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docs(PXP): update PXP for rotation only feature

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Signed-off-by: Cosmin-Daniel Radu <cosmin.radu_1@nxp.com>
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Cosmin-Daniel Radu 2024-10-01 14:29:14 +03:00 committed by Gabor Kiss-Vamosi
parent 6dd7b3a978
commit da74d6983b
1 changed files with 6 additions and 4 deletions
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10
docs/integration/chip/nxp.rst
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@ -36,7 +36,9 @@ PXP accelerator
Basic configuration: Basic configuration:
^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^
- Select NXP PXP engine in "lv_conf.h": Set :c:macro:`LV_USE_DRAW_PXP` to `1`. - Select NXP PXP engine in "lv_conf.h": Set :c:macro:`LV_USE_PXP` to `1`.
- In order to use PXP as a draw unit, select in "lv_conf.h": Set :c:macro:`LV_USE_DRAW_PXP` to `1`.
- In order to use PXP to rotate the screen, select in "lv_conf.h": Set :c:macro:`LV_USE_ROTATE_PXP` to `1`.
- Enable PXP asserts in "lv_conf.h": Set :c:macro: `LV_USE_PXP_ASSERT` to `1`. - Enable PXP asserts in "lv_conf.h": Set :c:macro: `LV_USE_PXP_ASSERT` to `1`.
There are few PXP assertions that can stop the program execution in case the There are few PXP assertions that can stop the program execution in case the
c:macro: `LV_ASSERT_HANDLER` is set to `while(1);` (Halt by default). Else, c:macro: `LV_ASSERT_HANDLER` is set to `while(1);` (Halt by default). Else,
@ -48,16 +50,16 @@ Basic initialization:
^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^
PXP draw initialization is done automatically in :cpp:func:`lv_init()` once the PXP draw initialization is done automatically in :cpp:func:`lv_init()` once the
PXP is enabled, no user code is required: PXP is enabled as a draw unit or to rotate the screen, no user code is required:
.. code:: c .. code:: c
#if LV_USE_DRAW_PXP #if LV_USE_DRAW_PXP || LV_USE_ROTATE_PXP
lv_draw_pxp_init(); lv_draw_pxp_init();
#endif #endif
During PXP initialization, a new draw unit `lv_draw_pxp_unit_t` will be created During PXP initialization, a new draw unit `lv_draw_pxp_unit_t` will be created
with the additional callbacks: with the additional callbacks, if :c:macro:`LV_USE_DRAW_PXP` is set to `1`:
.. code:: c .. code:: c