().

static void SPIx_Init

(

void

)

[static]

SPIx Bus initialization.

Parameters:

None

Return values:

None

Definition at line 267 of file stm32l0538_discovery.c.

References DISCOVERY_SPIx, SpiHandle, and SPIx_MspInit().

Referenced by EPD_IO_Init(), and SPIx_Error().

static void SPIx_MspInit

(

SPI_HandleTypeDef *

hspi

)

[static]

SPI MSP Init.

Parameters:

hspi,:

SPI handle

Return values:

None

Definition at line 355 of file stm32l0538_discovery.c.

References DISCOVERY_SPIx_AF, DISCOVERY_SPIx_CLK_ENABLE, DISCOVERY_SPIx_GPIO_CLK_ENABLE, DISCOVERY_SPIx_GPIO_PORT, DISCOVERY_SPIx_MOSI_PIN, and DISCOVERY_SPIx_SCK_PIN.

Referenced by SPIx_Init().

static uint32_t SPIx_Read

(

void

)

[static]

SPI Read 4 bytes from device.

Parameters:

ReadSize

Number of bytes to read (max 4 bytes)

Return values:

Value

read on the SPI

Definition at line 299 of file stm32l0538_discovery.c.

References SpiHandle, SPIx_Error(), and SPIx_TIMEOUT_MAX.

Referenced by EPD_IO_ReadData().

static void SPIx_Write

(

uint8_t

Value

)

[static]

SPI Write a byte to device.

Parameters:

Value,:

value to be written

Return values:

None

Definition at line 322 of file stm32l0538_discovery.c.

References SpiHandle, SPIx_Error(), and SPIx_TIMEOUT_MAX.

Referenced by EPD_IO_WriteData(), and EPD_IO_WriteReg().

---

Variable Documentation

const uint8_t BUTTON_IRQn[BUTTONn] = {KEY_BUTTON_EXTI_IRQn}

Definition at line 99 of file stm32l0538_discovery.c.

Referenced by BSP_PB_Init().

const uint16_t BUTTON_PIN[BUTTONn] = {KEY_BUTTON_PIN}

Definition at line 98 of file stm32l0538_discovery.c.

Referenced by BSP_PB_GetState(), and BSP_PB_Init().

GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {KEY_BUTTON_GPIO_PORT}

Definition at line 97 of file stm32l0538_discovery.c.

Referenced by BSP_PB_GetState(), and BSP_PB_Init().

const uint16_t GPIO_PIN[LEDn]

Initial value:

 {LED3_PIN,
                                 LED4_PIN}

Definition at line 94 of file stm32l0538_discovery.c.

Referenced by BSP_LED_Init(), BSP_LED_Off(), BSP_LED_On(), and BSP_LED_Toggle().

GPIO_TypeDef* GPIO_PORT[LEDn]

Initial value:

 {LED3_GPIO_PORT,
                                 LED4_GPIO_PORT}

Definition at line 91 of file stm32l0538_discovery.c.

Referenced by BSP_LED_Init(), BSP_LED_Off(), BSP_LED_On(), and BSP_LED_Toggle().

SPI_HandleTypeDef SpiHandle [static]

Definition at line 101 of file stm32l0538_discovery.c.

Referenced by SPIx_Error(), SPIx_Init(), SPIx_Read(), and SPIx_Write().