pcd8544_stc8h3k.c File Reference

#include "fw_hal.h"
#include "pcd8544.h"

Go to the source code of this file.

Functions
void	SPI_Init (void)
void	GPIO_Init (void)
int	main (void)

Function Documentation

GPIO_Init()

void GPIO_Init

(

void

)

Definition at line 52 of file pcd8544_stc8h3k.c.

{
    // Configure GPIO pins before SPI and device
    // DIN(P34)
    GPIO_P3_SetMode(GPIO_Pin_4, GPIO_Mode_InOut_QBD);
    // SCLK(P32)
    GPIO_P3_SetMode(GPIO_Pin_2|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7, GPIO_Mode_Output_PP);
    GPIO_P1_SetMode(GPIO_Pin_2, GPIO_Mode_Output_PP);
}

main()

int main

(

void

)

Definition at line 62 of file pcd8544_stc8h3k.c.

{
    uint8_t y1, y2;
 
    SYS_SetClock();
    GPIO_Init();
    SPI_Init();
    PCD8544_Init();
 
    while(1)
    {
        PCD8544_SetBackLightState(HAL_State_ON);
        SYS_Delay(500);
        PCD8544_SetDisplayAllOn();
        SYS_Delay(200);
        PCD8544_SetDisplayInverted();
        SYS_Delay(200);
        PCD8544_SetDisplayBlank();
        SYS_Delay(200);
        PCD8544_SetDisplayNormal();
        SYS_Delay(500);
        PCD8544_Fill(0);
 
        PCD8544_DrawLine(0,   0,  83,  0, 1);
        PCD8544_DrawLine(0,   0,   0, 47, 1);
        PCD8544_DrawLine(83,  0,  83, 47, 1);
        PCD8544_DrawLine(0,  47,  83, 47, 1);
        PCD8544_UpdateScreen();
        SYS_Delay(500);
 
        PCD8544_GotoXY(3, 3);
        PCD8544_Puts("LCD:PCD8544", &Font_5x7, 1);
        PCD8544_GotoXY(3, 11);
        PCD8544_Puts("STC8 FwLib", &Font_5x7, 1);
        PCD8544_GotoXY(3, 19);
        PCD8544_Puts("A demo of PCD8544", &Font_3x5, 1);
        PCD8544_GotoXY(3, 25);
        PCD8544_Puts("Font 3x5: 01234567890", &Font_3x5, 1);
        PCD8544_UpdateScreen();
        SYS_Delay(500);
        PCD8544_SetPowerDownMode(HAL_State_ON);
        SYS_Delay(1000);
        PCD8544_SetPowerDownMode(HAL_State_OFF);
        SYS_Delay(1000);
        PCD8544_SetDisplayInverted();
        SYS_Delay(1000);
        PCD8544_SetDisplayNormal();
        SYS_Delay(1000);
 
        for (y1 = 0x05; y1 < 0x08; y1++)
        {
            for (y2 = 0x00; y2 < 0x60; y2+=2)
            {
                PCD8544_GotoXY(3, 32);
                PCD8544_Putc(HEX_TABLE[y1 >> 4], &Font_5x7, 1);
                PCD8544_Putc(HEX_TABLE[y1 & 0x0F], &Font_5x7, 1);
                PCD8544_Putc(' ', &Font_5x7, 1);
                PCD8544_Putc(HEX_TABLE[y2 >> 4], &Font_5x7, 1);
                PCD8544_Putc(HEX_TABLE[y2 & 0x0F], &Font_5x7, 1);
                PCD8544_UpdateScreen();
                PCD8544_SetContrast(y1, y2);
                SYS_Delay(100);
            }
            SYS_Delay(1000);
        }
        PCD8544_SetContrast(0x06, 0x20);
        PCD8544_Fill(0);
 
        y1 = 47, y2 = 0;
        while (y1 < 0xF0)
        {
            PCD8544_DrawLine(0, y1, 83, y2, 1);
            PCD8544_UpdateScreen();
            y1 -= 2;
            y2 += 2;
            SYS_Delay(100);
        }
        SYS_Delay(1000);
        PCD8544_Fill(0);
        
        y1 = 83, y2 = 0;
        while (y1 < 0xF0)
        {
            PCD8544_DrawLine(y1, 0, y2, 47, 1);
            PCD8544_UpdateScreen();
            y1 -= 2;
            y2 += 2;
            SYS_Delay(100);
        }
        SYS_Delay(1000);
 
        PCD8544_Fill(0);
        PCD8544_UpdateScreen();
        SYS_Delay(1000);
        PCD8544_SetBackLightState(HAL_State_OFF);
        SYS_Delay(1000);
    }
}

SPI_Init()

void SPI_Init

(

void

)

Definition at line 33 of file pcd8544_stc8h3k.c.

{
    SPI_SetClockPrescaler(SPI_ClockPreScaler_16);
    // Clock is low when idle
    SPI_SetClockPolarity(HAL_State_OFF);
    // Data transfer is driven by lower SS pin
    SPI_SetClockPhase(SPI_ClockPhase_LeadingEdge);
    // MSB first
    SPI_SetDataOrder(SPI_DataOrder_MSB);
    // Define the output pins
    SPI_SetPort(SPI_AlterPort_P35_P34_P33_P32);
    // Ignore SS pin, use MSTR to swith between master/slave mode
    SPI_IgnoreSlaveSelect(HAL_State_ON);
    // Master mode
    SPI_SetMasterMode(HAL_State_ON);
    // Start SPI
    SPI_SetEnabled(HAL_State_ON);
}