networking

parent ada9c6ca
Pipeline #111191 passed with stage
in 39 seconds
#include <avr/io.h>
#include <util/delay.h>
#include <avr/pgmspace.h>
#include <string.h>
#define output(directions,pin) (directions |= pin) // set port direction for output
#define input(directions,pin) (directions &= (~pin)) // set port direction for input
#define set(port,pin) (port |= pin) // set port pin
#define clear(port,pin) (port &= (~pin)) // clear port pin
#define pin_test(pins,pin) (pins & pin) // test for port pin
#define bit_test(byte,bit) (byte & (1 << bit)) // test for bit set
#define bit_delay_time 100 // bit delay for 9600 with overhead
#define bit_delay() _delay_us(bit_delay_time) // RS232 bit delay
#define half_bit_delay() _delay_us(bit_delay_time/2) // RS232 half bit delay
#define led_delay() _delay_ms(100) // LED flash delay
#define led_blink() _delay_ms(5000) // LED flash delay
#define led_port PORTB
#define led_direction DDRB
#define led_pin (1 << PB0)
#define serial_port PORTB
#define serial_direction DDRB
#define serial_pins PINB
#define serial_pin_in (1 << PB3)
#define serial_pin_out (1 << PB4)
#define node_id '0'
#define node_id2 '3'
#define node_id3 '4'
#define node_id4 '5'
void get_char(volatile unsigned char *pins, unsigned char pin, char *rxbyte) {
//
// read character into rxbyte on pins pin
// assumes line driver (inverts bits)
//
*rxbyte = 0;
while (pin_test(*pins,pin))
//
// wait for start bit
//
;
//
// delay to middle of first data bit
//
half_bit_delay();
bit_delay();
//
// unrolled loop to read data bits
//
if pin_test(*pins,pin)
*rxbyte |= (1 << 0);
else
*rxbyte |= (0 << 0);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 1);
else
*rxbyte |= (0 << 1);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 2);
else
*rxbyte |= (0 << 2);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 3);
else
*rxbyte |= (0 << 3);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 4);
else
*rxbyte |= (0 << 4);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 5);
else
*rxbyte |= (0 << 5);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 6);
else
*rxbyte |= (0 << 6);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 7);
else
*rxbyte |= (0 << 7);
//
// wait for stop bit
//
bit_delay();
half_bit_delay();
}
void put_char(volatile unsigned char *port, unsigned char pin, char txchar) {
//
// send character in txchar on port pin
// assumes line driver (inverts bits)
//
// start bit
//
clear(*port,pin);
bit_delay();
//
// unrolled loop to write data bits
//
if bit_test(txchar,0)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,1)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,2)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,3)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,4)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,5)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,6)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,7)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
//
// stop bit
//
set(*port,pin);
bit_delay();
//
// char delay
//
bit_delay();
}
void put_string(volatile unsigned char *port, unsigned char pin, PGM_P str) {
//
// send character in txchar on port pin
// assumes line driver (inverts bits)
//
static char chr;
static int index;
index = 0;
do {
chr = pgm_read_byte(&(str[index]));
put_char(&serial_port, serial_pin_out, chr);
++index;
} while (chr != 0);
}
void flash() {
//
// LED flash delay
//
clear(led_port, led_pin);
led_delay();
set(led_port, led_pin);
}
void high() {
//
// LED high
//
clear(led_port, led_pin);
}
void low() {
//
// LED low
//
set(led_port, led_pin);
}
void Blink() {
//
// LED flash delay
//
clear(led_port, led_pin);
led_blink();
set(led_port, led_pin);
led_blink();
clear(led_port, led_pin);
led_blink();
set(led_port, led_pin);
led_blink();
}
int main(void) {
//
// main
//
static char chr;
//
// set clock divider to /1
//
CLKPR = (1 << CLKPCE);
CLKPR = (0 << CLKPS3) | (0 << CLKPS2) | (0 << CLKPS1) | (0 << CLKPS0);
//
// initialize output pins
//
set(serial_port, serial_pin_out);
input(serial_direction, serial_pin_out);
set(led_port, led_pin);
output(led_direction, led_pin);
//
// main loop
//
while (1) {
get_char(&serial_pins, serial_pin_in, &chr);
flash();
if (chr == node_id) {
output(serial_direction, serial_pin_out);
static const char message[] PROGMEM = "node ";
put_string(&serial_port, serial_pin_out, (PGM_P) message);
put_char(&serial_port, serial_pin_out, chr);
put_char(&serial_port, serial_pin_out, 10); // new line
led_delay();
flash();
input(serial_direction, serial_pin_out);
}
if (chr == node_id2) {
output(serial_direction, serial_pin_out);
static const char message[] PROGMEM = "leds high";
put_string(&serial_port, serial_pin_out, (PGM_P) message);
//put_char(&serial_port, serial_pin_out, chr);
put_char(&serial_port, serial_pin_out, 10); // new line
led_delay();
high();
