好扯淡的2416 处理器，手册写得好猥琐啊。

来源：互联网发布：ie8 json未定义编辑：程序博客网时间：2024/04/30 20:09

拿到2416 机器，于是就开始例行流程，开始看看2416 的bootloader以及手册，熟悉一下整体架构，看了内存映射表，发现内存起始地址是

0x30000000 ，可是手册怎么也找不到，真奇怪。

g_oalAddressTable
        ;64M DDR-II
        DCD     0x80000000, , 64      ; 64 MB DRAM BANK 6
        ;128M DDR-II
        ;DCD     0x80000000, 0x30000000, 128      ; 128 MB DRAM BANK 6

       DCD     0x84000000, 0x10000000, 32      ; 32 MB SROM(SRAM/ROM) BANK 2
       DCD     0x86000000, 0x18000000, 32      ; 32 MB SROM(SRAM/ROM) BANK 3
       DCD     0x88000000, 0x20000000, 32      ; 32 MB SROM(SRAM/ROM) BANK 4
       DCD     0x8A000000, 0x28000000, 32      ; 32 MB SROM(SRAM/ROM) BANK 5
       ; DCD     0x8C000000, 0x08000000, 32      ; 32 MB SROM(SRAM/ROM) BANK 1

DCD     0x90800000, 0x48000000, 1      ; SDRAM control register
DCD     0x90900000, 0x48800000, 1      ; EBI control register
DCD     0x90A00000, 0x49000000, 1      ; USB Host control register
DCD     0x90B00000, 0x49800000, 1      ; USB Device control register
DCD     0x90C00000, 0x4A000000, 1      ; Interrupt control register
DCD     0x90D00000, 0x4A800000, 1      ; HS-MMC control register

DCD 0x90E00000, 0x4B000000, 1 ; DMA0~7 control register

DCD     0x90F00000, 0x4B800000, 1      ; CF Card control register
DCD     0x91000000, 0x4C000000, 1      ; SYSCON register
DCD     0x91100000, 0x4C800000, 1      ; TFT-LCD control register
DCD     0x91200000, 0x4D000000, 1      ; STN-LCD control register
DCD     0x91300000, 0x4D408000, 1      ; 2D
DCD     0x91400000, 0x4D800000, 1      ; Camera control register
DCD     0x91500000, 0x4E000000, 1      ; NAND flash control regist
DCD     0x91600000, 0x4E800000, 1      ; Matrix control register
DCD     0x91700000, 0x4F000000, 1      ; SSMC control register
DCD     0x91800000, 0x4F800000, 1      ; TIC control register
DCD     0x91900000, 0x50000000, 1      ; UART control register
DCD     0x91A00000, 0x51000000, 1      ; PWM control register
DCD     0x91B00000, 0x52000000, 1      ; HS-SPI and SPI0 control register
DCD     0x91C00000, 0x53000000, 1      ; WDT control register
DCD     0x91D00000, 0x54000000, 1      ; IIC control register
DCD     0x92000000, 0x55000000, 1      ; IIS control register
DCD     0x92100000, 0x56000000, 1      ; I/O Port register
DCD     0x92200000, 0x57000000, 1      ; RTC Port register
DCD     0x92300000, 0x58000000, 1      ; TSADC Port register
DCD     0x92400000, 0x59000000, 1      ; SPI Port register
DCD     0x92500000, 0x5A000000, 1      ; SDI Port register
DCD     0x92600000, 0x5B000000, 1      ; AC97 Port register
DCD     0x92700000, 0x5C000000, 1      ; PCM 0 ~ 1 control register
DCD     0x92800000, 0x5D000000, 1      ; GPS control register
DCD     0x92900000, 0x5E000000, 1      ; CHIP ID control register

DCD 0x93000000, 0x00000000, 32 ; 32 MB SROM(SRAM/ROM) BANK 0
DCD 0x00000000, 0x00000000, 0 ; end of table

手册很难找，原来在手册是这么写的0x3000_0000,太郁闷了。

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END

2416 手册写得比2440 简陋，比6410 难懂，继续看。

现在要看看一些小东西

这个是接在nSCS0 的，我的现在内存不稳定，多少和驱动能力有些关系，看看先。
3.18 DSCn (Drive Strength Control)
DSC_nSCS0 [11:10] nSCS0 drive strength.
00 = 4.9mA            01 = 9.8mA
10 = 14.8mA          11 = 19.7mA
默认是10 = 14.8mA   看看配置是否是这个，如果不是明天改大试试。