前言
ARM 处理器是英国 Acorn 有限公司设计的低功耗低成本的一款 RISC 微处理器
ARM 全称为 Acorn RISC Machine
因为价格与能耗上的明显优势，在手持设备与嵌入式领域大放异彩，可以说目前的绝大部分便携或手持电子消费品都是用的 ARM 芯片
Tip: 当然还有更弱的终端由单片机( PC51 一类的)来实现，ARM 具备更复杂和强劲的控制与处理能力，价格也相对更贵
前面两篇简单地对 ARM 裸机开发、平台环境与工具、创建项目、按键与 LED、LED 与蜂鸣器等相关控制与基础进行了演示
这里再对嵌入式通讯过程中常用的 UART (Universal Asynchronous Receiver/Transmitter) 即 通用异步收发传输器 接口进行探究
概要
带 FIFO 的串口通讯
要求
- 使用 ARM 板 UART 的 FIFO 模式读写数据 (与电脑串口交互信息)
UART 电路原理图
创建项目
创建项目的总体过程就是
- 新建文件夹
- 创建项目文件
- 项目中添加入源代码
只有以下几个方式稍微注意一下
选择三星 S3C2440A芯片
Device 选项卡中确保是正确的设备选型(和头文件相关，寄存器的正确地址决定于此)
设定时钟频率和栈大小
Target 选项卡中确保时钟频率和板载一致
正确设定内存(只读栈和读写栈，也就是代码区与数据区的大小)
选择H-JTAG ARM 模式
选择正确的模式
使用外部工具
代码示例
s3c2410_SFR.s
这个文件作为头文件, 定义了 s3c2410 特殊功能寄存器的宏
代码语言：javascript复制;********************************************************************************************************
;* 文件: S3C2410SFR.S
;* 描述: s3c2410 特殊功能寄存器定义.(special function register)
;********************************************************************************************************/
GBLL BIG_ENDIAN__
BIG_ENDIAN__ SETL {FALSE}
;=================
; Memory control
;=================
BWSCON EQU 0x48000000 ;Bus width & wait status
BANKCON0 EQU 0x48000004 ;Boot ROM control
BANKCON1 EQU 0x48000008 ;BANK1 control
BANKCON2 EQU 0x4800000c ;BANK2 cControl
BANKCON3 EQU 0x48000010 ;BANK3 control
BANKCON4 EQU 0x48000014 ;BANK4 control
BANKCON5 EQU 0x48000018 ;BANK5 control
BANKCON6 EQU 0x4800001c ;BANK6 control
BANKCON7 EQU 0x48000020 ;BANK7 control
REFRESH EQU 0x48000024 ;DRAM/SDRAM refresh
BANKSIZE EQU 0x48000028 ;Flexible Bank Size
MRSRB6 EQU 0x4800002c ;Mode register set for SDRAM
MRSRB7 EQU 0x48000030 ;Mode register set for SDRAM
;=================
; USB Host
;=================
;=================
; INTERRUPT
;=================
SRCPND EQU 0x4a000000 ;Interrupt request status
INTMOD EQU 0x4a000004 ;Interrupt mode control
INTMSK EQU 0x4a000008 ;Interrupt mask control
PRIORITY EQU 0x4a00000c ;IRQ priority control -- May 06, 2002 SOP
INTPND EQU 0x4a000010 ;Interrupt request status
INTOFFSET EQU 0x4a000014 ;Interruot request source offset
SUSSRCPND EQU 0x4a000018 ;Sub source pending
INTSUBMSK EQU 0x4a00001c ;Interrupt sub mask
;=================
; DMA
;=================
DISRC0 EQU 0x4b000000 ;DMA 0 Initial source
DISRCC0 EQU 0x4b000004 ;DMA 0 Initial source control
DIDST0 EQU 0x4b000008 ;DMA 0 Initial Destination
DIDSTC0 EQU 0x4b00000c ;DMA 0 Initial Destination control
DCON0 EQU 0x4b000010 ;DMA 0 Control
DSTAT0 EQU 0x4b000014 ;DMA 0 Status
DCSRC0 EQU 0x4b000018 ;DMA 0 Current source
DCDST0 EQU 0x4b00001c ;DMA 0 Current destination