input(serial_direction, serial_pin_out);
}
if (chr == node_id3) {
output(serial_direction, serial_pin_out);
static const char message[] PROGMEM = "leds low";
put_string(&serial_port, serial_pin_out, (PGM_P) message);
//put_char(&serial_port, serial_pin_out, chr);
put_char(&serial_port, serial_pin_out, 10); // new line
led_delay();
low();
input(serial_direction, serial_pin_out);
}
if (chr == node_id4) {
output(serial_direction, serial_pin_out);
static const char message[] PROGMEM = "led blink node 0";
put_string(&serial_port, serial_pin_out, (PGM_P) message);
//put_char(&serial_port, serial_pin_out, chr);
put_char(&serial_port, serial_pin_out, 10); // new line
led_delay();
Blink();
input(serial_direction, serial_pin_out);
}
}
}
#include <avr/io.h>
#include <util/delay.h>
#include <avr/pgmspace.h>
#include <string.h>
#define output(directions,pin) (directions |= pin) // set port direction for output
#define input(directions,pin) (directions &= (~pin)) // set port direction for input
#define set(port,pin) (port |= pin) // set port pin
#define clear(port,pin) (port &= (~pin)) // clear port pin
#define pin_test(pins,pin) (pins & pin) // test for port pin
#define bit_test(byte,bit) (byte & (1 << bit)) // test for bit set
#define bit_delay_time 100 // bit delay for 9600 with overhead
#define bit_delay() _delay_us(bit_delay_time) // RS232 bit delay
#define half_bit_delay() _delay_us(bit_delay_time/2) // RS232 half bit delay
#define led_delay() _delay_ms(100) // LED flash delay
#define led_blink() _delay_ms(2500) // LED flash delay
#define led_port PORTB
#define led_direction DDRB
#define led_pin (1 << PB0)
#define serial_port PORTB
#define serial_direction DDRB
#define serial_pins PINB
#define serial_pin_in (1 << PB3)
#define serial_pin_out (1 << PB4)
#define node_id '1'
#define node_id2 '3'
#define node_id3 '4'
#define node_id4 '6'
void get_char(volatile unsigned char *pins, unsigned char pin, char *rxbyte) {
//
// read character into rxbyte on pins pin
// assumes line driver (inverts bits)
//
*rxbyte = 0;
while (pin_test(*pins,pin))
//
// wait for start bit
//
;
//
// delay to middle of first data bit
//
half_bit_delay();
bit_delay();
//
// unrolled loop to read data bits
//
if pin_test(*pins,pin)
*rxbyte |= (1 << 0);
else
*rxbyte |= (0 << 0);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 1);
else
*rxbyte |= (0 << 1);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 2);
else
*rxbyte |= (0 << 2);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 3);
else
*rxbyte |= (0 << 3);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 4);
else
*rxbyte |= (0 << 4);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 5);
else
*rxbyte |= (0 << 5);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 6);
else
*rxbyte |= (0 << 6);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 7);
else
*rxbyte |= (0 << 7);
//
// wait for stop bit
//
bit_delay();
half_bit_delay();
}
void put_char(volatile unsigned char *port, unsigned char pin, char txchar) {
//
// send character in txchar on port pin
// assumes line driver (inverts bits)
//
// start bit
//
clear(*port,pin);
bit_delay();
//
// unrolled loop to write data bits
//
if bit_test(txchar,0)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,1)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,2)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,3)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,4)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,5)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,6)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,7)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
//
// stop bit
//
set(*port,pin);
bit_delay();
//
// char delay
//
bit_delay();
}
void put_string(volatile unsigned char *port, unsigned char pin, PGM_P str) {
//
// send character in txchar on port pin
// assumes line driver (inverts bits)
//
static char chr;
static int index;
index = 0;
do {
chr = pgm_read_byte(&(str[index]));
put_char(&serial_port, serial_pin_out, chr);
++index;
} while (chr != 0);
}
void flash() {
//
// LED flash delay
//
clear(led_port, led_pin);
led_delay();
set(led_port, led_pin);
}
void high() {
//
// LED flash delay
//
clear(led_port, led_pin);
}
void low() {
//
// LED flash delay
//
set(led_port, led_pin);
}
void Blink() {
//
// LED flash delay
//
clear(led_port, led_pin);
led_blink();
set(led_port, led_pin);
led_blink();
clear(led_port, led_pin);
led_blink();
set(led_port, led_pin);
led_blink();
}
int main(void) {
//
// main
//
static char chr;
//
// set clock divider to /1
//
CLKPR = (1 << CLKPCE);
CLKPR = (0 << CLKPS3) | (0 << CLKPS2) | (0 << CLKPS1) | (0 << CLKPS0);
//
// initialize output pins
//
set(serial_port, serial_pin_out);
input(serial_direction, serial_pin_out);
set(led_port, led_pin);
output(led_direction, led_pin);
//
// main loop
//
while (1) {
