Eclipse開發(fā)調試ARM裸機程序(七)sd卡讀寫

#include #include typedef unsigned int u_size;int main(){u_size a = 0, b = 0, c = 0, d = 0;//CSD = 003e00325b5a83c5e597ffff12800000a = 0x003e0032; //[127:96]b = 0x5b5a83c5; //[95 :64]c = 0xe597ffff; //[63 :32]d = 0x12800000; //[31 :0 ]u_size CSD_STRUCTURE      = a / (u_size)pow(2,30) & 0x3;    // [127:126 - 96]u_size TAAC               = a/(u_size)pow(2,16) & 0xff; // [119:112]u_size NSAC               = a/(u_size)pow(2,8)  & 0xff; // [111:104]u_size TRAN_SPEED         = a/(u_size)pow(2,0)  & 0xff;                              // [103:96  - 96]u_size CCC                = b/(u_size)pow(2,20) & 0xfff;u_size READ_BL_LEN        = b/(u_size)pow(2,16) & 0xf;  // [83:80-64]u_size READ_BL_PARTIA     = b/(u_size)pow(2,15) & 0x1;u_size WRITE_BLK_MISALIGN = b/(u_size)pow(2,14) & 0x1;u_size READ_BLK_MISALIGN  = b/(u_size)pow(2,13) & 0x1;u_size DSR_IMP            = b/(u_size)pow(2,12) & 0x1;u_size C_SIZE             = (b & 0x3ff)*(u_size)pow(2,2) + ((c /(u_size)pow(2,30)) & 0x3);                // [73:62]u_size VDD_R_CURR_MIN     = c/(u_size)pow(2,27) & 0x7;u_size VDD_R_CURR_MAX     = c/(u_size)pow(2,24) & 0x7;u_size VDD_W_CURR_MIN     = c/(u_size)pow(2,21) & 0x7;u_size VDD_W_CURR_MAX     = c/(u_size)pow(2,18) & 0x7;u_size C_SIZE_MULT        = c/(u_size)pow(2,15) & 0x7;  // [49:47]u_size ERASE_BLK_EN       = d/(u_size)pow(2,14) & 0x1;u_size SECTOR_SIZE        = d/(u_size)pow(2,7)  & 0xef;u_size WP_GRP_SIZE        = c/(u_size)pow(2,0)  & 0xef;u_size WP_GRP_ENABLE      = d/(u_size)pow(2,31) & 0x1;u_size R2W_FACTOR         = d/(u_size)pow(2,26) & 0x7;u_size WRITE_BL_LEN       = d/(u_size)pow(2,22) & 0xf;u_size WRITE_BL_PARTIAL   = d/(u_size)pow(2,21) & 0x1;u_size TMP_WRITE_PROTECT  = d/(u_size)pow(2,12) & 0x1;u_size FILE_FORMAT        = d/(u_size)pow(2,10) & 0x3;u_size CRC                = d/(u_size)pow(2,1)  & 0xff;long C                    = (C_SIZE + 1) * pow(2, (C_SIZE_MULT+2)) * pow(2, READ_BL_LEN);//       C                    = (3863 + 1) * 512 * 1024printf(" 1. CSD_STRUCTURE       = 0x%xn", CSD_STRUCTURE);printf(" 3. TAAC                = 0x%xn", TAAC);printf(" 4. NSAC                = 0x%xn", NSAC);printf(" 5. TRAN_SPEED          = 0x%x (0x32==>25MHz;0x5a==>50MHz)n", TRAN_SPEED);printf(" 6. CCC                 = 0x%xn", CCC);printf(" 7. READ_BL_LEN         = %dn", READ_BL_LEN);printf(" 8. READ_BL_PARTIA      = %dn", READ_BL_PARTIA);printf(" 9. WRITE_BLK_MISALIGN  = %dn", WRITE_BLK_MISALIGN);printf("10. READ_BLK_MISALIGN   = %dn", READ_BLK_MISALIGN);printf("11. DSR_IMP             = %dn", DSR_IMP);printf("12.            / *No Use* /n");printf("13. C_SIZE              = %dn", C_SIZE);printf("14. VDD_R_CURR_MIN      = %dn", VDD_R_CURR_MIN);printf("15. VDD_R_CURR_MAX      = %dn", VDD_R_CURR_MAX);printf("16. VDD_W_CURR_MIN      = %dn", VDD_W_CURR_MIN);printf("17. VDD_W_CURR_MAX      = %dn", VDD_W_CURR_MAX);printf("18. C_SIZE_MULT         = %dt""(本SD卡容量 = %f G)n", C_SIZE_MULT, (float)C/1073741824);printf("19. ERASE_BLK_EN        = 0x%xn", ERASE_BLK_EN);printf("20. SECTOR_SIZE         = 0x%xn", SECTOR_SIZE);printf("21. WP_GRP_SIZE         = 0x%xn", WP_GRP_SIZE);printf("22. WP_GRP_ENABLE       = 0x%xn", WP_GRP_ENABLE);printf("23.            / *No Use* /n");printf("24. R2W_FACTOR          = 0x%xn", R2W_FACTOR);printf("25. WRITE_BL_LEN        = 0x%xn", WRITE_BL_LEN);printf("26. WRITE_BL_PARTIAL    = 0x%xn", WRITE_BL_PARTIAL);printf("31. TMP_WRITE_PROTECT   = 0x%xn", TMP_WRITE_PROTECT);printf("32. FILE_FORMAT         = 0x%xn", FILE_FORMAT);printf("34. CRC                 = 0x%xt", CRC);return 0;}

/* @file     sdi.c* @brief    sd卡 讀寫* @details  本程序實現了，讀SD卡的CSD寄存器；讀寫SD卡，并用LED顯示。*           程序正常：led1首先點亮，然后是0-15的二進制顯示*           程序出錯：led2首先點亮，然后是亂無序的二進制顯示*           目前只能讀寫2G以下的SD卡*           （啟動代碼是適用于mini2440 nand 256M的開發(fā)板）*           讀寫SD有三種模式：中斷，DMA中斷，查詢。本程序使用的是查詢* @author   kangear* @date     2013-4-26* @version  A001* @par Copyright (c):*           XXX公司* @par History:*   version: author, date, descn** docs    1.SD Specifications Part 1 Physical Layer Simplified Specification Version 4.10 January 22, 2013.pdf*         2.SD Specifications Part A1 Advanced Security SD Extension Simplified Specification Version 2.00 May 18, 2010.pdf*         3.SD Specifications Part A2 SD Host Controller Simplified Specification Version 3.00 February 25, 2011.pdf*         4.SD Specifications Part E1 SDIO Simplified Specification Version 3.00 February 25, 2011.pdf** download addr:https://www.sdcard.org/downloads/pls/simplified_specs/*///#include //#include #include "def.h"http://#include "option.h"http://#include "2440addr.h"#include "s3c24xx.h"http://#include "2440lib.h"#include "sdi.h"/** 用在SDICCON中的[７:０]　現在沒有搞懂它的實際意義* ＣＭＤ１?。健AGIC_NUMBER | 1*/#define	MAGIC_NUMBER 64#define INICLK	300000#define SDCLK	24000000	//PCLK=49.392MHz#define POL	0#define INT	1#define DMA	2int CMD13(void);    // Send card statusint CMD9(void);unsigned int *Tx_buffer;	//128[word]*16[blk]=8192[byte]unsigned int *Rx_buffer;	//128[word]*16[blk]=8192[byte]volatile unsigned int rd_cnt;volatile unsigned int wt_cnt;volatile unsigned int block;volatile unsigned int TR_end=0;int Wide=0; // 0:1bit, 1:4bitint MMC=0;  // 0:SD  , 1:MMCint  Maker_ID;char Product_Name[7]; int  Serial_Num;int PCLK = 50000000;volatile int RCA;void Test_SDI(void){U32 save_rGPEUP, save_rGPECON;RCA=0;MMC=0;block=3072;   //3072Blocks=1.5MByte, ((2Block=1024Byte)*1024Block=1MByte)save_rGPEUP=GPEUP;save_rGPECON=GPECON;GPEUP  = 0xf83f;     // SDCMD, SDDAT[3:0] => PU En.GPECON = 0xaaaaaaaa;	//SDCMD, SDDAT[3:0]//Uart_Printf("nSDI Card Write and Read Testn");if(!SD_card_init())return;TR_Buf_new();Wt_Block();Rd_Block();View_Rx_buf();Card_sel_desel(0);	// Card deselectif(!CMD9())//Uart_Printf("Get CSD fail!!!n");SDIDCON=0;//tark???SDICSTA=0xffff;GPEUP=save_rGPEUP;GPECON=save_rGPECON;}void TR_Buf_new(void){//-- Tx & Rx Buffer initializeint i, j;Tx_buffer=(unsigned int *)0x31000000;j=0;for(i=0;i<2048;i++)	//128[word]*16[blk]=8192[byte]*(Tx_buffer+i)=i+j;Flush_Rx_buf();}void Flush_Rx_buf(void){//-- Flushing Rx buffer int i;Rx_buffer=(unsigned int *)0x31800000;for(i=0;i<2048;i++)	//128[word]*16[blk]=8192[byte]*(Rx_buffer+i)=0;//Uart_Printf("End Rx buffer flushn");}void View_Rx_buf(){//-- Display Rx buffer int i,error=0;Tx_buffer=(unsigned int *)0x31000000;Rx_buffer=(unsigned int *)0x31800000;//Uart_Printf("Check Rx datan");for(i=0;i<128*block;i++){if(Rx_buffer[i] != Tx_buffer[i]){//Uart_Printf("nTx/Rx errorn");//Uart_Printf("%d:Tx-0x%08x, Rx-0x%08xn",i,Tx_buffer[i], Rx_buffer[i]);error=1;break;}////Uart_Printf(".");}if(!error){//Uart_Printf("nThe Tx_buffer is same to Rx_buffer!n");//Uart_Printf("SD CARD Write and Read test is OK!n");}}void View_Tx_buf(void){}int SD_card_init(void){//-- SD controller & card initialize int i;/* Important notice for MMC test condition *//* Cmd & Data lines must be enabled by pull up resister */SDIPRE=PCLK/(INICLK)-1;	// 400KHz//Uart_Printf("Init. Frequency is %dHzn",(PCLK/(SDIPRE+1)));SDICON=(1<<4)|1;	// Type B, clk enableSDIFSTA=SDIFSTA|(1<<16);	//YH 040223 FIFO resetSDIBSIZE=0x200;		// 512byte(128word)SDIDTIMER=0x7fffff;		// Set timeout countfor(i=0;i<0x1000;i++);  // Wait 74SDCLK for MMC cardCMD0();//Uart_Printf("In idlen");//-- Check SD card OCRif(!Chk_SD_OCR()){// failGPBDAT = (~(2<<5));	 	// 點亮LED2//Uart_Printf("Initialize failnNo Card assertionn");return 0;}//	Uart_Printf("In SD readyn");GPBDAT = (~(1<<5));	 	// 點亮LED1do{//-- Check attaced cards, it makes card identification stateSDICARG = 0x0; // CMD2(stuff bit)SDICCON = (0x1 << 10) | (0x1 << 9) | (0x1 << 8) | (MAGIC_NUMBER | 2); //lng_resp, wait_resp, start, CMD2//-- Check end of CMD2} while (!Chk_CMDend(2, 1));SDICSTA=0xa00;	// Clear cmd_end(with rsp)//Uart_Printf("End idn");do{//--Send RCASDICARG = MMC << 16; // CMD3(MMC:Set RCA, SD:Ask RCA-->SBZ)SDICCON = (0x1 << 9) | (0x1 << 8) | (MAGIC_NUMBER | 3); // sht_resp, wait_resp, start, CMD3//-- Check end of CMD3if (!Chk_CMDend(3, 1))continue;SDICSTA = 0xa00; // Clear cmd_end(with rsp)//--Publish RCARCA = (SDIRSP0 & 0xffff0000) >> 16;//Uart_Printf("RCA=0x%xn",RCA);SDIPRE = PCLK / (SDCLK) - 1; // Normal clock=25MHz//Uart_Printf("SD Frequency is %dHzn",(PCLK/(SDIPRE+1)));//--State(stand-by) checkif (SDIRSP0 & 0x1e00 != 0x600) // CURRENT_STATE checkcontinue;} while (0);//Uart_Printf("In stand-byn");Card_sel_desel(1);	// SelectSet_4bit_bus();return 1;}void Card_sel_desel(char sel_desel){//-- Card select or deselectif(sel_desel){do{SDICARG = RCA << 16; // CMD7(RCA,stuff bit)SDICCON = (0x1 << 9) | (0x1 << 8) | (MAGIC_NUMBER | 7); // sht_resp, wait_resp, start, CMD7//-- Check end of CMD7if (!Chk_CMDend(7, 1))continue;SDICSTA = 0xa00; // Clear cmd_end(with rsp)//--State(transfer) checkif (SDIRSP0 & 0x1e00 != 0x800)continue;} while (0);}else{do{SDICARG = 0 << 16; //CMD7(RCA,stuff bit)SDICCON = (0x1 << 8) | (MAGIC_NUMBER | 7); //no_resp, start, CMD7//-- Check end of CMD7if (!Chk_CMDend(7, 0))continue;} while (0);SDICSTA=0x800;	// Clear cmd_end(no rsp)}}//void __irq Rd_Int(void)//{//	U32 i,status;////	status=SDIFSTA;//	if( (status&0x200) == 0x200 )	// Check Last interrupt?//	{//		for(i=(status & 0x7f)/4;i>0;i--)//		{//			*Rx_buffer++=SDIDAT;//			rd_cnt++;//		}//		SDIFSTA=SDIFSTA&0x200;	//Clear Rx FIFO Last data Ready, YH 040221//	}//	else if( (status&0x80) == 0x80 )	// Check Half interrupt?//	{//		for(i=0;i<8;i++)//		{//			*Rx_buffer++=SDIDAT;//			rd_cnt++;//		}//	}////	ClearPending(BIT_SDI);//}//void __irq Wt_Int(void)//{//	ClearPending(BIT_SDI);////	SDIDAT=*Tx_buffer++;//	wt_cnt++;////	if(wt_cnt==128*block)//	{//		rINTMSK |= BIT_SDI;//		SDIDAT=*Tx_buffer;//		TR_end=1;//	}//}////void __irq DMA_end(void)//{//	ClearPending(BIT_DMA0);////	TR_end=1;//}void Rd_Block(void){U32 mode;int status;rd_cnt=0;    //Uart_Printf("Block read test[ Polling read ]n");mode = 0 ;SDIFSTA=SDIFSTA|(1<<16);	// FIFO resetif(mode!=2)SDIDCON=(2<<22)|(1<<19)|(1<<17)|(Wide<<16)|(1<<14)|(2<<12)|(block<<0);	//YH 040220SDICARG=0x0;	// CMD17/18(addr)RERDCMD:switch(mode){case POL:if(block<2)	// SINGLE_READ{SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 17);    // sht_resp, wait_resp, dat, start, CMD17if(!Chk_CMDend(17, 1))	//-- Check end of CMD17goto RERDCMD;	    }else	// MULTI_READ{SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 18);    // sht_resp, wait_resp, dat, start, CMD18if(!Chk_CMDend(18, 1))	//-- Check end of CMD18 goto RERDCMD;}SDICSTA=0xa00;	// Clear cmd_end(with rsp)while(rd_cnt<128*block)	// 512*block bytes{if((SDIDSTA&0x20)==0x20) // Check timeout{SDIDSTA=(0x1<<0x5);  // Clear timeout flagbreak;}status=SDIFSTA;if((status&0x1000)==0x1000)	// Is Rx data?{*Rx_buffer++=SDIDAT;rd_cnt++;}}break;//		case INT://			pISR_SDI=(unsigned)Rd_Int;//			rINTMSK = ~(BIT_SDI);////			rSDIIMSK=5;	// Last & Rx FIFO half int.