关于S3C2440中断的问题（附主要代码，帮忙看看，亲们）

蓝海 · 发表于 2012-4-24 00:10:52

这几天一直在调这个中断，不知怎么回事，只能定时器0 只能中断一次，之后就不再产生中断了，当然，得声明下，定时器0的配置是没有错的，现在不知道是不是启动代码修改的有误。大家帮我看看吧，我把启动代码，定时器0的中断函数，初始化函数贴出来，各位帮忙分析下

这是启动代码：个人感觉很可能是这里出现问题
; Standard definitions of Mode bits and Interrupt (I & F) flags in PSRs
Mode_USR EQU 0x10
Mode_FIQ EQU 0x11
Mode_IRQ EQU 0x12
Mode_SVC EQU 0x13
Mode_ABT EQU 0x17
Mode_UND EQU 0x1B
Mode_SYS EQU 0x1F
I_Bit EQU 0x80 ; when I bit is set, IRQ is disabled
F_Bit EQU 0x40 ; when F bit is set, FIQ is disabled

;----------------------- Stack and Heap Definitions ----------------------------
;// <h> Stack Configuration (Stack Sizes in Bytes)
;// <o0> Undefined Mode <0x0-0xFFFFFFFF:8>
;// <o1> Supervisor Mode <0x0-0xFFFFFFFF:8>
;// <o2> Abort Mode <0x0-0xFFFFFFFF:8>
;// <o3> Fast Interrupt Mode <0x0-0xFFFFFFFF:8>
;// <o4> Interrupt Mode <0x0-0xFFFFFFFF:8>
;// <o5> User/System Mode <0x0-0xFFFFFFFF:8>
;// </h>
UND_Stack_Size EQU 0x00000000
SVC_Stack_Size EQU 0x00000008
ABT_Stack_Size EQU 0x00000000
FIQ_Stack_Size EQU 0x00000000
IRQ_Stack_Size EQU 0x00000080
USR_Stack_Size EQU 0x00000400
ISR_Stack_Size EQU (UND_Stack_Size + SVC_Stack_Size + ABT_Stack_Size + \
 FIQ_Stack_Size + IRQ_Stack_Size)
 AREA STACK, NOINIT, READWRITE, ALIGN=3
Stack_Mem SPACE USR_Stack_Size
__initial_sp SPACE ISR_Stack_Size
Stack_Top

;// <h> Heap Configuration
;// <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF>
;// </h>
Heap_Size EQU 0x00000000
 AREA HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base
Heap_Mem SPACE Heap_Size
__heap_limit

;----------------------- Memory Definitions ------------------------------------
; Internal Memory Base Addresses
IRAM_BASE EQU 0x40000000
;中断偏移寄存器，根据其可以知道到底是哪个或者哪类中断发生了
;Interrupt definitions
INTOFFSET EQU 0X4A000014 ;Address of Interrupt offset Register
;定义是否需要建立中断向量表，以及表存放的位置，根据提示在0x20-0x3fffff78都可以存放。这是显然的，前0x20是存放各种异常的，必须是位于0地址开始的，共8个，1个保留，计32字节。
IntVT_SETUP EQU 1
IntVTAddress EQU 0x33FFFF20
;----------------------- Watchdog Timer Definitions ----------------------------
WT_BASE EQU 0x53000000 ; Watchdog Timer Base Address
WTCON_OFS EQU 0x00 ; Watchdog Timer Control Register Offset
WTDAT_OFS EQU 0x04 ; Watchdog Timer Data Register Offset
WTCNT_OFS EQU 0x08 ; Watchdog Timer Count Register Offset
;// <e> Watchdog Timer Setup
;// <h> Watchdog Timer Control Register (WTCON)
;// <o1.8..15> Prescaler Value <0-255>
;// <o1.5> Watchdog Timer Enable
;// <o1.3..4> Clock Division Factor
;// <0=> 16 <1=> 32 <2=> 64 <3=> 128
;// <o1.2> Interrupt Generation Enable
;// <o1.0> Reset Enable
;// </h>
;// <h> Watchdog Timer Data Register (WTDAT)
;// <o2.0..15> Count Reload Value <0-65535>
;// </h>
;// </e> Watchdog Timer Setup
WT_SETUP EQU 1
WTCON_Val EQU 0x00000000
WTDAT_Val EQU 0x00008000

;----------------------- Clock and Power Management Definitions ----------------
CLOCK_BASE EQU 0x4C000000 ; Clock Base Address
LOCKTIME_OFS EQU 0x00 ; PLL Lock Time Count Register Offset
MPLLCON_OFS EQU 0x04 ; MPLL Configuration Register Offset
UPLLCON_OFS EQU 0x08 ; UPLL Configuration Register Offset
CLKCON_OFS EQU 0x0C ; Clock Generator Control Reg Offset
CLKSLOW_OFS EQU 0x10 ; Clock Slow Control Register Offset
CLKDIVN_OFS EQU 0x14 ; Clock Divider Control Register Offset
CAMDIVN_OFS EQU 0x18 ; Camera Clock Divider Register Offset
;// <e> Clock Setup
;// <h> PLL Lock Time Count Register (LOCKTIME)
;// <o1.16..31> U_LTIME: UPLL Lock Time Count Value for UCLK <0x0-0xFFFF>
;// <o1.0..15> M_LTIME: MPLL Lock Time Count Value for FCLK, HCLK and PCLK <0x0-0xFFFF>
;// </h>
;// <h> MPLL Configuration Register (MPLLCON)
;// MPLL = (2 * m * Fin) / (p * 2^s)
;// <o2.12..19> m: Main Divider m Value <9-256><#-8>
;// m = MDIV + 8
;// <o2.4..9> p: Pre-divider p Value <3-64><#-2>
;// p = PDIV + 2
;// <o2.0..1> s: Post Divider s Value <0-3>
;// s = SDIV
;// </h>
;// <h> UPLL Configuration Register (UPLLCON)
;// UPLL = ( m * Fin) / (p * 2^s)
;// <o3.12..19> m: Main Divider m Value <8-263><#-8>
;// m = MDIV + 8
;// <o3.4..9> p: Pre-divider p Value <2-65><#-2>
;// p = PDIV + 2
;// <o3.0..1> s: Post Divider s Value <0-3>
;// s = SDIV
;// </h>
;// <h> Clock Generation Control Register (CLKCON)
;// <o4.20> AC97 Enable
;// <o4.19> Camera Enable
;// <o4.18> SPI Enable
;// <o4.17> IIS Enable
;// <o4.16> IIC Enable
;// <o4.15> ADC + Touch Screen Enable
;// <o4.14> RTC Enable
;// <o4.13> GPIO Enable
;// <o4.12> UART2 Enable
;// <o4.11> UART1 Enable
;// <o4.10> UART0 Enable
;// <o4.9> SDI Enable
;// <o4.8> PWMTIMER Enable
;// <o4.7> USB Device Enable
;// <o4.6> USB Host Enable
;// <o4.5> LCDC Enable
;// <o4.4> NAND FLASH Controller Enable
;// <o4.3> SLEEP Enable
;// <o4.2> IDLE BIT Enable
;// </h>
;// <h> Clock Slow Control Register (CLKSLOW)
;// <o5.7> UCLK_ON: UCLK ON
;// <o5.5> MPLL_OFF: Turn off PLL
;// <o5.4> SLOW_BIT: Slow Mode Enable
;// <o5.0..2> SLOW_VAL: Slow Clock Divider <0-7>
;// </h>
;// <h> Clock Divider Control Register (CLKDIVN)
;// <o6.3> DIVN_UPLL: UCLK Select
;// <0=> UCLK = UPLL clock
;// <1=> UCLK = UPLL clock / 2
;// <o6.1..2> HDIVN: HCLK Select
;// <0=> HCLK = FCLK
;// <1=> HCLK = FCLK / 2
;// <2=> HCLK = FCLK / 4 if HCLK4_HALF = 0 in CAMDIVN, else HCLK = FCLK / 8
;// <3=> HCLK = FCLK / 3 if HCLK3_HALF = 0 in CAMDIVN, else HCLK = FCLK / 6
;// <o6.0> PDIVN: PCLK Select
;// <0=> PCLK = HCLK
;// <1=> PCLK = HCLK / 2
;// </h>
;// <h> Camera Clock Divider Control Register (CAMDIVN)
;// <o7.12> DVS_EN: ARM Core Clock Select
;// <0=> ARM core runs at FCLK
;// <1=> ARM core runs at HCLK
;// <o7.9> HCLK4_HALF: HDIVN Division Rate Change Bit
;// <0=> If HDIVN = 2 in CLKDIVN then HCLK = FCLK / 4
;// <1=> If HDIVN = 2 in CLKDIVN then HCLK = FCLK / 8
;// <o7.8> HCLK3_HALF: HDIVN Division Rate Change Bit
;// <0=> If HDIVN = 3 in CLKDIVN then HCLK = FCLK / 3
;// <1=> If HDIVN = 3 in CLKDIVN then HCLK = FCLK / 6
;// <o7.4> CAMCLK Select
;// <0=> CAMCLK = UPLL
;// <1=> CAMCLK = UPLL / CAMCLK_DIV
;// <o7.0..3> CAMCLK_DIV: CAMCLK Divider <0-15>
;// Camera Clock = UPLL / (2 * (CAMCLK_DIV + 1))
;// Divider is used only if CAMCLK_SEL = 1
;// </h>
;// </e> Clock Setup
CLOCK_SETUP EQU 1
LOCKTIME_Val EQU 0x0FFF0FFF
MPLLCON_Val EQU 0x00043011
UPLLCON_Val EQU 0x00038021
CLKCON_Val EQU 0x001FFFF0
CLKSLOW_Val EQU 0x00000004
CLKDIVN_Val EQU 0x0000000F
CAMDIVN_Val EQU 0x00000000

