2ano/2semestre/ac2/aula10/part1-ex1.c

@@ -4,7 +4,7 @@ int main() {
     // Configure UART2:
     // 1 - Configure BaudRate Generator
     U2BRG = ((PBCLK + 8 * 115200) / (16 * 115200)) - 1;
-    U2MODEbits.BRGH = 0;    // 16x baud clock enabled (1 -> 4x baud clock);
+    U2MODEbits.BRGH = 0    // 16x baud clock enabled (1 -> 4x baud clock);
 
     // 2 - Configure number of data bits, parity and number of stop bits
     // (see U2MODE register)

2ano/2semestre/ac2/aula10/part1-ex4.c

@@ -21,7 +21,7 @@ int main() {
     // Configure UART2:
     // 1 - Configure BaudRate Generator
     U2BRG = ((PBCLK + 8 * 115200) / (16 * 115200)) - 1;
-    U2MODEbits.BRGH = 0;    // 16x baud clock enabled (1 -> 4x baud clock)
+    U2MODEbits.BRGH = 1;    // 16x baud clock enabled (1 -> 4x baud clock)
 
     // 2 - Configure number of data bits, parity and number of stop bits
     // (see U2MODE register)

2ano/2semestre/ac2/aula10/part1-ex7.c

@@ -12,9 +12,12 @@ void putc(char byte) {
     U2TXREG = byte;
 }
 
-void putstr(char *str) {
+void sendCounter(int counter) {
-    // use putc() function to send each charater ('\0' should not be sent)
+    while (counter != 0) {
-    while (*str != '\0') putc(*str++);
+        char bit = counter & 0x1;
+        putc(bit);
+        counter >>= 1;
+    }
 }
 
 int main() {
@@ -35,25 +38,14 @@ int main() {
     // 4 - Enable UART2 (see register U2MODE)
     U2MODEbits.ON = 1;
 
-    int i, count = 0;
+    int counter = 0;
 
     while (1) {
-        // Incrementa o contador módulo 10
+        sendCounter(counter);
-        count = (count + 1) % 10;
+        delay(5000);
-
+        counter = (counter + 1) % 10;
-        // Converte o valor do contador para binário
-        char binary[5];
-        for (i = 0; i < 4; i++) {
-            binary[3 - i] = (count & (1 << i)) ? '1' : '0';
     }
-        binary[4] = '\0';
 
-        // Count modulo 10 em binário:
-        putstr(binary);
-        putc('\n');
-
-        delay(200);  // 5hz = 200ms
-    }
     return 0;
 }
 

2ano/2semestre/ac2/aula11/part1.c

@@ -1,50 +0,0 @@
-#include <detpic32.h>
-
-int main() {
-    TRISCbits.TRISC14 = 0;
-
-    U2BRG = ((PBCLK + 8 * 115200) / (16 * 115200)) - 1;
-    U2MODEbits.BRGH = 0;    // 16x baud clock enabled (1 -> 4x baud clock)
-
-    U2MODEbits.PDSEL = 00;  // 8 data bits, without parity
-    U2MODEbits.STSEL = 0;   // 1 stop bit
-
-    U2STAbits.URXEN = 1;    // Enable Receiver
-    U2STAbits.UTXEN = 1;    // Enable Transmitter
-
-    IEC1bits.U2RXIE = 1;
-    IEC1bits.U2TXIE = 0;
-    IPC8bits.U2IP = 2;
-    IFS1bits.U2RXIF = 0;
-
-    U2MODEbits.ON = 1;
-
-    EnableInterrupts();
-
-    while (1);
-    return 0;
-}
-
-void putc(char byte) {
-    // wait while UTXBF == 1
-    while (U2STAbits.UTXBF == 1);
-    // Copy byte to the UxTXREG register
-    U2TXREG = byte;
-}
-
-void _int_(32) isr_uart2rx() {
-    // If OERR == 1 then reset OERR
-    if (U2STAbits.OERR == 1)
-        U2STAbits.OERR = 0;
-    // Wait while URXDA == 0
-    while (U2STAbits.URXDA == 0);
-    // Save U2RXREG value
-    char c = U2RXREG;
-
-    if (c == 'T') LATCbits.LATC14 = 1;
-    else if (c == 't') LATCbits.LATC14 = 0;
-
-    putc(c);
-
-    IFS1bits.U2RXIF = 0;
-}