DMASKTRIG0 EQU 0x4b000020 ;DMA 0 Mask trigger
DISRC1 EQU 0x4b000040 ;DMA 1 Initial source
DISRCC1 EQU 0x4b000044 ;DMA 1 Initial source control
DIDST1 EQU 0x4b000048 ;DMA 1 Initial Destination
DIDSTC1 EQU 0x4b00004c ;DMA 1 Initial Destination control
DCON1 EQU 0x4b000050 ;DMA 1 Control
DSTAT1 EQU 0x4b000054 ;DMA 1 Status
DCSRC1 EQU 0x4b000058 ;DMA 1 Current source
DCDST1 EQU 0x4b00005c ;DMA 1 Current destination
DMASKTRIG1 EQU 0x4b000060 ;DMA 1 Mask trigger
DISRC2 EQU 0x4b000080 ;DMA 2 Initial source
DISRCC2 EQU 0x4b000084 ;DMA 2 Initial source control
DIDST2 EQU 0x4b000088 ;DMA 2 Initial Destination
DIDSTC2 EQU 0x4b00008c ;DMA 2 Initial Destination control
DCON2 EQU 0x4b000090 ;DMA 2 Control
DSTAT2 EQU 0x4b000094 ;DMA 2 Status
DCSRC2 EQU 0x4b000098 ;DMA 2 Current source
DCDST2 EQU 0x4b00009c ;DMA 2 Current destination
DMASKTRIG2 EQU 0x4b0000a0 ;DMA 2 Mask trigger
DISRC3 EQU 0x4b0000c0 ;DMA 3 Initial source
DISRCC3 EQU 0x4b0000c4 ;DMA 3 Initial source control
DIDST3 EQU 0x4b0000c8 ;DMA 3 Initial Destination
DIDSTC3 EQU 0x4b0000cc ;DMA 3 Initial Destination control
DCON3 EQU 0x4b0000d0 ;DMA 3 Control
DSTAT3 EQU 0x4b0000d4 ;DMA 3 Status
DCSRC3 EQU 0x4b0000d8 ;DMA 3 Current source
DCDST3 EQU 0x4b0000dc ;DMA 3 Current destination
DMASKTRIG3 EQU 0x4b0000e0 ;DMA 3 Mask trigger
;==========================
; CLOCK & POWER MANAGEMENT
;==========================
LOCKTIME EQU 0x4c000000 ;PLL lock time counter
MPLLCON EQU 0x4c000004 ;MPLL Control
UPLLCON EQU 0x4c000008 ;UPLL Control
CLKCON EQU 0x4c00000c ;Clock generator control
CLKSLOW EQU 0x4c000010 ;Slow clock control
CLKDIVN EQU 0x4c000014 ;Clock divider control
;=================
; LCD CONTROLLER
;=================
LCDCON1 EQU 0x4d000000 ;LCD control 1
LCDCON2 EQU 0x4d000004 ;LCD control 2
LCDCON3 EQU 0x4d000008 ;LCD control 3
LCDCON4 EQU 0x4d00000c ;LCD control 4
LCDCON5 EQU 0x4d000010 ;LCD control 5
LCDSADDR1 EQU 0x4d000014 ;STN/TFT Frame buffer start address 1
LCDSADDR2 EQU 0x4d000018 ;STN/TFT Frame buffer start address 2
LCDSADDR3 EQU 0x4d00001c ;STN/TFT Virtual screen address set
REDLUT EQU 0x4d000020 ;STN Red lookup table
GREENLUT EQU 0x4d000024 ;STN Green lookup table
BLUELUT EQU 0x4d000028 ;STN Blue lookup table
DITHMODE EQU 0x4d00004c ;STN Dithering mode
TPAL EQU 0x4d000050 ;TFT Temporary palette
LCDINTPND EQU 0x4d000054 ;LCD Interrupt pending
LCDSRCPND EQU 0x4d000058 ;LCD Interrupt source
LCDINTMSK EQU 0x4d00005c ;LCD Interrupt mask
LPCSEL EQU 0x4d000060 ;LPC3600 Control
;=================
; NAND flash
;=================
NFCONF EQU 0x4e000000 ;NAND Flash configuration
