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2017 Site Electronics Zhigang Innovation Contest: http://www.eefocus.com/activity/mouser2017_contest/signup
The current updated competition evaluation board is:
Silicon Labs Thunderboard Sense Development Board
CYPRESS PSOC 4000s Capsense development board
LPCXPRESSO54608 development board
Adi evAl-adiCup3029 development board
With the rapid rise of the Internet of Things industry, WiFi technology is more important. At present, this is the only connection with the Internet wireless communication technology, and its importance is not allowed. The global WiFi program supplier is very much, how to choose a WiFi that is suitable for you to project is a problem that each engineer must face. Usually, the engineer will choose whether to use a single WiFi SOC single-chip solution according to the function of the actual project or WiFi network processing chip + external microcontroller program, the former can have lower power consumption, higher integration, and then If you can achieve more features, more flexible match, but no matter what choice, engineers still adjust the circuit structure according to the actual function, power consumption, applicability, cost and other factors to complete the best WiFi scheme optimization.
Ti CC3200 Launchpad
Today, I've recommended a new WiFi single-chip solution development kit for TI - Ti CC3200 launchpad, which is the industry's first built-in WiFi-function wireless MCU product, which is formed with the previous CC3100 (evaluation) of Ti. Obvious comparison, becoming two WiFi solutions. The Ti CC3200 packaging is still a classic red black shape of launchpad.
The accessories inside the CC3200 launchpad development kit are simple, a CC3200 launchpad development board, a document, a MicroSB cable, and two additional jumping can facilitate engineers debugging.
Ti launchpad board is a simple entry-level assessment board of TI, the board itself is not complicated, let's take a look at what is the characteristics of the CC3200 LaunchPad onboard resources?
Ti CC3200 LaunchPad board typography:
Ti CC3200 single-chip WiFi solution
40-Pin LaunchPad Standard Extension Pin Interface
MicroSB interface can be used to power and debug
FTDI JTAG emulator, support serial port Flash programming
Support 4 lines JTAG and 2 line SWD
2 buttons and 3 LED lights are available for users
Acceleration sensor and temperature sensor
Current measuring interface and external JTAG interface
Battery power supply as low as 2.3V
MCU development board recommended:
EFM32GG Development Suite A high-level energy consumption monitoring system is a great starting point for the EFM32TM Giant Gecko 32-bit microcontroller.
LM3S9D96 Development Kit A Stellaris MCU configures LM3S9D96 with fully integrated Ethernet, CAN and USB OTG / host / devices.
ZynQ-7000 Development Board A development board based on a Xilinx programmable full-system level chip (AP SOC) architecture and is closely integrated with dual-core ARM CORTEX-A9 processor.
The entire CC3200 launchpad is divided into the debugging section with the CC3200 wireless control communication part. The board is equipped with a temperature and acceleration sensor, with wireless communication, so that the developer implements simple sensor data acquisition and transmission; CC3200 launchpad is equipped with Boosterpack extension interface (2 * 20pin ) Compatible with CC3200ModLaunchXL and CC3200Audboost expansion boards to achieve fast prototyping, such as wireless music boxes, when using, it is necessary to pay attention to preventing insertion and connecting pins. The specific application block diagram of the board is as follows:
It can be seen that the debug section CC3200 LaunchPad uses FTDI chip FT2232D, which enables serial port and debugging, eliminating the need for external debugger during development. Due to the single-chip wireless communication solution used by the board, we can also see that the hardware solution of the CC3200 is very simple. The electronic components needed outside the outside are very simple, and the circuit design is very simple.
From the system block diagram of CC3200, the CC3200 is mainly divided into 3 parts: Applying the MCU subsystem subsystem + WiFi network processor subsystem + power management subsystem.
Applying the MCU subsystem contains:
An ARM Cortex-M4 kernel, the frequency is 80MHz
Chip integration flexible embedded RAM for code and data, and ROM with external serial flash boot loader and peripheral drivers
Support a quick parallel camera interface, I2S, SD / MMC, UART, SPI, I2C, and Four Channel Mode Converter (ADC)
Wi-Fi network processor subsystem:
A Wi-Fi Internet-ON-A-CHIP contains an additional special ARM MCU that exempts the processing burden of application MCU
Contains 802.11 b / g / N radio frequency, baseband, and Mac with powerful encryption engine to achieve fast, security internet connection supporting 256-bit encrypted
Support base station, access point, and Wi-Fi direct mode
Support WPA2 personal and business security and WPS2.0
Wi-Fi on-chip internet includes embedded TCP / IP and TLS / SSL stack, HTTP server, and multiple Internet protocols
TX Power: 18.0 dBm @ 1 DSSS / 14.5 DBM @ 54 OFDM
RX sensitivity: -95.7 dBm @ 1 DSSS / -74.0 dBm @ 54 OFDM
Power management subsystem:
VBAT wide voltage mode: 2.1 to 3.6V
Sleep in real time clock (RTC): 4μA
RX traffic (MCU activation): 59 mA @ 54 orthogonal frequency division multiplexing (OFDM)
TX traffic (MCU activation): 229 mA @ 54OFDM, maximum power
Idle connection (MCU in LPDS): 695 μA @ DTIM = 1
TI CC3200 LaunchPad In addition to these basic onboard resources, special attention is required in use, and the use of some hops and interfaces. For example, when debugging simulation, as shown in the figure below, use the onboard FTDI emulator, we need to close the J10's hopping, when using an external emulator, just need to remove all J10's hopping, connect The JTAG pin signal on one side of the CC3200, and if you only need to use SW debugging, just use the TCK, the TMC pin.
