The ARM9-LPC2929 STICK BOARD is specifically designed to help students to master the required skills in the area of embedded systems. The board is designed in such way that all the possible features of the microcontroller will be easily used by the students. The board supports Keil µVision 4 compilers with Keil ULink2.
NXP Microcontroller, ARM9-LPC2929 stick board is proposed to smooth the progress of developing and debugging of various designs encompassing of speed 32-bit Microcontrollers. It integrates CAN, LIN, UART, ADC, PWM, I2C, SPI, Timer, Interrupt etc., to create a stand-alone versatile test platform.
ARM9 Stick Board having more no of I/O line for user access able. Its consists of 64 GPIO pins, CAN0/1, LIN1, I2C0/1, UART0/1, SPI0/1, USB, ADC0/1/2, PWM, Timer and more features. Users can easily access the controller and develop more application by using ARM9 Stick board.
ADC (Analog to Digital Converter)
ADC is used for converting the analog signal into digital signal, where the analog signal in the form of voice (continuous signal) or DC signal. ARM9 Stick board consists of 5V reference ADC and 3.3V reference ADC.
The circuit and Pin diagram shows how to interface the LCD to microcontroller and display the ADC value. The 2x16 character LCD interface card with supports both modes 4-bit and 8-bit interface, and also facility to adjust contrast of LCD using trim pot (R3).
In 8-bit interface 11 lines needed to create 8-bit interface; 8 data lines (D0 – D7), three control lines, address bit (RS), read/write bit (R/W) and control signal (EN).
Here the analog signal is 0V to 5V variable DC signal. For varying the trim pot (R4) get the digital output in the form of decimal value (0000 to 1023) at LCD Display.
Circuit and Pin Diagram for ARM9 Stick Interface
Example for ARM9 Stick Interface with ADC_LCD
C Program to display a ADC value in LCD using ARM9 Stick Board
Title: Program to ADC_LCD display
#include <LPC29xx.H> //Register Description Header for LPC2929