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          EEPW首頁(yè) > 嵌入式系統(tǒng) > 設(shè)計(jì)應(yīng)用 > 關(guān)于啟動(dòng)代碼2440init.s(三)

          關(guān)于啟動(dòng)代碼2440init.s(三)

          作者: 時(shí)間:2016-11-21 來(lái)源:網(wǎng)絡(luò) 收藏
          ;=======================================================================
          ; 哈哈,下面又有看頭了,這個(gè)初始化程序好像被名曰hzh的高手改過(guò)
          ; 能在NOR NAND 還有內(nèi)存中運(yùn)行,當(dāng)然了,在內(nèi)存中運(yùn)行最簡(jiǎn)單了.
          ; 在NOR NAND中運(yùn)行的話都要先把自己拷到內(nèi)存中.
          ; 此外,還記得上面提到的|Image$$RO$$Base|,|Image$$RO$$Limit|...嗎?
          ; 這就是拷貝的依據(jù)了!!!
          ;=========================================================================

          ;BWSCON的[2:1]反映了外部引腳OM[1:0]:若OM[1:0] != 00, 從NOR FLash啟動(dòng)或直接在內(nèi)存運(yùn)行;若OM[1:0]==00,則為Nand Flash Mode
          ldr r0, =BWSCON
          ldr r0, [r0]
          ands r0, r0, #6 ; #6 == 0110 --> BWSCON[2:1]
          bne copy_proc_beg ;OM[1:0] != 00,NOR FLash boot,不讀取NAND FLASH

          adr r0, ResetEntry ;否則,OM[1:0] == 0, 為從NAND FLash啟動(dòng)
          cmp r0, #0 ;再比較入口是否為0地址處
          ;如果是0才是真正從NAND 啟動(dòng),因?yàn)槠?k被復(fù)制到0地址開(kāi)始的stepingstone 內(nèi)部sram中
          ; 注意adr得到的是 相對(duì) 地址,非絕對(duì)地址 == if use Multi-ice,
          bne copy_proc_beg ;如果!=0,說(shuō)明在using ice, 這種情況也不讀取NAND FLASH. dont read nand flash for boot
          ;nop


          ;==============這一段代碼完成從NAND Flash讀代碼到RAM=====================
          nand_boot_beg ;
          mov r5, #NFCONF ;首先設(shè)定NAND的一些控制寄存器
          ;set timing value
          ldr r0, =(7<<12)|(7<<8)|(7<<4)
          str r0, [r5]
          ;enable control
          ldr r0, =(0<<13)|(0<<12)|(0<<10)|(0<<9)|(0<<8)|(1<<6)|(1<<5)|(1<<4)|(1<<1)|(1<<0)
          str r0, [r5, #4]
          bl ReadNandID ;按著讀取NAND的ID號(hào),結(jié)果保存在r5里
          mov r6, #0 ;r6設(shè)初值0.
          ldr r0, =0xec73 ;期望的NAND ID號(hào)
          cmp r5, r0 ;這里進(jìn)行比較
          beq ? ;相等的話就跳到下一個(gè)1標(biāo)號(hào)處
          ldr r0, =0xec75 ;這是另一個(gè)期望值
          cmp r5, r0
          beq ? ;相等的話就跳到下一個(gè)1標(biāo)號(hào)處
          mov r6, #1 ;不相等,設(shè)置r6=1.
          1
          bl ReadNandStatus ;讀取NAND狀態(tài),結(jié)果放在r1里
          mov r8, #0 ; r8設(shè)初值0,意義為頁(yè)號(hào)
          ldr r9, =ResetEntry ; r9設(shè)初值為初始化程序入口地址
          ; 注意,在這里使用的是ldr偽指令,而不是上面用的adr偽指令,它加載的是ResetEntry
          ; 的絕對(duì)地址,也就是我們期望的RAM中的地址,在這里,它和|Image$$RO$$Base|一樣
          ; 也就是說(shuō),我如我們編譯程序時(shí)RO base指定的地址在RAM里,而把生成的文件拷到
          ; NAND里運(yùn)行,由ldr加載的r9的值還是定位在內(nèi)存. ???

