20 lines
428 B
C
20 lines
428 B
C
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#include <detpic32.h>
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int reverse_byte(int byte) {
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byte = (byte & 0xF0) >> 4 | (byte & 0x0F) << 4;
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byte = (byte & 0xCC) >> 2 | (byte & 0x33) << 2;
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byte = (byte & 0xAA) >> 1 | (byte & 0x55) << 1;
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return byte;
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}
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int main() {
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TRISB |= 0x000F;
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TRISE &= 0xFF00;
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while (1) {
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int sw = PORTB & 0x000F;
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int reverse = reverse_byte(sw);
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LATE = (LATE & 0xFF00) | sw | reverse;
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}
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}
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