NFCMD EQU 0x4e000004 ;NADD Flash command
NFADDR EQU 0x4e000008 ;NAND Flash address
NFDATA EQU 0x4e00000c ;NAND Flash data
NFSTAT EQU 0x4e000010 ;NAND Flash operation status
NFECC EQU 0x4e000014 ;NAND Flash ECC
;=================
; UART
;=================
ULCON0 EQU 0x50000000 ;UART 0 Line control
UCON0 EQU 0x50000004 ;UART 0 Control
UFCON0 EQU 0x50000008 ;UART 0 FIFO control
UMCON0 EQU 0x5000000c ;UART 0 Modem control
UTRSTAT0 EQU 0x50000010 ;UART 0 Tx/Rx status
UERSTAT0 EQU 0x50000014 ;UART 0 Rx error status
UFSTAT0 EQU 0x50000018 ;UART 0 FIFO status
UMSTAT0 EQU 0x5000001c ;UART 0 Modem status
UBRDIV0 EQU 0x50000028 ;UART 0 Baud rate divisor
ULCON1 EQU 0x50004000 ;UART 1 Line control
UCON1 EQU 0x50004004 ;UART 1 Control
UFCON1 EQU 0x50004008 ;UART 1 FIFO control
UMCON1 EQU 0x5000400c ;UART 1 Modem control
UTRSTAT1 EQU 0x50004010 ;UART 1 Tx/Rx status
UERSTAT1 EQU 0x50004014 ;UART 1 Rx error status
UFSTAT1 EQU 0x50004018 ;UART 1 FIFO status
UMSTAT1 EQU 0x5000401c ;UART 1 Modem status
UBRDIV1 EQU 0x50004028 ;UART 1 Baud rate divisor
ULCON2 EQU 0x50008000 ;UART 2 Line control
UCON2 EQU 0x50008004 ;UART 2 Control
UFCON2 EQU 0x50008008 ;UART 2 FIFO control
UMCON2 EQU 0x5000800c ;UART 2 Modem control
UTRSTAT2 EQU 0x50008010 ;UART 2 Tx/Rx status
UERSTAT2 EQU 0x50008014 ;UART 2 Rx error status
UFSTAT2 EQU 0x50008018 ;UART 2 FIFO status
UMSTAT2 EQU 0x5000801c ;UART 2 Modem status
UBRDIV2 EQU 0x50008028 ;UART 2 Baud rate divisor
[ BIG_ENDIAN__
UTXH0 EQU 0x50000023 ;UART 0 Transmission Hold
URXH0 EQU 0x50000027 ;UART 0 Receive buffer
UTXH1 EQU 0x50004023 ;UART 1 Transmission Hold
URXH1 EQU 0x50004027 ;UART 1 Receive buffer
UTXH2 EQU 0x50008023 ;UART 2 Transmission Hold
URXH2 EQU 0x50008027 ;UART 2 Receive buffer
| ;Little Endian
UTXH0 EQU 0x50000020 ;UART 0 Transmission Hold
URXH0 EQU 0x50000024 ;UART 0 Receive buffer
UTXH1 EQU 0x50004020 ;UART 1 Transmission Hold
URXH1 EQU 0x50004024 ;UART 1 Receive buffer
UTXH2 EQU 0x50008020 ;UART 2 Transmission Hold
URXH2 EQU 0x50008024 ;UART 2 Receive buffer
]
;=================
; PWM TIMER
;=================
TCFG0 EQU 0x51000000 ;Timer 0 configuration
TCFG1 EQU 0x51000004 ;Timer 1 configuration
TCON EQU 0x51000008 ;Timer control
TCNTB0 EQU 0x5100000c ;Timer count buffer 0
TCMPB0 EQU 0x51000010 ;Timer compare buffer 0
TCNTO0 EQU 0x51000014 ;Timer count observation 0
TCNTB1 EQU 0x51000018 ;Timer count buffer 1
TCMPB1 EQU 0x5100001c ;Timer compare buffer 1
TCNTO1 EQU 0x51000020 ;Timer count observation 1
TCNTB2 EQU 0x51000024 ;Timer count buffer 2
TCMPB2 EQU 0x51000028 ;Timer compare buffer 2