;----------------------- Memory Controller Definitions -------------------------
MC_BASE EQU 0x48000000 ; Memory Controller Base Address
BWSCON_OFS EQU 0x00 ; Bus Width and Wait Status Ctrl Offset
BANKCON0_OFS EQU 0x04 ; Bank 0 Control Register Offset
BANKCON1_OFS EQU 0x08 ; Bank 1 Control Register Offset
BANKCON2_OFS EQU 0x0C ; Bank 2 Control Register Offset
BANKCON3_OFS EQU 0x10 ; Bank 3 Control Register Offset
BANKCON4_OFS EQU 0x14 ; Bank 4 Control Register Offset
BANKCON5_OFS EQU 0x18 ; Bank 5 Control Register Offset
BANKCON6_OFS EQU 0x1C ; Bank 6 Control Register Offset
BANKCON7_OFS EQU 0x20 ; Bank 7 Control Register Offset
REFRESH_OFS EQU 0x24 ; SDRAM Refresh Control Register Offset
BANKSIZE_OFS EQU 0x28 ; Flexible Bank Size Register Offset
MRSRB6_OFS EQU 0x2C ; Bank 6 Mode Register Offset
MRSRB7_OFS EQU 0x30 ; Bank 7 Mode Register Offset
;// <e> Memory Controller Setup
;// <h> Bus Width and Wait Control Register (BWSCON)
;// <o1.31> ST7: Use UB/LB for Bank 7
;// <o1.30> WS7: Enable Wait Status for Bank 7
;// <o1.28..29> DW7: Data Bus Width for Bank 7
;// <0=> 8-bit <1=> 16-bit <2=> 32-bit <3=> Reserved
;// <o1.27> ST6: Use UB/LB for Bank 6
;// <o1.26> WS6: Enable Wait Status for Bank 6
;// <o1.24..25> DW6: Data Bus Width for Bank 6
;// <0=> 8-bit <1=> 16-bit <2=> 32-bit <3=> Reserved
;// <o1.23> ST5: Use UB/LB for Bank 5
;// <o1.22> WS5: Enable Wait Status for Bank 5
;// <o1.20..21> DW5: Data Bus Width for Bank 5
;// <0=> 8-bit <1=> 16-bit <2=> 32-bit <3=> Reserved
;// <o1.19> ST4: Use UB/LB for Bank 4
;// <o1.18> WS4: Enable Wait Status for Bank 4
;// <o1.16..17> DW4: Data Bus Width for Bank 4
;// <0=> 8-bit <1=> 16-bit <2=> 32-bit <3=> Reserved
;// <o1.15> ST3: Use UB/LB for Bank 3
;// <o1.14> WS3: Enable Wait Status for Bank 3
;// <o1.12..13> DW3: Data Bus Width for Bank 3
;// <0=> 8-bit <1=> 16-bit <2=> 32-bit <3=> Reserved
;// <o1.11> ST2: Use UB/LB for Bank 2
;// <o1.10> WS2: Enable Wait Status for Bank 2
;// <o1.8..9> DW2: Data Bus Width for Bank 2
;// <0=> 8-bit <1=> 16-bit <2=> 32-bit <3=> Reserved
;// <o1.7> ST1: Use UB/LB for Bank 1
;// <o1.6> WS1: Enable Wait Status for Bank 1
;// <o1.4..5> DW1: Data Bus Width for Bank 1
;// <0=> 8-bit <1=> 16-bit <2=> 32-bit <3=> Reserved
;// <o1.1..2> DW0: Indicate Data Bus Width for Bank 0
;// <1=> 16-bit <2=> 32-bit
;// </h>
;// <h> Bank 0 Control Register (BANKCON0)
;// <o2.13..14> Tacs: Address Set-up Time before nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o2.11..12> Tcos: Chip Selection Set-up Time before nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o2.8..10> Tacc: Access Cycle
;// <0=> 1 clocks <1=> 2 clocks <2=> 3 clocks <3=> 4 clocks
;// <4=> 6 clocks <5=> 8 clocks <6=> 10 clocks <7=> 14 clocks
;// <o2.6..7> Tcoh: Chip Selection Hold Time after nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o2.4..5> Tcah: Address Hold Time after nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o2.2..3> Tacp: Page Mode Access Cycle at Page Mode
;// <0=> 2 clocks <1=> 3 clocks <2=> 4 clocks <3=> 6 clocks
;// <o2.0..1> PMC: Page Mode Configuration
;// <0=> normal (1 data) <1=> 4 data <2=> 8 data <3=> 16 data
;// </h>
;// <h> Bank 1 Control Register (BANKCON1)
;// <o3.13..14> Tacs: Address Set-up Time before nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o3.11..12> Tcos: Chip Selection Set-up Time before nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o3.8..10> Tacc: Access Cycle
;// <0=> 1 clocks <1=> 2 clocks <2=> 3 clocks <3=> 4 clocks
;// <4=> 6 clocks <5=> 8 clocks <6=> 10 clocks <7=> 14 clocks
;// <o3.6..7> Tcoh: Chip Selection Hold Time after nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o3.4..5> Tcah: Address Hold Time after nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o3.2..3> Tacp: Page Mode Access Cycle at Page Mode
;// <0=> 2 clocks <1=> 3 clocks <2=> 4 clocks <3=> 6 clocks
;// <o3.0..1> PMC: Page Mode Configuration
;// <0=> normal (1 data) <1=> 4 data <2=> 8 data <3=> 16 data
;// </h>
;// <h> Bank 2 Control Register (BANKCON2)
;// <o4.13..14> Tacs: Address Set-up Time before nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o4.11..12> Tcos: Chip Selection Set-up Time before nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o4.8..10> Tacc: Access Cycle
;// <0=> 1 clocks <1=> 2 clocks <2=> 3 clocks <3=> 4 clocks
;// <4=> 6 clocks <5=> 8 clocks <6=> 10 clocks <7=> 14 clocks
;// <o4.6..7> Tcoh: Chip Selection Hold Time after nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o4.4..5> Tcah: Address Hold Time after nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o4.2..3> Tacp: Page Mode Access Cycle at Page Mode
;// <0=> 2 clocks <1=> 3 clocks <2=> 4 clocks <3=> 6 clocks
;// <o4.0..1> PMC: Page Mode Configuration
;// <0=> normal (1 data) <1=> 4 data <2=> 8 data <3=> 16 data
;// </h>
;// <h> Bank 3 Control Register (BANKCON3)
;// <o5.13..14> Tacs: Address Set-up Time before nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o5.11..12> Tcos: Chip Selection Set-up Time before nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o5.8..10> Tacc: Access Cycle
;// <0=> 1 clocks <1=> 2 clocks <2=> 3 clocks <3=> 4 clocks
;// <4=> 6 clocks <5=> 8 clocks <6=> 10 clocks <7=> 14 clocks
;// <o5.6..7> Tcoh: Chip Selection Hold Time after nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o5.4..5> Tcah: Address Hold Time after nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o5.2..3> Tacp: Page Mode Access Cycle at Page Mode
;// <0=> 2 clocks <1=> 3 clocks <2=> 4 clocks <3=> 6 clocks
;// <o5.0..1> PMC: Page Mode Configuration
;// <0=> normal (1 data) <1=> 4 data <2=> 8 data <3=> 16 data
;// </h>
;// <h> Bank 4 Control Register (BANKCON4)
;// <o6.13..14> Tacs: Address Set-up Time before nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o6.11..12> Tcos: Chip Selection Set-up Time before nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o6.8..10> Tacc: Access Cycle
;// <0=> 1 clocks <1=> 2 clocks <2=> 3 clocks <3=> 4 clocks
