global.h

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/*
 *****************************************************************************
 * AS3993/ST25RU3993 Firmware   tech@eleckits.com   http://iot.eleckits.com  *
 * STMicroelectronics ST25RU3993 is an EPC Class 1 Gen 2 RFID reader IC      *
 *                                                                           *
 * IMPORTANT - PLEASE READ CAREFULLY BEFORE COPYING, INSTALLING OR USING     *
 * THE SOFTWARE.                                                             *
 *                                                                           *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS       *
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT         *
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS         *
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT  *
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,     *
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT          *
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,     *
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY     *
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT       *
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE     *
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.      *
 *****************************************************************************
 */
#ifndef __GLOBAL_H__
#define __GLOBAL_H__

#define SYSCLK_16MHZ                16000000ULL
#define SYSCLK_8MHZ                 8000000ULL
#define SYSCLK_4MHZ                 4000000ULL
#if 1
#define SYSCLK    SYSCLK_16MHZ
#else
#define SYSCLK    tbd
#endif
#define FCY    (SYSCLK)

#include "as3993_config.h"
#include "ams_types.h"

#define HIGH                      1

#define LOW                       0

#define BIT0    0x01
#define BIT1    0x02
#define BIT2    0x04
#define BIT3    0x08
#define BIT4    0x10
#define BIT5    0x20
#define BIT6    0x40
#define BIT7    0x80

void u32ToEbv(u32 value, u8 *ebv, u8 *len);
void insertBitStream(u8 *dest, u8 const *source, u8 len, u8 bitpos);
u32 readU32FromLittleEndianBuffer(u8 const *buffer);

#define EPCLENGTH              32  /* number of bytes for EPC, standard allows up to 62 bytes */

#define TIDLENGTH              12

#define PCLENGTH                2

#define CRCLENGTH               2

#define MAXFREQ                 53

#define MAXTUNE                 52

#define MAXTAG 45

#define MAXGEN2Q 8 /* standard allows up to 15 */

#endif