LPC Low pin Count Demo-board (sw)

Experiment med PICkit2 och "Low pin Count Demo" -board¶

Krets PIC16F690 [IMAGE] LPC-schema Kontakt J1¶

[IMAGE] Low Pin Count User's Guide [IMAGE] PICkit 2 Microcontroller Programmer User's Guide¶

[IMAGE]¶

Low pin Count Demo Board Kontakt J1 LPC ASCII-grafik: lpc.txt¶

Vårt testprogram: Play a melody ... Kodexempel för PIC16F690:¶

mel690.c lookup.c lookup2.c¶

Hello world! - Tänd en LED Kodexempel för PIC16F690:¶

¶

/* helloled.c PICkit 2 Lesson 1 Light up a LED */ /* Low pin count demo board J1 ___________ ___________ 1 RA5 | \/ | 2 RA4 +5V---|Vdd 16F690 Vss|---GND 3 RA3 ---|RA5 RA0/AN0/(PGD)|-<-RP1 4 RC5 ---|RA4 RA1/(PGC)|--- 5 RC4 SW1---|RA3/!MCLR/(Vpp) RA2/INT|--- 6 RC3 ---|RC5/CCP RC0|->-DS1 7 RA0 ---|RC4 RC1|->-DS2 8 RA1 DS4-<-|RC3 RC2|->-DS3 9 RA2 |RC6 RB4| 10 RC0 |RC7 RB5/Rx| 11 RC1 |RB7/Tx RB6| 12 RC2 |________________________| 13 +5V 14 GND */ /* B Knudsen Cc5x C-compiler - not ANSI-C */ #include "16F690.h" #pragma config |= 0x00D4 void main( void) { TRISC.0 = 0; PORTC.0 = 1; while(1) { nop(); } } ¶

helloled.c¶

Blinka med lysdioden! ¶

/* blinkled.c PICkit2 Lesson 2 Blink a LED */ /* Low pin count demo board J1 ___________ ___________ 1 RA5 | \/ | 2 RA4 +5V---|Vdd 16F690 Vss|---GND 3 RA3 ---|RA5 RA0/AN0/(PGD)|-<-RP1 4 RC5 ---|RA4 RA1/(PGC)|--- 5 RC4 SW1---|RA3/!MCLR/(Vpp) RA2/INT|--- 6 RC3 ---|RC5/CCP RC0|->-DS1 7 RA0 ---|RC4 RC1|->-DS2 8 RA1 DS4-<-|RC3 RC2|->-DS3 9 RA2 |RC6 RB4| 10 RC0 |RC7 RB5/Rx| 11 RC1 |RB7/Tx RB6| 12 RC2 |________________________| 13 +5V 14 GND */ /* B Knudsen Cc5x C-compiler - not ANSI-C */ #include "16F690.h" #pragma config |= 0x00D4 void delay10( char n); void main( void) { TRISC.0 = 0; while(1) { PORTC.0 = 1; delay10(200); PORTC.0 = 0; delay10(200); } } void delay10( char n) /* Delays a multiple of 10 milliseconds using the TMR0 timer Clock : 4 MHz => period T = 0.25 microseconds 1 IS = 1 Instruction Cycle = 1 microsecond error: 0.16 percent */ { char i; OPTION = 7; do { i = TMR0 + 39; /* 256 microsec * 39 = 10 ms */ while ( i != TMR0) ; } while ( --n > 0); } ¶

blinkled.c¶

Rinnande ljus! ¶

/* rotateled.c PICkit2 Lesson 3 Rotate LED light */ /* Low pin count demo board J1 ___________ ___________ 1 RA5 | \/ | 2 RA4 +5V---|Vdd 16F690 Vss|---GND 3 RA3 ---|RA5 RA0/AN0/(PGD)|-<-RP1 4 RC5 ---|RA4 RA1/(PGC)|--- 5 RC4 SW1---|RA3/!MCLR/(Vpp) RA2/INT|--- 6 RC3 ---|RC5/CCP RC0|->-DS1 7 RA0 ---|RC4 RC1|->-DS2 8 RA1 DS4-<-|RC3 RC2|->-DS3 9 RA2 |RC6 RB4| 10 RC0 |RC7 RB5/Rx| 11 RC1 |RB7/Tx RB6| 12 RC2 |________________________| 13 +5V 14 GND */ /* B Knudsen Cc5x C-compiler - not ANSI-C */ #include "16F690.h" #pragma config |= 0x00D4 #include "delays.c" void delay10( char n); void main( void) { TRISC = 0; char led_state = 1; while(1) { Carry = led_state.3; led_state = rl(led_state); PORTC = led_state; delay10(200); } } ¶

