REALTEK AMB82HW AMB82-Mini Board User Guide

REALTEK AMB82HW AMB82-Mini Board

AMB82 HW User Guide

AMB82-MINI is a development board designed for 6235Z-RRB module. 6235Z-RRB is a dual-frequency Wi-Fi + Bluetooth SoC module based on
RTL8735B chip. RTL8735B (also named AmebaPro-II) is a highly ntegrated low power 802.11 a/b/g/n Wireless LAN (WLAN) and Bluetooth camera SoC. It combines ARM v8M MCUs (500MHz and 2.23 DMIPS/MHz), WLAN MAC, a 1T1R capable WLAN baseband, Bluetooth MAC, RF, audio codec, ISP and H264/H265 encoder in a single chip. It provides useful high-speed connectivity and interfaces, such as USB 2.0 host, SD host interfaces. It also provides a bunch of
configurable GPIOs which are configured as digital peripherals for different application and control usage.

Characteristic

• MCU Features
  • Real-M500 (TM9) clock frequency up to 500MHz
  • I-Cache 32KB/D-Cache 32KB
  • eXecute In Place (XIP) on NOR flash
  • Internal Memory Supports 768KB ROM
• Graphic Processing
  • Digital resolution scaling down
  • Multiple stream outputs and various formats: NV12, RGB888
  • Each stream has individual OSD overlay
  • Support motion detection and private mask
• Video Encoding
  • Max 5-megapixel resolution for H.264/H.265 encoding
  • H.264 Baseline/Main/High profiles, levels 4.1
  • H.265 Main and Main Still profiles, levels 4
  • JPEG/MJPEG Baseline and Max 5-megapixel resolution for JPEG encoding
  • Multiple streams real-time H.265/H.264/JPEG encoding
  • H265 2M@30fps + H265 1M@30fps

Main Parameters

• The following are the main parameters of the AMB82-MINI development board:

Power supply selection

• The board supports a power supply range of 3.3V to 5V DC.

Electrical characteristics

The electrical characteristics of the board are not specified in the user manual.

Appearance size

The dimensions of the board are not specified in the user manual.

LED indicator and button description

The user manual does not provide detailed information about the LED indicator and button description.

Assembly

The following are the assembly instructions for the AMB82-MINI development board:

How to assemble IPEX RF antenna

1. Locate the IPEX RF connector on the board.
2. Insert the IPEX RF antenna into the connector.
3. Secure the antenna in place by tightening the connector nut.

How to assemble image sensor module

1. Locate the image sensor module connector on the board.
2. Insert the image sensor module into the connector.
3. Secure the module in place by tightening the connector
   .

Pin definition
The pin definitions of the board are not specified in the user manual.

Product Related Module

The user manual does not provide detailed information about the product- related module.
For any further assistance, please contact the manufacturer or refer to the product datasheet.

COPYRIGHT
©2023 Realtek Semiconductor Corp. All rights reserved. No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means without the written permission of Realtek Semiconductor Corp.

DISCLAIMER
Realtek provides this document ‘as is’, without warranty of any kind. Realtek may make improvements and/or changes in this document or in the product described in this document at any time. This document could include technical inaccuracies or typographical errors.

TRADEMARKS
Realtek is a trademark of Realtek Semiconductor Corporation. Other names mentioned in this document are trademarks/registered trademarks of their respective owners.

ESD Protection
AMB82-MINI Development Board is electrostatic sensitive device, ESD protection measures should be taken when carrying.

Product Overview

AMB82-MINI is a development board designed for 6235Z-RRB module. 6235Z-RRB is a dualfrequency Wi-Fi + Bluetooth SoC module based on RTL8735B chip.
RTL8735B (also named AmebaPro-II) is a highly integrated low power 802.11 a/b/g/n Wireless LAN (WLAN) and Bluetooth camera SoC. It combines ARM v8M MCUs (500MHz and 2.23 DMIPS/MHz), WLAN MAC, a 1T1R capable WLAN baseband, Bluetooth MAC, RF, audio codec, ISP and H264/H265 encoder in a single chip. It provides useful high speed connectivity interfaces, such as USB 2.0 host, SD host interfaces. It also provides a bunch of configurable GPIOs which are configured as digital peripherals for different application and control usage.

Characteristic
MCU Features

• Real-M500 (TM9) clock frequency up to 500MHz
• I-Cache 32KB/D-Cache 32KB
• eXecute In Place (XIP) on NOR flash
• Internal Memory
• Supports 768KB ROM
• Supports 512KB RAM
• Supports external flash interface
• Supports MCM embedded 64MB/128MB DDR2 Memory

ISP Features

• Advanced temporal and spatial noise reduction(3DNR)
• Support major brands of DOL-HDR or Staggered-HDR sensors
• Support MIPI CSI-2 data lane
• Support Auto Banding, Auto Exposure, Auto White Balance
• Black level compensation and dead pixel cancellation
• Lens shading compensation
• Advanced contrast adjustment and sharpness enhancement
• Programmable color matrix and gamma table
• Digital WDR
• Image enhancement(brightness, contrast, saturation, hue and sharpness)
• ISP tuning tool

Graphic Processing

• Digital resolution scaling down
• Multiple stream outputs and various formats: NV12, RGB888
• Each stream has individual OSD overlay
• Support motion detection and private mask