          2
          ands r0, r8, #0x1f ;凡r8為0x1f(32)的整數(shù)倍-1,eq有效,ne無(wú)效
          bne ? ;這句的意思是對(duì)每個(gè)塊(32頁(yè))進(jìn)行檢錯(cuò) -- 在每個(gè)塊的開(kāi)始頁(yè)進(jìn)行
          mov r0, r8 ;r8->r0
          bl CheckBadBlk ;檢查NAND的壞區(qū)
          cmp r0, #0 ;比較r0和0
          addne r8, r8, #32 ;存在壞塊的話就跳過(guò)這個(gè)壞塊: + 32得到下一塊. 故: r8 = blockpage addr,因?yàn)樽x寫是按頁(yè)進(jìn)行的(每頁(yè)512Byte)
          bne ? ;然后跳到4進(jìn)行循環(huán)條件判斷。沒(méi)有的話就跳到標(biāo)號(hào)3處copy當(dāng)前頁(yè)
          3
          mov r0, r8 ;當(dāng)前頁(yè)號(hào)->r0
          mov r1, r9 ;當(dāng)前目標(biāo)地址->r1
          bl ReadNandPage ;讀取該頁(yè)的NAND數(shù)據(jù)到RAM
          add r9, r9, #512 ;每一頁(yè)的大小是512Bytes
          add r8, r8, #1 ;r8指向下一頁(yè)
          4
          cmp r8, #256 ;比較是否讀完256頁(yè)即128KBytes
          ;注意:這說(shuō)明此程序默認(rèn)拷貝128KByte的代碼(by Tinko)

          bcc ? ;如果r8小于256(沒(méi)讀完),就返回前面的標(biāo)號(hào)2處
          ; now copy completed
          mov r5, #NFCONF ;Disable NandFlash
          ldr r0, [r5, #4]
          bic r0, r0, #1
          str r0, [r5, #4]

          ldr pc, =copy_proc_beg ;調(diào)用copy_proc_beg
          ;個(gè)人認(rèn)為應(yīng)該為InitRam ?????????????????????????????



          ;===========================================================
          copy_proc_beg
          adrl r0, ResetEntry ;ResetEntry值->r0
          ;這里應(yīng)該注意,使用的是adr,而不是ldr。使用ldr說(shuō)明ResetEntry是個(gè)絕對(duì)地址,這個(gè)地址是在程序鏈接的時(shí)候
          ;確定的。而使用adr則說(shuō)明ResetEntry的地址和當(dāng)前代碼的執(zhí)行位置有關(guān),它是一個(gè)相對(duì)的地址。比如這段代碼
          ;在stepingstone里面執(zhí)行,那么ResetEntry的地址就是零。如果在RAM里執(zhí)行,那么ResetEntry就應(yīng)是RAM的一個(gè)
          ;地址,應(yīng)該等于RO base。
          ldr r2, BaseOfROM ;BaseOfROM值(后面有定義)->r2
          cmp r0, r2 ;比較 ResetEntry 和 BaseOfROM
          ldreq r0, TopOfROM ;如果相等的話(在內(nèi)存運(yùn)行 --- ice -- 無(wú)需復(fù)制code區(qū)中的ro段,但需要復(fù)制code區(qū)中的rw段),TopOfROM->r0
          beq InitRam ;同時(shí)跳到InitRam
          ;否則,下面開(kāi)始復(fù)制code的RO段
          ;=========================================================
          ;下面這個(gè)是針對(duì)代碼在NOR FLASH時(shí)的拷貝方法
          ;功能為把從ResetEntry起,TopOfROM-BaseOfROM大小的數(shù)據(jù)拷到BaseOfROM
          ;TopOfROM和BaseOfROM為|Image$$RO$$Limit|和|Image$$RO$$Base|
          ;|Image$$RO$$Limit|和|Image$$RO$$Base|由連接器生成
          ;為生成的代碼的代碼段運(yùn)行時(shí)的起啟和終止地址
          ;BaseOfBSS和BaseOfZero為|Image$$RW$$Base|和|Image$$ZI$$Base|
          ;|Image$$RW$$Base|和|Image$$ZI$$Base|也是由連接器生成
          ;兩者之間就是初始化數(shù)據(jù)的存放地
          ; --在加載階段,不存在ZI區(qū)域--
          ;=======================================================
          ldr r3, TopOfROM
          0
          ldmia r0!, {r4-r7} ;開(kāi)始時(shí),r0 = ResetEntry --- source
          stmia r2!, {r4-r7} ;開(kāi)始時(shí),r2 = BaseOfROM --- destination
          cmp r2, r3 ;終止條件:復(fù)制了TopOfROM-BaseOfROM大小
          bcc ?