;// <4=> 6 clocks <5=> 8 clocks <6=> 10 clocks <7=> 14 clocks
;// <o6.6..7> Tcoh: Chip Selection Hold Time after nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o6.4..5> Tcah: Address Hold Time after nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o6.2..3> Tacp: Page Mode Access Cycle at Page Mode
;// <0=> 2 clocks <1=> 3 clocks <2=> 4 clocks <3=> 6 clocks
;// <o6.0..1> PMC: Page Mode Configuration
;// <0=> normal (1 data) <1=> 4 data <2=> 8 data <3=> 16 data
;// </h>
;// <h> Bank 5 Control Register (BANKCON5)
;// <o7.13..14> Tacs: Address Set-up Time before nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o7.11..12> Tcos: Chip Selection Set-up Time before nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o7.8..10> Tacc: Access Cycle
;// <0=> 1 clocks <1=> 2 clocks <2=> 3 clocks <3=> 4 clocks
;// <4=> 6 clocks <5=> 8 clocks <6=> 10 clocks <7=> 14 clocks
;// <o7.6..7> Tcoh: Chip Selection Hold Time after nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o7.4..5> Tcah: Address Hold Time after nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o7.2..3> Tacp: Page Mode Access Cycle at Page Mode
;// <0=> 2 clocks <1=> 3 clocks <2=> 4 clocks <3=> 6 clocks
;// <o7.0..1> PMC: Page Mode Configuration
;// <0=> normal (1 data) <1=> 4 data <2=> 8 data <3=> 16 data
;// </h>
;// <h> Bank 6 Control Register (BANKCON6)
;// <o8.15..16> Memory Type Selection
;// <0=> ROM or SRAM <3=> SDRAM
;// <o8.13..14> Tacs: Address Set-up Time before nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o8.11..12> Tcos: Chip Selection Set-up Time before nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o8.8..10> Tacc: Access Cycle
;// <0=> 1 clocks <1=> 2 clocks <2=> 3 clocks <3=> 4 clocks
;// <4=> 6 clocks <5=> 8 clocks <6=> 10 clocks <7=> 14 clocks
;// <o8.6..7> Tcoh: Chip Selection Hold Time after nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o8.4..5> Tcah: Address Hold Time after nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o8.2..3> Tacp/Trcd: Page Mode Access Cycle at Page Mode / RAS to CAS Delay
;// Parameter depends on Memory Type: if type SRAM then parameter is Tacp,
;// if type is SDRAM then parameter is Trcd
;// For SDRAM 6 cycles setting is not allowed
;// <0=> 2 clocks <1=> 3 clocks <2=> 4 clocks <3=> 6 clocks
;// <o8.0..1> PMC/SCAN: Page Mode Configuration / Column Address Number <0-3>
;// Parameter depends on Memory Type: if type SRAM then parameter is PMC,
;// if type is SDRAM then parameter is SCAN
;// </h>
;// <h> Bank 7 Control Register (BANKCON7)
;// <o9.15..16> Memory Type Selection
;// <0=> ROM or SRAM <3=> SDRAM
;// <o9.13..14> Tacs: Address Set-up Time before nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o9.11..12> Tcos: Chip Selection Set-up Time before nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o9.8..10> Tacc: Access Cycle
;// <0=> 1 clocks <1=> 2 clocks <2=> 3 clocks <3=> 4 clocks
;// <4=> 6 clocks <5=> 8 clocks <6=> 10 clocks <7=> 14 clocks
;// <o9.6..7> Tcoh: Chip Selection Hold Time after nOE
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o9.4..5> Tcah: Address Hold Time after nGCS
;// <0=> 0 clocks <1=> 1 clocks <2=> 2 clocks <3=> 4 clocks
;// <o9.2..3> Tacp/Trcd: Page Mode Access Cycle at Page Mode / RAS to CAS Delay
;// Parameter depends on Memory Type: if type SRAM then parameter is Tacp,
;// if type is SDRAM then parameter is Trcd
;// For SDRAM 6 cycles setting is not allowed
;// <0=> 2 clocks <1=> 3 clocks <2=> 4 clocks <3=> 6 clocks
;// <o9.0..1> PMC/SCAN: Page Mode Configuration / Column Address Number <0-3>
;// Parameter depends on Memory Type: if type SRAM then parameter is PMC,
;// if type is SDRAM then parameter is SCAN
;// </h>
;// <h> SDRAM Refresh Control Register (REFRESH)
;// <o10.23> REFEN: SDRAM Refresh Enable
;// <o10.22> TREFMD: SDRAM Refresh Mode
;// <0=> CBR/Auto Refresh <1=> Self Refresh
;// <o10.20..21> Trp: SDRAM RAS Pre-charge Time
;// <0=> 2 clocks <1=> 3 clocks <2=> 4 clocks <3=> Reserved
;// <o10.18..19> Tsrc: SDRAM Semi Row Cycle Time
;// SDRAM Row cycle time: Trc = Tsrc + Trp
;// <0=> 4 clocks <1=> 5 clocks <2=> 6 clocks <3=> 7 clocks
;// <o10.0..10> Refresh Counter <0-1023>
;// Refresh Period = (2048 - Refresh Count + 1) / HCLK
;// </h>
;// <h> Flexible Bank Size Register (BANKSIZE)
;// <o11.7> BURST_EN: ARM Core Burst Operation Enable
;// <o11.5> SCKE_EN: SDRAM Power Down Mode Enable
;// <o11.4> SCLK_EN: SCLK Enabled During SDRAM Access Cycle
;// <0=> SCLK is always active <1=> SCLK is active only during the access
;// <o11.0..2> BK76MAP: BANK6 and BANK7 Memory Map
;// <0=> 32MB / 32MB <1=> 64MB / 64MB <2=> 128MB / 128MB
;// <4=> 2MB / 2MB <5=> 4MB / 4MB <6=> 8MB / 8MB <7=> 16MB / 16MB
;// <o11.0..10> Refresh Counter <0-1023>
;// Refresh Period = (2048 - Refresh Count + 1) / HCLK
;// </h>
;// <h> SDRAM Mode Register Set Register 6 (MRSRB6)
;// <o12.7> WBL: Write Burst Length
;// <0=> Burst (Fixed)
;// <o12.7..8> TM: Test Mode
;// <0=> Mode register set (Fixed)
;// <o12.4..6> CL: CAS Latency
;// <0=> 1 clocks <1=> 2 clocks <2=> 3 clocks
;// <o12.3> BT: Burst Type
;// <0=> Sequential (Fixed)
;// <o12.0..2> BL: Burst Length
;// <0=> 1 (Fixed)
;// </h>
;// <h> SDRAM Mode Register Set Register 7 (MRSRB7)
;// <o13.7> WBL: Write Burst Length
;// <0=> Burst (Fixed)
;// <o13.7..8> TM: Test Mode
;// <0=> Mode register set (Fixed)
;// <o13.4..6> CL: CAS Latency
;// <0=> 1 clocks <1=> 2 clocks <2=> 3 clocks
;// <o13.3> BT: Burst Type
;// <0=> Sequential (Fixed)
;// <o13.0..2> BL: Burst Length
;// <0=> 1 (Fixed)
;// </h>
;// </e> Memory Controller Setup
MC_SETUP EQU 1
BWSCON_Val EQU 0x22000000
BANKCON0_Val EQU 0x00000700
BANKCON1_Val EQU 0x00000700
BANKCON2_Val EQU 0x00000700
BANKCON3_Val EQU 0x00000700
BANKCON4_Val EQU 0x00000700
BANKCON5_Val EQU 0x00000700
BANKCON6_Val EQU 0x00018005
BANKCON7_Val EQU 0x00018005
REFRESH_Val EQU 0x008404F3
BANKSIZE_Val EQU 0x00000032
MRSRB6_Val EQU 0x00000020
MRSRB7_Val EQU 0x00000020

