Soon, the 2016 Mouser Internet of Things Innovation Design Competition is about to open, and there will be many kits for network applications for netizens to apply as project development. To this end, the pavilion network specially found these boards first, let everyone know, and it is also preheating for the recent contest. Today, I will introduce you to BCM943364WCD1_EVB Wiced WiFi Development Kit.
Everyone in Boyong should be unfamiliar, this is a world-renowned wired and wireless communication semiconductor, and is now acquired by Anhua. The BCM943364WCD1_EVB WICED WIFI development kit consists of the bottom plate and Wiced Module (BCM943364WCD1_2).
Among them, Wiced Module is a complete WiFi network solution, including an MCU (STM32F411 microcontroller), Bo Tong WiFi chip (BCM43364), antenna, etc. (red modules in the above figure).
The function on the bottom plate includes:
Download Debug Interface: The 20-pin JTAG interface for downloading and debugging and the USB-JTAG interface (USB-JTAG interface is implemented by the onboard FTDI FT2232)
USB turn serial port: onboard MicroSB port, also achieved by FTDI FT2232
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
The specific distribution of onboard resources can be refer to the figure below.
The extension interface on the board is defined as follows.
In addition, on the back of the board, we can see a pad compatible with the pad (currently not patching) through the Apple MFI certified chip, and the need for engineers can purchase welding themselves.
As far as the BCM943364WCD1_EVB WICED WIFI development kit itself, the core is of course the above WiFi module, but for the original network application, the role of the floor is still indispensable for some Internet of Things to be started or wants based on the prototype version, and the onboard function buttons, LED indicators, debuggers, etc. can help engineers are familiar with and expand the function of Internet applications as soon as possible.
WiFi related development board recommended:
ISP Wi-Fi Module Programmer provides a simple programming interface for network WiFi modules and SOC and is connected to a computer via a USB interface.
WiFi / 802.11 Development Kit A demo board using Microchip WiFi module MRF24WG0MA and application microcontroller PIC32.
Wunderbar Development Kit A main module WiFi is connected to the RELAYR cloud, and the sensor module is automatically connected to the main module with Bluetooth low power (BLE).
Remove the shield on the WiFi chip, we can see this BCM43364 WiFi chip in Bo Tong, the circuit is relatively simple, but people are more confused is how WiFi antenna will have two?
From the official BCM43364 specification, this is a single 2.4GHz frequency band WiFi chip, on which two antennas are not available. Turning out a lot of information, this type of module itself has several series. It adopts the different WiFi chips in Bo Tong, and even the BLE function, such as the BLE function, the BLM94343wwcd1_evb development kit, integrated is the BCM4343WIFI / BLE combination chip, Obviously, in the ideal design, if WiFi and Bluetooth share antennas, they cannot work simultaneously (if they do not consider mutual interference, they can be received at the same time), so, the design of the selection of double antennas is to do, BCM4343 is also a product that is compatible with BCM43364 in the package, so in design, the circuit is basically consistent (the basic consideration is a change of BOM, anyway, this material cost is nothing, not to mention the development board itself There is no huge amount), so that two antennas make people confused.
BCM43364 is a combined chip, which integrates IEEE802.11b / g / n mac / baseband / radio, PA, LNA, internal RF switches, not only reduces the cost of the entire WiFi program, but also further reduces the layout space of PCB, Adapt to the structure smaller electronic product. BCM43364 supports SDIO and SPI interfaces. In terms of power control, the BCM43364 integrates an ARM Cortex-M3 processor and storage space including the entire WLAN subsystem function, which can be built in the case where the main application processor is wakeful as possible. The processor implements the WLAN function to further reduce the functionality of the entire WiFi scheme.