          ;---------------------------------------------------------------
          ; 下面2行,根據(jù)理解,由tinko添加
          ; 猜測(cè)上面的代碼不應(yīng)該用" ! ",以至于地址被修改。這里重新賦值
          ;---------------------------------------------------------------
          adrl r0, ResetEntry ;dont use adr, cause out of range error occures
          ldr r2, BaseOfROM
          ;旨在計(jì)算出正確的RW區(qū)起始位置
          ; 下面2行目的是為了計(jì)算正確的r0(必須使之指向code區(qū)中的rw域開(kāi)始處)
          sub r2, r2, r3 ;r2=BaseOfROM-TopOfROM=(-)代碼長(zhǎng)度
          sub r0, r0, r2 ;r0=ResetEntry-(-)代碼長(zhǎng)度=ResetEntry+代碼長(zhǎng)度

          InitRam
          ;復(fù)制代碼加載位置中的RM區(qū)到|Image$$RW$$Base|
          ldr r2, BaseOfBSS ;BaseOfBSS->r2 , BaseOfBSS = |Image$$RW$$Base|
          ldr r3, BaseOfZero ;BaseOfZero->r3 , BaseOfZero = |Image$$ZI$$Base|
          0
          cmp r2, r3 ;比較BaseOfBSS和BaseOfZero
          ldrcc r1, [r0], #4 ;當(dāng)代碼在內(nèi)存中運(yùn)行時(shí),r0(初始值) = TopOfROM.這之后的BaseOfZero-BaseOfBSS仍屬于code,需拷貝到BaseOfBSS
          strcc r1, [r2], #4
          bcc ?

          ;用0初始化ZI區(qū)
          mov r0, #0
          ldr r3, EndOfBSS ;EndOfBSS = |Image$$ZI$$Limit|
          1
          cmp r2, r3
          strcc r0, [r2], #4
          bcc ?

          ;要是r21 ; means Fclk:Hclk is not 1:1.
          ; bl MMU_SetAsyncBusMode
          ; |
          ; bl MMU_SetFastBusMode ; default value.
          ; ]
          ;bl Led_Test
          ;===========================================================

          ; 進(jìn)入C語(yǔ)言前的最后一步了,就是把我們用說(shuō)查二級(jí)向量表
          ; 的中斷例程安裝到一級(jí)向量表(異常向量表)里.
          ;//5.設(shè)置缺省中斷處理函數(shù)
          ; Setup IRQ handler
          ldr r0,=HandleIRQ ;This routine is needed
          ldr r1,=IsrIRQ ;if there isnt subs pc,lr,#4 at 0x18, 0x1c
          str r1,[r0]
          ;//initialize the IRQ 將普通中斷判斷程序的入口地址給HandleIRQ

          ;//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
          ;注意,以下這段可能不需要!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
          ;//6.將數(shù)據(jù)段拷貝到ram中 將零初始化數(shù)據(jù)段清零跳入C語(yǔ)言的main函數(shù)執(zhí)行到這步結(jié)束bootloader初步引導(dǎo)結(jié)束
          ;If main() is used, the variable initialization will be done in __main().
          [ {FALSE} ;by tinko -- 最外面的條件由tinko添加,實(shí)際上不再執(zhí)行這段
          [ :LNOT:USE_MAIN ;initialized {FALSE}
          ;Copy and paste RW data/zero initialized data