;----------------------- I/O Port Definitions ----------------------------------
GPA_BASE EQU 0x56000000 ; GPA Base Address
GPB_BASE EQU 0x56000010 ; GPB Base Address
GPC_BASE EQU 0x56000020 ; GPC Base Address
GPD_BASE EQU 0x56000030 ; GPD Base Address
GPE_BASE EQU 0x56000040 ; GPE Base Address
GPF_BASE EQU 0x56000050 ; GPF Base Address
GPG_BASE EQU 0x56000060 ; GPG Base Address
GPH_BASE EQU 0x56000070 ; GPH Base Address
GPJ_BASE EQU 0x560000D0 ; GPJ Base Address
GPCON_OFS EQU 0x00 ; Control Register Offset
GPDAT_OFS EQU 0x04 ; Data Register Offset
GPUP_OFS EQU 0x08 ; Pull-up Disable Register Offset
;// <e> I/O Setup
GP_SETUP EQU 1
;// <e> Port A Settings
;// <h> Port A Control Register (GPACON)
;// <o1.22> GPA22 <0=> Output <1=> nFCE
;// <o1.21> GPA21 <0=> Output <1=> nRSTOUT
;// <o1.20> GPA20 <0=> Output <1=> nFRE
;// <o1.19> GPA19 <0=> Output <1=> nFWE
;// <o1.18> GPA18 <0=> Output <1=> ALE
;// <o1.17> GPA17 <0=> Output <1=> CLE
;// <o1.16> GPA16 <0=> Output <1=> nGCS[5]
;// <o1.15> GPA15 <0=> Output <1=> nGCS[4]
;// <o1.14> GPA14 <0=> Output <1=> nGCS[3]
;// <o1.13> GPA13 <0=> Output <1=> nGCS[2]
;// <o1.12> GPA12 <0=> Output <1=> nGCS[1]
;// <o1.11> GPA11 <0=> Output <1=> ADDR26
;// <o1.10> GPA10 <0=> Output <1=> ADDR25
;// <o1.9> GPA9 <0=> Output <1=> ADDR24
;// <o1.8> GPA8 <0=> Output <1=> ADDR23
;// <o1.7> GPA7 <0=> Output <1=> ADDR22
;// <o1.6> GPA6 <0=> Output <1=> ADDR21
;// <o1.5> GPA5 <0=> Output <1=> ADDR20
;// <o1.4> GPA4 <0=> Output <1=> ADDR19
;// <o1.3> GPA3 <0=> Output <1=> ADDR18
;// <o1.2> GPA2 <0=> Output <1=> ADDR17
;// <o1.1> GPA1 <0=> Output <1=> ADDR16
;// <o1.0> GPA0 <0=> Output <1=> ADDR0
;// </h>
;// </e>
GPA_SETUP EQU 0
GPACON_Val EQU 0x000003FF
;// <e> Port B Settings
;// <h> Port B Control Register (GPBCON)
;// <o1.20..21> GPB10 <0=> Input <1=> Output <2=> nXDREQ0 <3=> Reserved
;// <o1.18..19> GPB9 <0=> Input <1=> Output <2=> nXDACK0 <3=> Reserved
;// <o1.16..17> GPB8 <0=> Input <1=> Output <2=> nXDREQ1 <3=> Reserved
;// <o1.14..15> GPB7 <0=> Input <1=> Output <2=> nXDACK1 <3=> Reserved
;// <o1.12..13> GPB6 <0=> Input <1=> Output <2=> nXBREQ <3=> Reserved
;// <o1.10..11> GPB5 <0=> Input <1=> Output <2=> nXBACK <3=> Reserved
;// <o1.8..9> GPB4 <0=> Input <1=> Output <2=> TCLK[0] <3=> Reserved
;// <o1.6..7> GPB3 <0=> Input <1=> Output <2=> TOUT3 <3=> Reserved
;// <o1.4..5> GPB2 <0=> Input <1=> Output <2=> TOUT2 <3=> Reserved
;// <o1.2..3> GPB1 <0=> Input <1=> Output <2=> TOUT1 <3=> Reserved
;// <o1.0..1> GPB0 <0=> Input <1=> Output <2=> TOUT0 <3=> Reserved
;// </h>
;// <h> Port B Pull-up Settings Register (GPBUP)
;// <o2.10> GPB10 Pull-up Disable
;// <o2.9> GPB9 Pull-up Disable
;// <o2.8> GPB8 Pull-up Disable
;// <o2.7> GPB7 Pull-up Disable
;// <o2.6> GPB6 Pull-up Disable
;// <o2.5> GPB5 Pull-up Disable
;// <o2.4> GPB4 Pull-up Disable
;// <o2.3> GPB3 Pull-up Disable
;// <o2.2> GPB2 Pull-up Disable
;// <o2.1> GPB1 Pull-up Disable
;// <o2.0> GPB0 Pull-up Disable
;// </h>
;// </e>
GPB_SETUP EQU 0
GPBCON_Val EQU 0x00000000
GPBUP_Val EQU 0x00000000
;// <e> Port C Settings
;// <h> Port C Control Register (GPCCON)
;// <o1.30..31> GPC15 <0=> Input <1=> Output <2=> VD[7] <3=> Reserved
;// <o1.28..29> GPC14 <0=> Input <1=> Output <2=> VD[6] <3=> Reserved
;// <o1.26..27> GPC13 <0=> Input <1=> Output <2=> VD[5] <3=> Reserved
;// <o1.24..25> GPC12 <0=> Input <1=> Output <2=> VD[4] <3=> Reserved
;// <o1.22..23> GPC11 <0=> Input <1=> Output <2=> VD[3] <3=> Reserved
;// <o1.20..21> GPC10 <0=> Input <1=> Output <2=> VD[2] <3=> Reserved
;// <o1.18..19> GPC9 <0=> Input <1=> Output <2=> VD[1] <3=> Reserved
;// <o1.16..17> GPC8 <0=> Input <1=> Output <2=> VD[0] <3=> Reserved
;// <o1.14..15> GPC7 <0=> Input <1=> Output <2=> LCD_LPCREVB <3=> Reserved
;// <o1.12..13> GPC6 <0=> Input <1=> Output <2=> LCD_LPCREV <3=> Reserved
;// <o1.10..11> GPC5 <0=> Input <1=> Output <2=> LCD_LPCOE <3=> Reserved
;// <o1.8..9> GPC4 <0=> Input <1=> Output <2=> VM <3=> I2SSDI
;// <o1.6..7> GPC3 <0=> Input <1=> Output <2=> VFRAME <3=> Reserved
;// <o1.4..5> GPC2 <0=> Input <1=> Output <2=> VLINE <3=> Reserved
;// <o1.2..3> GPC1 <0=> Input <1=> Output <2=> VCLK <3=> Reserved
;// <o1.0..1> GPC0 <0=> Input <1=> Output <2=> LEND <3=> Reserved
;// </h>
;// <h> Port C Pull-up Settings Register (GPCUP)
;// <o2.15> GPC15 Pull-up Disable
;// <o2.14> GPC14 Pull-up Disable
;// <o2.13> GPC13 Pull-up Disable
;// <o2.12> GPC12 Pull-up Disable
;// <o2.11> GPC11 Pull-up Disable
;// <o2.10> GPC10 Pull-up Disable
;// <o2.9> GPC9 Pull-up Disable
;// <o2.8> GPC8 Pull-up Disable
;// <o2.7> GPC7 Pull-up Disable
;// <o2.6> GPC6 Pull-up Disable
;// <o2.5> GPC5 Pull-up Disable
;// <o2.4> GPC4 Pull-up Disable
;// <o2.3> GPC3 Pull-up Disable
;// <o2.2> GPC2 Pull-up Disable
;// <o2.1> GPC1 Pull-up Disable
;// <o2.0> GPC0 Pull-up Disable
;// </h>
;// </e>
GPC_SETUP EQU 0
GPCCON_Val EQU 0x00000000
GPCUP_Val EQU 0x00000000
;// <e> Port D Settings
;// <h> Port D Control Register (GPDCON)
;// <o1.30..31> GPD15 <0=> Input <1=> Output <2=> VD[23] <3=> nSS0
;// <o1.28..29> GPD14 <0=> Input <1=> Output <2=> VD[22] <3=> nSS1
;// <o1.26..27> GPD13 <0=> Input <1=> Output <2=> VD[21] <3=> Reserved
;// <o1.24..25> GPD12 <0=> Input <1=> Output <2=> VD[20] <3=> Reserved
;// <o1.22..23> GPD11 <0=> Input <1=> Output <2=> VD[19] <3=> Reserved
;// <o1.20..21> GPD10 <0=> Input <1=> Output <2=> VD[18] <3=> SPICLK1
;// <o1.18..19> GPD9 <0=> Input <1=> Output <2=> VD[17] <3=> SPIMOSI1
;// <o1.16..17> GPD8 <0=> Input <1=> Output <2=> VD[16] <3=> SPIMISO1
;// <o1.14..15> GPD7 <0=> Input <1=> Output <2=> VD[15] <3=> Reserved
;// <o1.12..13> GPD6 <0=> Input <1=> Output <2=> VD[14] <3=> Reserved
;// <o1.10..11> GPD5 <0=> Input <1=> Output <2=> VD[13] <3=> Reserved
;// <o1.8..9> GPD4 <0=> Input <1=> Output <2=> VD[12] <3=> Reserved
;// <o1.6..7> GPD3 <0=> Input <1=> Output <2=> VD[11] <3=> Reserved
;// <o1.4..5> GPD2 <0=> Input <1=> Output <2=> VD[10] <3=> Reserved
;// <o1.2..3> GPD1 <0=> Input <1=> Output <2=> VD[9] <3=> Reserved
;// <o1.0..1> GPD0 <0=> Input <1=> Output <2=> VD[8] <3=> Reserved
;// </h>
;// <h> Port D Pull-up Settings Register (GPDUP)
;// <o2.15> GPD15 Pull-up Disable
;// <o2.14> GPD14 Pull-up Disable
;// <o2.13> GPD13 Pull-up Disable
;// <o2.12> GPD12 Pull-up Disable
;// <o2.11> GPD11 Pull-up Disable
;// <o2.10> GPD10 Pull-up Disable
;// <o2.9> GPD9 Pull-up Disable
;// <o2.8> GPD8 Pull-up Disable
;// <o2.7> GPD7 Pull-up Disable
;// <o2.6> GPD6 Pull-up Disable
;// <o2.5> GPD5 Pull-up Disable
;// <o2.4> GPD4 Pull-up Disable
;// <o2.3> GPD3 Pull-up Disable
;// <o2.2> GPD2 Pull-up Disable
;// <o2.1> GPD1 Pull-up Disable
;// <o2.0> GPD0 Pull-up Disable
;// </h>
;// </e>
GPD_SETUP EQU 0
GPDCON_Val EQU 0x00000000
GPDUP_Val EQU 0x00000000
;// <e> Port E Settings
;// <h> Port E Control Register (GPECON)
;// <o1.30..31> GPE15 <0=> Input <1=> Output <2=> IICSDA <3=> Reserved
;// This pad is open-drain, and has no pull-up option.
;// <o1.28..29> GPE14 <0=> Input <1=> Output <2=> IICSCL <3=> Reserved
;// This pad is open-drain, and has no pull-up option.
;// <o1.26..27> GPE13 <0=> Input <1=> Output <2=> SPICLK0 <3=> Reserved
;// <o1.24..25> GPE12 <0=> Input <1=> Output <2=> SPIMOSI0 <3=> Reserved
