?? dram.c
字號:
#include "Option.h"
#include "2413addr.h"
#include "DRAM.h"
void PreChangeSDRAMParameter(void)
{
SetREFRESH(0x20);
SetPARAMETER( 0xf, 0xf, 0x3, 0x3,3);
}
void ChangeSDRAMParameter(unsigned int hclk)
{
//SetREFRESH(hclk/1000*tREFRESH/100000);
SetREFRESH(hclk/1000*780/100000);
SetPARAMETER( (hclk/1000*tRAS-1)/1000000, (hclk/1000*tRC-1)/1000000, (hclk/1000*tRCD-1)/1000000, (hclk/1000*tRP-1)/1000000, CL);
//SetPARAMETER( (hclk/1000*60-1)/1000000, (hclk/1000*90-1)/1000000, (hclk/1000*30-1)/1000000, (hclk/1000*30-1)/1000000);
}
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