rotateled.c delays.c ( delays.h )¶

Analoga spänningar - AD-omvandlaren ¶

/* adblink.c PICkit2 Read pot RP1 with AD AN0 and blink LED DS1 */ /* Low pin count demo board J1 ___________ ___________ 1 RA5 | \/ | 2 RA4 +5V---|Vdd 16F690 Vss|---GND 3 RA3 ---|RA5 RA0/AN0/(PGD)|-<-RP1 4 RC5 ---|RA4 RA1/(PGC)|--- 5 RC4 SW1---|RA3/!MCLR/(Vpp) RA2/INT|--- 6 RC3 ---|RC5/CCP RC0|->-DS1 7 RA0 ---|RC4 RC1|->-DS2 8 RA1 DS4-<-|RC3 RC2|->-DS3 9 RA2 |RC6 RB4| 10 RC0 |RC7 RB5/Rx| 11 RC1 |RB7/Tx RB6| 12 RC2 |________________________| 13 +5V 14 GND */ /* B Knudsen Cc5x C-compiler - not ANSI-C */ #include "16F690.h" #pragma config |= 0x00D4 #include "delays.c" void delay( char ); void main( void) { TRISA.0 = 1; TRISC.0 = 0; char time; bit DS1_led; /* AD setup */ ANSEL.0 = 1; ADCON1 = 0b0.001.0000; /* AD conversion clock 'fosc/8' */ /* 0.x.xxxx.x.x ADRESH:ADRESL is 10 bit left justified x.0.xxxx.x.x Vref is Vdd x.x.0000.x.x Channel 00 (AN0) x.x.xxxx.0.x Go/!Done start later x.x.xxxx.x.1 Enable AD-converter */ ADCON0 = 0b0.0.0000.0.1; while(1) { GO=1; /* start AD */ while(GO); /* wait for done */ time = ADRESH; /* only using 8 MSB of ADRES (=ADRESH) */ /* must negate 'time' to increase blink speed */ /* when turning RP1 clockwise */ time = ~time; DS1_led = !DS1_led; /* toggle DS1 LED-light on/off */ PORTC.0 = DS1_led; delay(10); /* add a minimum 10 ms delay */ delay(time); } } ¶

adblink.c delays.c ( delays.h )¶

Prova interrupt! Kodexempel för 16F690:¶

¶

/* kilroy.c PICkit2 Test interrupt SW1 and DS1 */ /* "Low pin count demo board" J1 ___________ ___________ 1 RA5 | \/ | 2 RA4 +5V---|Vdd 16F690 Vss|---GND 3 RA3 -- ---|RA5 RA0/AN0/(PGD)|-<-RP1 4 RC5 | ---|RA4 RA1/(PGC)|--- 5 RC4 | insert SW1---|RA3/!MCLR/(Vpp) RA2/INT|--- 6 RC3 Resistor 1k ---|RC5/CCP RC0|->-DS1 7 RA0 | ---|RC4 RC1|->-DS2 8 RA1 | DS4-<-|RC3 RC2|->-DS3 9 RA2 -- |RC6 RB4| 10 RC0 |RC7 RB5/Rx| 11 RC1 |RB7/Tx RB6| 12 RC2 |________________________| 13 +5V 14 GND */ /* Insert resistor 1k (value not critical) between J1:3 and J1:9 */ /* for SW1 to be able to generate external interrupt */ /* B Knudsen Cc5x C-compiler - not ANSI-C */ #include "16F690.h" #include "int16Cxx.h" #pragma config |= 0x00D4 #pragma origin 4 interrupt int_server( void ) /* the place for the interrupt routine */ { int_save_registers if( INTF == 1 ) /* test if it is the INT-interrupt? */ { /* this time it's obvius that it is! */ PORTC.0 = 1; /* Lightdiode on to show "Killroy was here" */ INTF = 0; /* Reset INT-flag before leaving */ } int_restore_registers } #include "delays.c" /* include no code before the interrupt routine */ void delay( char); void main( void) { TRISC.0 = 0; /* RC0 is output */ PORTC.0 = 0; /* the LED is off */ delay(10); /* 10 ms for demo board initialization */ /* or uncheck !MCLR after Vdd is checked in PICkit2 */ TRISA.2 = 1; /* INT is input */ ANSEL = 0; /* PORTA dig i/o */ INTEDG = 0; /* interrupt on negative going edge */ /* eg when you press SW1 (it's connected that way) */ INTE = 1; /* local enable */ GIE = 1; /* global enable */ while(1) { nop(); /* the LED is still off */ } } ¶

kilroy.c copy the header file int16Cxx.h from the compiler folder to your Work folder.¶