;// <o1.22..23> GPE11 <0=> Input <1=> Output <2=> SPIMISO0 <3=> Reserved
;// <o1.20..21> GPE10 <0=> Input <1=> Output <2=> SDDAT3 <3=> Reserved
;// <o1.18..19> GPE9 <0=> Input <1=> Output <2=> SDDAT2 <3=> Reserved
;// <o1.16..17> GPE8 <0=> Input <1=> Output <2=> SDDAT1 <3=> Reserved
;// <o1.14..15> GPE7 <0=> Input <1=> Output <2=> SDDAT0 <3=> Reserved
;// <o1.12..13> GPE6 <0=> Input <1=> Output <2=> SDCMD <3=> Reserved
;// <o1.10..11> GPE5 <0=> Input <1=> Output <2=> SDCLK <3=> Reserved
;// <o1.8..9> GPE4 <0=> Input <1=> Output <2=> I2SDO <3=> AC_SDATA_OUT
;// <o1.6..7> GPE3 <0=> Input <1=> Output <2=> I2SDI <3=> AC_SDATA_IN
;// <o1.4..5> GPE2 <0=> Input <1=> Output <2=> CDCLK <3=> AC_nRESET
;// <o1.2..3> GPE1 <0=> Input <1=> Output <2=> I2SSCLK <3=> AC_BIT_CLK
;// <o1.0..1> GPE0 <0=> Input <1=> Output <2=> I2SLRCK <3=> AC_SYNC
;// </h>
;// <h> Port E Pull-up Settings Register (GPEUP)
;// <o2.13> GPE13 Pull-up Disable
;// <o2.12> GPE12 Pull-up Disable
;// <o2.11> GPE11 Pull-up Disable
;// <o2.10> GPE10 Pull-up Disable
;// <o2.9> GPE9 Pull-up Disable
;// <o2.8> GPE8 Pull-up Disable
;// <o2.7> GPE7 Pull-up Disable
;// <o2.6> GPE6 Pull-up Disable
;// <o2.5> GPE5 Pull-up Disable
;// <o2.4> GPE4 Pull-up Disable
;// <o2.3> GPE3 Pull-up Disable
;// <o2.2> GPE2 Pull-up Disable
;// <o2.1> GPE1 Pull-up Disable
;// <o2.0> GPE0 Pull-up Disable
;// </h>
;// </e>
GPE_SETUP EQU 0
GPECON_Val EQU 0x00000000
GPEUP_Val EQU 0x00000000
;// <e> Port F Settings
;// <h> Port F Control Register (GPFCON)
;// <o1.14..15> GPF7 <0=> Input <1=> Output <2=> EINT[7] <3=> Reserved
;// <o1.12..13> GPF6 <0=> Input <1=> Output <2=> EINT[6] <3=> Reserved
;// <o1.10..11> GPF5 <0=> Input <1=> Output <2=> EINT[5] <3=> Reserved
;// <o1.8..9> GPF4 <0=> Input <1=> Output <2=> EINT[4] <3=> Reserved
;// <o1.6..7> GPF3 <0=> Input <1=> Output <2=> EINT[3] <3=> Reserved
;// <o1.4..5> GPF2 <0=> Input <1=> Output <2=> EINT[2] <3=> Reserved
;// <o1.2..3> GPF1 <0=> Input <1=> Output <2=> EINT[1] <3=> Reserved
;// <o1.0..1> GPF0 <0=> Input <1=> Output <2=> EINT[0] <3=> Reserved
;// </h>
;// <h> Port F Pull-up Settings Register (GPFUP)
;// <o2.7> GPF7 Pull-up Disable
;// <o2.6> GPF6 Pull-up Disable
;// <o2.5> GPF5 Pull-up Disable
;// <o2.4> GPF4 Pull-up Disable
;// <o2.3> GPF3 Pull-up Disable
;// <o2.2> GPF2 Pull-up Disable
;// <o2.1> GPF1 Pull-up Disable
;// <o2.0> GPF0 Pull-up Disable
;// </h>
;// </e>
GPF_SETUP EQU 0
GPFCON_Val EQU 0x00000000
GPFUP_Val EQU 0x00000000
;// <e> Port G Settings
;// <h> Port G Control Register (GPGCON)
;// <o1.30..31> GPG15 <0=> Input <1=> Output <2=> EINT[23] <3=> Reserved
;// <o1.28..29> GPG14 <0=> Input <1=> Output <2=> EINT[22] <3=> Reserved
;// <o1.26..27> GPG13 <0=> Input <1=> Output <2=> EINT[21] <3=> Reserved
;// <o1.24..25> GPG12 <0=> Input <1=> Output <2=> EINT[20] <3=> Reserved
;// <o1.22..23> GPG11 <0=> Input <1=> Output <2=> EINT[19] <3=> TCLK[1]
;// <o1.20..21> GPG10 <0=> Input <1=> Output <2=> EINT[18] <3=> nCTS1
;// <o1.18..19> GPG9 <0=> Input <1=> Output <2=> EINT[17] <3=> nRTS1
;// <o1.16..17> GPG8 <0=> Input <1=> Output <2=> EINT[16] <3=> Reserved
;// <o1.14..15> GPG7 <0=> Input <1=> Output <2=> EINT[15] <3=> SPICLK1
;// <o1.12..13> GPG6 <0=> Input <1=> Output <2=> EINT[14] <3=> SPIMOSI1
;// <o1.10..11> GPG5 <0=> Input <1=> Output <2=> EINT[13] <3=> SPIMISO1
;// <o1.8..9> GPG4 <0=> Input <1=> Output <2=> EINT[12] <3=> LCD_PWRDN
;// <o1.6..7> GPG3 <0=> Input <1=> Output <2=> EINT[11] <3=> nSS1
;// <o1.4..5> GPG2 <0=> Input <1=> Output <2=> EINT[10] <3=> nSS0
;// <o1.2..3> GPG1 <0=> Input <1=> Output <2=> EINT[9] <3=> Reserved
;// <o1.0..1> GPG0 <0=> Input <1=> Output <2=> EINT[8] <3=> Reserved
;// </h>
;// <h> Port G Pull-up Settings Register (GPGUP)
;// <o2.15> GPG15 Pull-up Disable
;// <o2.14> GPG14 Pull-up Disable
;// <o2.13> GPG13 Pull-up Disable
;// <o2.12> GPG12 Pull-up Disable
;// <o2.11> GPG11 Pull-up Disable
;// <o2.10> GPG10 Pull-up Disable
;// <o2.9> GPG9 Pull-up Disable
;// <o2.8> GPG8 Pull-up Disable
;// <o2.7> GPG7 Pull-up Disable
;// <o2.6> GPG6 Pull-up Disable
;// <o2.5> GPG5 Pull-up Disable
;// <o2.4> GPG4 Pull-up Disable
;// <o2.3> GPG3 Pull-up Disable
;// <o2.2> GPG2 Pull-up Disable
;// <o2.1> GPG1 Pull-up Disable
;// <o2.0> GPG0 Pull-up Disable
;// </h>
;// </e>
GPG_SETUP EQU 0
GPGCON_Val EQU 0x00000000
GPGUP_Val EQU 0x00000000
;// <e> Port H Settings
;// <h> Port H Control Register (GPHCON)
;// <o1.20..21> GPH10 <0=> Input <1=> Output <2=> CLKOUT1 <3=> Reserved
;// <o1.18..19> GPH9 <0=> Input <1=> Output <2=> CLKOUT0 <3=> Reserved
;// <o1.16..17> GPH8 <0=> Input <1=> Output <2=> UEXTCLK <3=> Reserved
;// <o1.14..15> GPH7 <0=> Input <1=> Output <2=> RXD[2] <3=> nCTS1
;// <o1.12..13> GPH6 <0=> Input <1=> Output <2=> TXD[2] <3=> nRTS1
;// <o1.10..11> GPH5 <0=> Input <1=> Output <2=> RXD[1] <3=> Reserved
;// <o1.8..9> GPH4 <0=> Input <1=> Output <2=> TXD[1] <3=> Reserved
;// <o1.6..7> GPH3 <0=> Input <1=> Output <2=> RXD[0] <3=> Reserved
;// <o1.4..5> GPH2 <0=> Input <1=> Output <2=> TXD[0] <3=> Reserved
;// <o1.2..3> GPH1 <0=> Input <1=> Output <2=> nRTS0 <3=> Reserved
;// <o1.0..1> GPH0 <0=> Input <1=> Output <2=> nCTS0 <3=> Reserved
;// </h>
;// <h> Port H Pull-up Settings Register (GPHUP)
;// <o2.10> GPH10 Pull-up Disable
;// <o2.9> GPH9 Pull-up Disable
;// <o2.8> GPH8 Pull-up Disable
;// <o2.7> GPH7 Pull-up Disable
;// <o2.6> GPH6 Pull-up Disable
;// <o2.5> GPH5 Pull-up Disable
;// <o2.4> GPH4 Pull-up Disable
;// <o2.3> GPH3 Pull-up Disable
;// <o2.2> GPH2 Pull-up Disable
;// <o2.1> GPH1 Pull-up Disable
;// <o2.0> GPH0 Pull-up Disable
;// </h>
;// </e>
GPH_SETUP EQU 0
GPHCON_Val EQU 0x00000000
GPHUP_Val EQU 0x00000000
;// <e> Port J Settings
;// <h> Port J Control Register (GPJCON)
;// <o1.24..25> GPJ12 <0=> Input <1=> Output <2=> CAMRESET <3=> Reserved
;// <o1.22..23> GPJ11 <0=> Input <1=> Output <2=> CAMCLKOUT <3=> Reserved
;// <o1.20..21> GPJ10 <0=> Input <1=> Output <2=> CAMHREF <3=> Reserved
;// <o1.18..19> GPJ9 <0=> Input <1=> Output <2=> CAMVSYNC <3=> Reserved
;// <o1.16..17> GPJ8 <0=> Input <1=> Output <2=> CAMPCLK <3=> Reserved
;// <o1.14..15> GPJ7 <0=> Input <1=> Output <2=> CAMDATA[7] <3=> Reserved
;// <o1.12..13> GPJ6 <0=> Input <1=> Output <2=> CAMDATA[6] <3=> Reserved
;// <o1.10..11> GPJ5 <0=> Input <1=> Output <2=> CAMDATA[5] <3=> Reserved
;// <o1.8..9> GPJ4 <0=> Input <1=> Output <2=> CAMDATA[4] <3=> Reserved
;// <o1.6..7> GPJ3 <0=> Input <1=> Output <2=> CAMDATA[3] <3=> Reserved
;// <o1.4..5> GPJ2 <0=> Input <1=> Output <2=> CAMDATA[2] <3=> Reserved
;// <o1.2..3> GPJ1 <0=> Input <1=> Output <2=> CAMDATA[1] <3=> Reserved
;// <o1.0..1> GPJ0 <0=> Input <1=> Output <2=> CAMDATA[0] <3=> Reserved
;// </h>
;// <h> Port J Pull-up Settings Register (GPJUP)
;// <o2.12> GPJ12 Pull-up Disable
;// <o2.11> GPJ11 Pull-up Disable
;// <o2.10> GPJ10 Pull-up Disable
;// <o2.9> GPJ9 Pull-up Disable
;// <o2.8> GPJ8 Pull-up Disable
;// <o2.7> GPJ7 Pull-up Disable
;// <o2.6> GPJ6 Pull-up Disable
;// <o2.5> GPJ5 Pull-up Disable
;// <o2.4> GPJ4 Pull-up Disable
;// <o2.3> GPJ3 Pull-up Disable
;// <o2.2> GPJ2 Pull-up Disable
;// <o2.1> GPJ1 Pull-up Disable
;// <o2.0> GPJ0 Pull-up Disable
;// </h>
;// </e>
GPJ_SETUP EQU 0
GPJCON_Val EQU 0x00000000
GPJUP_Val EQU 0x00000000
;// </e> I/O Setup

