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docs(stm32): Fix errors in FreeRTOS Example Code (#8163)

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Tom
2025-05-05 20:14:33 +10:00
committed by GitHub
parent c4abd989eb
commit 7a392665f7
1 changed files with 8 additions and 8 deletions
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docs/src/details/integration/chip/stm32.rst
+8 -8
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@@ -68,7 +68,7 @@ the *main.c* file. \* Create some frame buffer(s) as global variables:
lv_obj_set_style_text_color(lv_screen_active(), lv_color_hex(0xffffff), LV_PART_MAIN);
/* Create a spinner */
lv_obj_t * spinner = lv_spinner_create(lv_screen_active(), 1000, 60);
lv_obj_t * spinner = lv_spinner_create(lv_screen_active());
lv_obj_set_size(spinner, 64, 64);
lv_obj_align(spinner, LV_ALIGN_BOTTOM_MID, 0, 0);
@@ -157,10 +157,9 @@ A minimal example using STM32CubeIDE, HAL, and CMSISv1 (FreeRTOS).
* Static or global buffer(s). The second buffer is optional */
#define BYTES_PER_PIXEL (LV_COLOR_FORMAT_GET_SIZE(LV_COLOR_FORMAT_RGB565)) /* will be 2 for RGB565 */
/* TODO: Declare your own BUFF_SIZE appropriate to your system. */
static lv_color_t buf_1[BUFF_SIZE];
#define BUFF_SIZE (DISPLAY_WIDTH * 10 * BYTES_PER_PIXEL)
static uint8_t buf_1[BUFF_SIZE];
static lv_color_t buf_2[BUFF_SIZE];
static uint8_t buf_2[BUFF_SIZE];
- In your ``main`` function, after your peripherals (SPI, GPIOs, LCD
etc) have been initialised, initialise LVGL using :cpp:func:`lv_init`,
@@ -173,7 +172,7 @@ A minimal example using STM32CubeIDE, HAL, and CMSISv1 (FreeRTOS).
lv_init();
lv_display_t *display = lv_display_create(WIDTH, HEIGHT); /* Create the display */
lv_display_set_flush_cb(display, my_flush_cb); /* Set a flush callback to draw to the display */
lv_display_set_buffers(disp, buf_1, buf_2, sizeof(buf_1), LV_DISPLAY_RENDER_MODE_PARTIAL); /* Set an initialized buffer */
lv_display_set_buffers(display, buf_1, buf_2, sizeof(buf_1), LV_DISPLAY_RENDER_MODE_PARTIAL); /* Set an initialized buffer */
/* Register the touch controller with LVGL - Not included here for brevity. */
@@ -187,7 +186,7 @@ A minimal example using STM32CubeIDE, HAL, and CMSISv1 (FreeRTOS).
lv_obj_set_style_text_color(lv_screen_active(), lv_color_hex(0xffffff), LV_PART_MAIN);
/* Create a spinner */
lv_obj_t * spinner = lv_spinner_create(lv_screen_active(), 1000, 60);
lv_obj_t * spinner = lv_spinner_create(lv_screen_active());
lv_obj_set_size(spinner, 64, 64);
lv_obj_align(spinner, LV_ALIGN_BOTTOM_MID, 0, 0);
@@ -237,12 +236,13 @@ A minimal example using STM32CubeIDE, HAL, and CMSISv1 (FreeRTOS).
- Finally, create the ``my_flush_cb`` function to output the frame
buffer to your LCD. The specifics of this function will vary
depending on which MCU features you are using. Below is an example
for a typical MCU interface.
depending on which MCU features you are using. Below is a simple
example of a parallel LCD interface, adjust this to suit your specific
display and MCU capabilities.
.. code-block:: c
void my_flush_cb(lv_display_t * display, const lv_area_t * area, uint8_t * px_map);
void my_flush_cb(lv_display_t * display, const lv_area_t * area, uint8_t * px_map)
{
uint16_t * color_p = (uint16_t *)px_map;