?? extdma.c
字號(hào):
#include <string.h>
#include "2410addr.h"
#include "2410lib.h"
#include "option.h"
#include "def.h"
void _Dma0XdreqHandshakeUnit8bit(void); //SET_XDREQ16()
void _Dma0XdreqHandshakeUnit16bit(void); //SET_XDREQ16()
void _Dma0XdreqHandshakeUnit32bit(void); //SET_XDREQ16()
void _Dma0XdreqHandshakeBurst16bit(void); //SET_XDREQ16()
void _Dma0XdreqDemandUnit16bit(void); //SET_XDREQDm()
void _Dma0XdreqDemandBurst16bit(void); //SET_XDREQDm()
void _Dma0XdreqWholeUnit16bit(void); //SET_XDREQ1()
void _Dma0XdreqWholeBurst16bit(void); //SET_XDREQ1()
#define BUS8 (0)
#define BUS16 (1)
#define BUS32 (2)
//GPG9 = DMAMODE0
//GPG10 = DMAMODE1
//GPG8 = nDMASTART
#define SET_XDREQ16() rGPGDAT=(rGPGDAT&~(3<<9))|(0x1<<9) //xxx01xxx handshake
#define SET_XDREQ1() rGPGDAT=(rGPGDAT&~(3<<9))|(0x2<<9) //xxx10xxx whole
#define START_XDREQ() {rGPGDAT=(rGPGDAT&~(1<<8))|(0x0<<8);\
rGPGDAT=(rGPGDAT&~(1<<8))|(0x1<<8);} //xxx1xxx -> xxx0xxx -> xxx1xxx
#define SET_XDREQDm() rGPGDAT=(rGPGDAT&~(3<<9))|(0x3<<9) //xxx11xxx demand
//DMAMODE[1:0]: 01b= 16 time requests
// 10b= one time request
// 11b= demand request
volatile int isDma0Done;
//Verilog code for data bus pins of the EPM7032AE
//assign data[3:0] = (!nGCS && !nOE ) ? wdata:4'bz;
void IsrDma0Done(void)
{
ClearPending(BIT_DMA0);
isDma0Done=1;
}
void Test_Dma0Xdreq(void)
{
U32 savePLLCON,saveCLKDIVN;
rINTMSK=BIT_ALLMSK;
pISR_DMA0=(U32)IsrDma0Done;
rINTMSK=~(BIT_DMA0);
saveCLKDIVN=rCLKDIVN;
savePLLCON=rMPLLCON;
Uart_TxEmpty(0);
ChangeClockDivider(1,1); // 1:2:4
ChangeMPllValue(0x5c,0x4,0x1); //Fin=12MHz FCLK=100MHz
Uart_Init(25000000,115200);
rGPBCON=(rGPBCON & (~(0xf<<18))) | (0xa<<18); //GPB9=nXDACK0, GPB10=nXDREQ0
//rMISCCR=(rMISCCR & (~(0xf<<4))) | (0x3<<4); // reset value = nRSTCON bit is high
rMISCCR=0x330; //HCLK
rGPHCON=(rGPHCON & (~(0x3<<18))) | (0x2<<18); //GPH9=CLKOUT0
rGPGDAT &= (0x9<<8); // DMAMODE[1:0]=00
rGPGDAT |= (0x1<<8); // nDMASTART=1;
rGPGCON=(rGPGCON & (~(0x3f<<16))) | (0x15<<16); //GPG8=nDMASTART,GPG9=DMAMODE0,GPG10=DMAMODE1
Uart_Printf("Test Menu for Dma0 nXDREQ/nXDACK\n");
Uart_Printf("1: Single/handshake/unit/8bit src:GCS0(16) dst:SDRAM(32)\n");
Uart_Printf("2: Single/handshake/unit/16bit src:GCS0(16) dst:SDRAM(32)\n");
Uart_Printf("3: Single/handshake/unit/32bit src:GCS0(16) dst:SDRAM(32)\n");
Uart_Printf("4: Single/handshake/burst/16bit src:GCS0(16) dst:SDRAM(32)\n");
Uart_Printf("5: Whole/handshake/unit/16bit src:GCS0(16) dst:SDRAM(32)\n");
Uart_Printf("6: Whole/handshake/burst/16bit src:GCS0(16) dst:SDRAM(32)\n");
