I use ncs V2.3.0 with NRF52832 on my own board ,not 52832dk board. I connect one oled(ssd1306 with pixels of 64*32) by i2c1.
when I run my test code, I got the question like this:
after lv_bar_set_start_value(count_label, 0,LV_ANIM_ON);
I trace the code step by step in lv_task_handler(), and in function get_max_row in the file lv_refr.c ,I got into
if(h_tmp <= 0) {
LV_LOG_WARN("Can't set draw_buf height using the round function. (Wrong round_cb or to "
"small draw_buf)");
return 0;
}
my test code is as flow:
void main(void)
{
uint32_t count = 0U;
char count_str[11] = {0};
const struct device *display_dev;
lv_obj_t *hello_world_label;
lv_obj_t *count_label;
//display_dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_display));
display_dev = device_get_binding("SSD1306");
if (display_dev == NULL) {
return;
}
if (!device_is_ready(display_dev)) {
LOG_ERR("Device not ready, aborting test");
return;
}
LOG_ERR("Device Ready");
count_label = lv_bar_create(lv_scr_act());
lv_obj_align(count_label, LV_ALIGN_BOTTOM_MID, 0, 0);
lv_bar_set_start_value(count_label, 0,LV_ANIM_ON);
lv_task_handler();
display_blanking_off(display_dev);
while (1) {
if ((count % 100) == 0U) {
sprintf(count_str, "%d", count/100U);
lv_bar_set_value(count_label, count+1, LV_ANIM_ON);
}
lv_task_handler();
k_sleep(K_MSEC(10));
++count;
}
}
