This document summarizes experiments conducted using the mbed NXP LPC11U24 microcontroller and covers the following topics: Experiment 1 introduces the LPC11U24 microcontroller and its features. Experiment 2 demonstrates blinking an internal LED using the LPC11U24. Experiment 3 controls external LEDs in a counter pattern. Experiment 4 interfaces an LCD and Experiments 5-6 control 7-segment displays. Experiment 7 interfaces an ADC. The document also introduces the LPC214x microcontroller and covers using the Keil and Proteus software tools for 6-bit counter and 7-segment display projects.

1. WORKSHOP ON RTOSFOR SYSTEM
INTEGRATION
Submitted by:
Name : jayadeepu.dadi

2. Experiment - 1
Introduction to mbed NXP
LPC11U24
• The mbed NXP LPC11U24 Microcontroller in particular
is designed for prototyping low cost USB devices,
battery powered applications and 32-bit ARM®
Cortex™-M0 based designs.
MISO (Master In Slave Out) - The Slave line for sending
data to the master,
MOSI (Master Out Slave In) - The Master line for sending
data to the peripherals,
SCK (Serial Clock) - The clock pulses which synchronize
data transmission generated by the master

3. • // control bus
DigitalOut rs(p34);
DigitalOut rw(p35);
DigitalOut en(p36);
• // busy flag
DigitalIn busy(p28);
• // data bus
BusOut DataPins(p21,p22,p23,p24,p25,p26,p27,p28);
• NXP LPC11U24 MCU
Low power ARM® Cortex™-M0 Core
48MHz, 8KB RAM, 32KB FLASH
USB Device, 2xSPI, I2C , UART, 6xADC, GPIO
• Prototyping form-factor
40-pin 0.1" pitch DIP package, 54x26mm
5V USB, 4.5-9V supply or 2.4-3.3V battery
Built-in USB drag 'n' drop FLASH programmer
• mbed.org Developer Website
Lightweight Online Compiler
High level C/C++ SDK
Cookbook of published libraries and projects
• Running at frequencies of up to 50 MHz - Nested
Vectored Interrupt Controller (NVIC) - Non
Maskable Interrupt (NMI) - System tick timer
• Memory: - Up to 32 kB on-chip flash program
memory.
• Up to 4 kB on-chip EEPROM data memory; byte
erasable and byte programmable.
• Up to 10 kB SRAM data memory.
• 16 kB boot ROM. ROM-based USB drivers. Flash
updates via USB supported. ROM-based 32-bit
integer division routines
• //wait_ms(5);

4. Experiment -
2
Blinking of internal led using lpc11u24
The mbed Microcontrollers are a series of ARM microcontroller development boards designed for
rapid prototyping.

5. #include "mbed.h"
DigitalOut myled(LED1);
int main()
{
while(1)
{
myled = 1;
wait(0.6);
myled = 0;
wait(0.6);
}
}

6. Experiment - 3
Counter control using led’s
#include "mbed.h"
BusOut myleds(LED1,LED2,LED3,LED4);
DigitalIn enable(p25);
int main()
{
unsigned char j=0;
while(1)
{
if(enable)
{
myleds=j;
wait(0.2);
j++;
if(j==15)
j=0;
}
}
}

7. Experiment - 4
Lcd interfacing with
lpc11u24

10. Interfacing seven segment display with LPC 11u24
Experiment - 5

11. Common cathode

13. Multiple seven segment display
Experiment - 6

15. Experiment -
7
ADC interfacing

18. Introduction to lpc 214x
• LPC2141 microcontroller is based on 32 bit ARM7TDMI-S CPU
• Due to their tiny size and low power consumption,
LPC2141/2/4/6/8 are ideal for applications where
miniaturization is a key requirement, such as access control
and point-of-sale.
• Its applications are mainly on Industrial control, Medical
systems, Access control, point of sale, communication
gateway, general purpose applications

20. Introduction to keil and proteus
six- bit binary counter control

21. Six bit binary control using proteus software

22. Seven segment using keil software

23. Seven segment display using proteus software