rfoverridedataformat.c

ti-Chipcon CC1010 1G以下Soc源码库。包括rf,powermodes,clockmodes,flashRW,interrupts,timer,pwm,uart...所有底层驱动源码

/*****************************************************************************
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 *      ***        ***                                                       *
 *      ***   +++   ***                                                      *
 *      ***   + +   ***                                                      *
 *      ***   +                            CHIPCON CC1010                    *
 *      ***   + +   ***                 HAL - RFOverrideDataFormat           *
 *      ***   +++   ***                                                      *
 *      ***       ***                                                        *
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 * Author:              ROH                                                  *
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 * Revision history:                                                         *
 *                                                                           *
 * $Log: RFOverrideDataFormat.c,v $
 * Revision 1.1  2002/10/14 13:04:33  tos
 * Initial version in CVS.
 *
 *                                                                           *
 ****************************************************************************/

#include <chipcon/hal.h>

// Variables that are used to override baudrate and PA output power
extern byte xdata   hal_dataformat_override, 
                    hal_baudrate_override, 
                    hal_pa_pow_override,
                    hal_modem0_original,
                    hal_pa_pow_original;

//----------------------------------------------------------------------------
//  void halRFOverrideDataFormat(...)
//
//  Description:
//      Function used to override the dataformat specified by an RX/TX-pair.
//      If this function is called before halRFSetRxTxOff(...) it uses
//      the parameter passed to this function instead of whatever the
//      RX/TX-pair defines. If it is passed during an RF-operation, i.e. after
//      halRFSetRxTxOff(...) is called, the parameter passed is immediately
//      updated in hardware.
//
//  Arguments:
//      byte dataFormat
//          Options given below. To disable the override the function must be
//          called with the parameter RF_NO_OVERRIDE.
//
//  Return value:
//      void
//----------------------------------------------------------------------------
void halRFOverrideDataFormat(byte dataFormat) {
    if (hal_dataformat_override=dataFormat)
        MODEM0=(MODEM0&0xE7)|(dataFormat&0x18);
    else
        MODEM0=(MODEM0&0xE7)|(hal_modem0_original&0x18);
}