From 67a6ae2459c87f94fd494352242f663907b0dfd1 Mon Sep 17 00:00:00 2001
From: Deepak Khatri <lorforlinux@beagleboard.org>
Date: Tue, 31 Dec 2024 18:31:30 +0530
Subject: [PATCH] Add design information WIP
---
.../03-design-and-specifications.rst | 42 +++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/boards/pocketbeagle2/03-design-and-specifications.rst b/boards/pocketbeagle2/03-design-and-specifications.rst
index 05ffa0a1..18955503 100644
--- a/boards/pocketbeagle2/03-design-and-specifications.rst
+++ b/boards/pocketbeagle2/03-design-and-specifications.rst
@@ -10,19 +10,32 @@ followed by discussing each hardware design element in detail.
Block Diagram and Overview
**************************
+The below figure provides a high-level overview of the PocketBeagle2 hardware architecture, illustrating
+the main components and their interconnections. This includes the System on Chip (SoC), power management,
+memory, connectivity interfaces, and other peripheral components.
+
.. figure:: images/hardware-design/block-diagram.png
+ :width: 1200px
:align: center
:alt: PocketBeagle2 Block Diagram
PocketBeagle2 Block Diagram
+The following figure illustrates the I2C tree of the PocketBeagle2, showing the connections between the I2C
+master and various I2C slave devices on the board.
+
.. figure:: images/hardware-design/i2c-tree.png
+ :width: 1200px
:align: center
:alt: I2C tree
I2C tree
+The following figure shows the power tree of the PocketBeagle2, detailing the power distribution from the
+main power sources to various components on the board.
+
.. figure:: images/hardware-design/power-tree.png
+ :width: 1200px
:align: center
:alt: Power tree
@@ -33,36 +46,65 @@ Block Diagram and Overview
System on Chip (SoC)
*********************
+The PocketBeagle2 is powered by the AM6232 SoC, which is a high-performance, low-power processor
+designed for embedded applications. The AM6232 integrates dual ARM Cortex-A53 cores, a
+Cortex-M4F core, and various peripherals to support a wide range of functionalities. It is
+optimized for power efficiency and performance, making it suitable for applications requiring
+robust processing capabilities while maintaining low power consumption. The AM6232 SoC functional
+block diagram below provides a detailed view of the internal architecture of the System on Chip. It
+highlights the various functional blocks such as the CPU cores, memory controllers, peripheral
+interfaces, and other integrated components. This diagram is essential for understanding how
+the SoC manages data flow and interacts with other hardware components on the PocketBeagle2 board.
+
.. figure:: images/hardware-design/soc-functional-block-diagram.png
:align: center
:alt: SoC functional block diagram
SoC functional block diagram
+Decoupling capacitors are used to filter out noise and provide a stable power supply to the SoC. They
+help in maintaining the integrity of the power signals by smoothing out voltage fluctuations and transient
+spikes, ensuring reliable operation of the SoC and preventing potential malfunctions due to power instability.
+
.. figure:: images/hardware-design/soc-dcaps.png
:align: center
:alt: SoC decoupling capacitors
SoC decoupling capacitors
+The following figure shows the DDR controller of the SoC, which manages the communication between the
+processor and the DDR memory. It ensures efficient data transfer and memory access, playing a crucial
+role in the overall performance of the system.
+
.. figure:: images/hardware-design/soc-ddr-controller.png
:align: center
:alt: SoC DDR controller
SoC DDR controller
+The following figure shows the power capacitors used for the SoC. These capacitors are crucial for
+maintaining stable power delivery to the SoC, filtering out noise, and ensuring reliable operation
+by smoothing out voltage fluctuations.
+
.. figure:: images/hardware-design/soc-power-caps.png
:align: center
:alt: SoC power capacitors
SoC power capacitors
+The following figure shows the power distribution for the SoC, detailing how power is supplied to
+various components within the SoC to ensure stable and efficient operation.
+
.. figure:: images/hardware-design/soc-power.png
:align: center
:alt: SoC power
SoC power
+The following figure shows the VSS (Ground) connection for the SoC. This connection is crucial
+for providing a common reference point for all the electrical signals and ensuring the proper
+operation of the SoC by stabilizing the voltage levels.
+
.. figure:: images/hardware-design/soc-vss.png
:align: center
:alt: SoC VSS (Ground) connection
--
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