Interfacing LCD With LPC1769

September 11, 2017 | Author: Gurudatta Palankar | Category: Source Code, Computer File, Library (Computing), Email, Computer Engineering
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Interfacing LCD With LPC1769......

Description

2016 Interfacing 2x16 LCD with NXP LPC1769 using LPCXpresso

Author: Gurudatta Palankar Reviewers: Version: 1.0

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Introduction: LPCXpresso™ is a new, low-cost development platform available from NXP supporting NXP's ARM-based micro-controllers. The platform is comprised of a simplified Eclipse-based IDE and low-cost target boards which include an attached JTAG debugger. LPCXpresso™ is an end-to-end solution enabling engineers to develop their applications from initial evaluation to final production. Step 1: Open LPCXpresso IDE

Figure 1

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Step 2: Before writing a code, we have to Import some Library Files to the Workspace. Click on Import projects on Quickstart Panel on the bottom left of the window.

Figure 2

Step 3: Browse file, open the LPC1000 folder.

Figure 3

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Step 4: Select the appropriate archive file. Let us select LPCXpresso176x_cmsis2. We can select CMSIS CORE library that include LPC17xx.h header file.

Figure 4

Step 5: After selecting you will be able to see the following libraries files. Let us select specific one.

Figure 5

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Step 6: Now we will be able to see those libraries in the workspace.

Figure 6

Step 7: Now we can start creating our new project. Goto File >> New >> Project. Select LPCXpresso C project.

Figure 7

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Step 8: Select LPC1769, C Project and give name to your project. Select target MCU as LPC1769.

Figure 5

Step 9: Now select CMSIS Core library. Click on Next and keep all the other configurations as default and Finish.

Figure 9

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Step 10: Now we can see our project onto the workspace. Now by double clicking on LCD_display.c file, we can start writing code.

Figure 10

Step 11: Write a code as shown below.

Figure 11

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

CODE: #ifdef __USE_CMSIS #include "LPC17xx.h" #endif #include "lcd.h" int main(void) { char str[] = "www.tenettech.com"; volatile static int i, j; loop: i=0; init_lcd(); lcd_backlight_on(); lcd_gotoxy( LINE1, 1); while(str[i]!='\0') { lcd_putchar(str[i]); for(j=0; j> Source File.

Figure 12

Step 13: Save the Source File name with .c file extension.

Figure 13

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Step 14: Write or paste the Source File (Library).

Figure 14

Step 15: Similarly add the Header File.

Figure 15

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Step 16: Save the Header File name with .h file extension.

Figure 16

Step 17: Write or paste the Header File (Library).

Figure 17

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Step 18: After writing code and adding libraries, Build the project by clicking on Build LCD_display on the Quickstart Panel on the bottom left of the window.

Figure 18

Step 19: Now, if all goes well connect the Micro B cable to LPC1769 and connect it to your computer. To upload the project file, click on the Program flash.

Figure 19

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Step 20: Now select the Project file LCD_display.axf. We can find it in our project folder.

Figure 20

Step 21: Now this window shows we have finally dumped our project onto LPC1769.

Figure 21

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Hardware Requirements:    

LPC1769 Board 2x16 Character LCD breadboard Jumper wires

16x2 character LCD pin-out

Minimum connection required

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Commands for LCD Sl. no. Instruction

Hex

Decimal

1

Function Set: 8-bit, 1 Line, 5x7 Dots

0x30

48

2

Function Set: 8-bit, 2 Line, 5x7 Dots

0x38

56

3

Function Set: 4-bit, 1 Line, 5x7 Dots

0x20

32

4

Function Set: 4-bit, 2 Line, 5x7 Dots

0x28

40

5

Entry Mode

0x06

6

6

Display off Cursor off (clearing display without clearing DDRAM content)

0x08

8

7

Display on Cursor on

0x0E

14

8

Display on Cursor off

0x0C

12

9

Display on Cursor blinking

0x0F

15

10

Shift entire display left

0x18

24

11

Shift entire display right

0x1C

30

12

Move cursor left by one character

0x10

16

13

Move cursor right by one character

0x14

20

14

Clear Display (also clear DDRAM content)

0x01

1

15

Set DDRAM address or cursor position on display

128 + address*

16

Set CGRAM address or set pointer to CGRAM location

0x80 + address * 0x40 + address **

64 + address**

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

Interfacing 16x2 character LCD with LPC1769 pin-out

RS

P2.3

RW

P2.4

EN

P2.5

D4

P0.4

D5

P0.5

D6

P0.6

D7

P0.7

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

OUTPUT:

Figure 18

For product link: 1.

http://www.tenettech.com/product/1548/lpc1769-lpcxpresso-board

2.

http://www.tenettech.com/product/2442/16-x-2-character-lcd-displaywith-backlight-jhd162a-green

3.

http://www.tenettech.com/product/6068/power-supply-breakout-board

For more information please visit: www.tenettech.com For technical query please send an e-mail: [email protected]

# 9/3, 2nd floor, SreeLaksmi Complex, opp, to Vivekananda Park, Girinagar, Bangalore - 560085, Email: [email protected], Phone: 080 - 26722726

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