TCNTO2 EQU 0x5100002c ;Timer count observation 2
TCNTB3 EQU 0x51000030 ;Timer count buffer 3
TCMPB3 EQU 0x51000034 ;Timer compare buffer 3
TCNTO3 EQU 0x51000038 ;Timer count observation 3
TCNTB4 EQU 0x5100003c ;Timer count buffer 4
TCNTO4 EQU 0x51000040 ;Timer count observation 4
;=================
; USB DEVICE
;=================
[ BIG_ENDIAN__
FUNC_ADDR_REG EQU 0x52000143 ;Function address
PWR_REG EQU 0x52000147 ;Power management
EP_INT_REG EQU 0x5200014b ;EP Interrupt pending and clear
USB_INT_REG EQU 0x5200015b ;USB Interrupt pending and clear
EP_INT_EN_REG EQU 0x5200015f ;Interrupt enable
USB_INT_EN_REG EQU 0x5200016f
FRAME_NUM1_REG EQU 0x52000173 ;Frame number lower byte
FRAME_NUM2_REG EQU 0x52000177 ;Frame number lower byte
INDEX_REG EQU 0x5200017b ;Register index
MAXP_REG EQU 0x52000183 ;Endpoint max packet
EP0_CSR EQU 0x52000187 ;Endpoint 0 status
IN_CSR1_REG EQU 0x52000187 ;In endpoint control status
IN_CSR2_REG EQU 0x5200018b
OUT_CSR1_REG EQU 0x52000193 ;Out endpoint control status
OUT_CSR2_REG EQU 0x52000197
OUT_FIFO_CNT1_REG EQU 0x5200019b ;Endpoint out write count
OUT_FIFO_CNT2_REG EQU 0x5200019f
EP0_FIFO EQU 0x520001c3 ;Endpoint 0 FIFO
EP1_FIFO EQU 0x520001c7 ;Endpoint 1 FIFO
EP2_FIFO EQU 0x520001cb ;Endpoint 2 FIFO
EP3_FIFO EQU 0x520001cf ;Endpoint 3 FIFO
EP4_FIFO EQU 0x520001d3 ;Endpoint 4 FIFO
EP1_DMA_CON EQU 0x52000203 ;EP1 DMA interface control
EP1_DMA_UNIT EQU 0x52000207 ;EP1 DMA Tx unit counter
EP1_DMA_FIFO EQU 0x5200020b ;EP1 DMA Tx FIFO counter
EP1_DMA_TTC_L EQU 0x5200020f ;EP1 DMA total Tx counter
EP1_DMA_TTC_M EQU 0x52000213
EP1_DMA_TTC_H EQU 0x52000217
EP2_DMA_CON EQU 0x5200021b ;EP2 DMA interface control
EP2_DMA_UNIT EQU 0x5200021f ;EP2 DMA Tx unit counter
EP2_DMA_FIFO EQU 0x52000223 ;EP2 DMA Tx FIFO counter
EP2_DMA_TTC_L EQU 0x52000227 ;EP2 DMA total Tx counter
EP2_DMA_TTC_M EQU 0x5200022b
EP2_DMA_TTC_H EQU 0x5200022f
EP3_DMA_CON EQU 0x52000243 ;EP3 DMA interface control
EP3_DMA_UNIT EQU 0x52000247 ;EP3 DMA Tx unit counter
EP3_DMA_FIFO EQU 0x5200024b ;EP3 DMA Tx FIFO counter
EP3_DMA_TTC_L EQU 0x5200024f ;EP3 DMA total Tx counter
EP3_DMA_TTC_M EQU 0x52000253
EP3_DMA_TTC_H EQU 0x52000257
EP4_DMA_CON EQU 0x5200025b ;EP4 DMA interface control
EP4_DMA_UNIT EQU 0x5200025f ;EP4 DMA Tx unit counter
EP4_DMA_FIFO EQU 0x52000263 ;EP4 DMA Tx FIFO counter
EP4_DMA_TTC_L EQU 0x52000267 ;EP4 DMA total Tx counter
EP4_DMA_TTC_M EQU 0x5200026b
EP4_DMA_TTC_H EQU 0x5200026f
| ; Little Endian
FUNC_ADDR_REG EQU 0x52000140 ;Function address
PWR_REG EQU 0x52000144 ;Power management