TI CC3200 launchPad onboards can be used directly, in addition to, the user button and the LED configuration, the maximum function can be said to be the temperature on the board and the acceleration of the two sensors, as shown below, In the design of the sensor circuit, TI CC3200 LaunchPad also uses a compatible design, we can implement the acquisition of sensor data through the I2C or SPI interface.
J2, J3 Earth Hat Removes data delivery by using the CC3200 I2C interface, where the J4 hop is an interrupt signal of the acceleration sensor, and connects the CC3200 GPIO13.
MCU development board recommended:
EFM32GG Development Suite A high-level energy consumption monitoring system is a great starting point for the EFM32TM Giant Gecko 32-bit microcontroller.
LM3S9D96 Development Kit A Stellaris MCU configures LM3S9D96 with fully integrated Ethernet, CAN and USB OTG / host / devices.
ZynQ-7000 Development Board A development board based on a Xilinx programmable full-system level chip (AP SOC) architecture and is closely integrated with dual-core ARM CORTEX-A9 processor.
Used
There are several ways to power the TI CC3200 launchpad. 5V Microusb input interface is powered by the DDO conversion through the onboard, and we can also power the external portable power supply, such as the 1.5 battery access of the two AA. The 3.3V input interface in the figure below, at this time, it is necessary to remove the hop on the DDO power interface on the onboard, as shown below.
For convenience, we will use the MicroSB interface directly. The Factory Factory of the CC3200 LaunchPad card is WiFi uses AP mode, which is mainly implemented by shorting the VCC and P58 signal pins, as shown below.
If you carefully observe it, you can find that the red LED D7 flashes after the board is flashing 3 times. At this time, we can find the hotspot AP of CC3200 Launchpad through other WiFi devices, as an example of laptop, as shown below.
Connect to MysImpleLink-03fa64, open the MysImPleLink.net URL to enter the CC3200 configuration interface, including the introduction of the board, WiFi configuration, etc., you can find a few WiFi-controlled small applications in the last Demos tab .
These applications include currently very popular smart home concepts, security, etc., such as gate alarm settings in the lower graph, to control the function of the function through WiFi, monitor whether the door is opened by acceleration sensors.
In addition to the door alarm routine, CC3200 LaunchPad also provides applications such as sprinkling, temperature monitoring, and the application development of actual scenes.
Development environment
Like the CC3100 launchpad previously evaluated by the panel network, the CC3200 supports a variety of IDE tools, while the CC3200 SDK provided by the official website can support CCS 6.0.1, IAR 7.30 and GCC IDE / Compiler, to download before the board is developed, first download Download in Ti official website, install the appropriate package.
Then, you can use the routine code in the package, further development, the specific development process is similar to CC3100 LaunchPad (evaluation), this article will no longer be repeated.
If an engineer is more interested in WiFi solutions, you can also refer to the evaluation article of other WiFi modules of the board:
Low power consumption, easy to expand Atmel WinC1500-XSTK WIFI development kit evaluation
Helping intelligent hardware development - Freescale QFM-2202A WiFi module evaluation
Choose suitable WiFi scheme - Ti CC3100 Boosterpack Development Module Review
Open World - Discover Wi-Fi Development Board Reviews
Ultra-simple Wi-Fi connection - Qingke "Lightning Kit" to play the experience
summary
Introduced TI's latest industry's first built-in WiFi feature, the characteristics, functionality, functionality, functionality, functionality, functionality, functions of the CC3200 launchpad, have supported hardware and software development tools, complete information, both beginners or senior engineers Can be used quickly. The CC3200 is a wireless MCU that has the industry's first built-in WiFi function. The integrated function is powerful, including 3 major subsystems: Application MCU subsystem (ARM Cortex-M4 processor), WiFi network processor subsystem, and power management subsystem, greatly reduces The electronic components of the external circuit, and the interior integrated proprietary ARM MCU can be fully responsible for the Wi-Fi and Internet protocol processing, reduce the burden on the application of the MCU, and the excellent power management subsystem makes the CC3200 excellent low power mode, For example, the current required in RTC sleep mode is less than 4μA. Throughout the WiFi module on the market, there are many excellent solutions, and the CC3200 will undoubtedly have a great temptation for engineers who need miniaturization, simplification, and fast prototype design. Do you want DIY a smart product? Speaking of the WiFi solution using CC3200 to speed up design.
MCU development board recommended:
EFM32GG Development Suite A high-level energy consumption monitoring system is a great starting point for the EFM32TM Giant Gecko 32-bit microcontroller.
LM3S9D96 Development Kit A Stellaris MCU configures LM3S9D96 with fully integrated Ethernet, CAN and USB OTG / host / devices.
ZynQ-7000 Development Board A development board based on a Xilinx programmable full-system level chip (AP SOC) architecture and is closely integrated with dual-core ARM CORTEX-A9 processor.
Original declaration: This article is originally created by the panel network, declined! "
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