利用CCS和DM814x Flash烧写工具烧写Nand Flash

新得到的DM8148开发板，NandFlash里面似乎是空的。向Nand Flash烧写程序共需要三个步骤：

1.     利用Nand Flash烧写工具烧写第一阶段u-boot；

2.     在第一阶段u-boot中利用loadb命令烧写第二阶段u-boot；

3.     在第二阶段u-boot中利用tftp烧写操作系统系统内核和文件系统。

这里仅记录Nand Flash烧写第一阶段u-boot的方法。

 

操作系统: Windows XP Home Edition(32-bit), Version 2002, Service Pack 3

CCS软件：CCS v5.1.1.00031

开发板型号：TMDXEVM8148（PG2.1）

 

1.     硬件准备

（1）    连接电源线；

（2）    连接JTAG仿真器（Emulator），板上位置J11，仿真器型号Ashling Opella-XDS100v2，仿真器另一端线路插入电脑USB接口；

（3）    开发板上S1所有开关拨到“0”位置（OFF），即图中S1所有开关拨到下方；

（4）    开发板上SW2开关（控制NAND 和SPI Flash）中，Nand开关拨到“ON”位置，即下图中左侧开关拨到上方；

（5）    开发板上电。

 

2.     启动CCS

（1）    启动Code Composer Studio；

（2）    选择"View -> Target Configurations"；

（3）    在窗口右上角点击 "New Target Configuration File"按钮，并为新的配置文件命名（比如：ti814x_usb.ccxml）并单击“Finish”；

（4）    在设置窗口中，“connection”=“Texas Instruments XDS100v2 USB Emulator”，“Board orDevice”=“TI814x”；

（5）    保存配置内容，下一次就可以直接调用这个配置文件；

（6）    在CCS中选择“Window --> Open Perspective --> CCS Debug”，出现调试界面；

（7）    选择“View -> Target Configurations”，展开"UserDefined"配置目录，右键单击刚刚设置好的配置文件，并选择"Launch Selected Configuration"；

（8）    在Debug窗口中，右键点击最下边的“Texas Instruments XDS100v2 USB Emulator _0/Cortex A8”模块（此时状态为Disconnected：Unknown），选择"ConnectTarget";这时模块状态变为Suspended；

（9）    选择“View -> Registers”,在弹出的Registers窗口中找到“Core Register ->CPSR”，将其中的“T”域设置为0，这样就将ARM状态由“Thumb”设置为了“ARM”模式。

 

3.     装载GEL文件

烧写工具需要GEL文件来初始化PLL，DDR，片上Ram和GPMC。

（1）    确认GEL文件，这里使用的开发板版本为PG2.1，如果GEL文件错误，可能无法读出Nand Flash ID，此处使用的是开发板附件光盘中附带的GEL文件：PG2.1_DM814X_20Mhz_Si.gel.gel；

（2）    在CCSIDE中选择“Tools --> GEL Files”，在弹出的“GEL Files（Cortex A8）”窗口中单击右键，选择“LoadGEL…”，打开PG2.1_DM814X_20Mhz_Si.gel.gel文件；

（3）    在“Scripts”下拉菜单中选择“Scripts->PG 2.0 DM814x->ALL_ADPLL_CLOCKS_ENABLE_API”，设置PLL；

