LVGL is v-8.0.0
Code
The code block(s) should be between ```c and ``` tags:
void lv_port_disp_init(void)
{
/*-----------------------------
* Create a buffer for drawing
*----------------------------*/
/**
* LVGL requires a buffer where it internally draws the widgets.
* Later this buffer will passed to your display driver's `flush_cb` to copy its content to your display.
* The buffer has to be greater than 1 display row
*
* There are 3 buffering configurations:
* 1. Create ONE buffer:
* LVGL will draw the display's content here and writes it to your display
*
* 2. Create TWO buffer:
* LVGL will draw the display's content to a buffer and writes it your display.
* You should use DMA to write the buffer's content to the display.
* It will enable LVGL to draw the next part of the screen to the other buffer while
* the data is being sent form the first buffer. It makes rendering and flushing parallel.
*
* 3. Double buffering
* Set 2 screens sized buffers and set disp_drv.full_refresh = 1.
* This way LVGL will always provide the whole rendered screen in `flush_cb`
* and you only need to change the frame buffer's address.
*/
static lv_disp_draw_buf_t disp_buf;
static lv_color_t buf_1[LV_HOR_RES_MAX * 10]; /*A buffer for 10 rows*/
lv_disp_draw_buf_init(&disp_buf, buf_1, NULL, LV_HOR_RES_MAX * 10); /*Initialize the display buffer*/
//===================================================================================================
lv_disp_drv_t disp_drv; /*Descriptor of a display driver*/
lv_disp_drv_init(&disp_drv); /*Basic initialization*/
/*Set the resolution of the display*/
disp_drv.hor_res = LV_HOR_RES_MAX;
disp_drv.ver_res = LV_VER_RES_MAX;
disp_drv.flush_cb = lv_disp_drv_flush_simple_cb; /*Set your driver function*/
disp_drv.draw_buf = &disp_buf; /*Assign the buffer to the display*/
/* Fill a memory array with a color if you have GPU.
* Note that, in lv_conf.h you can enable GPUs that has built-in support in LVGL.
* But if you have a different GPU you can use with this callback.*/
//disp_drv.gpu_fill_cb = gpu_fill;
/*Finally register the driver*/
lv_disp_drv_register(&disp_drv);
}
/**
* @brief ivgl相关初时化
*/
static void lvgl_config_init(void)
{
//--------------------------lvgl初时化--------------------------------------------------
lv_init();
lv_port_disp_init();
//lv_port_indev_init();
}
Screenshot and/or video
If possible, add screenshots and/or videos about the current state.
COM9_2021-06-30_19-49-58.log_ARM.txt (65.2 KB)
In my project, the program dump before the disp_drv flush_cb run.
the lv_tick_inc(5) and lv_task_handler() also called in 5ms in a timer handler in my project.
so I just want to know what wrong in my project.
Thanks!