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The ST7789 is a single-chip controller/driver for 262K-color, graphic type TFT-LCD. It consists of 720 source line and 320 gate line driving circuits. This chip is capable of connecting directly to an external microprocessor, and accepts, 8-bits/9-bits/16-bits/18-bits parallel interface. Display data can be stored in the on-chip display data RAM of 240x320x18 bits. It can perform display data RAM read/write operation with no external operation clock to minimize power consumption. In addition, because of the integrated power supply circuit necessary to drive liquid crystal; it is possible to make a display system with the fewest components.
LibDriver ST7789 is the full function driver of ST7789 launched by LibDriver.It provides the functions of drawing single point, filling block, image display, etc. LibDriver is MISRA compliant.
/src includes LibDriver ST7789 source files.
/interface includes LibDriver ST7789 SPI platform independent template.
/test includes LibDriver ST7789 driver test code and this code can test the chip necessary function simply.
/example includes LibDriver ST7789 sample code.
/doc includes LibDriver ST7789 offline document.
/datasheet includes ST7789 datasheet.
/project includes the common Linux and MCU development board sample code. All projects use the shell script to debug the driver and the detail instruction can be found in each project's README.md.
/misra includes the LibDriver MISRA code scanning results.
Reference /interface SPI platform independent template and finish your platform SPI driver.
Add /src, /interface and /example to your project.
The image extraction format is as follows and color format is RGB565.
#include "driver_st7789_basic.h"
#include "driver_st7789_display_image.h"
uint8_t res;
uint32_t color = 65535;
uint16_t x0 = 0;
uint16_t x1 = 0;
uint16_t x2 = 16;
uint16_t y0 = 0;
uint16_t y1 = 0;
uint16_t y2 = 16;
char str[49] = "libdriver";
/* basic init */
res = st7789_basic_init();
if (res != 0)
{
st7789_interface_debug_print("st7789: init failed.\n");
return 1;
}
/* basic clear */
res = st7789_basic_clear();
if (res != 0)
{
(void)st7789_basic_deinit();
return 1;
}
...
/* basic display on */
res = st7789_basic_display_on();
if (res != 0)
{
(void)st7789_basic_deinit();
return 1;
}
...
/* show the string */
res = st7789_basic_string(0, 0, str, (uint16_t)strlen(str), color, ST7789_FONT_16);
if (res != 0)
{
(void)st7789_basic_deinit();
return 1;
}
...
/* write point */
res = st7789_basic_write_point(x0, y0, color);
if (res != 0)
{
(void)st7789_basic_deinit();
return 1;
}
...
/* basic rect */
res = st7789_basic_rect(x1, y1, x2, y2, color);
if (res != 0)
{
(void)st7789_basic_deinit();
return 1;
}
...
/* draw picture */
res = st7789_draw_picture_16bits(&gs_handle, 0, 0, 239, 319, (uint16_t *)gsc_image);
if (res != 0)
{
(void)st7789_deinit(&gs_handle);
return 1;
}
...
/* basic display off */
res = st7789_basic_display_off();
if (res != 0)
{
(void)st7789_basic_deinit();
return 1;
}
...
/* basic deinit */
res = st7789_basic_deinit();
if (res != 0)
{
st7789_interface_debug_print("st7789: deinit failed.\n");
return 1;
}
return 0;Online documents: https://www.libdriver.com/docs/st7789/index.html.
Offline documents: /doc/html/index.html.
Please refer to CONTRIBUTING.md.
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