EP_INT_REG EQU 0x52000148 ;EP Interrupt pending and clear
USB_INT_REG EQU 0x52000158 ;USB Interrupt pending and clear
EP_INT_EN_REG EQU 0x5200015c ;Interrupt enable
USB_INT_EN_REG EQU 0x5200016c
FRAME_NUM1_REG EQU 0x52000170 ;Frame number lower byte
FRAME_NUM2_REG EQU 0x52000174 ;Frame number lower byte
INDEX_REG EQU 0x52000178 ;Register index
MAXP_REG EQU 0x52000180 ;Endpoint max packet
EP0_CSR EQU 0x52000184 ;Endpoint 0 status
IN_CSR1_REG EQU 0x52000184 ;In endpoint control status
IN_CSR2_REG EQU 0x52000188
OUT_CSR1_REG EQU 0x52000190 ;Out endpoint control status
OUT_CSR2_REG EQU 0x52000194
OUT_FIFO_CNT1_REG EQU 0x52000198 ;Endpoint out write count
OUT_FIFO_CNT2_REG EQU 0x5200019c
EP0_FIFO EQU 0x520001c0 ;Endpoint 0 FIFO
EP1_FIFO EQU 0x520001c4 ;Endpoint 1 FIFO
EP2_FIFO EQU 0x520001c8 ;Endpoint 2 FIFO
EP3_FIFO EQU 0x520001cc ;Endpoint 3 FIFO
EP4_FIFO EQU 0x520001d0 ;Endpoint 4 FIFO
EP1_DMA_CON EQU 0x52000200 ;EP1 DMA interface control
EP1_DMA_UNIT EQU 0x52000204 ;EP1 DMA Tx unit counter
EP1_DMA_FIFO EQU 0x52000208 ;EP1 DMA Tx FIFO counter
EP1_DMA_TTC_L EQU 0x5200020c ;EP1 DMA total Tx counter
EP1_DMA_TTC_M EQU 0x52000210
EP1_DMA_TTC_H EQU 0x52000214
EP2_DMA_CON EQU 0x52000218 ;EP2 DMA interface control
EP2_DMA_UNIT EQU 0x5200021c ;EP2 DMA Tx unit counter
EP2_DMA_FIFO EQU 0x52000220 ;EP2 DMA Tx FIFO counter
EP2_DMA_TTC_L EQU 0x52000224 ;EP2 DMA total Tx counter
EP2_DMA_TTC_M EQU 0x52000228
EP2_DMA_TTC_H EQU 0x5200022c
EP3_DMA_CON EQU 0x52000240 ;EP3 DMA interface control
EP3_DMA_UNIT EQU 0x52000244 ;EP3 DMA Tx unit counter
EP3_DMA_FIFO EQU 0x52000248 ;EP3 DMA Tx FIFO counter
EP3_DMA_TTC_L EQU 0x5200024c ;EP3 DMA total Tx counter
EP3_DMA_TTC_M EQU 0x52000250
EP3_DMA_TTC_H EQU 0x52000254
EP4_DMA_CON EQU 0x52000258 ;EP4 DMA interface control
EP4_DMA_UNIT EQU 0x5200025c ;EP4 DMA Tx unit counter
EP4_DMA_FIFO EQU 0x52000260 ;EP4 DMA Tx FIFO counter
EP4_DMA_TTC_L EQU 0x52000264 ;EP4 DMA total Tx counter
EP4_DMA_TTC_M EQU 0x52000268
EP4_DMA_TTC_H EQU 0x5200026c
]
;=================
; WATCH DOG TIMER
;=================
WTCON EQU 0x53000000 ;Watch-dog timer mode
WTDAT EQU 0x53000004 ;Watch-dog timer data
WTCNT EQU 0x53000008 ;Eatch-dog timer count
;=================
; IIC
;=================
IICCON EQU 0x54000000 ;IIC control
IICSTAT EQU 0x54000004 ;IIC status
IICADD EQU 0x54000008 ;IIC address
IICDS EQU 0x5400000c ;IIC data shift
;=================
; IIS
;=================
IISCON EQU 0x55000000 ;IIS Control
IISMOD EQU 0x55000004 ;IIS Mode
IISPSR EQU 0x55000008 ;IIS Prescaler
IISFCON EQU 0x5500000c ;IIS FIFO control
[ BIG_ENDIAN__