2ano/2semestre/ac2/aula11/part2.c

@@ -1,57 +0,0 @@
-#include "p32mx795f512h.h"
-#include <detpic32.h>
-
-volatile struct {
-    char mem[100];
-    int nchar;
-    int posrd;
-} txbuf;
-
-void putStrInt(char *s) {
-    while (txbuf.nchar > 0);
-
-    while (*s != '\0')
-        txbuf.nchar++[txbuf.mem] = *s++;
-
-    txbuf.posrd = 0;
-    IEC1bits.U2TXIE = 1;
-}
-
-int main() {
-    U2BRG = ((PBCLK + 8 * 115200) / (16 * 115200)) - 1;
-    U2MODEbits.BRGH = 0;    // 16x baud clock enabled (1 -> 4x baud clock)
-
-    U2MODEbits.PDSEL = 00;  // 8 data bits, without parity
-    U2MODEbits.STSEL = 0;   // 1 stop bit
-
-    U2STAbits.URXEN = 1;    // Enable Receiver
-    U2STAbits.UTXEN = 1;    // Enable Transmitter
-
-    IEC1bits.U2RXIE = 0;
-    IEC1bits.U2TXIE = 0;
-    IPC8bits.U2IP = 2;
-    IFS1bits.U2TXIF = 0;
-    U2STAbits.UTXISEL = 00;
-
-    U2MODEbits.ON = 1;
-
-    EnableInterrupts();
-    txbuf.nchar = 0;
-
-    while (1) {
-        putStrInt("Test string which can be as long as you like, up to a maximum of 100 characters\n");
-    }
-
-    return 0;
-}
-
-void _int_(32) isr_uart2tx() {
-    if (!IFS1bits.U2TXIF) return;
-    if (txbuf.nchar-- > 0) {
-        U2TXREG = txbuf.posrd++[txbuf.mem];
-    } else {
-        IEC1bits.U2TXIE = 0;
-    }
-
-    IFS1bits.U2TXIF = 0;
-}