;----------------------- CODE --------------------------------------------------
 PRESERVE8

; Area Definition and Entry Point
; Startup Code must be linked first at Address at which it expects to run.
 AREA RESET, CODE, READONLY
 ARM
 IF :LNOT::DEF:__EVAL
 IMPORT ||Image$$ER_ROM1$$RO$$Length||
 IMPORT ||Image$$RW_RAM1$$RW$$Length||
 ENDIF
; Exception Vectors
; Mapped to Address 0.
; Absolute addressing mode must be used.
; Dummy Handlers are implemented as infinite loops which can be modified.
Vectors LDR PC, Reset_Addr
 LDR PC, Undef_Addr
 LDR PC, SWI_Addr
 LDR PC, PAbt_Addr
 LDR PC, DAbt_Addr
 IF :DEF:__EVAL
 DCD 0x4000
 ELSE
 DCD ||Image$$ER_ROM1$$RO$$Length||+\
 ||Image$$RW_RAM1$$RW$$Length||
 ENDIF
 LDR PC, IRQ_Addr
 LDR PC, FIQ_Addr
 IF :DEF:__RTX
 IMPORT SWI_Handler
 IMPORT IRQ_Handler_RTX
 ENDIF
;如果需要建立中断向量表的话，这里要做一些事情，共32类中断。按照中断相关寄存器的顺序来依次放在中断向量表里。这里这些标号的本身数值就等于中断向量表所处的相应地址而已。还未涉及真正的程序。
 IF IntVT_SETUP <> 0

