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Description
What MCU/Processor/Board and compiler are you using?
stm32f407 disco cubeide
What LVGL version are you using?
lvgl 9
What do you want to achieve?
ssd1963(800x480) high fps on lvgl
What have you tried so far?
fsmc+dma
Code to reproduce
Add a code snippet which can run in the simulator. It should contain only the relevant code that compiles without errors when separated from your main code base.
The code block(s) should be formatted like:
I moved stm32f407 discovery,ssd1963(800x480) lvgl. I am using fsmc+dma. Lvgl is very slow.
#define LV_MEM_SIZE (48U * 1024U)
#define FB_SIZE 10
void LV_tft_init(void)
{
static lv_color_t buf_1[ SSD1963_SCREEN_WIDTH * FB_SIZE];
static lv_color_t buf_2[ SSD1963_SCREEN_WIDTH * FB_SIZE];
static lv_disp_draw_buf_t disp_buf;
lv_disp_draw_buf_init(&disp_buf, buf_1,buf_2,SSD1963_SCREEN_WIDTH * FB_SIZE);
lv_disp_drv_init(&disp_drv);
disp_drv.draw_buf = &disp_buf;
disp_drv.flush_cb = tft_flush_cb;
disp_drv.monitor_cb = monitor_cb;
disp_drv.hor_res = 800;
disp_drv.ver_res = 480;
//disp_drv.sw_rotate = 1;//SCREEN
//disp_drv.rotated = LV_DISP_ROT_180;
lv_disp_drv_register(&disp_drv);
}
static void tft_flush_cb(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_p)
{
int32_t act_x1 = area->x1 < 0 ? 0 : area->x1;
int32_t act_y1 = area->y1 < 0 ? 0 : area->y1;
int32_t act_x2 = area->x2 > SSD1963_SCREEN_WIDTH - 1 ? SSD1963_SCREEN_WIDTH - 1 : area->x2;
int32_t act_y2 = area->y2 > SSD1963_SCREEN_HEIGHT - 1 ? SSD1963_SCREEN_HEIGHT - 1 : area->y2;
x1_flush = act_x1;
y1_flush = act_y1;
x2_flush = act_x2;
y2_flush = act_y2;
y_flush_act = act_y1;
buf_to_flush = color_p;
/*Use DMA instead of DMA2D to leave it free for GPU*/
HAL_StatusTypeDef err;
SSD1963_Set_Address(x1_flush, y_flush_act, x2_flush, y_flush_act + 1);
err = HAL_DMA_Start_IT(&hdma_memtomem_dma2_stream0,(uint32_t)buf_to_flush, (uint32_t)lcdAddr, (x2_flush - x1_flush + 1));
if(err != HAL_OK)
{
while(1);
}
}
I made #define LV_MEM_SIZE (48U * 1024U) ,60U
#define FB_SIZE I did 10 .30, nothing changed.
lvgl is still very slow, what should I do to speed it up?
Screenshot and/or video
If possible, add screenshots and/or videos about the current state.
ssd1963.zip (933.9 KB)