2ano/2semestre/ac2/aula11/part3.c

@@ -1,155 +0,0 @@
-#include <detpic32.h>
-
-#define SAMPLES 4
-
-volatile int voltage = 0;
-volatile int voltMin = 33;
-volatile int voltMax = 0;
-
-const unsigned int dis7Scodes[] = {0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D,
-                                   0xFD, 0x07, 0x7F, 0x6F, 0x77, 0xFC,
-                                   0x39, 0x5E, 0xF9, 0xF1};
-
-typedef enum { HIGH, LOW } display;
-
-unsigned char toBdc(unsigned char value) {
-    return ((value / 10) << 4) + (value % 10);
-}
-
-void send2displays(unsigned char value) {
-    static display flag = LOW;
-    unsigned char high = dis7Scodes[value >> 4];
-    unsigned char low = dis7Scodes[value & 0x0F];
-
-    if (flag == HIGH) {
-        LATD = (LATD & 0xFF9F) | 0x0040;
-        LATB = (LATB & 0x80FF) | high << 8;
-        flag = LOW;
-    } else {
-        LATD = (LATD & 0xFF9F) | 0x0020;
-        LATB = (LATB & 0x80FF) | low << 8;
-        flag = HIGH;
-    }
-}
-
-void putc(char byte) {
-    // wait while UTXBF == 1
-    while (U2STAbits.UTXBF == 1);
-    // Copy byte to the UxTXREG register
-    U2TXREG = byte;
-}
-
-void putstr(char *str) {
-    // use putc() function to send each charater ('\0' should not be sent)
-    while (*str != '\0') putc(*str++);
-}
-
-
-int main() {
-    TRISB &= 0x80FF;
-    TRISD &= 0xFF9F;
-
-    TRISBbits.TRISB4 = 1;
-    AD1PCFGbits.PCFG4 = 0;
-    AD1CON1bits.SSRC = 7;
-    AD1CON1bits.CLRASAM = 1;
-    AD1CON3bits.SAMC = 16;
-    AD1CON2bits.SMPI = SAMPLES - 1;
-    AD1CHSbits.CH0SA = 4;
-    AD1CON1bits.ON = 1;
-
-    IPC6bits.AD1IP = 2;
-    IFS1bits.AD1IF = 0;
-    IEC1bits.AD1IE = 1;
-
-    // Configure Timer T1 with 5Hz frequency
-    T1CONbits.TCKPS = 2;
-    PR1 = 62499;
-    TMR1 = 0;
-    T1CONbits.TON = 1;
-
-    // Configure Timer T3 with 100Hz frequency
-    T3CONbits.TCKPS = 2;
-    PR3 = 49999;
-    TMR3 = 0;
-    T3CONbits.TON = 1;
-
-    IPC1bits.T1IP = 2;
-    IFS0bits.T1IF = 0;
-    IEC0bits.T1IE = 1;
-
-    IPC3bits.T3IP = 2;
-    IFS0bits.T3IF = 0;
-    IEC0bits.T3IE = 1;
-
-    U2BRG = ((PBCLK + 8 * 115200) / (16 * 115200)) - 1;
-    U2MODEbits.BRGH = 0;    // 16x baud clock enabled (1 -> 4x baud clock)
-
-    U2MODEbits.PDSEL = 00;  // 8 data bits, without parity
-    U2MODEbits.STSEL = 0;   // 1 stop bit
-
-    U2STAbits.URXEN = 1;    // Enable Receiver
-    U2STAbits.UTXEN = 1;    // Enable Transmitter
-
-    IEC1bits.U2RXIE = 1;
-    IEC1bits.U2TXIE = 0;
-    IPC8bits.U2IP = 2;
-    IFS1bits.U2RXIF = 0;
-
-    U2MODEbits.ON = 1;
-
-    EnableInterrupts();
-    while (1);
-
-    return 0;
-}
-
-void _int_(4) isr_T1(void) {
-    AD1CON1bits.ASAM = 1;
-    IFS0bits.T1IF = 0;
-}
-
-void _int_(12) isr_T3(void) {
-    send2displays(toBdc(voltage));
-    IFS0bits.T3IF = 0;
-}
-
-void _int_(27) isr_adc(void) {
-    int *p = (int *)(&ADC1BUF0);
-    int media = 0;
-    for (; p <= (int *)(&ADC1BUFF); p++)
-        media += *p;
-    media /= SAMPLES;
-    voltage = (media * 33 + 511) / 1023;
-    voltMin = voltage < voltMin ? voltage : voltMin;
-    voltMax = voltage > voltMax ? voltage : voltMax;
-    IFS1bits.AD1IF = 0;
-}
-
-void _int_(32) isr_uart2rx() {
-    // If OERR == 1 then reset OERR
-    if (U2STAbits.OERR == 1)
-        U2STAbits.OERR = 0;
-    // Save U2RXREG value
-    char c = U2RXREG;
-
-    if (c == 'M') {
-        char v = toBdc(voltMax);
-        putstr("VMax=");
-        putc((v >> 4) + 0x30);
-        putc('.');
-        putc((v & 0x0F) + 0x30);
-        putc('V');
-        putc('\n');
-    } else if (c == 'm') {
-        char v = toBdc(voltMin);
-        putstr("VMin=");
-        putc((v >> 4) + 0x30);
-        putc('.');
-        putc((v & 0x0F) + 0x30);
-        putc('V');
-        putc('\n');
-    }
-
-    IFS1bits.U2RXIF = 0;
-}