;Interrupt Vector Table Address
HandleEINT0 EQU IntVTAddress
HandleEINT1 EQU IntVTAddress +4
HandleEINT2 EQU IntVTAddress +4*2
HandleEINT3 EQU IntVTAddress +4*3
HandleEINT4_7 EQU IntVTAddress +4*4
HandleEINT8_23 EQU IntVTAddress +4*5
HandleCAM EQU IntVTAddress +4*6
HandleBATFLT EQU IntVTAddress +4*7
HandleTICK EQU IntVTAddress +4*8
HandleWDT EQU IntVTAddress +4*9
HandleTIMER0 EQU IntVTAddress +4*10
HandleTIMER1 EQU IntVTAddress +4*11
HandleTIMER2 EQU IntVTAddress +4*12
HandleTIMER3 EQU IntVTAddress +4*13
HandleTIMER4 EQU IntVTAddress +4*14
HandleUART2 EQU IntVTAddress +4*15
HandleLCD EQU IntVTAddress +4*16
HandleDMA0 EQU IntVTAddress +4*17
HandleDMA1 EQU IntVTAddress +4*18
HandleDMA2 EQU IntVTAddress +4*19
HandleDMA3 EQU IntVTAddress +4*20
HandleMMC EQU IntVTAddress +4*21
HandleSPI0 EQU IntVTAddress +4*22
HandleUART1 EQU IntVTAddress +4*23
HandleNFCON EQU IntVTAddress +4*24
HandleUSBD EQU IntVTAddress +4*25
HandleUSBH EQU IntVTAddress +4*26
HandleIIC EQU IntVTAddress +4*27
HandleUART0 EQU IntVTAddress +4*28
HandleSPI1 EQU IntVTAddress +4*39
HandleRTC EQU IntVTAddress +4*30
HandleADC EQU IntVTAddress +4*31

;画个图说明吧。假设IntVTAddress = 0x33ffff20。
;0x33ff_ff20 = HandleEINT0 | EINT0的真正的中断程序函数地址噢 |
;0x33ff_ff24 = HandleEINT1 | EINT1的真正的中断程序函数地址噢 |
;.......... = ........... | ................................|
;.......... = ........... | ..................................|
;0x33ff_ff9c = HandleADC | ADC的真正的中断程序函数地址噢 |

IRQ_Entry
 sub sp,sp,#4 ; 先在IRQ模式下的栈里保留1个4字节空间，至于干什么，下面就知道了
 stmfd sp!,{r8-r9} ; 将可能用到的寄存器压栈保存先。

 ldr r9,=INTOFFSET ; 将INTOFFSET寄存器里的数值取出来，放在R9
 ldr r9,[r9]
 ldr r8,=HandleEINT0 ; 将HandleEINT0这个数值取出来放在R8，即是上面的0x33ff_ff20
 add r8,r8,r9,lsl #2 ; R8 + (R9 * 4) ---> R8相当于上面的R8 = IntVTAddress + 4*25之类的.
 ldr r8,[r8] ; 取此时中断向量表应该取的位置里面的内容，即真正的中断程序.
 str r8,[sp,#8] ; sp+8跳过R8 R9，然后将R8即真正的中断处理程序放在栈中
 ldmfd sp!,{r8-r9,pc} ; 满减栈操作，将r8,r9,中断例程指针对应传给r8 r9 pc，即引起了跳转。

ENDIF
Reset_Addr DCD Reset_Handler
Undef_Addr DCD Undef_Handler
SWI_Addr DCD SWI_Handler
PAbt_Addr DCD PAbt_Handler
DAbt_Addr DCD DAbt_Handler
 DCD 0 ; Reserved Address
 IF :DEF:__RTX
IRQ_Addr DCD IRQ_Handler_RTX
 ELSE
IRQ_Addr DCD IRQ_Handler
 ENDIF
FIQ_Addr DCD FIQ_Handler
Undef_Handler B Undef_Handler
 IF :DEF:__RTX
 ELSE
SWI_Handler B SWI_Handler
 ENDIF
PAbt_Handler B PAbt_Handler
DAbt_Handler B DAbt_Handler
;注意如果IRQ中断发生的话，而没有建立中断向量表的话，就原地跳舞
 IF IntVT_SETUP <> 1
IRQ_Handler B IRQ_Handler
 ENDIF
;若需要建立中断向量表的话，会进入建立表的程序处，即上面看到的IRQ_Entry。
 IF IntVT_SETUP <> 0
IRQ_Handler B IRQ_Entry
; ENDIF
FIQ_Handler B FIQ_Handler

; Reset Handler
 EXPORT Reset_Handler
Reset_Handler

; Watchdog Setup ---------------------------------------------------------------
 IF WT_SETUP != 0
 LDR R0, =WT_BASE
 LDR R1, =WTCON_Val
 LDR R2, =WTDAT_Val
 STR R2, [R0, #WTCNT_OFS]
 STR R2, [R0, #WTDAT_OFS]
 STR R1, [R0, #WTCON_OFS]
 ENDIF

; Clock Setup ------------------------------------------------------------------

 IF (:LNOT:(:DEF:NO_CLOCK_SETUP)):LAND:(CLOCK_SETUP != 0)
 LDR R0, =CLOCK_BASE
 LDR R1, =LOCKTIME_Val
 STR R1, [R0, #LOCKTIME_OFS]
 MOV R1, #CLKDIVN_Val
 STR R1, [R0, #CLKDIVN_OFS]
 LDR R1, =CAMDIVN_Val
 STR R1, [R0, #CAMDIVN_OFS]
 LDR R1, =MPLLCON_Val
 STR R1, [R0, #MPLLCON_OFS]
 LDR R1, =UPLLCON_Val
 STR R1, [R0, #UPLLCON_OFS]
 MOV R1, #CLKSLOW_Val
 STR R1, [R0, #CLKSLOW_OFS]
 LDR R1, =CLKCON_Val
 STR R1, [R0, #CLKCON_OFS]
 ENDIF

; Memory Controller Setup ------------------------------------------------------
 IF (:LNOT:(:DEF:NO_MC_SETUP)):LAND:(CLOCK_SETUP != 0)
 LDR R0, =MC_BASE
 LDR R1, =BWSCON_Val
 STR R1, [R0, #BWSCON_OFS]
 LDR R1, =BANKCON0_Val
 STR R1, [R0, #BANKCON0_OFS]
 LDR R1, =BANKCON1_Val
 STR R1, [R0, #BANKCON1_OFS]
 LDR R1, =BANKCON2_Val
 STR R1, [R0, #BANKCON2_OFS]
 LDR R1, =BANKCON3_Val
 STR R1, [R0, #BANKCON3_OFS]
 LDR R1, =BANKCON4_Val
 STR R1, [R0, #BANKCON4_OFS]
 LDR R1, =BANKCON5_Val
 STR R1, [R0, #BANKCON5_OFS]
 LDR R1, =BANKCON6_Val
 STR R1, [R0, #BANKCON6_OFS]
 LDR R1, =BANKCON7_Val
 STR R1, [R0, #BANKCON7_OFS]
 LDR R1, =REFRESH_Val
 STR R1, [R0, #REFRESH_OFS]
 MOV R1, #BANKSIZE_Val
 STR R1, [R0, #BANKSIZE_OFS]
 MOV R1, #MRSRB6_Val
 STR R1, [R0, #MRSRB6_OFS]
 MOV R1, #MRSRB7_Val
 STR R1, [R0, #MRSRB7_OFS]
 ENDIF

