This book provides a complete intermediate-level discussion of microcontroller programming using
the C programming language. It covers both the adaptations to C necessary for targeting an
embedded environment, and the common components of a successful development project.
C is the language of choice for programming larger microcontrollers (MCU), those based on 32-bit
cores. These parts are often derived
from their general-purpose
counterparts, and are both as
complex and feature-rich. As a result, C (and C++) compilers are necessary and readily available for
these MCUs.
是初學(xué)入們，嵌入式的好教材！@簡單易懂
The PCA9517 is a CMOS integrated circuit that provides level shifting between lowvoltage (down to 0.9 V) and higher voltage (2.7 V to 5.5 V) I2C-bus or SMBus applications.While retaining all the operating modes and features of the I2C-bus system during thelevel shifts, it also permits extension of the I2C-bus by providing bidirectional buffering forboth the data (SDA) and the clock (SCL) lines, thus enabling two buses of 400 pF. Usingthe PCA9517 enables the system designer to isolate two halves of a bus for both voltageand capacitance. The SDA and SCL pins are over voltage tolerant and arehigh-impedance when the PCA9517 is unpowered.
The PCA9519 is a 4-channel level translating I2C-bus/SMBus repeater that enables theprocessor low voltage 2-wire serial bus to interface with standard I2C-bus or SMBus I/O.While retaining all the operating modes and features of the I2C-bus system during thelevel shifts, it also permits extension of the I2C-bus by providing bidirectional buffering forboth the data (SDA) and the clock (SCL) lines, thus enabling the I2C-bus or SMBusmaximum capacitance of 400 pF on the higher voltage side. The SDA and SCL pins areover-voltage tolerant and are high-impedance when the PCA9519 is unpowered.
libpcap is a system-independent interface for user-level packet capture. libpcap provides a portable framework for low-level network monitoring. Applications include network statistics collection, security monitoring, network debugging, etc.
Libnet is a cross-platform library aimed at game developers. It has an abstract high level API, which encourages developers to make their games portable across platforms and network types
