From 5f76d98311206e333762daa7b90a355cd0ed2b96 Mon Sep 17 00:00:00 2001 From: embeddedt <42941056+embeddedt@users.noreply.github.com> Date: Thu, 4 Apr 2019 11:27:55 -0400 Subject: [PATCH] Update README.md --- README.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index 8ffb2a691..7305e4655 100644 --- a/README.md +++ b/README.md @@ -71,7 +71,7 @@ Choose a project with your favourite IDE: ### Porting to an embedded hardware In the most simple case you need to do these steps: 1. Copy `lv_conf_templ.h` as `lv_conf.h` next to `lvgl` and set at least `LV_HOR_RES`, `LV_VER_RES` and `LV_COLOR_DEPTH`. -2. Call `lv_tick_inc(x)` every `x` milliseconds **in a Timer or Task** (`x` should be between 1 and 10). It is required for the internal timing of LittlevGL. +2. Call `lv_tick_inc(x)` every `x` milliseconds **in a Timer or Task** (`x` should be between 1 and 10). It is required for the internal timing of LittlevGL. **It's very important that you don't call `lv_task_handler` in the same loop.** 3. Call `lv_init()` 4. Register a function which can **copy a pixel array** to an area of the screen: ```c @@ -117,7 +117,7 @@ bool touchpad_read(lv_indev_data_t * data) return false; /*Return `false` because we are not buffering and no more data to read*/ } ``` -6. Call `lv_task_handler()` periodically every few milliseconds in the main `while(1)` loop, in Timer interrupt or in an Operation system task. It will redraw the screen if required, handle input devices etc. +6. Call `lv_task_handler()` periodically every few milliseconds in the main `while(1)` loop, in Timer interrupt or in an Operation system task. It will redraw the screen if required, handle input devices etc. **It's very important that you don't call `lv_tick_inc` in the same loop.** For a detailed description check the [Documentation](https://docs.littlevgl.com/#Porting) or the [Porting tutorial](https://github.com/littlevgl/lv_examples/blob/master/lv_tutorial/0_porting/lv_tutorial_porting.c)