////			if(block<2)	// SINGLE_READ//			{//				SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 17);    // sht_resp, wait_resp, dat, start, CMD17//				if(!Chk_CMDend(17, 1))	//-- Check end of CMD17//					goto RERDCMD;//			}//			else	// MULTI_READ//			{//				SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 18);    // sht_resp, wait_resp, dat, start, CMD18//				if(!Chk_CMDend(18, 1))	//-- Check end of CMD18//				goto RERDCMD;//			}////			SDICSTA=0xa00;	// Clear cmd_end(with rsp)////			while(rd_cnt<128*block);////			rINTMSK |= (BIT_SDI);//			rSDIIMSK=0;	// All mask//			break;////		case DMA://			pISR_DMA0=(unsigned)DMA_end;//			rINTMSK = ~(BIT_DMA0);//			SDIDCON=SDIDCON|(1<<24); //YH 040227, Burst4 Enable////			rDISRC0=(int)(SDIDAT);	// SDIDAT//			rDISRCC0=(1<<1)+(1<<0);	// APB, fix//			rDIDST0=(U32)(Rx_buffer);	// Rx_buffer//			rDIDSTC0=(0<<1)+(0<<0);	// AHB, inc//			rDCON0=(1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(2<<24)+(1<<23)+(1<<22)+(2<<20)+128*block;////			rDMASKTRIG0=(0<<2)+(1<<1)+0;    //no-stop, DMA2 channel on, no-sw trigger////			SDIDCON=(2<<22)|(1<<19)|(1<<17)|(Wide<<16)|(1<<15)|(1<<14)|(2<<12)|(block<<0);//			if(block<2)	// SINGLE_READ//			{//				SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 17);    // sht_resp, wait_resp, dat, start, CMD17//				if(!Chk_CMDend(17, 1))	//-- Check end of CMD17//				goto RERDCMD;//			}//			else	// MULTI_READ//			{//				SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 18);    // sht_resp, wait_resp, dat, start, CMD18//				if(!Chk_CMDend(18, 1))	//-- Check end of CMD18//					goto RERDCMD;//			}////			SDICSTA=0xa00;	// Clear cmd_end(with rsp)//			while(!TR_end);//			////Uart_Printf("SDIFSTA=0x%xn",SDIFSTA);//			rINTMSK |= (BIT_DMA0);//			TR_end=0;//			rDMASKTRIG0=(1<<2);	//DMA0 stop//			break;default:break;}//-- Check end of DATAif(!Chk_DATend()) //Uart_Printf("dat errorn");SDIDCON=SDIDCON&~(7<<12);SDIFSTA=SDIFSTA&0x200;	//Clear Rx FIFO Last data Ready, YH 040221SDIDSTA=0x10;	// Clear data Tx/Rx end detectif(block>1){RERCMD12:    //--Stop cmd(CMD12)SDICARG=0x0;	    //CMD12(stuff bit)SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 12);//sht_resp, wait_resp, start, CMD12//-- Check end of CMD12if(!Chk_CMDend(12, 1)) goto RERCMD12;SDICSTA=0xa00;	// Clear cmd_end(with rsp)}}void Wt_Block(void){U32 mode;int status;wt_cnt=0;    //Uart_Printf("Block write test[ Polling write ]n");mode = 0 ;SDIFSTA=SDIFSTA|(1<<16);	//YH 040223 FIFO resetif(mode!