Delta Electronics VFD-EL manual outportbPORT+MCR,0x08, 09.07

Chapter 4 Parameters

#define BRDL 0x0000 #define IER 0x0001 #define BRDH 0x0001 #define LCR 0x0003 #define MCR 0x0004 #define LSR 0x0005 #define MSR 0x0006 unsigned char rdat[60];

/* read 2 data from address 2102H of AC drive with address 1 */ unsigned char tdat[60]={':','0','1','0','3','2','1','0',’2', '0','0','0','2','D','7','\r','\n'}; void main(){

int i;
outportb(PORT+MCR,0x08);	/* interrupt enable */
outportb(PORT+IER,0x01);	/* interrupt as data in */

outportb(PORT+LCR,(inportb(PORT+LCR) 0x80)); /* the BRDL/BRDH can be access as LCR.b7==1 */

outportb(PORT+BRDL,12);	/* set baudrate=9600, 12=115200/9600*/
outportb(PORT+BRDH,0x00);
outportb(PORT+LCR,0x06);	/* set protocol, <7,N,2>=06H, <7,E,1>=1AH,

<7,O,1>=0AH, <8,N,2>=07H, <8,E,1>=1BH, <8,O,1>=0BH */ for(i=0;i<=16;i++){

while(!(inportb(PORT+LSR) & 0x20)); /* wait until THR empty */

outportb(PORT+THR,tdat[i]);	/* send data to THR */ }
i=0;

while(!kbhit()){

if(inportb(PORT+LSR) & 0x01){ /* b0==1, read data ready */ rdat[i++]=inportb(PORT+RDR); /* read data form RDR */

} } }

09.05Reserved

09.06Reserved

09.07	Response Delay Time		Unit: 2ms
	Settings	0 ~ 200 (400msec)	Factory Setting: 1

This parameter is the response delay time after AC drive receives communication command as shown in the following. 1 unit = 2 msec.

4-98 Revision August 2008, 2ELE, V1.02