MSP430_C7_Course Lesson1_MCU

7/27/2019 MSP430_C7_Course Lesson1_MCU

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http://s653.photobucket.com/albums/uu259/rockc4/FanLED/?action=view&current=mat_1-Copy.png


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CU LC B NGHIN CU KHOA HC KHOA IN-IN THBCHKHOA TP. H CH MINH


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1 MCUs & MSP430G2553

2

C programming & IDE CCS v5.2

3 GPIO in MSP430

4 Discussion & Homework


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Requirement:

a. Blink a LED every 1s

b. Turn on a led when button is pushed

c. Timer, ADC, UART, Interrupt, SPI, I2C

d.

.

Solution: M icro Control ler Unit

- Integrated circuits

- Programmable


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Core:

8b, 16b,

32b,64b

GPIO

Timer

ADC

UART

SPI

P:MSP430, 8051,PIC,ARM,

Peripherals

C:

MSP430, LPC1114,

PIC16F887,


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- Simple:hardware & software

- Enough:price ,peripherals,

- Developing TI Vietnam

16kB Flash

512B RAM

2 Timer_A3s 8 Ch. Comp_A+ 8 Ch. ADC10

USCI


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http://www.ti.com/product/msp430g2553
http://www.ti.com/product/msp430g2553http://www.ti.com/product/msp430g2553http://www.ti.com/product/msp430g2553


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Package:

TSSOP: 20 Pin, 28 Pin

PDIP: 20 Pin

QFN: 32 Pin

Low Supply-Voltage Range

o 1.8 V to 3.6 V

Ultra-Low PowerConsumption

16-Bit RISCArchitecture, 62.5-ns Instruction Cycle Time

Basic Clock Module Configurationso Internal Frequencies up to 16 MHz With Four Calibrated Frequency

o Internal Very-Low-Power Low-Frequency (LF) Oscillator

o 32-kHz Crystal

o External Digital Clock Source

http://www.ti.com/product/msp430g2553

Quad flat no lead: dn

Plastic dual in-line package:2 hng

Thin shrink small outline package
http://www.ti.com/product/msp430g2553http://www.ti.com/product/msp430g2553http://www.ti.com/product/msp430g2553


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Embedded Emulation

6-pin eZ430

Connector

Part and Socket

Crystal Pads

Power Connector

Reset ButtonLEDs and Jumpers

P1.0 & P1.6

P1.3 Button

Chip

Pinouts

USB Emulator

Connection

http://www.ti.com/tool/msp-exp430g2
http://www.ti.com/tool/msp-exp430g2http://www.ti.com/tool/msp-exp430g2http://www.ti.com/tool/msp-exp430g2http://www.ti.com/tool/msp-exp430g2http://www.ti.com/tool/msp-exp430g2


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MCUDebugger

Debugger

MCU


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Integrated development environment for TI embedded

processors Includes debugger, compiler, editor, simulator, OS

The IDE is built on the Eclipse open source software framework

Extended by TI to support device capabilities

Integrate additional tools OS application development tools (Linux, Android)

Code analysis, source control

Linux support

Low cost! $445 or $495 (!) -> Free code size limited for students


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MSP430G2553

CCS IDE

General

PurposeInput/

Output


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- Main MSP430G2553

- Chunb CCS, datasheet- Tuts : to project, GPIO

- Main MSP430G2553

- IDE

- GPIO

- Nhy Led- Nt nhn-LCD

- Keypad

-Led matrix

-Led 7 segment


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Cc Thanh ghi ny qui nhch lm vic cho cc chn bao gmPxSEL v PxSEL2

VD: Ta mun port 1 l GPIO th ta thchinlnhnh sau:

P1SEL = 0;P1SEL2 = 0;

Lu : Interrupts P1 v P2 sb v hiu ha khi PxSEL=1

(!) Xem thm Datasheet: Port Schematics

0 0


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Thanh ghi ny qui nhloi ng vo ra cho ccchn GPIO

Mcnhttc cc chn l input (0),khi cni thnh output (1), ta t

Bit tngng trn thanh ghi l 1.

VD: P1DIR = 0x01 //pin P1.0 is output


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Thanh ghi ny cho php tt hoc m ch

pullup/pulldown resistor cho cc chn GPIO.Mcnh cc bit ca thanh ghi ny l 0.


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Khi ta cnc gi trt cc chn GPIO input, ta sc

bit tngng trn thanh ghi PxIN

Lu l ta phi chc rng bit tngng ca GPIOtrn thanh ghi PxDIR vn l 0 (input) trc khicPxIN.


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Khi ta munxutin p trn cc chn Output, ta st gi

trtngng vo cc thanh ghi PxOUT (logic 1 -> VCC, logic0 -> 0V)

Trong trnghp thanh ghi PxREN qui nhGPIO chpullup/pulldown resistor th PxOUT qui nh:

Lu l ta phi chc rng bit tng ng ca GPIO trnthanh ghi PxDIR c set l 1 (output) trc khixutmclogic ra.


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thchinxut/nhp trn 1 chn (Pin):

- tng gi tr cho thanh ghi PxDIR: 1:output; 0: input- tchcnngca pin l GPIO hay cc chcnng khc quathanh ghi PxSEL

- Xut tn hiubng cch ghi gi tr0hoc1 vo thanh ghiOUT ca port tngng (vd: P1OUT)- c gi trca chn bng cch cmc logic trn thanh ghiIN ca port tngng (vd: P1IN)

- Khi cnintr ko ln/xung, tng gi trca bit trncc thanh ghi PxREN v PxOUT


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#include

// hay //Khai bo bin ton ccunsigned int a

//Khai bo chng trnh convoid chuong_trinh_con(void)

{

//chng trnh con y}


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#define BIT0 (0x0001)

#define BIT1 (0x0002)#define BIT2 (0x0004)

// . .

#define BITE (0x4000)

#define BITF (0x8000)


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Pin: low level --> LED On

Pin: high level --> LED Off


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//Blink a led connected with P1.0

#include // or

void main(void)

{

// unsigned int i; // declare variables

WDTCTL = WDTPW + WDTHOLD; // Stop watch dog timerP1DIR |= BIT0 + BIT6; // Set P1.0 and P1.6 to output direction

while(1)

{

P1OUT ^= BIT0 + BIT6; // Toggle P1.0 and P1.6 using exclusive-OR

__delay_cycles(1000000); // Delay 1000000 Machine Cycles (MC=1us)// in IAR: _delay_cycles(1000000);

}

}


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LED 7 Segment

LED matrix 8x8

LCD 16x2

Keypad 4x4


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MSP430_C7_Course Lesson1_MCU

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