?? cstartup_sam7.lst
字號:
60 while( !(AT91C_BASE_PMC->PMC_SR & AT91C_PMC_LOCK) );
\ ??AT91F_LowLevelInit_2:
\ 00000020 0168 LDR R1,[R0, #+0]
\ 00000022 4907 LSL R1,R1,#+0x1D
\ 00000024 FCD5 BPL ??AT91F_LowLevelInit_2
61 // Wait until the master clock is established for the case we already turn on the PLL
62 while( !(AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY) );
\ ??AT91F_LowLevelInit_3:
\ 00000026 0821 MOV R1,#+0x8
\ 00000028 0268 LDR R2,[R0, #+0]
\ 0000002A 0A42 TST R2,R1
\ 0000002C FBD0 BEQ ??AT91F_LowLevelInit_3
63
64 /////////////////////////////////////////////////////////////////////////////////////////////////////
65 // Init PMC Step 3.
66 // Selection of Master Clock MCK (equal to Processor Clock PCK) equal to PLL/2 = 48MHz
67 // The PMC_MCKR register must not be programmed in a single write operation (see. Product Errata Sheet)
68 /////////////////////////////////////////////////////////////////////////////////////////////////////
69 AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_PRES_CLK_2;
\ 0000002E 164A LDR R2,??AT91F_LowLevelInit_0+0x14 ;; 0xfffffc30
\ 00000030 0423 MOV R3,#+0x4
\ 00000032 1360 STR R3,[R2, #+0]
70 // Wait until the master clock is established
71 while( !(AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY) );
\ ??AT91F_LowLevelInit_4:
\ 00000034 0368 LDR R3,[R0, #+0]
\ 00000036 0B42 TST R3,R1
\ 00000038 FCD0 BEQ ??AT91F_LowLevelInit_4
72
73 AT91C_BASE_PMC->PMC_MCKR |= AT91C_PMC_CSS_PLL_CLK;
\ 0000003A 1368 LDR R3,[R2, #+0]
\ 0000003C 0324 MOV R4,#+0x3
\ 0000003E 1C43 ORR R4,R3
\ 00000040 1460 STR R4,[R2, #+0]
74 // Wait until the master clock is established
75 while( !(AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY) );
\ ??AT91F_LowLevelInit_5:
\ 00000042 0268 LDR R2,[R0, #+0]
\ 00000044 0A42 TST R2,R1
\ 00000046 FCD0 BEQ ??AT91F_LowLevelInit_5
76
77 /////////////////////////////////////////////////////////////////////////////////////////////////////
78 // Disable Watchdog (write once register)
79 /////////////////////////////////////////////////////////////////////////////////////////////////////
80 AT91C_BASE_WDTC->WDTC_WDMR = AT91C_WDTC_WDDIS;
\ 00000048 1048 LDR R0,??AT91F_LowLevelInit_0+0x18 ;; 0xfffffd44
\ 0000004A 0903 LSL R1,R1,#+0xC
\ 0000004C 0160 STR R1,[R0, #+0]
81
82 ////////////////////////////////////////////////////////////////////////////////////////////////////
83 // Init AIC: assign corresponding handler for each interrupt source
84 /////////////////////////////////////////////////////////////////////////////////////////////////////
85 AT91C_BASE_AIC->AIC_SVR[0] = (int) AT91F_Default_FIQ_handler ;
\ 0000004E 1048 LDR R0,??AT91F_LowLevelInit_0+0x1C ;; 0xfffff080
\ 00000050 1049 LDR R1,??AT91F_LowLevelInit_0+0x20 ;; AT91F_Default_FIQ_handler
\ 00000052 0160 STR R1,[R0, #+0]
86 for (i = 1; i < 31; i++) {
\ 00000054 0120 MOV R0,#+0x1
\ 00000056 0E4A LDR R2,??AT91F_LowLevelInit_0+0x1C ;; 0xfffff080
\ 00000058 0F4B LDR R3,??AT91F_LowLevelInit_0+0x24 ;; AT91F_Default_IRQ_handler
87 AT91C_BASE_AIC->AIC_SVR[i] = (int) AT91F_Default_IRQ_handler ;
\ ??AT91F_LowLevelInit_6:
\ 0000005A 8100 LSL R1,R0,#+0x2
\ 0000005C 5350 STR R3,[R2, R1]
88 }
\ 0000005E 401C ADD R0,R0,#+0x1
\ 00000060 0106 LSL R1,R0,#+0x18
\ 00000062 090E LSR R1,R1,#+0x18
\ 00000064 1F29 CMP R1,#+0x1F
\ 00000066 F8D3 BCC ??AT91F_LowLevelInit_6
89 AT91C_BASE_AIC->AIC_SPU = (unsigned int) AT91F_Spurious_handler;
\ 00000068 0C48 LDR R0,??AT91F_LowLevelInit_0+0x28 ;; 0xfffff134
\ 0000006A 0D49 LDR R1,??AT91F_LowLevelInit_0+0x2C ;; AT91F_Spurious_handler
\ 0000006C 0160 STR R1,[R0, #+0]
90 }
\ 0000006E 10BC POP {R4}
\ 00000070 01BC POP {R0}
\ 00000072 0047 BX R0 ;; return
\ ??AT91F_LowLevelInit_0:
\ 00000074 20FCFFFF DC32 0xfffffc20
\ 00000078 01400000 DC32 0x4001
\ 0000007C 68FCFFFF DC32 0xfffffc68
\ 00000080 2CFCFFFF DC32 0xfffffc2c
\ 00000084 0E3F4810 DC32 0x10483f0e
\ 00000088 30FCFFFF DC32 0xfffffc30
\ 0000008C 44FDFFFF DC32 0xfffffd44
\ 00000090 80F0FFFF DC32 0xfffff080
\ 00000094 ........ DC32 AT91F_Default_FIQ_handler
\ 00000098 ........ DC32 AT91F_Default_IRQ_handler
\ 0000009C 34F1FFFF DC32 0xfffff134
\ 000000A0 ........ DC32 AT91F_Spurious_handler
Maximum stack usage in bytes:
Function CSTACK
-------- ------
AT91F_LowLevelInit 8
Segment part sizes:
Function/Label Bytes
-------------- -----
AT91F_LowLevelInit 164
Others 8
172 bytes in segment CODE
164 bytes of CODE memory (+ 8 bytes shared)
Errors: none
Warnings: none
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