IISFIFO EQU 0x55000012 ;IIS FIFO entry
| ;Little Endian
IISFIFO EQU 0x55000010 ;IIS FIFO entry
]
;=================
; I/O PORT
;=================
GPACON EQU 0x56000000 ;Port A control
GPADAT EQU 0x56000004 ;Port A data
GPBCON EQU 0x56000010 ;Port B control
GPBDAT EQU 0x56000014 ;Port B data
GPBUP EQU 0x56000018 ;Pull-up control B
GPCCON EQU 0x56000020 ;Port C control
GPCDAT EQU 0x56000024 ;Port C data
GPCUP EQU 0x56000028 ;Pull-up control C
GPDCON EQU 0x56000030 ;Port D control
GPDDAT EQU 0x56000034 ;Port D data
GPDUP EQU 0x56000038 ;Pull-up control D
GPECON EQU 0x56000040 ;Port E control
GPEDAT EQU 0x56000044 ;Port E data
GPEUP EQU 0x56000048 ;Pull-up control E
GPFCON EQU 0x56000050 ;Port F control
GPFDAT EQU 0x56000054 ;Port F data
GPFUP EQU 0x56000058 ;Pull-up control F
GPGCON EQU 0x56000060 ;Port G control
GPGDAT EQU 0x56000064 ;Port G data
GPGUP EQU 0x56000068 ;Pull-up control G
GPHCON EQU 0x56000070 ;Port H control
GPHDAT EQU 0x56000074 ;Port H data
GPHUP EQU 0x56000078 ;Pull-up control H
MISCCR EQU 0x56000080 ;Miscellaneous control
DCKCON EQU 0x56000084 ;DCLK0/1 control
EXTINT0 EQU 0x56000088 ;External interrupt control register 0
EXTINT1 EQU 0x5600008c ;External interrupt control register 1
EXTINT2 EQU 0x56000090 ;External interrupt control register 2
EINTFLT0 EQU 0x56000094 ;Reserved
EINTFLT1 EQU 0x56000098 ;Reserved
EINTFLT2 EQU 0x5600009c ;External interrupt filter control register 2
EINTFLT3 EQU 0x560000a0 ;External interrupt filter control register 3
EINTMASK EQU 0x560000a4 ;External interrupt mask
EINTPEND EQU 0x560000a8 ;External interrupt pending
GSTATUS0 EQU 0x560000ac ;External pin status
GSTATUS1 EQU 0x560000b0 ;Chip ID(0x32410000)
GSTATUS2 EQU 0x560000b4 ;Reset type
GSTATUS3 EQU 0x560000b8 ;Saved data0(32-bit) before entering POWER_OFF mode
GSTATUS4 EQU 0x560000bc ;Saved data1(32-bit) before entering POWER_OFF mode
;=================
; RTC
;=================
[ BIG_ENDIAN__
RTCCON EQU 0x57000043 ;RTC control
TICNT EQU 0x57000047 ;Tick time count
RTCALM EQU 0x57000053 ;RTC alarm control
ALMSEC EQU 0x57000057 ;Alarm second
ALMMIN EQU 0x5700005b ;Alarm minute
ALMHOUR EQU 0x5700005f ;Alarm Hour
ALMDATE EQU 0x57000063 ;Alarm day -- May 06, 2002 SOP
ALMMON EQU 0x57000067 ;Alarm month
ALMYEAR EQU 0x5700006b ;Alarm year
RTCRST EQU 0x5700006f ;RTC round reset
BCDSEC EQU 0x57000073 ;BCD second
BCDMIN EQU 0x57000077 ;BCD minute
BCDHOUR EQU 0x5700007b ;BCD hour
BCDDATE EQU 0x5700007f ;BCD day -- May 06, 2002 SOP
BCDDAY EQU 0x57000083 ;BCD date -- May 06, 2002 SOP
BCDMON EQU 0x57000087 ;BCD month
