проверка работоспособности комбинационного узла

qsgtx · 11.01.2012, 19:40

проверка работоспобности комбинационного узла можно ли упросить и переделать схему есть ли варианты??? мультиплексоры используются как память в него вбиваем бинарный файл с выходными сигналами для проверки!!! есть ли альтернатива если не использовать не 4 регистора сдива а всего 2 и мультиплексора два!! как бы не очень удобно получилось!!!

qsgtx · 11.01.2012, 19:42

,лисстинг программного ккода

// LCD module connections
sbit LCD_RS at PORTC2_bit;
sbit LCD_EN at PORTC3_bit;
sbit LCD_D4 at PORTC4_bit;
sbit LCD_D5 at PORTC5_bit;
sbit LCD_D6 at PORTC6_bit;
sbit LCD_D7 at PORTC7_bit;

sbit LCD_RS_Direction at DDC2_bit;
sbit LCD_EN_Direction at DDC3_bit;
sbit LCD_D4_Direction at DDC4_bit;
sbit LCD_D5_Direction at DDC5_bit;
sbit LCD_D6_Direction at DDC6_bit;
sbit LCD_D7_Direction at DDC7_bit;
// End LCD module connections

char i, j, k, m; // параметр цикла
//синхроимпульсы записи в регистры и выходной синхроимпульс
char clk[5][3] = {0x00,0x01,0x00, //запись в 1 регистр
0x00,0x02,0x00, //запись во 2 регистр
0x00,0x04,0x00, //запись в 3 регистр
0x00,0x08,0x00, //запись в 4 регистр
0x00,0x10,0x00};//пятый импульс передаем наружу (?!)
char random[4];//4 байта 32-р случайного числа
char rnd[4][3];
//Таблица истинности для 4 проверяемых устройств
char out[2][256] = {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09 ,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,//=== 0
0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19, 0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29, 0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,
0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39, 0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,
0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49, 0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,
0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59, 0x5A,0x5B,0x5C,0x5D,0x5E,0x5F,
0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69, 0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79, 0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89, 0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99, 0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,
0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9, 0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9, 0xBA,0xBB,0xBC,0xBD,0xBE,0xBF,
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9, 0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9, 0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9, 0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9, 0xFA,0xFB,0xFC,0xFD,0xFE,0xFF;//=== 1
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09, 0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19, 0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29, 0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,
0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39, 0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,
0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49, 0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,
0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59, 0x5A,0x5B,0x5C,0x5D,0x5E,0x5F,
0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69, 0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79, 0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89, 0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99, 0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,
0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9, 0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9, 0xBA,0xBB,0xBC,0xBD,0xBE,0xBF,
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9, 0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9, 0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9, 0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9, 0xFA,0xFB,0xFC,0xFD,0xFE,0xFF};//=== 2
char adres, res; //выставляемый адрес
char result[2], flag[2]; //принимаемая порция данных от 4 устройств, флаги ошибок
char buf[2]; // для преобразования в символы

void main(){

DDRA = 0x00; //на ввод значения проверяемых устройств
DDRD = 0xFF; //вывод адреса (входные величины) для проверяемого устройства
DDRE = 0xFF; //управляющие синхроимпульсы

Lcd_Init(); // Initialize LCD
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);// Cursor off
Lcd_Out(1,1,"4*8 BIT LOGIC TESTER");
Lcd_Out(2,2,"Initialize data...");

//индикация начала работы - уходящие единицы
for (k=0; k‹=3; k++) random[k] = 0xFF;
for (k=0; k‹=8; k++) {
j=0;
while (j ‹= 3) {
PORTD = random[j];
random[j] = (random[j] ›› 1);
i = 0;
while (i ‹= 2) {
PORTE = clk[j][i];
i++;
}
j++;
}
Delay_ms(20);
}
Delay_ms(100);
Lcd_Out(2,2," ");
Lcd_Out(4,1,"====(C) JA, 2011====");
Delay_ms(100);
Lcd_Cmd(_LCD_CLEAR); // Clear display

Lcd_Out(1,1,"Err1");
Lcd_Out(2,1,"Err2");
Lcd_Out(3,1,"Err3");
Lcd_Out(4,1,"Err4");
Lcd_Out(1,10,"Data:");
Lcd_Out(2,10,"Data:");
Lcd_Out(3,10,"Data:");
Lcd_Out(4,10,"Data:");

for (i=0; i‹=3; i++) flag[i] = 0; //обнуление флагов ошибок

for (k=0; k‹=255; k++) {
PORTD = k; //выдача адреса на порт D и раздача на 4 устройства
for (j=0; j‹=3; j++) {
for (i=0; i‹=2; i++) PORTE = clk[j][i];
}
for (m=0; m‹=3; m++) { //считать с 4 устройств по очереди
switch (m) {
case 0: PORTE.B7 = 0; PORTE.B6 = 0; break;
case 1: PORTE.B7 = 0; PORTE.B6 = 1; break;
}
res = PINA; // считать данные
if (res != out[m][k]) flag[m]++;
ByteToStr(flag[m], buf);
Lcd_Out(m+1, 6, buf);
ByteToStr(res, buf);
Lcd_Out(m+1, 16, buf);
}

}

}