bsp_board_olimex_H2103.h

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/*
 *  CMSIS2000
 *  CMSIS-like sources for LPC2xxx series MCUs
 *
 *  (C) Copyright 2011-2012, Dmitriy Cherepanov, All Rights Reserved
 *
 *  Version: 0.0.7
 *  Date of the Last Update:  2013-03-04
 *  
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 *  of this software and associated documentation files (the "Software"), to
 *  deal in the Software without restriction, including without limitation the
 *  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 *  sell copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in
 *  all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 *  IN THE SOFTWARE.
 *
 *  Do not be lasy! For the latest version see http://irtos.sourceforge.net .
 *
 *  
#*/
#ifndef BSP_BOARD_DEF_H
#define BSP_BOARD_DEF_H         1

#ifndef bsp_board_olimex_H2103
        #define bsp_board_olimex_H2103  1
#endif
/*-----------i_ is the  i_DENTIFICATION DEFENITIONS --------------------------*/
#define i_ARCH          ARM7

#define i_MCU_FAMILY    LPC2xxx

#define i_MCU_MODEL     2103

#define i_BOARD         olimex_H2103

#define i_VENDOR        olimex

#define i_VERSION       0x010000
/*----------------------------------------------------------------------------*/
#define BSP_BOARD_HAS_UART0             1
#define BSP_BOARD_HAS_UART1             1
/*----------------------------------------------------------------------------*/
/** \brief Setting the Phased Lock Loop (PLL) for Olimex LPC-H2103 14.7456 MHz crystal
 *
 *        ----------------------------------
 *
 * Olimex LPC-H2103 has a 14.7456 mhz crystal
 *
 * We'd like the LPC2106 to run at 53.2368 mhz (has to be an even multiple of crystal)
 *
 * According to the Philips LPC2106 manual:
 * M = cclk / Fosc      where:  M    = PLL multiplier (bits 0-4 of PLLCFG)
 *                      cclk = 53236800 hz
 *                                              Fosc = 14745600 hz
 *
 * Solving:     M = 53236800 / 14745600 = 3.6103515625
 *      M = 4 (round up)
 *
 *Note: M - 1 must be entered into bits 0-4 of PLLCFG (assign 3 to these bits)
 *
 *
 * The Current Controlled Oscilator (CCO) must operate in the range 156 mhz to 320 mhz
 *
 * According to the Philips LPC2106 manual:
 *              Fcco = cclk * 2 * P    where:   Fcco = CCO frequency
 *              cclk = 53236800 hz
 *              P = PLL divisor (bits 5-6 of PLLCFG)
 *
 * Solving:     Fcco = 53236800 * 2 * P
 *              P = 2  (trial value)
 *              Fcco = 53236800 * 2 * 2
 *              Fcc0 = 212947200 hz
 *       (good choice for P since it's within the 156 mhz to 320 mhz range
 *
 * From Table 19 (page 48) of Philips LPC2106 manual
 *      P = 2, PLLCFG bits 5-6 = 1  (assign 1 to these bits)
 *
 * Finally:      PLLCFG = 0  01  00011  =  0x23
 *
 *      Final note: to load PLLCFG register,
 *      we must use the 0xAA followed 0x55 write sequence to the PLLFEED register
 *      this is done in the short function feed() below
 **/

#define XTAL_HZ         14745600UL
/* Fcck = 48Mhz, Fosc = 288Mhz, and USB 48Mhz */
/*Fcck = 2 * (PLL_MValue + 1) * F_OSC_HZ)/(PLL_NValue + 1) /(CCLKCFG_Val + 1))
        Fcck = 2 * 12 * 12 = 288Mhz
        Fcck = Fosc * (PLL_MValue + 1) = 14,7456 * (3 + 1 ) = 58,9824 Mhz --> useful for UART 57600 baud and etc.
        Fcco =  Fcck  * 2 *(1<<PLL_Palue)  = 48Mhz FCCO must be in the range of 156 MHz to 320 MHz.
*/
#define PLL_MValue              3
#define PLL_PValue              1
/*-----------Peripheral clock selsection -------------------------------------*/

#define PCLK_DIVIDER            4
#endif /*BSP_BOARD_DEF_H*/