get_char(&serial_pins, serial_pin_in, &chr);
flash();
if (chr == node_id) {
output(serial_direction, serial_pin_out);
static const char message[] PROGMEM = "node ";
put_string(&serial_port, serial_pin_out, (PGM_P) message);
put_char(&serial_port, serial_pin_out, chr);
put_char(&serial_port, serial_pin_out, 10); // new line
led_delay();
flash();
input(serial_direction, serial_pin_out);
}
if (chr == node_id2) {
output(serial_direction, serial_pin_out);
static const char message[] PROGMEM = "leds high";
put_string(&serial_port, serial_pin_out, (PGM_P) message);
//put_char(&serial_port, serial_pin_out, chr);
put_char(&serial_port, serial_pin_out, 10); // new line
led_delay();
high();
input(serial_direction, serial_pin_out);
}
if (chr == node_id3) {
output(serial_direction, serial_pin_out);
static const char message[] PROGMEM = "leds low";
put_string(&serial_port, serial_pin_out, (PGM_P) message);
//put_char(&serial_port, serial_pin_out, chr);
put_char(&serial_port, serial_pin_out, 10); // new line
led_delay();
low();
input(serial_direction, serial_pin_out);
}
if (chr == node_id4) {
output(serial_direction, serial_pin_out);
static const char message[] PROGMEM = "led blink node 1";
put_string(&serial_port, serial_pin_out, (PGM_P) message);
//put_char(&serial_port, serial_pin_out, chr);
put_char(&serial_port, serial_pin_out, 10); // new line
led_delay();
Blink();
input(serial_direction, serial_pin_out);
}
}
}
#include <avr/io.h>
#include <util/delay.h>
#include <avr/pgmspace.h>
#include <string.h>
#define output(directions,pin) (directions |= pin) // set port direction for output
#define input(directions,pin) (directions &= (~pin)) // set port direction for input
#define set(port,pin) (port |= pin) // set port pin
#define clear(port,pin) (port &= (~pin)) // clear port pin
#define pin_test(pins,pin) (pins & pin) // test for port pin
#define bit_test(byte,bit) (byte & (1 << bit)) // test for bit set
#define bit_delay_time 100 // bit delay for 9600 with overhead
#define bit_delay() _delay_us(bit_delay_time) // RS232 bit delay
#define half_bit_delay() _delay_us(bit_delay_time/2) // RS232 half bit delay
#define led_delay() _delay_ms(100) // LED flash delay
#define led_blink() _delay_ms(1200) // LED flash delay
#define led_port PORTB
#define led_direction DDRB
#define led_pin (1 << PB0)
#define serial_port PORTB
#define serial_direction DDRB
#define serial_pins PINB
#define serial_pin_in (1 << PB3)
#define serial_pin_out (1 << PB4)
#define node_id '2'
#define node_id2 '3'
#define node_id3 '4'
#define node_id4 '7'
void get_char(volatile unsigned char *pins, unsigned char pin, char *rxbyte) {
//
// read character into rxbyte on pins pin
// assumes line driver (inverts bits)
//
*rxbyte = 0;
while (pin_test(*pins,pin))
//
// wait for start bit
//
;
//
// delay to middle of first data bit
//
half_bit_delay();
bit_delay();
//
// unrolled loop to read data bits
//
if pin_test(*pins,pin)
*rxbyte |= (1 << 0);
else
*rxbyte |= (0 << 0);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 1);
else
*rxbyte |= (0 << 1);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 2);
else
*rxbyte |= (0 << 2);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 3);
else
*rxbyte |= (0 << 3);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 4);
else
*rxbyte |= (0 << 4);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 5);
else
*rxbyte |= (0 << 5);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 6);
else
*rxbyte |= (0 << 6);
bit_delay();
if pin_test(*pins,pin)
*rxbyte |= (1 << 7);
else
*rxbyte |= (0 << 7);
//
// wait for stop bit
//
bit_delay();
half_bit_delay();
}
void put_char(volatile unsigned char *port, unsigned char pin, char txchar) {
//
// send character in txchar on port pin
// assumes line driver (inverts bits)
//
// start bit
//
clear(*port,pin);
bit_delay();
//
// unrolled loop to write data bits
//
if bit_test(txchar,0)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,1)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,2)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,3)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,4)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,5)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,6)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
if bit_test(txchar,7)
set(*port,pin);
else
clear(*port,pin);
bit_delay();
//
// stop bit
//
set(*port,pin);
bit_delay();
//
// char delay
//
bit_delay();
}
void put_string(volatile unsigned char *port, unsigned char pin, PGM_P str) {
//
// send character in txchar on port pin
// assumes line driver (inverts bits)
//
static char chr;
static int index;
index = 0;
do {
chr = pgm_read_byte(&(str[index]));
put_char(&serial_port, serial_pin_out, chr);
++index;
} while (chr != 0);
}
void flash() {
//
// LED flash delay
//
clear(led_port, led_pin);
led_delay();
set(led_port, led_pin);
}
void high() {