=2)SDIDCON=(2<<22)|(1<<20)|(1<<17)|(Wide<<16)|(1<<14)|(3<<12)|(block<<0);	//YH 040220SDICARG=0x0;	    // CMD24/25(addr)REWTCMD:switch(mode){case POL:if(block<2)	// SINGLE_WRITE{SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 24);	//sht_resp, wait_resp, dat, start, CMD24if(!Chk_CMDend(24, 1))	//-- Check end of CMD24goto REWTCMD;}else	// MULTI_WRITE{SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 25);	//sht_resp, wait_resp, dat, start, CMD25if(!Chk_CMDend(25, 1))	//-- Check end of CMD25goto REWTCMD;		}SDICSTA=0xa00;	// Clear cmd_end(with rsp)while(wt_cnt<128*block){status=SDIFSTA;if((status&0x2000)==0x2000) {SDIDAT=*Tx_buffer++;wt_cnt++;////Uart_Printf("Block No.=%d, wt_cnt=%dn",block,wt_cnt);}}break;//		case INT://			pISR_SDI=(unsigned)Wt_Int;//			rINTMSK = ~(BIT_SDI);////			rSDIIMSK=0x10;  // Tx FIFO half int.////			if(block<2)	    // SINGLE_WRITE//			{//				SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 24);    //sht_resp, wait_resp, dat, start, CMD24//				if(!Chk_CMDend(24, 1))	//-- Check end of CMD24//				goto REWTCMD;//			}//			else	    // MULTI_WRITE//			{//				SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 25);    //sht_resp, wait_resp, dat, start, CMD25//				if(!Chk_CMDend(25, 1))	//-- Check end of CMD25//					goto REWTCMD;//			}////			SDICSTA=0xa00;	// Clear cmd_end(with rsp)////			while(!TR_end);//			//while(wt_cnt<128);////			rINTMSK |= (BIT_SDI);//			TR_end=0;//			rSDIIMSK=0;	// All mask//			break;////		case DMA://			pISR_DMA0=(unsigned)DMA_end;//			rINTMSK = ~(BIT_DMA0);//			SDIDCON=SDIDCON|(1<<24); //YH 040227, Burst4 Enable////			rDISRC0=(int)(Tx_buffer);	// Tx_buffer//			rDISRCC0=(0<<1)+(0<<0);	// AHB, inc//			rDIDST0=(U32)(SDIDAT);	// SDIDAT//			rDIDSTC0=(1<<1)+(1<<0);	// APB, fix//			rDCON0=(1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(2<<24)+(1<<23)+(1<<22)+(2<<20)+128*block;//			//handshake, sync PCLK, TC int, single tx, single service, SDI, H/W request,//			//auto-reload off, word, 128blk*num//			rDMASKTRIG0=(0<<2)+(1<<1)+0;    //no-stop, DMA0 channel on, no-sw trigger////			SDIDCON=(2<<22)|(1<<20)|(1<<17)|(Wide<<16)|(1<<15)|(1<<14)|(3<<12)|(block<<0);	//YH 040220////			// Word Tx, Tx after rsp, blk, 4bit bus, dma enable, Tx start, blk num//			if(block<2)	    // SINGLE_WRITE//			{//				SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 24);    //sht_resp, wait_resp, dat, start, CMD24//				if(!Chk_CMDend(24, 1))	//-- Check end of CMD24//				goto REWTCMD;//			}//			else	    // MULTI_WRITE//			{//				SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 25);    //sht_resp, wait_resp, dat, start, CMD25//				if(!Chk_CMDend(25, 1))	//-- Check end of CMD25//					goto REWTCMD;//			}////			SDICSTA=0xa00;	// Clear cmd_end(with rsp)////			while(!TR_end);////			rINTMSK |= (BIT_DMA0);//			TR_end=0;//			rDMASKTRIG0=(1<<2);	//DMA0 stop////			break;default:break;}//-- Check end of DATAif(!Chk_DATend()) //Uart_Printf("dat errorn");SDIDCON=SDIDCON&~(7<<12);		//YH 