Elo TouchSystems 2201L Spezifikationen PDF herunterladen (Seite 80)

70 Chapter 5 - Software Interface

union REGS regs;

regs.x.ax = 0xc400;

int86(0x15,&regs,&regs);

posbase = regs.x.dx;

for (i=1; i<9; i++) { /* check each slot for 2202 controller */

regs.x.ax = 0xc401;

regs.h.bl = i;

int86(0x15,&regs,&regs);

for (j=0; j<8; j++) /* read ID and POS registers */

mcainfo[j] = (byte)inp(posbase+j);

regs.x.ax = 0xc402;

regs.h.bl = i;

int86(0x15,&regs,&regs);

if (((mcainfo[0] + ((unsigned)mcainfo[1] << 8)) == IBM_ID) && /* check ID */

((mcainfo[6] + ((unsigned)mcainfo[7] << 8)) == ~IBM_ID)) {

baseport = mcainfo[3] + ((unsigned)mcainfo[4] << 8);

/* intrpt = mcainfo[5] & 0xf; */

return(OK);

}

return(NOCONTROLLER);

}

void resetmcacontrollerpos(void)

/* disable controller so it can be detected again through POS registers */

{

static packettype quiet = {'Q',1,0,0,0,0,0,0};

sendpacket(quiet); /* no acknowledge on Quiet all command */

}

Interrupt-Driven Code

Interrupt-driven code is hardware and operating system dependent, and is

therefore beyond the scope of this manual. To simplify the code required, you may

use the polled code in the previous examples to locate and set up the controller,

then operate with one-way communication only. The interrupt service routine then

only has to accept Touch packets.

For more information on bus controller interrupts, see Interrupt Mode, page 56.

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Jj connect H-Sense User Manual (6 pages)

Brand: Jj-connect | Category: GPS receiver | Size: 0.21 MB |

Введение

Функциональные особенности

Технические характеристики

Комплектация

Подключение прибора

Разъем PS/2

Внешний вид прибора

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