          LDR r0, =|Image$$RO$$Limit| ; Get pointer to ROM data
          LDR r1, =|Image$$RW$$Base| ; and RAM copy
          LDR r3, =|Image$$ZI$$Base|

          ;Zero init base => top of initialised data
          CMP r0, r1 ; Check that they are different just for debug??????????????????????????
          BEQ ?
          1
          CMP r1, r3 ; Copy init data
          LDRCC r2, [r0], #4 ;--> LDRCC r2, [r0] + ADD r0, r0, #4
          STRCC r2, [r1], #4 ;--> STRCC r2, [r1] + ADD r1, r1, #4
          BCC ?
          2
          LDR r1, =|Image$$ZI$$Limit| ; Top of zero init segment
          MOV r2, #0
          3
          CMP r3, r1 ; Zero init
          STRCC r2, [r3], #4
          BCC ?
          ]
          ]
          ;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

          ;***************************************
          ;by tinko
          [ {TRUE} ;得有些表示了,該點(diǎn)點(diǎn)LED燈了
          ;rGPFDAT = (rGPFDAT & ~(0xf<<4)) | ((~data & 0xf)<<4);
          ; Led_Display
          ldr r0,=GPFCON
          ldr r1,=0x5500
          str r1,[r0]
          ldr r0,=GPFDAT
          ldr r1,=0xe0
          str r1,[r0]

          ldr r2, =0xffffffff;
          1
          sub r2,r2,#1
          bne ?
          ldr r0,=GPFDAT
          ldr r1,=0xe0
          ;b . ;die here
          ]
          ;*****************************************
          ;*****************************************************************************
          ;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
          ; 媽呀,終說(shuō)見(jiàn)到艷陽(yáng)天了!!!!!!!!!!
          ; 跳到C語(yǔ)言的main函數(shù)處了.
          ;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
          ;*****************************************************************************

          [ :LNOT:THUMBCODE ;if thumbcode={false} bl main L代表logic變量
          bl Main ;Dont use main() because ......
          b . ;注意小圓點(diǎn)
          ]

          ;//if thumbcod={ture}
          [ THUMBCODE ;for start-up code for Thumb mode
          orr lr,pc,#1
          bx lr
          CODE16
          bl Main ;Dont use main() because ......
          b . ;注意小圓點(diǎn)
          CODE32
          ]

          ;function initializing stacks
          InitStacks
          ;Dont use DRAM,such as stmfd,ldmfd......
          ;SVCstack is initialized before
          ;Under toolkit ver 2.5, msr cpsr,r1 can be used instead of msr cpsr_cxsf,r1

