40 lines
886 B
C
40 lines
886 B
C
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#include <detpic32.h>
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#define UP 1
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#define DOWN 0
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void wait(int);
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int main(void) {
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int state = 0;
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int cnt = 0;
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char c;
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do {
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putChar('\r'); // Carriage return character
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printInt(cnt, 10 | 3 << 16); // 0x0003000A: decimal w/ 3 digits
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putChar('\t'); // Tab character
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printInt(cnt, 2 | 8 << 16); // 0x00080002: binary w/ 8 bits
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wait(5); // wait 0.5s
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c = inkey();
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if (c == '+')
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state = UP;
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if (c == '-')
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state = DOWN;
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if (c == 'S')
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while (inkey() != 'R');
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if (state == UP)
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cnt = (cnt + 1) & 0xFF; // Up counter MOD 256
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else
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cnt = (cnt - 1) & 0xFF; // Down counter MOD 256
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} while (c != 'q');
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return 0;
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}
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void wait(int ts) {
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int i;
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for (i = 0; i < 515000 * ts; i++); // wait approximately ts/10 seconds
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}
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