BCDYEAR EQU 0x5700008b ;BCD year
| ;Little Endian
RTCCON EQU 0x57000040 ;RTC control
TICNT EQU 0x57000044 ;Tick time count
RTCALM EQU 0x57000050 ;RTC alarm control
ALMSEC EQU 0x57000054 ;Alarm second
ALMMIN EQU 0x57000058 ;Alarm minute
ALMHOUR EQU 0x5700005c ;Alarm Hour
ALMDATE EQU 0x57000060 ;Alarm day -- May 06, 2002 SOP
ALMMON EQU 0x57000064 ;Alarm month
ALMYEAR EQU 0x57000068 ;Alarm year
RTCRST EQU 0x5700006c ;RTC round reset
BCDSEC EQU 0x57000070 ;BCD second
BCDMIN EQU 0x57000074 ;BCD minute
BCDHOUR EQU 0x57000078 ;BCD hour
BCDDATE EQU 0x5700007c ;BCD day -- May 06, 2002 SOP
BCDDAY EQU 0x57000080 ;BCD date -- May 06, 2002 SOP
BCDMON EQU 0x57000084 ;BCD month
BCDYEAR EQU 0x57000088 ;BCD year
] ;RTC
;=================
; ADC
;=================
ADCCON EQU 0x58000000 ;ADC control
ADCTSC EQU 0x58000004 ;ADC touch screen control
ADCDLY EQU 0x58000008 ;ADC start or Interval Delay
ADCDAT0 EQU 0x5800000c ;ADC conversion data 0
ADCDAT1 EQU 0x58000010 ;ADC conversion data 1
;=================
; SPI
;=================
SPCON0 EQU 0x59000000 ;SPI0 control
SPSTA0 EQU 0x59000004 ;SPI0 status
SPPIN0 EQU 0x59000008 ;SPI0 pin control
SPPRE0 EQU 0x5900000c ;SPI0 baud rate prescaler
SPTDAT0 EQU 0x59000010 ;SPI0 Tx data
SPRDAT0 EQU 0x59000014 ;SPI0 Rx data
SPCON1 EQU 0x59000020 ;SPI1 control
SPSTA1 EQU 0x59000024 ;SPI1 status
SPPIN1 EQU 0x59000028 ;SPI1 pin control
SPPRE1 EQU 0x5900002c ;SPI1 baud rate prescaler
SPTDAT1 EQU 0x59000030 ;SPI1 Tx data
SPRDAT1 EQU 0x59000034 ;SPI1 Rx data
;=================
; SD Interface
;=================
SDICON EQU 0x5a000000 ;SDI control
SDIPRE EQU 0x5a000000 ;SDI baud rate prescaler
SDICmdArg EQU 0x5a000000 ;SDI command argument
SDICmdCon EQU 0x5a000000 ;SDI command control
SDICmdSta EQU 0x5a000000 ;SDI command status
SDIRSP0 EQU 0x5a000000 ;SDI response 0
SDIRSP1 EQU 0x5a000000 ;SDI response 1
SDIRSP2 EQU 0x5a000000 ;SDI response 2
SDIRSP3 EQU 0x5a000000 ;SDI response 3
SDIDTimer EQU 0x5a000000 ;SDI data/busy timer
SDIBSize EQU 0x5a000000 ;SDI block size
SDIDatCon EQU 0x5a000000 ;SDI data control
SDIDatCnt EQU 0x5a000000 ;SDI data remain counter
SDIDatSta EQU 0x5a000000 ;SDI data status
SDIFSTA EQU 0x5a000000 ;SDI FIFO status
SDIIntMsk EQU 0x5a000000 ;SDI interrupt mask
[ BIG_ENDIAN__
SDIDAT EQU 0x5a00003f ;SDI data
| ;Little Endian
SDIDAT EQU 0x5a00003c ;SDI data
] ;SD Interface
;/********************************************************************************************************
END
;*********************************************************************************************************/startup_head.s
