50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
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#include <detpic32.h>
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void delay(unsigned int ms) {
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resetCoreTimer();
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while (readCoreTimer() < ms * 20000);
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}
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void putc(char byte) {
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// wait while UTXBF == 1
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while (U2STAbits.UTXBF == 1);
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// Copy byte to the UxTXREG register
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U2TXREG = byte;
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}
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char getc() {
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// If OERR == 1 then reset OERR
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if (U2STAbits.OERR == 1)
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U2STAbits.OERR = 0;
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// Wait while URXDA == 0
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while (U2STAbits.URXDA == 0);
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// Return U2RXREG
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return U2RXREG;
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}
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int main() {
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// Configure UART2:
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// 1 - Configure BaudRate Generator
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U2BRG = ((PBCLK + 8 * 115200) / (16 * 115200)) - 1;
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U2MODEbits.BRGH = 0; // 16x baud clock enabled (1 -> 4x baud clock)
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// 2 - Configure number of data bits, parity and number of stop bits
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// (see U2MODE register)
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U2MODEbits.PDSEL = 00; // 8 data bits, without parity
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U2MODEbits.STSEL = 0; // 1 stop bit
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// 3 - Enable the transmitter and receiver modules (see register U2STA)
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U2STAbits.URXEN = 1; // Enable Receiver
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U2STAbits.UTXEN = 1; // Enable Transmitter
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// 4 - Enable UART2 (see register U2MODE)
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U2MODEbits.ON = 1;
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while (1) {
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putc(getc());
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}
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return 0;
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}
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