040220, Clear Data Transfer mode => no operation, Cleata Data Transfer startSDIDSTA=0x10;	// Clear data Tx/Rx endif(block>1){//--Stop cmd(CMD12)REWCMD12:    SDIDCON=(1<<18)|(1<<17)|(0<<16)|(1<<14)|(1<<12)|(block<<0); 	//YH  040220SDICARG=0x0;	    //CMD12(stuff bit)SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 12);    //sht_resp, wait_resp, start, CMD12//-- Check end of CMD12if(!Chk_CMDend(12, 1)) goto REWCMD12;SDICSTA=0xa00;	// Clear cmd_end(with rsp)//-- Check end of DATA(with busy state)if(!Chk_BUSYend()) //Uart_Printf("errorn");SDIDSTA=0x08;	//! Should be cleared by writing 1.}}void  Delay(volatile unsigned long dly){for(; dly > 0; dly--);}int Chk_CMDend(int cmd, int be_resp)//0: Timeout{int finish0;if(!be_resp)    // No response{finish0=SDICSTA;while((finish0&0x800)!=0x800)	// Check cmd endfinish0=SDICSTA;SDICSTA=finish0;// Clear cmd end statereturn 1;}else	// With response{finish0=SDICSTA;while( !( ((finish0&0x200)==0x200) | ((finish0&0x400)==0x400) ))    // Check cmd/rsp endfinish0=SDICSTA;if(cmd==1 | cmd==41)	// CRC no check, CMD9 is a long Resp. command.{if( (finish0&0xf00) != 0xa00 )  // Check error{SDICSTA=finish0;   // Clear error stateif(((finish0&0x400)==0x400))return 0;	// Timeout error}SDICSTA=finish0;	// Clear cmd & rsp end state}else	// CRC check{if( (finish0&0x1f00) != 0xa00 )	// Check error{//Uart_Printf("CMD%d:SDICSTA=0x%x, SDIRSP0=0x%xn",cmd, SDICSTA, SDIRSP0);SDICSTA=finish0;   // Clear error stateif(((finish0&0x400)==0x400))return 0;	// Timeout error}SDICSTA=finish0;}return 1;}}int Chk_DATend(void){int finish;finish=SDIDSTA;while( !( ((finish&0x10)==0x10) | ((finish&0x20)==0x20) ))	// Chek timeout or data endfinish=SDIDSTA;if( (finish&0xfc) != 0x10 ){//Uart_Printf("DATA:finish=0x%xn", finish);SDIDSTA=0xec;  // Clear error statereturn 0;}return 1;}int Chk_BUSYend(void){int finish;finish=SDIDSTA;while( !( ((finish&0x08)==0x08) | ((finish&0x20)==0x20) ))finish=SDIDSTA;if( (finish&0xfc) != 0x08 ){//Uart_Printf("DATA:finish=0x%xn", finish);SDIDSTA=0xf4;  //clear error statereturn 0;}return 1;}void CMD0(void){//-- Make card idle state SDICARG=0x0;	    // CMD0(stuff bit)SDICCON=(1<<8)|(MAGIC_NUMBER | 0);   // No_resp, start, CMD0//-- Check end of CMD0Chk_CMDend(0, 0);SDICSTA=0x800;	    // Clear cmd_end(no rsp)}int Chk_SD_OCR(void){int i;//-- Negotiate operating condition for SD, it makes card ready statefor(i=0;i<50;i++)	//If this time is short, init. can be fail.