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46 lines
1.1 KiB
C
46 lines
1.1 KiB
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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* @author Matthias Ringwald
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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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