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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); lv_obj_set_style_text_color(lv_screen_active(), lv_color_hex(0xffffff), LV_PART_MAIN);
/* Create a spinner */ /* 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_set_size(spinner, 64, 64);
lv_obj_align(spinner, LV_ALIGN_BOTTOM_MID, 0, 0); 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 */ * 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 */ #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. */ /* 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) #define BUFF_SIZE (DISPLAY_WIDTH * 10 * BYTES_PER_PIXEL)
static uint8_t buf_1[BUFF_SIZE]; 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 - In your ``main`` function, after your peripherals (SPI, GPIOs, LCD
etc) have been initialised, initialise LVGL using :cpp:func:`lv_init`, 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_init();
lv_display_t *display = lv_display_create(WIDTH, HEIGHT); /* Create the display */ 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_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. */ /* 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); lv_obj_set_style_text_color(lv_screen_active(), lv_color_hex(0xffffff), LV_PART_MAIN);
/* Create a spinner */ /* 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_set_size(spinner, 64, 64);
lv_obj_align(spinner, LV_ALIGN_BOTTOM_MID, 0, 0); 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 - Finally, create the ``my_flush_cb`` function to output the frame
buffer to your LCD. The specifics of this function will vary buffer to your LCD. The specifics of this function will vary
depending on which MCU features you are using. Below is an example depending on which MCU features you are using. Below is a simple
for a typical MCU interface. example of a parallel LCD interface, adjust this to suit your specific
display and MCU capabilities.
.. code-block:: c .. 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; uint16_t * color_p = (uint16_t *)px_map;