// Uart_Printf("7: Single/Demand/unit/16bit src:GCS0(16) dst:SDRAM(32)\n");
// Uart_Printf("8: Single/Demand/burst/16bit src:GCS0(16) dst:SDRAM(32)\n");
Uart_Printf("Select the item?\n");
switch(Uart_Getch())
{
case '1':
_Dma0XdreqHandshakeUnit8bit();
break;
case '2':
_Dma0XdreqHandshakeUnit16bit();
break;
case '3':
_Dma0XdreqHandshakeUnit32bit();
break;
case '4':
_Dma0XdreqHandshakeBurst16bit();
break;
case '5':
_Dma0XdreqWholeUnit16bit();
break;
case '6':
_Dma0XdreqWholeBurst16bit();
break;
/* case '7':
_Dma0XdreqDemandUnit16bit();
break;
case '8':
_Dma0XdreqDemandBurst16bit();
break;*/
default:
break;
}
rINTMSK=BIT_ALLMSK;
Uart_TxEmpty(0);
rCLKDIVN=saveCLKDIVN;
rMPLLCON=savePLLCON;
Uart_Init(0,115200);
}
void _Dma0XdreqHandshakeUnit8bit(void)
{
int i;
static U8 *bufDst;
Uart_Printf("[Dma0,Single,handShake,unit,8bit Test,B0->SDRAM]\n");
//Uart_Printf("NOTE:Ignore bit[3:0]!!\n");//?????
bufDst=(U8 *)0x31000000;//Non cacheable area
for(i=0;i<16;i++)
bufDst[i]=0;
isDma0Done=0;
rDISRC0=(int)(0x0); // B0
rDISRCC0=(0<<1)+(0<<0); // AHB, inc
rDIDST0=(U32)(bufDst); // bufDst
rDIDSTC0=(0<<1)+(0<<0); // AHB, inc
rDCON0=(1<<31)+(1<<30)+(1<<29)+(0<<28)+(0<<27)+(0<<24)+(1<<23)+(1<<22)+(0<<20)+16;
//handshake, sync HCLK, TC int, single tx, single service, nXDREQ0, H/W request,
//auto-reload off, byte, 16
rDMASKTRIG0=(0<<2)+(1<<1)+0; //no-stop, DMA2 channel on, no-sw trigger
SET_XDREQ16();
START_XDREQ();
while(isDma0Done==0);
for(i=0;i<16;i++)
Uart_Printf( "%2x,",*((U8 *)0x0+i) );
Uart_Printf("\n");
for(i=0;i<16;i++)
Uart_Printf("%2x,",bufDst[i]);
}
void _Dma0XdreqHandshakeUnit16bit(void)
{
int i;
static U16 *bufDst;
Uart_Printf("[Dma0,Single,HandShake,unit,16bit Test,B0->SDRAM]\n");
bufDst=(U16 *)0x31000000;//Non cacheable area
for(i=0;i<16;i++)//{bufSrc[i]=i;bufDst[i]=0;}
bufDst[i]=0;
isDma0Done=0;
rDISRC0=(int)(0x0); // B0
rDISRCC0=(0<<1)+(0<<0); // AHB, inc
rDIDST0=(U32)(bufDst); // bufDst
rDIDSTC0=(0<<1)+(0<<0); // AHB, inc
rDCON0=(1<<31)+(1<<30)+(1<<29)+(0<<28)+(0<<27)+(0<<24)+(1<<23)+(1<<22)+(1<<20)+16;
//handshake, sync HCLK, TC int, single tx, single service, nXDREQ0, H/W request,
//auto-reload off, half word, 16hw
rDMASKTRIG0=(0<<2)+(1<<1)+0; //no-stop, DMA2 channel on, no-sw trigger
SET_XDREQ16();
START_XDREQ();
while(isDma0Done==0);
for(i=0;i<16;i++)
Uart_Printf("%4x,",*((U16 *)0x0+i));
Uart_Printf("\n");
for(i=0;i<16;i++)
Uart_Printf("%4x,",*((U16 *)bufDst+i));
}
void _Dma0XdreqHandshakeUnit32bit(void)
{
int i;
static U32 *bufDst;
Uart_Printf("[Dma0,HandShake,unit,32bit Test,B0->SDRAM]\n");
bufDst=(U32 *)0x31000000;//Non cacheable area
for(i=0;i<16;i++)
