Browse Source

mega168 version

master
Olaf Rempel 9 years ago
parent
commit
8250d528a5
8 changed files with 97 additions and 48 deletions
  1. +93
    -45
      5x7test.c
  2. +1
    -0
      5x8_vertikal_LSB_1.h
  3. +3
    -3
      Makefile
  4. BIN
      eagle/5x7led-bot.png
  5. BIN
      eagle/5x7led-sch.png
  6. BIN
      eagle/5x7led-top.png
  7. BIN
      eagle/5x7led.brd
  8. BIN
      eagle/5x7led.sch

+ 93
- 45
5x7test.c View File

@@ -1,5 +1,5 @@
/***************************************************************************
* Copyright (C) 02/2010 by Olaf Rempel *
* Copyright (C) 03/2010 by Olaf Rempel *
* razzor@kopf-tisch.de *
* *
* This program is free software; you can redistribute it and/or modify *
@@ -20,71 +20,109 @@
#include <avr/interrupt.h>
#include <avr/pgmspace.h>

#define F_CPU 3686400
#define F_CPU 8000000
#include <util/delay.h>

#include "6x8_vertikal_LSB_1.h"

/*
* at90s2313 pinout:
* PB0-4 => LED C1-5
* PB5-7 => free/ISP
* PD0-6 => LED R1-7 (with 100R resistors)
*/
#define nop() asm volatile ("nop")

/* for TC12-11 */
//#define COL_SEL(x) PORTB = ~(x)
//#define COL_DATA(x) PORTD = (x)

/* for TA12-11 */
#define COL_SEL(x) PORTB = (x)
#define COL_DATA(x) PORTD = ~(x)
#define nCLEAR PB0
#define RCLK PB1
#define nOE PB2
#define MOSI PB3
#define MISO PB3
#define SCK PB5

#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))

static const char text[] = " <<<AT90S2313:Scrolltext-Demo>>>";
static const char text[] = " <<<atmega168:Scrolltext-Demo>>> ";

/* scrollbuffer */
static volatile uint8_t data[5 + 1 + 5];
static volatile uint8_t data[32];
static volatile uint8_t offset;

void setRow(uint8_t row)
{
uint8_t i;
volatile uint8_t *p = data + offset + 19;

row = (1 << row);

/* bit-banging spi, 20 cols */
for (i = 0; i < 20; i++) {
PORTB &= ~(1<<MISO);
if (*p-- & row)
PORTB |= (1<<MOSI);

PORTB |= (1<<SCK);
PORTB &= ~(1<<SCK);

/* insert extra cols (unused hc595 outputs) */
if (i == 5 || i == 12 || i == 19) {
PORTB |= (1<<SCK);
PORTB &= ~(1<<SCK);
}
}

/* disable outputs, update register */
PORTB |= ((1<<nOE) | (1<<RCLK));

/* select row */
PORTC |= 0x07;
PORTC &= ~(row & 0x07);
PORTD |= 0x78;
PORTD &= ~(row & 0x78);

/* enable outputs again */
PORTB &= ~((1<<nOE) | (1<<RCLK));
}

ISR(SIG_OVERFLOW0)
{
static uint8_t col;
/* ~2,8ms */
TCNT0 = 0xFF - 40;
static uint8_t row;

COL_DATA(0x00);
COL_SEL(1 << col);
COL_DATA(data[offset + col]);
/* 2ms */
TCNT0 = 0xFF - 64;

col = (col == 5) ? 0 : col + 1;
setRow(row++);
if (row == 7)
row = 0;
}

int main(void)
{
uint8_t mode = 0;
uint8_t pos = 0;
uint8_t delay = 0;
/* row 1-3 */
DDRC = 0x07;
PORTC = 0x07;

/* row 4-7 */
DDRD = 0x78;
PORTD = 0x78;

DDRB = 0x1F;
DDRD = 0x7F;
/* ctrl signals */
DDRB = (1<<nCLEAR) | (1<<RCLK) | (1<<nOE) | (1<<MOSI) | (1<<SCK);
PORTB = (1<<nCLEAR) | (1<<nOE);

/* F_CPU/256, Overflow Interrupt */
TCCR0B = (1<<CS02);
TIMSK0 = (1<<TOIE0);

/* Timer0: FCPU/256 */
TCCR0 = (1<<CS02);
TIMSK = (1<<TOIE0);
sei();

uint8_t mode = 0;
uint8_t pos = 0;
uint8_t delay = 0;

while (1) {
switch (mode)
{
case 0:
if (offset == 6) {
offset = 0;
if (text[pos +1] == '\0') {
if (text[pos +3] == '\0') {
pos = 0;
mode++;
break;

} else {
pos++;
@@ -92,27 +130,37 @@ int main(void)
}

if (offset == 0) {
memcpy_P((void *)&data[0], font[(uint8_t)text[pos]], 5);
memcpy_P((void *)&data[1 + 5], font[(uint8_t)text[pos +1]], 5);
int i;
for (i = 0; i < 5; i++) {
memcpy_P((void *)&data[i * 6], font[(uint8_t)text[pos + i]], 5);
}
}

offset++;
delay = 12;
delay = 6;
break;

case 1:
memcpy_P((void *)&data[0], &font[pos], 5);
if (offset == 6) {
offset = 0;
if (pos == (ARRAY_SIZE(font) -3)) {
pos = 0;
mode++;

if (pos == (ARRAY_SIZE(font) -1)) {
pos = 0;
mode++;
break;
} else {
pos++;
}
}

} else {
pos++;
if (offset == 0) {
int i;
for (i = 0; i < 5; i++) {
memcpy_P((void *)&data[i * 6], font[(uint8_t)pos + i], 5);
}
}

delay = 20;
offset++;
delay = 6;
break;

default:

+ 1
- 0
5x8_vertikal_LSB_1.h View File

@@ -1,3 +1,4 @@
// font from http://www.mikrocontroller.net/topic/54860 */
const prog_char font[][5]={
{0x00,0x00,0x00,0x00,0x00}, // 0x00
{0x1E,0x35,0x31,0x35,0x1E}, // 0x01

+ 3
- 3
Makefile View File

@@ -1,6 +1,6 @@
PRG = 5x7test
OBJ = 5x7test.o
MCU_TARGET = at90s2313
MCU_TARGET = atmega168
OPTIMIZE = -Os

DEFS =
@@ -41,5 +41,5 @@ bin: $(PRG).bin
$(OBJCOPY) -j .text -j .data -O binary $< $@

install: all
avrdude -p 2313 -c avr910 -b 115200 -P /dev/ttyUSB0 -e -V -U flash:w:$(PRG).hex
# avrdude -c dragon_isp -P usb -p 2313 -B 2 -e -V -U flash:w:$(PRG).hex
# avrdude -p 2313 -c avr910 -b 115200 -P /dev/ttyUSB0 -e -V -U flash:w:$(PRG).hex
avrdude -c dragon_isp -P usb -p m168 -e -V -U flash:w:$(PRG).hex

BIN
eagle/5x7led-bot.png View File

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Width: 1038  |  Height: 465  |  Size: 27KB

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eagle/5x7led-sch.png View File

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Width: 3120  |  Height: 1852  |  Size: 117KB

BIN
eagle/5x7led-top.png View File

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Width: 1038  |  Height: 465  |  Size: 24KB

BIN
eagle/5x7led.brd View File


BIN
eagle/5x7led.sch View File


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