mirror of
https://github.com/Derisis13/AT-VFD.git
synced 2025-12-06 19:32:49 +01:00
69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
//
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// Created by lacko on 02/03/2022.
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//
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#include <avr/io.h>
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#include <util/delay.h>
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#include "PT6302.h"
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void PT6302_startup (void)
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{
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PORTB |= (CSBpin | CLKBpin);
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PORTB &= ~DINpin;
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PORTC |= RSTpin;
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DDRB |= (CSBpin | CLKBpin | DINpin);
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DDRC |= RSTpin;
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_delay_us (TPRZ);
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PORTC &= ~RSTpin;
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_delay_us (TWRSTB);
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};
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void transmit_bytes (const uint8_t *payload, const uint8_t size)
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{
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PORTB &= ~CSBpin;
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for (int i = 0; i < size; ++i)
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{
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uint8_t data = payload[i];
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for (int j = 0; j < 8; ++j)
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{
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PORTB &= ~CLKBpin;
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if ((data & 0x01) == 0)
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{
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PORTB |= DINpin;
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}
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else
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{
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PORTB &= ~DINpin;
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}
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_delay_us (TCW);
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PORTB |= CLKBpin;
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_delay_us (TCW);
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data >> 1;
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}
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_delay_us (TDOFF);
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}
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_delay_us (DTCSH);
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PORTB |= CSBpin;
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}
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void set_display_brightness (uint8_t level)
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{
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switch (level)
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{
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case 0:transmit_bytes (0x0A, 1);
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break;
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case 1:transmit_bytes (0x2A, 1);
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break;
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case 2:transmit_bytes (0x4A, 1);
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break;
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case 3:transmit_bytes (0x6A, 1);
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break;
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case 4:transmit_bytes (0x8A, 1);
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break;
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case 5:transmit_bytes (0xAA, 1);
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break;
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case 6:transmit_bytes (0xCA, 1);
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default:transmit_bytes (0xEA, 1);
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}
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}
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