bufDst[i]=0;
isDma0Done=0;
rDISRC0=(int)(0x0); // B0
rDISRCC0=(0<<1)+(0<<0); // AHB, inc
rDIDST0=(U32)(bufDst); // bufDst
rDIDSTC0=(0<<1)+(0<<0); // AHB, inc
rDCON0=(1<<31)+(1<<30)+(1<<29)+(0<<28)+(0<<27)+(0<<24)+(1<<23)+(1<<22)+(2<<20)+16;
//handshake, sync HCLK, TC int, single tx, single service, nXDREQ0, H/W request,
//auto-reload off, word, 16w
rDMASKTRIG0=(0<<2)+(1<<1)+0; //no-stop, DMA2 channel on, no-sw trigger
SET_XDREQ16();
START_XDREQ();
while(isDma0Done==0);
for(i=0;i<16;i++)
{
Uart_Printf("%8x,",*((U32 *)0+i));
if(i%8==7)
Uart_Printf("\n");
}
for(i=0;i<16;i++)
{
Uart_Printf("%8x,",bufDst[i]);
if(i%8==7)
Uart_Printf("\n");
}
}
void _Dma0XdreqHandshakeBurst16bit(void)
{
int i;
static U16 *bufDst;
Uart_Printf("[Dma0,HandShake,burst,16bit Test,B0->SDRAM]\n");
bufDst=(U16 *)0x31000000;//Non cacheable area
for(i=0;i<64;i++)
bufDst[i]=0;
isDma0Done=0;
rDISRC0=(int)(0x0); // B0
rDISRCC0=(0<<1)+(0<<0); // AHB, inc
rDIDST0=(U32)(bufDst); // bufDst
rDIDSTC0=(0<<1)+(0<<0); // AHB, inc
rDCON0=(1<<31)+(1<<30)+(1<<29)+(1<<28)+(0<<27)+(0<<24)+(1<<23)+(1<<22)+(1<<20)+16;
//handshake, sync HCLK, TC int, burst tx, single service, nXDREQ0, H/W request,
//auto-reload off, half-word, 64hw
rDMASKTRIG0=(0<<2)+(1<<1)+0; //no-stop, DMA2 channel on, no-sw trigger
SET_XDREQ16();
START_XDREQ();
while(isDma0Done==0);
for(i=0;i<64;i++)
{
Uart_Printf("%4x,",*((U16 *)0x0+i));
if(i%8==7)
Uart_Printf("\n");
}
Uart_Printf("\n");
for(i=0;i<64;i++)
{
Uart_Printf("%4x,",*((U16 *)bufDst+i));
if(i%8==7)Uart_Printf("\n");
}
}
void _Dma0XdreqWholeUnit16bit(void)
{
int i;
static U16 *bufDst;
Uart_Printf("[Dma0,Whole,HandShake,unit,16bit Test,B0->SDRAM]\n");
bufDst=(U16 *)0x31000000;//Non cacheable area
for(i=0;i<16;i++)
bufDst[i]=0;
isDma0Done=0;
rDISRC0=(int)(0x0); // B0
rDISRCC0=(0<<1)+(0<<0); // AHB, inc
rDIDST0=(U32)(bufDst); // bufDst
rDIDSTC0=(0<<1)+(0<<0); // AHB, inc
rDCON0=(1<<31)+(1<<30)+(1<<29)+(0<<28)+(1<<27)+(0<<24)+(1<<23)+(1<<22)+(1<<20)+16;
//handshake, sync HCLK, TC int, unit tx, whole service, nXDREQ0, H/W request,
//auto-reload off, half-word, 16hw
rDMASKTRIG0=(0<<2)+(1<<1)+0; //no-stop, DMA2 channel on, no-sw trigger
SET_XDREQ1();
START_XDREQ();
while(isDma0Done==0);
for(i=0;i<16;i++)
{
Uart_Printf("%4x,",*((U16 *)0x0+i));
if(i%8==7)
Uart_Printf("\n");
}
Uart_Printf("\n");
for(i=0;i<16;i++)
{
Uart_Printf("%4x,",*((U16 *)bufDst+i));
if(i%8==7)Uart_Printf("\n");
}
}
void _Dma0XdreqWholeBurst16bit(void)
{
int i;
static U16 *bufDst;
Uart_Printf("[Dma0,whole,burst,16bit Test,B0->SDRAM]\n");
bufDst=(U16 *)0x31000000;//Non cacheable area
