51 lines
930 B
C
Executable File
51 lines
930 B
C
Executable File
#include "ir.h"
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#include "Clock.h"
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void ir_init(void) {
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P5->SEL0 &= ~0x08;
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P5->SEL1 &= ~0x08;
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P5->DIR |= 0x08;
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P5->OUT &= ~0x08;
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P9->SEL0 &= ~0x04;
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P9->SEL1 &= ~0x04;
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P9->DIR |= 0x04;
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P9->OUT &= ~0x04;
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P7->SEL0 &= ~0xff;
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P7->SEL1 &= ~0xff;
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P7->DIR &= ~0xff;
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}
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void ir_read_ready() {
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P7->DIR = 0xff;
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P7->OUT &= ~0xff; /* initially offed */
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P5->OUT |= 0x08;
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P9->OUT |= 0x04;
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P7->OUT |= 0xff; /* init charge the caps */
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Clock_Delay1us(10);
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P7->DIR = 0x00; /* set input */
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}
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void ir_read_value(uint8_t *value) {
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int i;
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*value = P7->IN;
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}
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void ir_read_off() {
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P5->OUT &= ~0x08;
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P9->OUT &= ~0x04;
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}
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void test_ir(void) {
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uint8_t ir_value;
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while (1) {
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ir_ready_ready();
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Clock_Delay1us(1000); // 1ms
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ir_read_value(&ir_value);
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print_binary(ir_value);
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printf("\n");
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ir_read_off();
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}
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}
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