（4）    选择“Scripts->PG 2.0 DM814x->DDR3_EMIF0_EMIF1_Config_Full_Leveling”，设置DDR；

（5）    选择“Scripts->DM814x System Initialization->GPMC_CLOCKENABLE”，设置GPMC。

打印调试信息如下：

CortexA8: Output:  ****  DM814X2 ALL ADPLL INIT IS In Progress ......... CortexA8: GEL Output:  MODENA ADPLLJ CLKOUT  value is  = 600 CortexA8: GEL Output:  L3  ADPLLJ CLKOUT  value is  = 200 CortexA8: GEL Output:  DSP ADPLLJ CLKOUT  value is  = 500 CortexA8: GEL Output:  DSS ADPLLJ CLKOUT  value is  = 200 CortexA8: GEL Output:  ISS ADPLLJ CLKOUT  value is  = 400 CortexA8: GEL Output:  IVA ADPLLJ CLKOUT  value is  = 266 CortexA8: GEL Output:  SGX ADPLLJ CLKOUT  value is  = 200 CortexA8: GEL Output:  USB ADPLLJ CLKOUT  value is  = 192 CortexA8: GEL Output:  VIDEO-0 ADPLLJ CLKOUT  value is  = 54 CortexA8: GEL Output:  VIDEO-1 ADPLLJ CLKOUT  value is  = 148 CortexA8: GEL Output:  VIDEO-2/HDMI ADPLLJ CLKOUT  value is  = 148 CortexA8: GEL Output:  DDR ADPLLJ CLKOUT  value is  = 333 CortexA8: GEL Output:  AUDIO ADPLLJ CLKOUT  value is  = 200 CortexA8: Output:  **** SATA PLL INIT IS In Progress Please wait ..... CortexA8: Output:  **** SATA PLL INIT IS In DONE ***************** CortexA8: GEL Output: exiting pll setup CortexA8: GEL Output: CONFIGURE PRCM CLOCKS of EMAC in progress CortexA8: GEL Output: PRCM CLOCKS of EMAC  is complete CortexA8: Output:  ****  DM814X2 ALL ADPLL INIT IS  Done ************** CortexA8: Output:  ****  DM814X2 DDR3 Full_leveling EMIF0 and EMIF1 configuration in progress......... CortexA8: Output: Busy reading back DMM registers Please wait ...CortexA8: Output: DMM register read successfully  CortexA8: Output:  ****  DM814X2 DDR3 Full_leveling EMIF0 and EMIF1 configuration is DONE **** CortexA8: Output: Enabling Clock for GPMC is in Progress, Please wait.....  CortexA8: Output: GPMC Clock is ActiveCortexA8: GEL Output: Reg default Value: 0x00040000 CortexA8: Output: PINMUX configuration is in Progress, Please wait.....  CortexA8: GEL Output: Reg written value: 0x00040001 CortexA8: Output: Pinmux is configured successfully !!!CortexA8: Output: Wait .... busy writing memory CortexA8: Output: GPMC Memory write failed, Try again ...

注意：虽然最后显示有操作失败，但是GPMC时钟已打开，失败内容不影响后面的操作。

 

4.     烧写Flash

（1）    选择“Run -> Load -> Load Program”并找到“nand-flash-writer.out”文件，打开运行；

（2）    选择“Run->Resume”重新启动；

（3）    在提示下列菜单后输入1，烧写Flash;

Choose your operation Enter 1 ---> To Flash an Image Enter 2 ---> To ERASE the whole NAND Enter 3 ---> To EXIT 

（4）    在提示输入文件路径时，输入完整的第一阶段u-boot文件（如：c:\u-boot_DM814X_TI_EVM.min.nand）;

Enter image file path

（5）    在提示输入偏移量时输入0，意为从Flash开头位置烧写，注意这里是16进制数；

Enter offset (in hex): 

（6）    在提示纠错码时选择1，总是为U-Boot选择BCH 8，因为ROM代码就是使用BCH 8纠错；

   Choose the ECC scheme from given options Enter 1 ---> BCH 8 bitEnter 2 ---> HAMEnter 3 ---> T0 EXITPlease enter ECC scheme type :

