Realtek RTL8195AM

Ameba is an Arduino-compatible development board for internet of things, beside WiFi connectivity, it also includes an NFC tag, and can support Ethernet via Arduino compatible headers. The brain of the board is Realtek RTL8195AM Wi-Fi SoC with ARM Cortex M3 MCU inside that includes WiFi connectivity, hardware SSL, SRAM, and flash. It provides the optimal solution for the maker community and Quadcopter, Solar Energy system, Sensor Environment, automation solutions and etc.

Highlights

- 32-bit ARM Cortex M3, up to 166MHz
- 1MB ROM, 2MB SDRAM and 512KB SRAM

Key Features

- Integrated with 802.11 b/g/n 1x1 Wi-Fi
- NFC Tag with Read/Write Function
- 10/100 Ethernet MII/ RMII/RGMII Interface
- USB OTG
- SDIO Device/SD card controller
- Hardware SSL engine
- Maximum 30 GPIOs
- 2 SPI Interfaces and support both master and slave mode
- 3 UART Interfaces including 2 HS-UART and one log UART
- 4 I2C Interfaces and support both master and slave mode
- 2 I2S/PCM Interfaces and support both master and slave mode
- 4 PWM interfaces
- 2 ADC interfaces
- 1 DAC interfaces

Pin Layout

RTL8195AM pinout (left)

/media/uploads/Archcady/pin_layout1-.jpg

Warning

Both A0 and A1 are connected to ADC_CH1
A0, A1, A2 and DAC are not capable for GPIO

RTL8195AM pinout (right)

/media/uploads/Archcady/pin_layout2.jpg

Board schematics

Electrical schematics of the Ameba board is found here in User Manual (login required)
The schematics below shows how to setup antenna of Ameba among three choices. /media/uploads/Archcady/antenna.jpg

Example Code

* Blinky example on Github

* Wifi example on Github

Technical Resources

* How to update DAP firmware

After successfully update to DAP firmware that support mbed, you could verify with "mbedls" command. For example:

>mbedls
+-------------------+----------------------+-------------+-------------+--------------------------------------------------+-----------------+
| platform_name     | platform_name_unique | mount_point | serial_port | target_id                                        | daplink_version |
+-------------------+----------------------+-------------+-------------+--------------------------------------------------+-----------------+
| REALTEK_RTL8195AM | REALTEK_RTL8195AM[0] | E:          | COM24       | 4600000002b7ec8d00000000000000000000000097969902 | 0241            |
+-------------------+----------------------+-------------+-------------+--------------------------------------------------+-----------------+

Articles

* Get Started

* Q & A

See also

* Ameba Offical Website

* Realtek Offical Website

 Buy Now


Please log in to start a discussion or ask a question.