What is I2C in LPC2148?
I2C stands for Inter-Integrated Circuit and also sometimes also referred as TWI i.e. Two Wire Interface since it uses only 2 wires for data transmission and synchronization. The two wires of I2C Bus consists of: 1. Data Line which is SDA i.e. Serial Data. 2.
CAN interfacing with LPC2148?
The Interfacing SPI-CAN with LPC2148 program is very simple and straight forward, which controls the LPC2148 Advanced Development Board from another LPC2148 Advanced Development Board using CAN via SPI. Some delay is occurring when a single data is sent through SPI. C programs are written in Keil software.
How many I2C controllers are there in arm LPC2148?
LPC2148 supports two fast I2C-buses (I2C0 & I2C1). I2C bus interface that may be configured as Master, Slave or Master/Slave. Supports programmable clock to allow adjustment of multiple data speed: standard (100 kbps), fast (400 kbps) and high speed (3.4 Mbps).
What is I2C interface used for?
The I2C protocol is used to establish communication between two or more ICs (Integrated Circuits), hence why it’s known as Inter-Integrated Circuit (I2C) communication. However, it should be noted that I2C could also be used as a communication protocol between two ICs that are located on the same PCB.
Which is the fastest bus in lpc2148 microcontroller?
Advanced High performance Bus (AHB)
The ARM7 core is connected to the Advanced High performance Bus (AHB) • This is the Fastest Bus in ARM7 core.
Is I2C synchronous or asynchronous?
synchronous protocol
I2C is a synchronous protocol, meaning that the communicating parties do not need to agree to a certain speed beforehand – think at the asynchronous serial lines like RS-232, where no communication can succeed if the parties don’t use the same baud rate.
What is I2C arm?
ARM Tutorial. I2C (Inter Integrated Circuit) also known as TWI (Two wire Interface) is a bus interface connection that is used in many devices such as Sensors, RTC and EEPROM. Unlike SPI this protocol only uses two wires to establish the connection and hence known as Two wire interface.
Which register holds the unused bits of I2C serial transmission in arm lpc2148 microcontroller?
I2C0DAT (I2C0 Data Register) It contains the data to be transmitted or received. This register can be read or written to only when SI = 1.
Who uses I2C?
I2C is a serial protocol for two-wire interface to connect low-speed devices like microcontrollers, EEPROMs, A/D and D/A converters, I/O interfaces and other similar peripherals in embedded systems. It was invented by Philips and now it is used by almost all major IC manufacturers.
Is I2C faster than SPI?
I2C is a two wire protocol and SPI is a four wire protocol. I2C supports clock stretching and SPI does not have clock stretching. I2C is slower than SPI.
What is the difference between I2C and can?
CAN is a message based protocol, designed specifically for automotive applications for the communication between the main host controller and other devices (also now in industrial automation ). It can be transferred to long distances. I2C is a short distance communication used between the ICs in a same circuit.
What is the flash memory for LPC2148?
512-kB
The LPC2148 microcontroller has 512-kB on-chip FLASH memory as well as 32-kB on-chip SRAM.