47 wiersze
975 B
C
47 wiersze
975 B
C
// pic_init unit for Micro C PRO
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// David Fainitski for ATU-100 project
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// PIC18F2520 Microchip
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void pic_init (void) {
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WDTCON.B5 = 0;
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WDTCON.B4 = 1;
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WDTCON.B3 = 0; // 1 sec WDT
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WDTCON.B2 = 1;
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WDTCON.B1 = 0;
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asm CLRWDT
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ANSELA = 0;
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ANSA0_bit = 1; // analog inputs
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ANSA1_bit = 1;
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ANSELB = 0; // all as digital
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C1ON_bit = 0; // Disable comparators
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C2ON_bit = 0;
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OSCCON = 0b01111000; // 16 MHz oscillator
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PORTA = 0;
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PORTB = 0;
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PORTC = 0;
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LATA = 0b00001000; // PORT3 /Tx_req to 1
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LATB = 0;
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LATC = 0;
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TRISA = 0b00000011;
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TRISB = 0b11111111;
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TRISC = 0b00000000; //
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//
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ADC_Init();
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//
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ADCON1.B0 = 1; // ADC with the internal reference
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ADCON1.B1 = 1;
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//
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OPTION_REG.B7 = 0;
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WPUB.B0 = 1; // PORTB0 Pull-up resistor
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WPUB.B1 = 1; // PORTB1 Pull-up resistor
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WPUB.B2 = 1; // PORTB2 Pull-up resistor
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//interrupt setting
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GIE_bit = 0;
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} |