          mrs r0,cpsr
          bic r0,r0,#MODEMASK
          orr r1,r0,#UNDEFMODE|NOINT
          msr cpsr_cxsf,r1 ;UndefMode
          ldr sp,=UndefStack ; UndefStack=0x33FF_5C00
          orr r1,r0,#ABORTMODE|NOINT
          msr cpsr_cxsf,r1 ;AbortMode
          ldr sp,=AbortStack ; AbortStack=0x33FF_6000
          orr r1,r0,#IRQMODE|NOINT
          msr cpsr_cxsf,r1 ;IRQMode
          ldr sp,=IRQStack ; IRQStack=0x33FF_7000
          orr r1,r0,#FIQMODE|NOINT
          msr cpsr_cxsf,r1 ;FIQMode
          ldr sp,=FIQStack ; FIQStack=0x33FF_8000
          bic r0,r0,#MODEMASK|NOINT
          orr r1,r0,#SVCMODE
          msr cpsr_cxsf,r1 ;SVCMode
          ldr sp,=SVCStack ; SVCStack=0x33FF_5800
          ;USER mode has not be initialized.
          ;//為什么不用初始化user的stacks,系統(tǒng)剛啟動(dòng)的時(shí)候運(yùn)行在哪個(gè)模式下?
          mov pc,lr
          ;The LR register wont be valid if the current mode is not SVC mode.?
          ;//系統(tǒng)一開(kāi)始運(yùn)行就是SVCmode?
          ;===========================================================
          ReadNandID
          mov r7,#NFCONF
          ldr r0,[r7,#4] ;NFChipEn();
          bic r0,r0,#2
          str r0,[r7,#4]
          mov r0,#0x90 ;WrNFCmd(RdIDCMD);
          strb r0,[r7,#8]
          mov r4,#0 ;WrNFAddr(0);
          strb r4,[r7,#0xc]
          1 ;while(NFIsBusy());
          ldr r0,[r7,#0x20]
          tst r0,#1
          beq ?
          ldrb r0,[r7,#0x10] ;id = RdNFDat()<<8;
          mov r0,r0,lsl #8
          ldrb r1,[r7,#0x10] ;id |= RdNFDat();
          orr r5,r1,r0
          ldr r0,[r7,#4] ;NFChipDs();
          orr r0,r0,#2
          str r0,[r7,#4]
          mov pc,lr
          ReadNandStatus
          mov r7,#NFCONF
          ldr r0,[r7,#4] ;NFChipEn();
          bic r0,r0,#2
          str r0,[r7,#4]
          mov r0,#0x70 ;WrNFCmd(QUERYCMD);
          strb r0,[r7,#8]
          ldrb r1,[r7,#0x10] ;r1 = RdNFDat();
          ldr r0,[r7,#4] ;NFChipDs();
          orr r0,r0,#2
          str r0,[r7,#4]
          mov pc,lr
          WaitNandBusy
          mov r0,#0x70 ;WrNFCmd(QUERYCMD);
          mov r1,#NFCONF
          strb r0,[r1,#8]
          1 ;while(!(RdNFDat()&0x40));
          ldrb r0,[r1,#0x10]
          tst r0,#0x40
          beq ?
          mov r0,#0 ;WrNFCmd(READCMD0);
          strb r0,[r1,#8]
          mov pc,lr
          CheckBadBlk
          mov r7, lr
          mov r5, #NFCONF
          bic r0,r0,#0x1f ;addr &= ~0x1f;
          ldr r1,[r5,#4] ;NFChipEn()
          bic r1,r1,#2
          str r1,[r5,#4]
          mov r1,#0x50 ;WrNFCmd(READCMD2)
          strb r1,[r5,#8]
          mov r1, #5;6 ;6->5
          strb r1,[r5,#0xc] ;WrNFAddr(5);(6) 6->5
          strb r0,[r5,#0xc] ;WrNFAddr(addr)
          mov r1,r0,lsr #8 ;WrNFAddr(addr>>8)
          strb r1,[r5,#0xc]
          cmp r6,#0 ;if(NandAddr)
          movne r0,r0,lsr #16 ;WrNFAddr(addr>>16)
          strneb r0,[r5,#0xc]
          ; bl WaitNandBusy ;WaitNFBusy()
          ;do not use WaitNandBusy, after WaitNandBusy will read part A!
          mov r0, #100
          1
          subs r0, r0, #1
          bne ?
          2
          ldr r0, [r5, #0x20]
          tst r0, #1
          beq ?
          ldrb r0, [r5,#0x10] ;RdNFDat()
          sub r0, r0, #0xff
          mov r1,#0 ;WrNFCmd(READCMD0)
          strb r1,[r5,#8]
          ldr r1,[r5,#4] ;NFChipDs()
          orr r1,r1,#2
          str r1,[r5,#4]
          mov pc, r7
          ReadNandPage
          mov r7,lr
          mov r4,r1
          mov r5,#NFCONF
          ldr r1,[r5,#4] ;NFChipEn()
          bic r1,r1,#2
          str r1,[r5,#4]
          mov r1,#0 ;WrNFCmd(READCMD0)
          strb r1,[r5,#8]
          strb r1,[r5,#0xc] ;WrNFAddr(0)
          strb r0,[r5,#0xc] ;WrNFAddr(addr)
          mov r1,r0,lsr #8 ;WrNFAddr(addr>>8)
          strb r1,[r5,#0xc]
          cmp r6,#0 ;if(NandAddr)
          movne r0,r0,lsr #16 ;WrNFAddr(addr>>16)
          strneb r0,[r5,#0xc]
          ldr r0,[r5,#4] ;InitEcc()
          orr r0,r0,#0x10
          str r0,[r5,#4]
          bl WaitNandBusy ;WaitNFBusy()
          mov r0,#0 ;for(i=0; i<512; i++)
          1
          ldrb r1,[r5,#0x10] ;buf[i] = RdNFDat()
          strb r1,[r4,r0]
          add r0,r0,#1
          bic r0,r0,#0x10000
          cmp r0,#0x200
          bcc ?
          ldr r0,[r5,#4] ;NFChipDs()
          orr r0,r0,#2
          str r0,[r5,#4]

