Bo Tong BCM943341WCD1EVB evaluation board is one of the 2016 Mouser Internet of Things Innovation Design Competition, one of the special boards of the game project, and the Yongtong BCM943364WCD1_EVB WICM943364WCD1_EVB WICED WIFI development kit previously introduced before, but compared to it, It is more rich, such as the new NFC technology that applies wider low-power blue tooth in the wearable equipment, and mobile payment.
Not much nonsense, we will come directly to watch the board. The BCM943341WCD1EVB evaluation board is also a combination of the bottom plate + core module wiced module.
Among them, Wiced Module is a complete WiFi network solution, including an MCU (STM32F417 microcontroller), Bo Tong WiFi chip (BCM43341), antenna, etc. (red module in the above figure).
The function on the bottom plate includes:
Download debug interface: 20-pin JTAG interface for downloading and debugging and USB-JTAG interface
USB turn serial port: onboard MicroSB port
Extended interface: Convenient users to access various sensors and expansion boards
Reset button: WICED MODULE used to reset the board
Power Test: On-board A current test interface is used to evaluate the power consumption when Wiced Module runs the application
Power supply: Power supply or external 5V power supply via MicroSB
LEDs Lights: UART, JTAG, 3.3V, 5V
NFC antenna circuit
The specific distribution of onboard resources of the BCM943341WCD1EVB evaluation board can be refer to the figure below.
In the middle of the NFC antenna of the board and the module expansion interface, we can see the engineers that are compatible with the pads (currently not patch) and the extension interfaces of the Apple MFI certified chip and the extension interfaces can be purchased.
The extension interface on the board is defined as follows.
There is only one current detection chip on the back for Wiced Module.
The BCM943364WCD1_EVB WICM943364WCD1_EVB WICM943364WCD1_EVB WICED WIFI development kit before and the pair of panels is basically consistent. It is simply different from the Wiced Module. The BCM943341WCD1EVB evaluation board has more features, so there is also a certain extent on the circuit. Extension, for example, because NFC functions increase NFC circuit; because low-power blue-delay functions increase additional Bluetooth antenna, while other hardware circuits are basically consistent.
The BCM94341WCD1EVB evaluation board with the author is equipped with the coffer module for BCM943341WCD1_3. It is more strange that the NFC / WiFi / Bluetooth / FM function on the Wiced Module is not actually the SOC. BCM43341, but the AzureWare's AW-AH641, because the SOC specification of Haichu Technology is not found, and it is not clear whether the BCM43341 is Pin-to-PiN, but from Seeing in Wiced SDK IDE, wiced Module is at least in the same way, we can be a whole, do not need to manage individual individuals, this is not currently on powerful software, SDK, engineers can do fool-style development.
Main features of BCM943341WCD1_3 module WiFi / Bluetooth / NFC:
Dual-band 2.4 and 5GHz IEEE 802.11 A / B / G / N standard, up to 150MBPS
Support low-power Bluetooth 4.0 and Bluetooth EDR
NFC support ISO / IEC 18092, ISO / IEC21481, ISO / IEC 14443 A, B and B ', Japanese Industrial Standard (JIS) (X) 6319-4 and ISO / IEC 15693 standard
From the hardware block diagram of Wiced Module, we can see that the NFC circuit also contains an EEPROM and an NFC ESE. ESE is an embedded security chip that enables the opening of the bank card electronic cash application, such as the current hottest mobile payment, NFC payment function in Apple, Samsung, Xiaomi and other mobile phones is similar.
The development environment of the BCM943341WCD1EVB evaluation board is also the use of Boyotong's powerful free WICED SDK. It is important to note that the SDK supports the BCM94341WCD1EVB evaluation board. The version is updated to 3.1.2 and above, or we can download the latest WICED-SDK directly. - 3.5.2 is developed. The development process is the same as the previously evaluated BCM943364WCD1_EVB WICED WIFI development kit, which is no longer repeated here.
summary
Introduced the Broad Tong BCM943341WCD1EVB evaluation board for the Internet application, Based on the complete WiFi solution of Bo Tong, the STM32F417 microcontroller + AzureWare AW-AH641 set NFC / WiFi / Bluetooth / FM function in a SOC combination, internal integration Software stacks are equipped with Bo Tong's unique WICED SDK development tool (providing resources such as code routines), allowing engineers to easily learn, development.
2016Mouser Internet of Things Innovation Design Contest Official Design Square: (2106Mouser Innovation Competition Activity Address)
Boyong BCM943364WCD1_EVB WICED WIFI Development Kit
Boyong Wiced Sense Development Kit
Original declaration: This article is originally created by the panel network, declined!
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