getset.c

This network protcol stack,it is very strong and powerful!

/************************************************************************************
* Get and Set PIB attribute values in physical layer.
*
* Author(s): Jesper Thomsen, Thomas Otvald Jensen
*
* (c) Copyright 2004, Freescale, Inc.  All rights reserved.
*
* Freescale Confidential Proprietary
* Digianswer Confidential
*
* No part of this document must be reproduced in any form - including copied,
* transcribed, printed or by any electronic means - without specific written
* permission from Freescale.
*
* Last Inspected:
* Last Tested:
************************************************************************************/

#include "DigiType.h"
#include "Phy.h"
#include "PhyMacMsg.h"

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* Private macros
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* Private type definitions
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* Public memory declarations
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* Private memory declarations
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* Public functions
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/************************************************************************************
* Configure frequency dividers in Abel from PHY layer channel. 
*
* Channels 11-26
* Abel divider pseudo table
*  0x95, 0x95, 0x95, 0x96,
*  0x96, 0x96, 0x97, 0x97,
*  0x97, 0x98, 0x98, 0x98,
*  0x99, 0x99, 0x99, 0x9a
*
* Abel numerator pseudo table
*  0x5000, 0xa000, 0xf000, 0x4000,
*  0x9000, 0xe000, 0x3000, 0x8000,
*  0xd000, 0x2000, 0x7000, 0xc000,
*  0x1000, 0x6000, 0xb000, 0x0000
*
* Conversion pseudo function:
*
*   channel   = (channel - 10)*5;
*   divider   = 0x95 + channel>>4;
*   numerator = channel << 12;
*   
* Interface assumptions:
*   Channels range from 11-26 - no range check!
*
* Return value:
*   NONE
*
* Revision history:
*
*    Date    Author    Comments
*   ------   ------    --------
*   010903   TOJ       Created
*   111004    JT       Changed to only setting the channel not PhyPib
*
************************************************************************************/
void PhyPlmeSetCurrentChannelRequest(uint8_t channel)
{
  uint16_t iDiv, Num;
    // Convert from channel into divider values in Abel
  channel = channel - 10;
  channel=channel*5;
  ABEL_READ_INT(ABEL_LO1DIV_REG, iDiv);
    // Set lowest 8 bit, which are iDiv
  iDiv = (iDiv & ~cIDIV8mask);
  iDiv = (iDiv | (uint8_t)(0x95+(channel>>4)));
  ABEL_WRITE_INT(ABEL_LO1DIV_REG, iDiv);

  channel = channel << 4;   // Shift by 4 for optimal asm 
  Num = channel << 8;
  ABEL_WRITE_INT(ABEL_LO1NUM_REG, Num);
}

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* Private functions
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* Module debug stuff
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