（7）    如果显示以下信息，说明烧写成功了。

[CortexA8] Welcome to CCS Nand Flash Utility [CortexA8] [CortexA8] [CortexA8] Choose your operation [CortexA8] Enter 1 ---> To Flash an Image[CortexA8] Enter 2 ---> To ERASE the whole NAND [CortexA8] Enter 3 ---> To EXIT1[CortexA8] Enter image file path c:\u-boot_DM814X_TI_EVM.min.nand[CortexA8] Enter offset (in hex): 0[CortexA8] Choose the ECC scheme from given options :[CortexA8] Enter 1 ---> BCH 8 bit [CortexA8] Enter 2 ---> HAM  [CortexA8] Enter 3 ---> T0 EXIT[CortexA8] Please enter ECC scheme type :1[CortexA8] Starting NETRA NAND writer[CortexA8] [CortexA8] The NAND Flash is ONFI compatible [CortexA8]  [CortexA8] [CortexA8] ----------------------[CortexA8]   NAND FLASH DETAILS[CortexA8] ----------------------[CortexA8]  Device ID : 0xca[CortexA8]  Manufacture ID : 0x2c[CortexA8]  Page Size : 2048 Bytes[CortexA8]  Spare Size : 64 Bytes[CortexA8]  Pages_Per_Block : 64[CortexA8]  Number_of_Blocks : 2048[CortexA8]  Device_width : 2 Byte[CortexA8]  DeviceSize : 256 MB[CortexA8] [CortexA8]  Setting the ECC scheme[CortexA8]   Set the BCH 8 bit ECC scheme  .... done[CortexA8] Preparing to Flash image .... [CortexA8] Opening image ... done. [CortexA8] Erasing Required Blocks [start = 0, count = 1]...[CortexA8] Done[CortexA8] Flashing image ... [CortexA8] Number of blocks needed for header and data: 0x1[CortexA8] Attempting to start write in block number 0x0.[CortexA8] Writing image data to Block 0 Page0x0[CortexA8] Writing image data to Block 0 Page0x1[CortexA8] Writing image data to Block 0 Page0x2[CortexA8] Writing image data to Block 0 Page0x3[CortexA8] Writing image data to Block 0 Page0x4[CortexA8] Writing image data to Block 0 Page0x5[CortexA8] Writing image data to Block 0 Page0x6[CortexA8] Writing image data to Block 0 Page0x7[CortexA8] Writing image data to Block 0 Page0x8[CortexA8] Writing image data to Block 0 Page0x9[CortexA8] Writing image data to Block 0 Page0xa[CortexA8] Writing image data to Block 0 Page0xb[CortexA8] Writing image data to Block 0 Page0xc[CortexA8] Writing image data to Block 0 Page0xd[CortexA8] Writing image data to Block 0 Page0xe[CortexA8] Writing image data to Block 0 Page0xf[CortexA8] Writing image data to Block 0 Page0x10[CortexA8] Writing image data to Block 0 Page0x11[CortexA8] Writing image data to Block 0 Page0x12[CortexA8] Writing image data to Block 0 Page0x13[CortexA8] Writing image data to Block 0 Page0x14[CortexA8] Writing image data to Block 0 Page0x15[CortexA8] Writing image data to Block 0 Page0x16[CortexA8] Writing image data to Block 0 Page0x17[CortexA8] Writing image data to Block 0 Page0x18[CortexA8] Writing image data to Block 0 Page0x19[CortexA8] Writing image data to Block 0 Page0x1a[CortexA8] Writing image data to Block 0 Page0x1b[CortexA8] Writing image data to Block 0 Page0x1c[CortexA8] Writing image data to Block 0 Page0x1d[CortexA8] Writing image data to Block 0 Page0x1e[CortexA8] Writing image data to Block 0 Page0x1f[CortexA8] Writing image data to Block 0 Page0x20[CortexA8] Writing image data to Block 0 Page0x21[CortexA8] Writing image data to Block 0 Page0x22[CortexA8] Writing image data to Block 0 Page0x23[CortexA8] Writing image data to Block 0 Page0x24[CortexA8] Writing image data to Block 0 Page0x25[CortexA8] Writing image data to Block 0 Page0x26[CortexA8] Writing image data to Block 0 Page0x27[CortexA8] Writing image data to Block 0 Page0x28[CortexA8] Writing image data to Block 0 Page0x29[CortexA8] Writing image data to Block 0 Page0x2a[CortexA8] Writing image data to Block 0 Page0x2b[CortexA8] Writing image data to Block 0 Page0x2c[CortexA8] Writing image data to Block 0 Page0x2d[CortexA8] Writing image data to Block 0 Page0x2e[CortexA8] Writing image data to Block 0 Page0x2f[CortexA8] Writing image data to Block 0 Page0x30[CortexA8] Writing image data to Block 0 Page0x31[CortexA8] Writing image data to Block 0 Page0x32[CortexA8] Writing image data to Block 0 Page0x33[CortexA8] Writing image data to Block 0 Page0x34[CortexA8] Writing image data to Block 0 Page0x35[CortexA8] Writing image data to Block 0 Page0x36[CortexA8] Application is successfully flashed[CortexA8] [CortexA8] [CortexA8] NAND flashing successful!

（8）    开发板关电，断开仿真器连接。

参考资料：

1.     http://processors.wiki.ti.com/index.php/DM814x_AM387x_PSP_Flashing_Tools_Guide#Starting_CCS

除了Nand Flash的烧写，NOR和SPI Flash的烧写也可参考这个资料。