基于nios II 的自动贩卖机，FPGA软件版 C语言

#include "system.h" #include <stdio.h> #include "sys/alt_irq.h" #include "seller_sw.h" int type = 0; int coin_in = 0; int charge = 0; int cancel = 0; int reset = 0; void ISR_coin(void* context, unsigned long id) { if (COIN->DATA == 1) coin_in = coin_in + 10; else if (COIN->DATA == 2) coin_in = coin_in + 5; else if (COIN->DATA == 4) coin_in = coin_in + 1; else coin_in = coin_in; COIN->EDGE_CAPTURE = 0; } void init_coin(void) { COIN->INTERRUPT_MASK = 7; alt_irq_register(COIN_IRQ, NULL, ISR_coin); } void ISR_cancel(void* context, unsigned long id) { if (CANCEL->DATA == 1) cancel = 1; else cancel = 0; CANCEL->EDGE_CAPTURE = 0; } void init_cancel(void) { CANCEL->INTERRUPT_MASK = 1; alt_irq_register(CANCEL_IRQ, NULL, ISR_cancel); } void ISR_reset(void* context, unsigned long id) { if (RESET->DATA == 1) reset = 1; else reset = 0; RESET->EDGE_CAPTURE = 0; } void init_reset(void) { RESET->INTERRUPT_MASK = 1; alt_irq_register(RESET_IRQ, NULL, ISR_reset); } int hex_display(int i) { int j = 64; switch(i) { case 0: j = 64; break; case 1: j = 121; break; case 2: j = 36; break; case 3: j = 48; break; case 4: j = 25; break; case 5: j = 18; break; case 6: j = 2; break; case 7: j = 120; break; case 8: j = 0; break; case 9: j = 16; break; } return j; } void main() { init_coin(); init_cancel(); init_reset(); while(1) { //type select if (PRICE->DATA == 1) type = 20; else if (PRICE->DATA == 2) type = 14; else if (PRICE->DATA == 4) type = 10; else type = 0; //price display HEX7->DATA = hex_display(type/10); HEX6->DATA = hex_display(type%10); if(reset == 0) { if(cancel == 0) { if (coin_in < type) { charge = 0; READY->DATA = 0; DRINK_OUT->DATA = 0; //input coin display HEX5->DATA = hex_display(coin_in/10); HEX4->DATA = hex_display(coin_in%10); HEX2->DATA = hex_display(charge/10); HEX1->DATA = hex_display(charge/5 - charge/10 - charge/10); HEX0->DATA = hex_display(charge%5); } else if(coin_in >= type && type > 0) { charge = coin_in - type; READY->DATA = 1; DRINK_OUT->DATA = 1; HEX5->DATA = hex_display(coin_in/10); HEX4->DATA = hex_display(coin_in%10); HEX2->DATA = hex_display(charge/10); HEX1->DATA = hex_display(charge/5 - charge/10 - charge/10); HEX0->DATA = hex_display(charge%5); } } else { READY->DATA = 0; DRINK_OUT->DATA = 0; HEX5->DATA = hex_display(0); HEX4->DATA = hex_display(0); HEX2->DATA = hex_display(coin_in/10); HEX1->DATA = hex_display(coin_in/5 - coin_in/10 - coin_in/10); HEX0->DATA = hex_display(coin_in%5); coin_in = 0; charge = 0; cancel = 0; } } else { READY->DATA = 0; coin_in = 0; charge = 0; cancel = 0; reset = 0; HEX5->DATA = hex_display(coin_in/10); HEX4->DATA = hex_display(coin_in%10); HEX2->DATA = hex_display(charge/10); HEX1->DATA = hex_display(charge/5 - charge/10 - charge/10); HEX0->DATA = hex_display(charge%5); } } return 0; }