PEB20320 Ver la hoja de datos (PDF) - Infineon Technologies

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PEB20320

Multichannel Network Interface Controller for HDLC

Infineon Technologies 

PEB 20320

Appendix

/*--------------------------------------------------------------------------

- Function : TxHdlcFrame

-

--------------------------------------------------------------------------

- Description : Transmit an HDLC frame via channel 0

-

--------------------------------------------------------------------------

*/

static void

TxHdlcFrame ( MUNICH_TX_DESCR_PTR m32TxDescr )

{

..

..

/*

-------------------------------------------------------------------------

*/

m32TxDescr = txDescr;

/* store transmit descriptor pointer */

channelControl[0].lasttxdescr ->next = txDescr; /* Add frame to existing */

/* channel0 frame queue */

/*=== Transmit Descriptor ===============================================*/

for ( ; txDescr ->next; txDescr

{

txDescr ->fnum = 3;

txDescr ->hold = 0;

txDescr ->hi

= 0;

txDescr ->fe

= 0;

txDescr ->v110 = 0;

}

txDescr ->fe

= 1;

txDescr ->hold

= 1;

= txDescr ->next )

/* 3 interframe timefill char

*/

/* clear hold bit

*/

/* clear host initiated interrupt bit */

/* clear frame end bit

*/

/* clear v110 bit

*/

/* set frame end bit

*/

/* set hold bit

*/

channelControl[0].lasttxdescr ->hold = 0;

/* the polling MUNICH32 */

/* will then detect the */

/* cleared hold bit and */

/* send the following

*/

/* frame

*/

channelControl[0].lasttxdescr = txDescr; /* store last transmit pointer */

}

User’s Manual

252

01.2000

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