; I/O Pins Setup ---------------------------------------------------------------

 IF (:LNOT:(:DEF:NO_GP_SETUP)):LAND:(GP_SETUP != 0)
 IF GPA_SETUP != 0
 LDR R0, =GPA_BASE
 LDR R1, =GPACON_Val
 STR R1, [R0, #GPCON_OFS]
 ENDIF
 IF GPB_SETUP != 0
 LDR R0, =GPB_BASE
 LDR R1, =GPBCON_Val
 STR R1, [R0, #GPCON_OFS]
 LDR R1, =GPBUP_Val
 STR R1, [R0, #GPUP_OFS]
 ENDIF
 IF GPC_SETUP != 0
 LDR R0, =GPC_BASE
 LDR R1, =GPCCON_Val
 STR R1, [R0, #GPCON_OFS]
 LDR R1, =GPCUP_Val
 STR R1, [R0, #GPUP_OFS]
 ENDIF
 IF GPD_SETUP != 0
 LDR R0, =GPD_BASE
 LDR R1, =GPDCON_Val
 STR R1, [R0, #GPCON_OFS]
 LDR R1, =GPDUP_Val
 STR R1, [R0, #GPUP_OFS]
 ENDIF
 IF GPE_SETUP != 0
 LDR R0, =GPE_BASE
 LDR R1, =GPECON_Val
 STR R1, [R0, #GPCON_OFS]
 LDR R1, =GPEUP_Val
 STR R1, [R0, #GPUP_OFS]
 ENDIF
 IF GPF_SETUP != 0
 LDR R0, =GPF_BASE
 LDR R1, =GPFCON_Val
 STR R1, [R0, #GPCON_OFS]
 LDR R1, =GPFUP_Val
 STR R1, [R0, #GPUP_OFS]
 ENDIF
 IF GPG_SETUP != 0
 LDR R0, =GPG_BASE
 LDR R1, =GPGCON_Val
 STR R1, [R0, #GPCON_OFS]
 LDR R1, =GPGUP_Val
 STR R1, [R0, #GPUP_OFS]
 ENDIF

 IF GPH_SETUP != 0
 LDR R0, =GPH_BASE
 LDR R1, =GPHCON_Val
 STR R1, [R0, #GPCON_OFS]
 LDR R1, =GPHUP_Val
 STR R1, [R0, #GPUP_OFS]
 ENDIF
 IF GPJ_SETUP != 0
 LDR R0, =GPJ_BASE
 LDR R1, =GPJCON_Val
 STR R1, [R0, #GPCON_OFS]
 LDR R1, =GPJUP_Val
 STR R1, [R0, #GPUP_OFS]
 ENDIF

 ENDIF

; Copy Exception Vectors to Internal RAM ---------------------------------------
 IF :DEF:RAM_INTVEC
 ADR R8, Vectors ; Source
 LDR R9, =IRAM_BASE ; Destination
 LDMIA R8!, {R0-R7} ; Load Vectors
 STMIA R9!, {R0-R7} ; Store Vectors
 LDMIA R8!, {R0-R7} ; Load Handler Addresses
 STMIA R9!, {R0-R7} ; Store Handler Addresses
 ENDIF

; Setup Stack for each mode ----------------------------------------------------
 LDR R0, =Stack_Top
; Enter Undefined Instruction Mode and set its Stack Pointer
 MSR CPSR_c, #Mode_UND:OR:I_Bit:OR:F_Bit
 MOV SP, R0
 SUB R0, R0, #UND_Stack_Size
; Enter Abort Mode and set its Stack Pointer
 MSR CPSR_c, #Mode_ABT:OR:I_Bit:OR:F_Bit
 MOV SP, R0
 SUB R0, R0, #ABT_Stack_Size
; Enter FIQ Mode and set its Stack Pointer
 MSR CPSR_c, #Mode_FIQ:OR:I_Bit:OR:F_Bit
 MOV SP, R0
 SUB R0, R0, #FIQ_Stack_Size
; Enter IRQ Mode and set its Stack Pointer
 MSR CPSR_c, #Mode_IRQ:OR:I_Bit:OR:F_Bit
 MOV SP, R0
 SUB R0, R0, #IRQ_Stack_Size
; Enter Supervisor Mode and set its Stack Pointer
 MSR CPSR_c, #Mode_SVC:OR:I_Bit:OR:F_Bit
 MOV SP, R0
 SUB R0, R0, #SVC_Stack_Size
; Enter User Mode and set its Stack Pointer
 MSR CPSR_c, #Mode_USR
 MOV SP, R0
 SUB SL, SP, #USR_Stack_Size
; Enter User Mode and set its Stack Pointer
 MSR CPSR_c, #Mode_USR
 IF :DEF:__MICROLIB
 EXPORT __initial_sp
 ELSE
 MOV SP, R0
 SUB SL, SP, #USR_Stack_Size
 ENDIF

; Enter the C code -------------------------------------------------------------
 IMPORT __main
 LDR R0, =__main
 BX R0

 IF :DEF:__MICROLIB
 EXPORT __heap_base
 EXPORT __heap_limit
 ELSE
; User Initial Stack & Heap
 AREA |.text|, CODE, READONLY
 IMPORT __use_two_region_memory
 EXPORT __user_initial_stackheap
__user_initial_stackheap
 LDR R0, = Heap_Mem
 LDR R1, =(Stack_Mem + USR_Stack_Size)
 LDR R2, = (Heap_Mem + Heap_Size)
 LDR R3, = Stack_Mem
 BX LR
 ENDIF

; END

定时器0的初始化和中断函数

蓝海 · 发表于 2012-4-24 00:14:15

这个问题让我比较纠结，大家帮忙看看
定时器0的初始化和中断函数

void Timer0_Isr(void)
{
// static int i;

long int flag1,flag2;

rTCON = rTCON & (~0xf) |0x08; // stop
flag1 = rSRCPND;
flag2 = rINTPND;
rSRCPND |= 1 << 10;
rINTPND |= 1 << 10;
flag1 = rSRCPND;
flag2 = rINTPND;
 rTCON = rTCON & (~0xf) |0x09; // star
// ClearPending(BIT_TIMER0);
// ClearPending( BIT_USBH);
IntCnt++;
// if(i == 1)
// {
// i=0 ;
 LED1_ON;
// }
// DelayNS(10);
// LED_OFF;
// DelayNS(10);
// LED1_ON;
// DelayNS(10);
// else
// {
// i =1 ;

// }
/* if(IntCnt%2)
rGPBDAT = 0x07fe;
else
rGPBDAT = 0x0000;*/
// OSTimeTick();
}

/*********************************************************************************************************
Initial Timer0 use for ucos time tick
********************************************************************************************************/
void Timer0Init(void)
{
// 定时器设置

rTCON = rTCON & (~0xf) ; // clear manual update bit, stop Timer0

rTCFG0 &= 0xffffff00; // set Timer 0&1 prescaler 0
rTCFG0 |= 15; //prescaler = 15+1

rTCFG1 &= 0xfffffff0; // set Timer 0 MUX 1/4
rTCFG1 |= 0x00000001; // set Timer 0 MUX 1/4
// rTCNTB0 = (PCLK / (4 *15* OS_TICKS_PER_SEC)) - 1;
rTCNTB0 = (PCLK / (4 *16* 10)) - 1;

rTCON = rTCON & (~0xf) |0x02; // updata
rTCON = rTCON & (~0xf) |0x09; // star
}

/*********************************************************************************************************
system IsrInit
********************************************************************************************************/
extern void OSTickISR(void);
void ISRInit(void)
{
// 设置中断控制器
rPRIORITY = 0x00000000; // 使用默认的固定的优先级
rINTMOD = 0x00000000; // 所有中断均为IRQ中断
pISR_TIMER0 = (uint32) Timer0_Isr;
rINTMSK &= ~(1<<10); // 打开TIMER0中断允许
IntCnt=0;
}

蓝海 · 发表于 2012-4-24 08:28:50

当屏蔽了ISRInit（）函数时，程序能正常运行，没屏蔽时，程序死在timedelay（m）那个时间函数那里（这个函数我没贴出来，总之就是while（1）里自加t,当t>m就break），还得说明下，当我在main（）主函数的while（1）里加断点仿真时，程序就能在这个while里面循环运行了

蓝海 · 发表于 2012-4-24 19:21:30

怎么没人回复啊，启动代码虽然有点长，但大部分可以不用看的谁帮我看看，为什么只能中断一次呢？

﹖诲ザ · 发表于 2012-5-21 12:57:53

void Timer0_Isr(void)
{
// static int i;

 long int flag1,flag2;

 rTCON = rTCON & (~0xf) |0x08; // stop
 flag1 = rSRCPND;
 flag2 = rINTPND;
 rSRCPND |= 1 << 10;
 rINTPND |= 1 << 10;
 flag1 = rSRCPND;
 flag2 = rINTPND;
最后两行是不是写反了啊！我看的是感觉是写反了啊

﹖诲ザ · 发表于 2012-5-21 12:59:51

应该是rSRCPND=flag1；rINTPND=falg2吧，按照你程序的意思

﹖诲ザ · 发表于 2012-5-21 13:03:17

错了。错了··看错了·你程序前两行的那个flag感觉好像是没有用，而后你的程序在做中断的时候没有给该位清零，你在你的中断函数的末尾给其清零一下

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