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83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
/*
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* Copyright (C) 2014 BlueKitchen GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the names of
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* 4. Any redistribution, use, or modification is done solely for
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* personal benefit and not for any commercial purpose or for
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* monetary gain.
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*
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* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
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* RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Please inquire about commercial licensing options at
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* contact@bluekitchen-gmbh.com
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*
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*/
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#define __BTSTACK_FILE__ "hal_compat.c"
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/**
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* various functions to deal with flaws and portability issues
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*/
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#include "hal_compat.h"
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#include <msp430x54x.h>
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// __delay_cycles is limited
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void waitAboutOneSecond(void){
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int i;
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for (i=0;i<1000;i++) __delay_cycles(16000);
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}
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// access far text for MSP430X platform
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#if defined(__GNUC__) && (__MSP430X__ > 0)
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uint8_t FlashReadByte (uint32_t addr){
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uint8_t result;
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uint32_t register sr, flash;
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__asm__ __volatile__ (
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"mov r2 , %1 \n"
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"bic %3 , r2 \n"
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"nop \n"
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"movx.a %4 , %2 \n"
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"movx.b @%2, %0 \n"
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"mov %1 , r2 \n"
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:"=X"(result),"=r"(sr),"=r"(flash)
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:"i"(GIE),"m"(addr));
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return result;
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}
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// argument order matches memcpy
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void FlashReadBlock(uint8_t *buffer, uint32_t addr, uint16_t len){
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while (len){
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*buffer++ = FlashReadByte(addr++);
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len--;
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}
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}
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#endif
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