174 lines
3.6 KiB
Plaintext
174 lines
3.6 KiB
Plaintext
.include "system/system.s65"
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.code
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.macro DEBUG_LED_OFF nr
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lda IO1 + IO::RA
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.if nr = 0
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and #%11111110
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.else
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and #%11111101
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.endif
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sta IO1 + IO::RA
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.endmacro
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.macro DEBUG_LED_ON nr
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lda IO1 + IO::RA
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.if nr = 0
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ora #%00000001
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.else
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ora #%00000010
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.endif
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sta IO1 + IO::RA
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.endmacro
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;********************************************************************************
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; Modules
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;********************************************************************************
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; LCD
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; .include "utility.asm6502"
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LCD_IO = IO1
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.include "system/lcd.s65"
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; Keypad Reading
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KP_IO = IO2
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.include "system/keypad.s65"
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; SPI
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SPI_IO = IO2
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.include "system/spi.s65"
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; Printer
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.include "programs/printer.s65"
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.include "programs/print_slow.s65"
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; Digital Humidity and Temerature Sensor
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; .include "dht.s65"
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;********************************************************************************
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; Interrupts
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;********************************************************************************
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.code
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nmi:
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lda #'%'
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jsr lcd_char
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rti
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irq:
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IRQ_VAR = 0
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; read IRFs, while bit 7 ist set handle interrupts
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@irq_io1:
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lda SPI_IO+IO::IFR
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sta IRQ_VAR
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bbr7 IRQ_VAR,@irq_io2
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bbs2 IRQ_VAR,@irq_spi_p ; check SR
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@irq_io2:
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; lda IO2+IO::IFR
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; sta IRQ_VAR
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; bbr7 IRQ_VAR,@irq_return
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; bbs4 IRQ_VAR,@irq_keypad ; check CB1
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; this should never be reached
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jsr lcd_clear
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Print str_irq_unknown
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; force reset interrupt flags
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lda #$ff
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sta IO1 + IO::IFR
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sta IO2 + IO::IFR
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bra @irq_return
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@irq_keypad:
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jsr kp_read_on_irq
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bra @irq_return
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@irq_spi_p:
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jsr spi_p_read
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bra @irq_return
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@irq_dht:
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lda IO1 + IO::T1CL ;T1L2 ; clear interrupt flag
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bra @irq_return
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@irq_return:
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rti
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;********************************************************************************
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; Reset sequence
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;********************************************************************************
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reset:
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jsr lcd_init
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; jsr kp_init
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jsr spi_p_init
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lda #$ff
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sta IO1 + IO::DDRA
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DEBUG_LED_OFF 0
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DEBUG_LED_OFF 1
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; ; INIT DHT
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; lda #%11000010 ; enable interrupt for Timer 1 and CA1 on IO2
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; sta IER2
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; lda #%00111111 ; set Timer 1 to interrupt when loaded
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; and ACR2
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; sta ACR2
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; lda #%00000001 ; set PCR2 bit 0 CA1 pos edge interrupt
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; ora PCR2
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; sta PCR2
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; stz DHT_STATUS
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; enable interrupts
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cli
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.proc return_home
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Print message_menu
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.endproc
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.proc home
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jsr rb_keypad_read
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beq home
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; beq home
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cmp #'A'
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jeq printer
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cmp #'B'
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jeq SPI_CODE_START
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; jeq dht_request
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cmp #'C'
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jeq print_1
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cmp #'D'
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jeq print_2
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cmp #'*' ; print home menu again if not visible (message 1 and 2 jmp to home)
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jeq return_home
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jmp home
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.endproc
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print_1:
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jsr lcd_clear
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PrintSlow message_1,10
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jmp home
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print_2:
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jsr lcd_clear
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PrintSlow message_2,10
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jmp home
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.rodata
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message_1: .asciiz " Powered by ......6502...... **** www.quintern.xyz"
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message_2:
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.byte " Hello "
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.byte " there "
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.byte " <3 "
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.asciiz "================"
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message_menu:
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.byte "<A> Printer "
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; .byte "<B> Temperatur "
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.byte "<B> Run from SPI"
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.byte "<C> Text 1 "
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.asciiz "<D> Text 2 "
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str_irq:
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.asciiz "IRQ detected! "
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str_irq_unknown:
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.asciiz "Unknown IRQ src!"
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;********************************************************************************
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; reset vector
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;********************************************************************************
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.segment "RESET_VECTOR"
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.word nmi
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.word reset
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.word irq
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