AN3128 datasheet(66/105 Pages) STMICROELECTRONICS

66 / 105 page

Multi-input embedded GUI library firmware

AN3128

66/105

Doc ID 16918 Rev 5

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LCD_Ctrl_Pin_NCS is the GPIO pin which the LCD control pin is connected to

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LCD_Gpio_Pin_SCK is the SPI clock pin needed by the SPI interface for the

communication between LCD and micro

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LCD_Gpio_Pin_MISO is the SPI MISO pin needed by the SPI interface for the

communication between LCD and micro

●

LCD_Gpio_Pin_MOSI is the SPI MOSI pin needed by the SPI interface for the

communication between LCD and micro

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LCD_Gpio_RemapPort specifies eventually the SPI alternate function mapping

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LCD_Rcc_APBPeriph_GPIO specifies the IO port clock for the LCD data transfer, the

APB peripheral that gates the clock

●

LCD_Rcc_APBPeriph_GPIO_Ncs specifies the IO port clock for the NCS control port

of the LCD

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LCD_Rcc_Apb_Periph selects the APB peripheral bus that gates the clock

●

LCD_Rcc_Ahb_Periph selects the AHB peripheral bus that gates the clock

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LCD_Bus_Port is the communication interface port used by the LCD (i.e. SPI/I2C)

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LCD_Connection_Mode indicates the way in which the LCD is connected (i.e.

FSMC/SPI/OTHER).

Some examples are listed below:

File: hw_config.h

//LCD Controller DEFINES

#define LCD_CTRL_PORT_NCS

GPIOB

#define LCD_GPIO_DATA_PORT

GPIOC

#define LCD_CTRL_PIN_NCS

GPIO_Pin_2

#define LCD_GPIO_PIN_SCK

GPIO_Pin_10

#define LCD_GPIO_PIN_MISO

GPIO_Pin_11

#define LCD_GPIO_PIN_MOSI

GPIO_Pin_12

#define LCD_GPIO_RCC_APB_PERIPH

RCC_APB2Periph_GPIOC

#define LCD_GPIO_RCC_APB_PERIPH_NCS

RCC_APB2Periph_GPIOB

#define LCD_GPIO_REMAP_PORT

GPIO_Remap_SPI3

#define LCD_RCC_APB_PERIPH

RCC_APB1Periph_SPI3

#define LCD_SPI_PORT

SPI3

#define LCD_CONNECTION_MODE

GL_FSMC

LCD_HW_Parameters_TypeDef* pLcdParam;

File: hw_config.c

void HWConfig_SetHardwareParams(void)

{

...

pLcdParam = NewLcdHwParamObj();

/* Assign the following values for LCD Controller Parameters Structure */

pLcdParam->LCD_Ctrl_Port_NCS

= LCD_CTRL_PORT_NCS;

pLcdParam->LCD_Gpio_Data_Port

= LCD_GPIO_DATA_PORT;

pLcdParam->LCD_Ctrl_Pin_NCS

= LCD_CTRL_PIN_NCS;

pLcdParam->LCD_Ctrl_Pin_NWR

= LCD_CTRL_PIN_NWR;

pLcdParam->LCD_Ctrl_Pin_RS

= LCD_CTRL_PIN_RS;

pLcdParam->LCD_Gpio_Pin_SCK

= LCD_GPIO_PIN_SCK;

pLcdParam->LCD_Gpio_Pin_MISO

= LCD_GPIO_PIN_MISO;

pLcdParam->LCD_Gpio_Pin_MOSI

= LCD_GPIO_PIN_MOSI;

pLcdParam->LCD_Gpio_RemapPort

= LCD_GPIO_REMAP_PORT;

pLcdParam->LCD_Rcc_APBPeriph_GPIO

= LCD_GPIO_RCC_APB_PERIPH;

pLcdParam->LCD_Rcc_APBPeriph_GPIO_Ncs = LCD_GPIO_RCC_APB_PERIPH_NCS;

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