83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
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#include <dio.h>
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#include <i2c.h>
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#include <display.h>
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#include <stdio.h>
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int main(void) {
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display_t display = {
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.reg = {
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.output = { .ddr = &DDRF, .port = &PORTF, .pin = &PINF, .addr = 7 },
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.shift_clock = { .ddr = &DDRF, .port = &PORTF, .pin = &PINF, .addr = 6 },
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.latch_clock = { .ddr = &DDRF, .port = &PORTF, .pin = &PINF, .addr = 5 },
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},
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};
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display_init(&display);
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i2c_bus_t *bus = i2c_init(
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(dio_t){ .ddr = &DDRB, .port = &PORTB, .pin = &PINB, .addr = 5 },
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(dio_t){ .ddr = &DDRB, .port = &PORTB, .pin = &PINB, .addr = 6 }
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);
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i2c_error_e status = i2c_ok;
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i2c_start(bus, &status);
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i2c_write_byte(bus, 0x39 << 1, &status);
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i2c_write_byte(bus, 0x80, &status);
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i2c_write_byte(bus, 0x03, &status);
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i2c_end(bus, &status);
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if (status != i2c_ok) {
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display_clear(&display);
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display_write_message(&display, "early abort");
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}
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_delay_ms(500);
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uint8_t count = 0;
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while(1) {
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/*
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int id = 0;
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status = i2c_ok;
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i2c_start(bus, &status);
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i2c_write_byte(bus, 0x39 << 1, &status);
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i2c_write_byte(bus, 0x80, &status);
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i2c_restart(bus, &status);
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i2c_write_byte(bus, (0x39 << 1) | 1, &status);
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id = i2c_read_byte(bus, true, &status) & 0x03;
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i2c_end(bus, &status);
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*/
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int lux = 0;
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int ir = 0;
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i2c_start(bus, &status);
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i2c_write_byte(bus, 0x39 << 1, &status);
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i2c_write_byte(bus, 0x8c, &status);
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i2c_restart(bus, &status);
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i2c_write_byte(bus, 0x39 << 1 | 1, &status);
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lux = i2c_read_byte(bus, false, &status);
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lux |= i2c_read_byte(bus, true, &status) << 8;
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i2c_end(bus, &status);
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i2c_start(bus, &status);
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i2c_write_byte(bus, 0x39 << 1, &status);
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i2c_write_byte(bus, 0x8e, &status);
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i2c_restart(bus, &status);
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i2c_write_byte(bus, 0x39 << 1 | 1, &status);
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ir = ((int)i2c_read_byte(bus, false, &status));
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ir |= ((int)i2c_read_byte(bus, true, &status)) << 8;
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i2c_end(bus, &status);
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char msg[20] = "";
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display_clear(&display);
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snprintf(msg, 20, "[%d] %x, %x", count, lux, ir);
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display_write_message(&display, msg);
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display_set_location(&display, 1, 0);
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i2c_status_to_string(status, msg);
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display_write_message(&display, msg);
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_delay_ms(1000);
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count++;
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}
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}
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