In addition, the primary microcontroller on the module can also understand, STM32F411, this is the high-performance processor series of ST, integrated ART accelerator, the main features:
ARM Cortex-M4 processor, up to 100MHz frequency, 512KB Flash, 128KB SRAM
I2C * 3, USART * 3, SPI * 5, I2S * 5, SD / SDIO * 1, USB OTG * 1
12-digit ADC * 1, temperature sensor * 1, maximum support 32GPIOS
How to develop
First, you have to install the IDE tools for Bo Tong, which is a free, powerful IDE tool in Boyong, which can be applied to the current mainstream operating system, such as Windows, Mac OS X, and Linux, the main features:
Open source compilation system and tool chain based on GNU.
Based on the Eclipse CDT interface, seamlessly integrate OpenOCD and GDB downloaders, debuggers, etc.
Integrated complete software stack, including advanced security and network capabilities, such as SSL / TLS, IPv4 / IPv6 networks, and MDNS / Bonjour.
Many rich product applications
WiFi related development board recommended:
ISP Wi-Fi Module Programmer provides a simple programming interface for network WiFi modules and SOC and is connected to a computer via a USB interface.
WiFi / 802.11 Development Kit A demo board using Microchip WiFi module MRF24WG0MA and application microcontroller PIC32.
Wunderbar Development Kit A main module WiFi is connected to the RELAYR cloud, and the sensor module is automatically connected to the main module with Bluetooth low power (BLE).
BCM943364WCD1_EVB WICED WIFI development kit requires Wiced-SDK-3.3.1-Ide-Installer.exe or more, software can download in Bo Tong (need to register the account of the blog community).
After entering the Bo Tong Forum, select the Wiced Wi-Fi section.
Click the appropriate IDE tool to download.
At the same time, the forum has rich related materials developed by Wiced WiFi, and users can download it according to their needs.
The corresponding driver is also installed during the WICED SDK IDE installation. After the installation is complete, you can watch the USB turn serial port and the USB JTAG port. This is also very nice, which will drive all to the installation. In the package, the time for the engineer's extra time to find the driving.
If you have installed the WICED-SDK IDE tool for Bo Tong, you may not need to download the EXE installation package, just download the Wiced-SDK package.
I will import the previous IDE tool, of course, the author did not test it, just installed the previous version of the friend to try. The introduction method can be achieved by new -. 1882. New Project implementation of the existing code.
After importing the SDK is done, we can find the DEMO routine about the BCM943364WCD1_EVB WICED WIFI development kit in the IDE tool interface or convenient.
However, friends who have come into contact with the wiced IDE tool may take a certain time for the first time. If it is familiar with the Elipse tool, it will be very easy to get started. However, when the author loads related DEMO compile, there is a mistake, prompting the relevant dependencies, do not know if it is set. About the development board more content will be contracted in the next Broadcom BCM943341WCD1EVB evaluation board.
summary
Introduced the BCM943364WCD1_EVB WICM943364WCD1_EVB WICM943364WCD1_EVB WICED WIFI development kit for the Internet application, Based on the complete WiFi solution of Bo Tong, the combination of STM32F411 microcontroller + Bhange BCM43364 WiFi chip, the internal integrated software stack, etc. The WICED SDK Development Tool (providing resources such as code routines) allows engineers to easily learn, develop. The Internet of Things sensing equipment based on WiFi schemes. In short, Broadcom BCM943364WCD1_EVB WICED WIFI development kit is a "semi-finished product" that can quickly perform prototype design, you can learn, if you don't mind, you can use it directly to develop products, it is as simple as it is. (2106Mouser Innovation Competition Activity Address)
Mouser Internet of Things Innovation Design Competition can apply for project development board evaluation
WiFi related development board recommended:
ISP Wi-Fi Module Programmer provides a simple programming interface for network WiFi modules and SOC and is connected to a computer via a USB interface.
WiFi / 802.11 Development Kit A demo board using Microchip WiFi module MRF24WG0MA and application microcontroller PIC32.
Wunderbar Development Kit A main module WiFi is connected to the RELAYR cloud, and the sensor module is automatically connected to the main module with Bluetooth low power (BLE).
Original declaration: This article is originally created by the panel network, declined!
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