#include #include #include"WAI16.h" int Base=0x220; int Dma=1; int Irq=15; int Buf[1000]; void main(void) { int err; int quit=0; int i; float rate=5.0/2048.0; int c1,c2; err=WAI16_Initialize(0,Base,Dma,Irq); if(err){ if(err==CheckBoardError){ printf("Address 0 Error!\n"); } else if(err==CardNumError){ printf("Card Number Error!(range:0-7)\n"); } return; } printf("\nCard 0 [DMA test]\n"); WAI16_AD_SetChGainMode(0,WAI16_BI_1,DMA_MODE); WAI16_Delay(4*2); /* delay the 4 uS settling time */ c1=6; c2=6; quit=0; while(!quit){ WAI16_AD_DMA_Start(Buf,1000,c1,c2); while(WAI16_AD_DMA_Status()){ if(kbhit() && getch()==27) { quit=1; break; } }; WAI16_AD_DMA_Stop(); if(kbhit() && getch()==27) break; printf("\n----- press ESC to STOP -----\n"); for(i=0;i<1000;i+=100){ Buf[i]&=0xfff; /* in DMA mode must change bit 12 to 0 */ printf("[%3d]:[%x]:%6.3f\n",i,Buf[i],rate*(Buf[i]-2048)); } delay(1000); } }