?? cache.c
字號:
#include "44b.h"
#include "Cache.h"
void Cache_Init(void)
{
rSYSCFG = SYSCFG_8KB; //Write buffer enable; 8KB Cache;
rNCACHBE0 = ( 0x02000000 >> 12 ) | ( (0x0C000000 >> 12 ) << 16 );//禁止 0x02000000 ~ 0x0BFFFFFF 進入cache
}
//禁止0000000到02000000地址的數(shù)據(jù)進入CACHE
void Disable_Cache_Flash(void)
{
rNCACHBE1 = ( 0x00000000 >> 12 ) | ( (0x02000000 >> 12 ) << 16 );
}
//允許0000000到02000000地址的數(shù)據(jù)進入CACHE
void Enable_Cache_Flash(void)
{
rNCACHBE1 = 0x00000000;
}
void Enable_Cache(void)
{
rSYSCFG = rSYSCFG | 0x06;
}
void Disable_Cache(void)
{
rSYSCFG = rSYSCFG & (~0x06);
}
void Enable_WriteBuf(void)
{
rSYSCFG = rSYSCFG | 0x08;
}
void Disable_WriteBuf(void)
{
rSYSCFG = rSYSCFG & (~0x08);
}
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