st7567_stc8h3k.c File Reference

#include "fw_hal.h"
#include "st7567.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 53 of file st7567_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 63 of file st7567_stc8h3k.c.

{
    int y1, y2;
    uint8_t d1, d2;
 
    SYS_SetClock();
    GPIO_Init();
    SPI_Init();
    ST7567_Init();
 
    while(1)
    {
        ST7567_DrawLine(0,   0, 127,  0, 1);
        ST7567_DrawLine(0,   0,   0, 63, 1);
        ST7567_DrawLine(127, 0, 127, 63, 1);
        ST7567_DrawLine(0,  63, 127, 63, 1);
 
        ST7567_GotoXY(3, 5);
        ST7567_Puts("LCD:ST7567", &Font_5x7, 1);
        ST7567_GotoXY(3, 13);
        ST7567_Puts("STC8 FwLib Demo", &Font_5x7, 1);
        ST7567_GotoXY(3, 21);
        ST7567_Puts("It's a demo of ST7567 12864 LCD", &Font_3x5, 1);
        ST7567_GotoXY(3, 27);
        ST7567_Puts("Font size 3x5, nums:01234567890", &Font_3x5, 1);
        ST7567_GotoXY(5, 52);
        ST7567_Puts("Font size: 5x7", &Font_5x7, 1);
        ST7567_UpdateScreen(); 
        SYS_Delay(2000);
 
        y1 = 10;
        while (y1 <= 0x30)
        {
            ST7567_SetContrast(y1++);
            SYS_Delay(100);
        }
        while (y1 >= 10)
        {
            ST7567_SetContrast(y1--);
            SYS_Delay(100);
        }
        while (y1 <= 0x20)
        {
            ST7567_SetContrast(y1++);
            SYS_Delay(100);
        }
        SYS_Delay(2000);
 
        ST7567_ToggleInvert();
        ST7567_UpdateScreen();
        SYS_Delay(2000);
 
        ST7567_ToggleInvert();
        ST7567_UpdateScreen();
        SYS_Delay(2000);
 
        ST7567_Fill(0);
        y1 = 64, y2 = 0;
        while (y1 > 0)
        {
            ST7567_DrawLine(0, y1, 127, y2, 1);
            ST7567_UpdateScreen();
            y1 -= 2;
            y2 += 2;
            SYS_Delay(100);
        }
        SYS_Delay(1000);
 
        ST7567_Fill(0);
        y1 = 127, y2 = 0;
        while (y1 > 0)
        {
            ST7567_DrawLine(y1, 0, y2, 63, 1);
            ST7567_UpdateScreen();
            y1 -= 2;
            y2 += 2;
            SYS_Delay(100);
        }
        SYS_Delay(1000);
 
        ST7567_Fill(0);
        ST7567_UpdateScreen();
        SYS_Delay(2000);
    }
}

SPI_Init()

void SPI_Init

(

void

)

Definition at line 33 of file st7567_stc8h3k.c.

{
    // ST7567 doesn't work if SPI frequency is too high
    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);
}