The landlord Published in: 23:12:55 2015-12-25
[WIFI what is it?
Wi Fi is a kind of personal computers, handheld devices (such as pad, cell phone terminal wirelessly connected technologies. In fact it is a high-frequency radio signal wireless fidelity is a wireless network communication technology of the brand, by the Wi Fi alliance held. The purpose is to improve the interoperability between wireless network products based on IEEE 802.11 standard. Some people use the IEEE 802.11 series of LAN is called wireless fidelity. Even the equivalent of Wi Fi wireless Internet (Wi-Fi is an important part of WLAN).
QCA401x what is it?
QCA401x is a kind of WIFI microprocessor. The microprocessor consists of one or a few large scale integrated circuits. These circuits perform the functions of the control unit and the arithmetic logic unit.
What are the new features of QCA401x?
More interfaces, including: 8 PWMs x, 3 UART x, 2 I2C x, 2 SPI x, 8 channel analog digital converter.
Support 3.3V level power supply or battery (2.7V ~ 3.6V) direct power supply.
Support ALLJoyn.JS and HomeKit.
On chip code space up to 400KB or 800KB.
Support external SPI interface Flash.
Dual band antenna and antenna classification, covering all household bands.
Integrated secure OTP storage block, integrated hardware encryption engine to support the application of encryption and decryption, security, security, suspend and resume functions.
Commercial temperature range of 0 degrees ~85 degrees, extended temperature range -40 degrees ~115 degrees.
What are the QCA401x product specifications?
Wireless connection standard. Dual band (2.4G and 5G) 802.11a/b/g/n (bandwidth HT20/40), built-in power amplifier (+20dBm), diversity reception;
Integration of a single CPU Tensillca, support IP stack, Wi-Fi, support ThreadX operating system running user applications, support for hardware encryption engine;
RAM:1MB or ROM:1.25MB, 1.5MB, OTP:1KB;
SPI Master 2x (36MHz) + host interface SPI. I2C Master/Slave 2x. High speed UART (3Mbps), 2x low speed UART, I2S 2x audio interface, USB2.0, SDIO2.0 from the interface, eight channel ADC, integrated button controller, 8 hardware independent PWM, integrated more dedicated GPIO port;
Key power consumption indicators. Rx <65 Tx@5dbm<160 IEEE PS Ma, Ma, Na Sleep<130.
DRQFN-116pin 5.5x5.5mm, FOWLP 9x9mm package
QCA401x development environment which?
For application developers familiar with the architecture;
Simplify ALLJoyn settings and access the AJ service architecture;
Simplify access to a variety of hardware interface (GPIO port, SPI, I2C, PWM, ADC, etc.), device driver code supports C language and ES;
Equipment / platform / operating system - not related, that is: application software development and platform and operating system is not related;
QCA400x/401x environmental security (development environment) is what?
Successfully solved the problem of software authenticity and integrity;
Only allowed to execute trusted code;
Hardware store trusted root;
Software binary graphical symbols using a strong public key encryption mechanism.
QCA401x is how to design?
Main resources include:
Host interface, including USB, UART, SDIO, SPI, etc.;
Peripherals, including PWM 8x, GPIO, UARTs, BT,
- sensor, including the RGB LED light, ambient light sensor, 3D motion sensor, temperature sensor, potentiometer, EEPROM;
I2S 2x interface, audio decoder interface;
QCA401x design master