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docs(arm): add overview docs for Arm (#6712)

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This commit is contained in:
Gabor Kiss-Vamosi
2024-08-24 08:45:38 +02:00
committed by GitHub
parent a3e9208a88
commit e28caac406
3 changed files with 69 additions and 9 deletions
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20
docs/overview/renderers/arm2d.rst
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@@ -1,3 +1,5 @@
.. _arm2d:
==========
Arm-2D GPU
==========
@@ -7,9 +9,9 @@ Microcontrollers**. It supports all Cortex-M processors ranging from
Cortex-M0 to the latest Cortex-M85.
Arm-2D accelerates LVGL9 with two modes: **Synchronous Mode** and
**Asynchronous Mode**.
**Asynchronous Mode**.
- When **Helium** and **ACI (Arm Custom Instruction)** are available, it is recommend
to use **Synchronous Mode** to accelerate LVGL.
to use **Synchronous Mode** to accelerate LVGL.
- When Arm-2D backed 2D-GPUs are available, for example, **DMAC-350 based 2D
GPUs**, it is recommend to use **Asynchronous Mode** to accelerate LVGL.
@@ -20,12 +22,12 @@ How to Use
**********
In general:
- you can set the macro :c:macro:`LV_USE_DRAW_ARM2D_SYNC` to ``1`` and
:c:macro:`LV_DRAW_SW_ASM` to ``LV_DRAW_SW_ASM_HELIUM`` in ``lv_conf.h`` to
enable Arm-2D synchronous acceleration for LVGL.
- You can set
the macro :c:macro:`LV_USE_DRAW_ARM2D_ASYNC` to ``1`` in ``lv_conf.h`` to enable
Arm-2D Asynchronous acceleration for LVGL.
- you can set the macro :c:macro:`LV_USE_DRAW_ARM2D_SYNC` to ``1`` and
:c:macro:`LV_DRAW_SW_ASM` to ``LV_DRAW_SW_ASM_HELIUM`` in ``lv_conf.h`` to
enable Arm-2D synchronous acceleration for LVGL.
- You can set
the macro :c:macro:`LV_USE_DRAW_ARM2D_ASYNC` to ``1`` in ``lv_conf.h`` to enable
Arm-2D Asynchronous acceleration for LVGL.
If you are using
`CMSIS-Pack <https://github.com/lvgl/lvgl/tree/master/env_support/cmsis-pack>`__
@@ -47,7 +49,7 @@ LVGL (sometimes worse) for regular Cortex-M processors.
- The target processors support
`Helium <https://developer.arm.com/documentation/102102/0103/?lang=en>`__.
- The device vendor provides an arm-2d compliant driver for their
proprietary 2D accelerators and/or ACI(Arm Customized Instruction).
proprietary 2D accelerators and/or ACI (Arm Customized Instruction).
- The target device contains
`DMAC-350 <https://community.arm.com/arm-community-blogs/b/internet-of-things-blog/posts/arm-corelink-dma-350-next-generation-direct-memory-access-for-endpoint-ai>`__