CAN
http://techiscafe.blogspot.de/
ISO 15765
Vehicle Communication Interface/ J2534 API
CanPassThru.dll
CanPassThru or also called J2534 is an interface standard and was designed by SAE (Society of Automotive Engineers).
Its purpose is to create an API (Application Programming Interface) between User-applications and physical CAN-Hardware.
http://www.boschdiagnostics.com/testequipment/diagnostics/Pages/default.aspx
http://www.etas.com/en/products
http://www.drewtech.com/products/Mongoose/mongooseiso.html
I2C
http://www.electroons.com/blog/2013/01/hello-world I2C EEPROM interfacing with STM32F4 Discovery
USB
Voltage Droop
USB allows users to plug and unplug USB devices while the PC is still in operation.
When an USB device is plugged into a port, inrush current occur as the newly plugged device’s internal bypass capacitor charges to its full potential. This current is drawn from the USB VBUS power plane of the motherboard and causes the VBUS to sag momentarily. This sag is referred to as droop.
TCP/IP
keywords :
DHCP, Dynamic Host Configuration Protocol
NAT, Networw address Translation
Hide NAT
Telnet
SSH, Secure Shell
TCP/IBluetooth vs Wi-Fi
Bluetooth, standardized as IEEE 802.15.1, is a wireless technology standard for exchanging data over short distances (using short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and mobile devices, creating personal area network (PANs) with high levels of security. Created by telecom vendor Ericsson in 1994, it was originally conceived as a wireless alternative to RS-232 data cables. It can connect several devices, overcoming problems of synchronization.
Bluetooth and Wi-Fi (the brand name for products using IEEE.802.11 standards) have some similar applications: setting up networks, printing, or transferring files. Wi-Fi is intended as a replacement for cabling for general local area network access in work areas. This category of applications is sometimes called wireless local area network (WLAN). Bluetooth was intended for portable equipment and its applications. The category of applications is outlined as the wireless personal area network (WPAN). Bluetooth is a replacement for cabling in a variety of personally carried applications in any setting and also works for fixed location applications such as smart energy functionality in the home (thermostats, etc.).
Wi-Fi is a wireless version of a common wired Ethernet network, and requires configuration to set up shared resources, transmit files, and to set up audio links (for example, headsets and hands-free devices). Wi-Fi uses the same radio frequencies as Bluetooth, but with higher power, resulting in higher bit rates and better range from the base station. The nearest equivalents in Bluetooth are the DUN profile, which allows devices to act as modem interfaces, and the PAN profile, which allows for ad-hoc networking.
RF
On the 433MHz band are a lot of uncertified products that should never have been put on the market. The 868MHz band is slightly better. The 2.4GHz is comming to be cluttered with cheap bad RF quality products too.
868MHz is not so overloaded as the 433 MHz bandwidth.
There are so many wireless devices out there so that it is impossible not to interfere with another device.
bluetooth or zigbee module are both more reliable
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SCI – Serial Communication Interfaces RS-232, RS-422, RS-485
SSI – Synchronous Serial Communication Interface I2C, SPI, SSC, ESSI
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Modem / ADSL / Dial-up / ISP
A palavra Modem vem da junção das palavras modulator e demodulador. É um dispositivo eletrónico que modula um sinal digital numa onda analógica, pronta a ser transmitida pela linha telefónica, e que demodula o sinal analógico e reconverte-o para o formato digital original. Utilizado para conexão à internet, BBS, ou a outro computador.
Os modems ADSL diferem dos modems para acesso dial-up porque não precisam converter o sinal de digital para analógico e de analógico para digital porque o sinal é sempre digital (ADSL – Asymmetric Digital Subscriber Line)
dial-up vs ADSL
A grande diferença para os acessos dial-up é que os modems de ADSL utilizam uma banda mais alargada. Os modems dial-up apenas utilizavam a banda destinada à voz, enquanto os modems ADSL funcionam em frequências mais elevadas do espectro da linha, deixando o canal de voz desimpedido
An Internet service provider (ISP, also called Internet access provider) is a business or organization that offers users access to the internet and related services. Many but not all ISPs are telephone companies or other telecommunication providers.
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MOST
MOST (Media Oriented Systems Transport) is a high-speed multimedia network technology optimized by the automotive industry. It can be used for applications inside or outside the car. The serial MOST bus uses a ring topology and synchronous data communication to transport audio, video, voice and data signals via plastic optical fiber (POF) (MOST25, MOST150) or electrical conductor (MOST50, MOST150) physical layers.
MOST technology is used in almost every car brand worldwide, including Audi, BMW, Hyundai, VW, Jaguar, Land Rover, Porsche ,Toyota, and Volvo. SMSC and MOST are registered trademarks of Standard Microsystems Corporation (“SMSC”), now owned by Microchip Technology.
Interface USB / I2C
http://www.harbaum.org/till/i2c_tiny_usb/index.shtml
http://www.paintyourdragon.com/?p=43
CH341T component
FT2232H Component
Techs it easy 