[lvgl][l475] use single buffer instead of double buffers
#include <drv_lcd.h>
#define MY_DISP_HOR_RES LCD_W
-#define DISP_BUFFER_LINES 70
+#define DISP_BUFFER_LINES (LCD_H/5)
/*A static or global variable to store the buffers*/
static lv_disp_draw_buf_t disp_buf;
@@ -21,7 +21,6 @@ static lv_disp_drv_t disp_drv;
/*Static or global buffer(s). The second buffer is optional*/
static lv_color_t buf_1[MY_DISP_HOR_RES * DISP_BUFFER_LINES];
-static lv_color_t buf_2[MY_DISP_HOR_RES * DISP_BUFFER_LINES];
/*Flush the content of the internal buffer the specific area on the display
*You can use DMA or any hardware acceleration to do this operation in the background but
@@ -39,7 +38,7 @@ static void disp_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_colo
void lv_port_disp_init(void)
{
/*Initialize `disp_buf` with the buffer(s). With only one buffer use NULL instead buf_2 */
- lv_disp_draw_buf_init(&disp_buf, buf_1, buf_2, MY_DISP_HOR_RES * DISP_BUFFER_LINES);
+ lv_disp_draw_buf_init(&disp_buf, buf_1, RT_NULL, MY_DISP_HOR_RES * DISP_BUFFER_LINES);
lv_disp_drv_init(&disp_drv); /*Basic initialization*/
