SSD1306 I2C OLED 128x64 PSoC 4 (CY8C4146LQI-S433)

MotooTanaka · ‎Dec 22, 2022

Hi,

As I saw a discussion about this device

https://community.infineon.com/t5/PSoC-4/How-to-connect-an-Oled-to-CY8CKIT-041-41XX/td-p/386950

I purchased a 3 piece set from Amazon.

Since I did not have (or could not find) CY8CKIT-041-41XX,
I used TSoC (CY8C4146LQI-S433) board.

Schematic

Pins

When started, monitor of starting sequence and first help message is shown in the UART (Tera Term)

To display the test pattern, Enter "TestPatern" to the prompt.

void do_test_pattern(void)
{
    char *ptr ;
    do_clear_display() ;
    ssd1306_fillrect(15, 10, 115, 20) ;
    ssd1306_set_color(SSD1306_BLACK) ;
    ssd1306_text_x = 16 ;
    ssd1306_text_y = 11 ;
    draw_string("SSD1306 I2C OLED") ;
    ssd1306_set_color(SSD1306_WHITE) ;
    ssd1306_line(10, 25, 120, 25) ;
    ssd1306_text_x = 28 ;
    ssd1306_text_y = 30 ;
    draw_string("PSoC Version") ;
    ssd1306_line(20, 40, 40, 60) ;
    ssd1306_line(20, 60, 40, 40) ;
    ssd1306_fillrect(50, 40, 70, 60) ;
    ssd1306_circle(90, 50, 10) ;
    
}

I'm afraid that I have not tested all the functionalies, but it seems that most of the basic functions are working.

moto