{CMD55();    // Make ACMDSDICARG=0xff8000;	//ACMD41(SD OCR:2.7V~3.6V)SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 41);//sht_resp, wait_resp, start, ACMD41//-- Check end of ACMD41if( Chk_CMDend(41, 1) & SDIRSP0==0x80ff8000 ){SDICSTA=0xa00;	// Clear cmd_end(with rsp)return 1;	// Success	    }Delay(20000); // Wait Card power up status 1Sec//Delay(200); // Wait Card power up status}////Uart_Printf("SDIRSP0=0x%xn",SDIRSP0);SDICSTA=0xa00;	// Clear cmd_end(with rsp)return 0;		// Fail}int CMD55(void){//--Make ACMDSDICARG=RCA<<16;			//CMD7(RCA,stuff bit)SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 55);	//sht_resp, wait_resp, start, CMD55//-- Check end of CMD55if(!Chk_CMDend(55, 1)) return 0;SDICSTA=0xa00;	// Clear cmd_end(with rsp)return 1;}int CMD13(void)//SEND_STATUS{int response0;SDICARG=RCA<<16;			// CMD13(RCA,stuff bit)SDICCON=(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 13);	// sht_resp, wait_resp, start, CMD13//-- Check end of CMD13if(!Chk_CMDend(13, 1)) return 0;////Uart_Printf("SDIRSP0=0x%xn", SDIRSP0);if(SDIRSP0&0x100)////Uart_Printf("Ready for Datan");//else ////Uart_Printf("Not Readyn");response0=SDIRSP0;response0 &= 0x3c00;response0 = response0 >> 9;////Uart_Printf("Current Status=%dn", response0);if(response0==6)Test_SDI();SDICSTA=0xa00;	// Clear cmd_end(with rsp)return 1;}int CMD9(void)//SEND_CSD{SDICARG=RCA<<16;				// CMD9(RCA,stuff bit)SDICCON=(0x1<<10)|(0x1<<9)|(0x1<<8)|(MAGIC_NUMBER | 9);	// long_resp, wait_resp, start, CMD9//Uart_Printf("nCSD register :n");//-- Check end of CMD9if(!Chk_CMDend(9, 1)) return 0;//Uart_Printf("SDIRSP0=0x%xnSDIRSP1=0x%xnSDIRSP2=0x%xnSDIRSP3=0x%xn", SDIRSP0,rSDIRSP1,rSDIRSP2,rSDIRSP3);return 1;}void Set_4bit_bus(void){Wide=1;SetBus();////Uart_Printf("n4bit busn");}void SetBus(void){do{CMD55(); // Make ACMD//-- CMD6 implementSDICARG = Wide << 1; //Wide 0: 1bit, 1: 4bitSDICCON = (0x1 << 9) | (0x1 << 8) | (MAGIC_NUMBER | 6); //sht_resp, wait_resp, start, CMD55if (!Chk_CMDend(6, 1)) // ACMD6continue;SDICSTA = 0xa00; // Clear cmd_end(with rsp)} while (0);}void Set_Prt(void){//-- Set protection addr.0 ~ 262144(32*16*512) //Uart_Printf("[Set protection(addr.0 ~ 262144) test]n");do{//--Make ACMDSDICARG = 0; // CMD28(addr)SDICCON = (0x1 << 9) | (0x1 << 8) | (MAGIC_NUMBER | 28); //sht_resp, wait_resp, start, CMD28//-- Check end of CMD28if (!Chk_CMDend(28, 1))continue;SDICSTA = 0xa00; // Clear cmd_end(with rsp)} while (0);}void Clr_Prt(void){//-- Clear protection addr.0 ~ 262144(32*16*512) ////Uart_Printf("[Clear protection(addr.0 ~ 262144) test]n");do{//--Make ACMDSDICARG = 0; // CMD29(addr)SDICCON = (0x1 << 9) | (0x1 << 8) | (MAGIC_NUMBER | 29); //sht_resp, wait_resp, start, CMD29//-- Check end of CMD29if (!Chk_CMDend(29, 1))continue;SDICSTA = 0xa00; // Clear cmd_end(with rsp)} while (0);}

總結：調試和運行還是用很在的差別的，eclipse調試沒有問題的，運行就會有點小問題，eclipse可以確定程序的框架，運行可以細節(jié)地顯示問題，那個延時Delay(200)沒有問題，到運行時候調整為Delay(2000)才可以正常。jlink的速率什么的都會影響，并不能代碼整個實時的運行效果。在線調試和下載運行調試相接合才是王道。