Video Encoding

• Max 5-megapixel resolution for H.264/H.265 encoding
• H.264 Baseline/Main/High profiles, levels 4.1
• H.265 Main and Main Still profiles, levels 4
• JPEG/MJPEG Baseline and Max 5-megapixel resolution for JPEG encoding
• Multiple streams real-time H.265/H.264/JPEG encoding
• H265 2M@30fps + H265 1M@30fps
• CBR/VBR rate control

Audio

• Built-in Audio Codec
• 1 way Audio analog output for earphone
• 1 way Audio analog input on board

WIFI Features

• 802.11 a/b/g/n compatible 1×1, 2.4GHz/5GHz
• 802.11e QoS Enhancement (WMM)
• Wi-Fi WEP, WPA, WPA2, WPA3, WPS. Open, shared key, and pair-wise key authentication services
• Supports low power Tx/Rx for short-range application
• Frame aggregation for increased MAC efficiency (A-MSDU, A-MPDU)
• Low latency immediate High-Throughput Block Acknowledgement (HT-BA)

Bluetooth Features

• Bluetooth Low Energy (BLE) 5.1
• Supports LE secure connections
• Supports LE scatternet
• Supports 1 Master/1 Slave
• Crypto engine: MD5, SHA-1, SHA2-224, SHA2-256, HMAC, AES
• ECDSA, ED25519
• RSA

SD Card Features

• Support SD version 3.0
• Support card capacity up to 2TB
• Support 3.3V and 1.8V operating voltage

Peripheral Interfaces

• Support UART、I2C、SPI interface for external device
• Support PWM interface with configurable duration and duty cycle from 0 ~ 100%
• Support ADC channel with 12-bit mode
• Maximum 59 programmable GPIOs

Main Parameters

Power supply selection
You can choose one of the following methods to supply power for AMB82-MINI:

• Micro USB interface power adapter, recommend the rated current ≧ 1A
• External 5V power supply on V_USB and GND pin.

Electrical characteristics

Appearance size

Led indicator and button description

There are three LED indicators and two buttons on AMB82-MINI, as shown in following figure:

Led indicator and button| LED status or button function| Remarks
---|---|---

Power LED

|

5V power indicator

| When 5V power is supplied,

the LED is on.

LED1| Blue LED by user defined| Controlled by PF9
LED2| Green LED by user defined| Controlled by PE6
Reset Button| Reset system| /

Load code Button

|

Set system to load code mode

| Press Button into load code

mode.

Assembly

There are two accessories for AMB82-MINI, one is IPEX RF antenna and the other is image
sensor module.

How to assemble IPEX RF antenna

• Step 1 : Keep AMB82-MINI at back side, hold the cable connector as shown in following figure:
• Step 2 : Combine cable connector with PCB connector, please check they are set firmly
• Step 3 : Push cable connector at center location vertically. The connectors mating action is completed when click sound could be heard.

How to assemble image sensor module

• Step 1 : Keep AMB82-MINI at top side,
• Step 2 : Open sensor connector carefully
• Step 3 : Combine Image sensor module with sensor connector, please check they are set firmly.
• Step 4 : Close the connector carefully and make sure that the lens of sensor module is clear.

Pin definition

AMB82-MINI has 30 pin and 5 test point for user, as shown in the diagram of pins.

GPIO

pin

| GPIO

INT

| ADC| PWM| UART| SPI| I2C| Other
---|---|---|---|---|---|---|---
PF5| ✓|  |  |  | SPI1_MISO|  |
PF6| ✓|  | ✓|  | SPI1_SCLK|  |
PF7| ✓|  | ✓|  | SPI1_MOSI|  |
PF8| ✓|  | ✓|  | SPI1_SS|  |
PF11| ✓|  | ✓|  |  |  |
PF12| ✓|  | ✓|  |  |  |
PF13| ✓|  | ✓|  |  |  |
PF14| ✓|  | ✓|  |  |  |
PF15| ✓|  | ✓|  |  |  |
PF2| ✓| A2|  |  |  | I2C1_SDA|
PF1| ✓| A1|  |  |  | I2C1_SCL|
PF0| ✓| A0|  |  |  |  |
PE4| ✓|  |  |  | SPI_SS| I2C_SDA|
PE3| ✓|  |  |  | SPI_MOSI| I2C_SCL|
PE2| ✓|  |  | SERIAL3_RX| SPI_MISO|  |
PE1| ✓|  |  | SERIAL3_TX| SPI_SCLK|  |
PD18| ✓|  |  |  |  |  |
PD17| ✓|  |  |  |  |  |
PD16| ✓|  |  | SERIAL2_RX|  |  |
---|---|---|---|---|---|---|---
PD15| ✓|  |  | SERIAL2_TX|  |  |
PD14| ✓|  |  |  |  |  |
PA2| ✓| A6|  | SERIAL1_TX|  |  |
PA3| ✓| A7|  | SERIAL1_RX|  |  |
PF9| ✓|  | ✓|  |  |  | LEB_B (blue)
PE6| ✓|  |  |  |  |  | LED_G (green)
PF4| ✓|  |  | LOG_TX|  |  |
PF3| ✓|  |  | LOG_RX|  |  |
PA1| ✓| A5|  |  |  | I2C2_SDA| SWD_CLK
PA0| ✓| A4|  |  |  | I2C2_SCL| SWD_DATA
PF10| ✓|  |  |  |  |  |
AOUT|  |  |  |  |  |  | Audio Output for

earphones

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