          mov pc,r7
          ;--------------------LED test
          EXPORT Led_Test
          Led_Test
          mov r0, #0x56000000
          mov r1, #0x5500
          str r1, [r0, #0x50]
          0
          mov r1, #0x50
          str r1, [r0, #0x54]
          mov r2, #0x100000
          1
          subs r2, r2, #1
          bne ?
          mov r1, #0xa0
          str r1, [r0, #0x54]
          mov r2, #0x100000
          2
          subs r2, r2, #1
          bne ?
          b ?
          mov pc, lr
          ;===========================================================
          ;=====================================================================
          ; Clock division test
          ; Assemble code, because VSYNC time is very short
          ;=====================================================================
          EXPORT CLKDIV124
          EXPORT CLKDIV144

          CLKDIV124

          ldr r0, = CLKDIVN
          ldr r1, = 0x3 ; 0x3 = 1:2:4
          str r1, [r0]
          ; wait until clock is stable
          nop
          nop
          nop
          nop
          nop
          ldr r0, = REFRESH
          ldr r1, [r0]
          bic r1, r1, #0xff
          bic r1, r1, #(0x7<<8)
          orr r1, r1, #0x470 ; REFCNT135
          str r1, [r0]
          nop
          nop
          nop
          nop
          nop
          mov pc, lr
          CLKDIV144
          ldr r0, = CLKDIVN
          ldr r1, = 0x4 ; 0x4 = 1:4:4
          str r1, [r0]
          ; wait until clock is stable
          nop
          nop
          nop
          nop
          nop
          ldr r0, = REFRESH
          ldr r1, [r0]
          bic r1, r1, #0xff
          bic r1, r1, #(0x7<<8)
          orr r1, r1, #0x630 ; REFCNT675 - 1520
          str r1, [r0]
          nop
          nop
          nop
          nop
          nop
          mov pc, lr