for(i=0;i<64;i++)
bufDst[i]=0;
isDma0Done=0;
rDISRC0=(int)(0x0); // B0
rDISRCC0=(0<<1)+(0<<0); // AHB, inc
rDIDST0=(U32)(bufDst); // bufDst
rDIDSTC0=(0<<1)+(0<<0); // AHB, inc
rDCON0=(1<<31)+(1<<30)+(1<<29)+(1<<28)+(1<<27)+(0<<24)+(1<<23)+(1<<22)+(1<<20)+16;
//handshake, sync HCLK, TC int, burst tx, whole service, nXDREQ0, H/W request,
//auto-reload off, half-word, 64hw
rDMASKTRIG0=(0<<2)+(1<<1)+0; //no-stop, DMA2 channel on, no-sw trigger
SET_XDREQ1();
START_XDREQ();
while(isDma0Done==0);
for(i=0;i<64;i++)
{
Uart_Printf("%4x,",*((U16 *)0x0+i));
if(i%8==7)
Uart_Printf("\n");
}
Uart_Printf("\n");
for(i=0;i<64;i++)
{
Uart_Printf("%4x,",bufDst[i]);
if(i%8==7)Uart_Printf("\n");
}
}
// Demand test OK!! with another logic
void _Dma0XdreqDemandUnit16bit(void)
{
int i;
static U16 *bufDst;
Uart_Printf("[Dma0,Single,Demand,unit,16bit Test,B0->SDRAM]\n");
bufDst=(U16 *)0x31000000;//Non cacheable area
for(i=0;i<16;i++)
bufDst[i]=0;
isDma0Done=0;
rDISRC0=(int)(0x0); // B0
rDISRCC0=(0<<1)+(0<<0); // AHB, inc
rDIDST0=(U32)(bufDst); // bufDst
rDIDSTC0=(0<<1)+(0<<0); // AHB, inc
rDCON0=(0<<31)+(1<<30)+(1<<29)+(0<<28)+(0<<27)+(0<<24)+(1<<23)+(1<<22)+(1<<20)+16;
//Demand, sync HCLK, TC int, unit tx, single service, nXDREQ0, H/W request,
//auto-reload off, half-word, 16hw
rDMASKTRIG0=(0<<2)+(1<<1)+0; //no-stop, DMA2 channel on, no-sw trigger
SET_XDREQDm();
START_XDREQ();
while(isDma0Done==0);
for(i=0;i<16;i++)
{
Uart_Printf("%4x,",*((U16 *)0x0+i));
if(i%8==7)
Uart_Printf("\n");
}
Uart_Printf("\n");
for(i=0;i<16;i++)
{
Uart_Printf("%4x,",*((U16 *)bufDst+i));
if(i%8==7)Uart_Printf("\n");
}
}
void _Dma0XdreqDemandBurst16bit(void)
{
int i;
static U16 *bufDst;
Uart_Printf("[Dma0,whole,burst,16bit Test,B0->SDRAM]\n");
bufDst=(U16 *)0x31000000;//Non cacheable area
for(i=0;i<64;i++)
bufDst[i]=0;
isDma0Done=0;
rDISRC0=(int)(0x0); // B0
rDISRCC0=(0<<1)+(0<<0); // AHB, inc
rDIDST0=(U32)(bufDst); // bufDst
rDIDSTC0=(0<<1)+(0<<0); // AHB, inc
rDCON0=(0<<31)+(1<<30)+(1<<29)+(1<<28)+(0<<27)+(0<<24)+(1<<23)+(1<<22)+(1<<20)+16;
//Demand, sync HCLK, TC int, burst tx, single service, nXDREQ0, H/W request,
//auto-reload off, half-word, 64hw
rDMASKTRIG0=(0<<2)+(1<<1)+0; //no-stop, DMA2 channel on, no-sw trigger
SET_XDREQDm();
START_XDREQ();
while(isDma0Done==0);
for(i=0;i<64;i++)
{
Uart_Printf("%4x,",*((U16 *)0x0+i));
if(i%8==7)
Uart_Printf("\n");
}
Uart_Printf("\n");
for(i=0;i<64;i++)
{
Uart_Printf("%4x,",bufDst[i]);
if(i%8==7)Uart_Printf("\n");
}
}?? 快捷鍵說明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號(hào)
Ctrl + =
減小字號(hào)
Ctrl + -