10 关于Rt-thread k210 屏幕显示

发布于 2021-07-27 18:26:13 浏览：1679 订阅该版

目前在rt-thread下，k210 在屏幕显示上总是有时候显示半部分，另外来不及显示应该是，但是裸跑话就可以完全显示，驱动屏幕显示的驱动代码是一致的，这个大概是什么情况啊。有没有大佬遇到过的。
```
tatic void* thread_face_detcet_entry(void *parameter)
{   
    extern void lcd_draw_picture(uint16_t x1, uint16_t y1, uint16_t width, uint16_t height, uint32_t *ptr);
    printf("sthread_face_detcet_entry start!\n");
    int ret = 0;
    //sysctl_enable_irq();
    while(1)
    {
        //memset(showbuffer,0,320*240*2);
        g_ai_done_flag = 0;
        ret = ioctl(g_fd,IOCTRL_CAMERA_START_SHOT,&shoot_para_t);
        if(RT_ERROR == ret)
        {
            printf("ov2640 can't wait event flag");
            rt_free(showbuffer);
            close(g_fd);
            pthread_exit(NULL);  
            return NULL;
        }
        kpu_run_kmodel(&face_detect_task, kpurgbbuffer, DMAC_CHANNEL5, ai_done, NULL);
        while(!g_ai_done_flag);
        float *output;
        size_t output_size;
        kpu_get_output(&face_detect_task, 0, (uint8_t **)&output, &output_size);
        face_detect_rl.input = output;        
        region_layer_run(&face_detect_rl, &face_detect_info);
        /* display result */
        #ifdef BSP_USING_LCD
        for (int face_cnt = 0; face_cnt < face_detect_info.obj_number; face_cnt++)
        {
            draw_edge((uint32_t *)showbuffer, &face_detect_info, face_cnt, 0xF800);
        }
        lcd_draw_picture(0, 0, 320, 240, (unsigned int*)showbuffer); 
        #endif
       sleep(1);
       if(1 == if_exit)
       {
          if_exit = 0;
          printf("thread_face_detcet_entry exit");
          pthread_exit(NULL);  
       }
    }

}
```