Question

Design an embedded system using MSP430 to control a traffic light system. It is included a complete design description of a traffic light system to help you in your design. Show the hardware schematics and the software needed to complete your design.

Answer 1

» Interfacing .f traffic light with MSP430". About use 430 the reloped by Temas instrumen , It is 16 Bil-Meant of It integrate on board PS2, VART, ADC, pom. Temparature sensor Relay, Buzzer, Ihr seven segment, ..etc. colore of traffic light control: colors Red, green, orange (yellow, In the typical sequence q colored lightes. " Illumination of the green light allows traffic to proceed in the direction denoted' e illumination of the yellow lamber light denoting, if safe to do so, prepare to stop short of the intersection, (3) allumination of the red signal phonibily any beffic foam processding * The traffic light controller consist oq 12 No. 5 point LED's are arranged by clane's in MSP430. Development board Each lane has Go (Green), listen (yellow), Stop (Red) pin Connections: section Direction pins LEDS North P1.0 Rii Din -stop (red) P12 - Listen (Yelow) Dis - Go (Green) P12 P1.3 04 Stop (Red) listen (yellow) WEST P14 Dis P1.5 DIE to (freeh)

Direction pin's NORTH Plot Pog Pro SOOTH LED's 017-stop(Red) Big - Listen Cyellow) Pia-freen (Go) Dao - Stop (Red) listen (yellow) EAST P7? WEST EAST 1 P7.2 D21 SOOTH Pz3 D22- Go (Green) fren Awaz Go usten Cyellow) stop (Red). Circuit Diagramy Du Pio PIZ Bus Di3 D14 KH Dis P.3 s Ping P Pus 4 w Klic Tenas Instrumenty KAD Pl.6 w Who 3 this Dia P1.7 Pro o K 271 D2 P7.2 P22 K 197.3

software 'C' programming #include <stdio.h> void Delay Ms CintMs) Unsigned inti; unsigned int Value [16] = {ox 0001_0x0002_0x0004, 0x0008 OX 00 10 0 x0029, 0x0040, 0X00g 0x0100, 0x0200 O xogoo OX1000, 0X2000 0x4000, Oxgooo int main(void) O X04-00 }; mu WDTCTL = cost peo + WDT HOLD; // Stop Catchdog timer PIDIR |- oxFF; 1=0xFF; I set Pl.o=P1.7 to output direction PF DIR I- OxoF; Il ser Pro - P7.3 to output direction while (1) { Plour 50X0q Prout = 0X03) Delay Ms(8006); POUT 20x89 Pot = 0X02 Delay Ms ( 3000): Proot =0x61 Prout = 0X02) Delay Ms (8000); Prout =0x51 PHOUT = 0x02 Delay (3000): Prout -0x4c; Dzout 20x02;

Deloy ks ( 8000), P, out =0x44; Pzout = 0X02) Delay Ms (3000); Pour > 0X491 P7001 = 0x08 Delays ( Sooo) Plout 20749; Pout -04 Delay Ms (3000)' Lo void beloymts Cent Ms int i; while (Asso) { for (izo; i<104; i++) As --; }