          ;存儲(chǔ)器控制寄存器的定義區(qū)
          LTORG
          SMRDATA DATA
          ; Memory configuration should be optimized for best performance
          ; The following parameter is not optimized.
          ; Memory access cycle parameter strategy
          ; 1) The memory settings is safe parameters even at HCLK=75Mhz.
          ; 2) SDRAM refresh period is for HCLK<=75Mhz.
          DCD (0+(B1_BWSCON<<4)+(B2_BWSCON<<8)+ (B3_BWSCON<<12)+(B4_BWSCON<<16)+(B5_BWSCON<<20)+ (B6_BWSCON<<24)+(B7_BWSCON<<28)) ;各bank的bus width; 沒(méi)有B0,因?yàn)橛?OM[1:0]pins 確定
          DCD ((B0_Tacs<<13)+(B0_Tcos<<11)+(B0_Tacc<<8)+(B0_Tcoh<<6)+(B0_Tah<<4)+(B0_Tacp<<2)+(B0_PMC)) ;GCS0
          DCD ((B1_Tacs<<13)+(B1_Tcos<<11)+(B1_Tacc<<8)+(B1_Tcoh<<6)+(B1_Tah<<4)+(B1_Tacp<<2)+(B1_PMC)) ;GCS1
          DCD ((B2_Tacs<<13)+(B2_Tcos<<11)+(B2_Tacc<<8)+(B2_Tcoh<<6)+(B2_Tah<<4)+(B2_Tacp<<2)+(B2_PMC)) ;GCS2
          DCD ((B3_Tacs<<13)+(B3_Tcos<<11)+(B3_Tacc<<8)+(B3_Tcoh<<6)+(B3_Tah<<4)+(B3_Tacp<<2)+(B3_PMC)) ;GCS3
          DCD ((B4_Tacs<<13)+(B4_Tcos<<11)+(B4_Tacc<<8)+(B4_Tcoh<<6)+(B4_Tah<<4)+(B4_Tacp<<2)+(B4_PMC)) ;GCS4
          DCD ((B5_Tacs<<13)+(B5_Tcos<<11)+(B5_Tacc<<8)+(B5_Tcoh<<6)+(B5_Tah<<4)+(B5_Tacp<<2)+(B5_PMC)) ;GCS5
          DCD ((B6_MT<<15)+(B6_Trcd<<2)+(B6_SCAN)) ;GCS6 B6_MT定義在memcfg.inc中,11-->SDRAM ; B6_SCAN - 非reset 默認(rèn)值
          DCD ((B7_MT<<15)+(B7_Trcd<<2)+(B7_SCAN)) ;GCS7
          DCD ((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT) ;Tchr- not used
          ;DCD 0x32 ;SCLK power saving mode, BANKSIZE 128M/128M
          DCD 0x31 ;SCLK power saving mode, BANKSIZE 64M/64M
          DCD 0x30 ;MRSR6 CL=3clk
          DCD 0x30 ;MRSR7 CL=3clk
          BaseOfROM DCD |Image$$RO$$Base|
          TopOfROM DCD |Image$$RO$$Limit|
          BaseOfBSS DCD |Image$$RW$$Base|
          BaseOfZero DCD |Image$$ZI$$Base|
          EndOfBSS DCD |Image$$ZI$$Limit|

          ALIGN
          AREA RamData, DATA, READWRITE
          ^ _ISR_STARTADDRESS ; _ISR_STARTADDRESS=0x33FF_FF00
          HandleReset # 4
          HandleUndef # 4
          HandleSWI # 4
          HandlePabort # 4
          HandleDabort # 4
          HandleReserved # 4
          HandleIRQ # 4
          HandleFIQ # 4
          ;Dont use the label IntVectorTable,
          ;The value of IntVectorTable is different with the address you think it may be.
          ;IntVectorTable
          ;@0x33FF_FF20
          HandleEINT0 # 4
          HandleEINT1 # 4
          HandleEINT2 # 4
          HandleEINT3 # 4
          HandleEINT4_7 # 4
          HandleEINT8_23 # 4
          HandleCAM # 4 ; Added for 2440.
          HandleBATFLT # 4
          HandleTICK # 4
          HandleWDT # 4
          HandleTIMER0 # 4
          HandleTIMER1 # 4
          HandleTIMER2 # 4
          HandleTIMER3 # 4
          HandleTIMER4 # 4
          HandleUART2 # 4
          ;@0x33FF_FF60
          HandleLCD # 4
          HandleDMA0 # 4
          HandleDMA1 # 4
          HandleDMA2 # 4
          HandleDMA3 # 4
          HandleMMC # 4
          HandleSPI0 # 4
          HandleUART1 # 4
          HandleNFCON # 4 ; Added for 2440.
          HandleUSBD # 4
          HandleUSBH # 4
          HandleIIC # 4
          HandleUART0 # 4
          HandleSPI1 # 4
          HandleRTC # 4
          HandleADC # 4
          ;@0x33FF_FFA0
          END
          ; HISTORY:
          ; 2002.02.25:kwtark: ver 0.0
          ; 2002.03.20:purnnamu: Add some functions for testing STOP,Sleep mode
          ; 2003.03.14:DonGo: Modified for 2440.
          ; 2009 06.24:Tinko Modified


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