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Computer System Laboratory

Computer System Laboratory. Lab2 - Environment Setup II. Experimental Goal. Learn how to use the software installed in Lab1. Transfer files to bootloader (U-Boot) and Linux on PXA270. Copy (burn) files to flash on PXA270. Environment. Host System Windows XP Build System

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Computer System Laboratory

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  1. Computer System Laboratory Lab2 - Environment Setup II

  2. Experimental Goal • Learn how to use the software installed in Lab1. • Transfer files to bootloader (U-Boot) and Linux on PXA270. • Copy (burn) files to flash on PXA270. / 20

  3. Environment • Host System • Windows XP • Build System • VirtualBox + Ubuntu 8.04 • Target System • Creator XScale PXA270 • Software • Bootloader (U-Boot) • Putty • TFTP Server • Domingo • You can download all software from RSWiki CSL Course Software / 20

  4. Hardware Checklist power supply (PXA270) PXA270 ethernet cable RS232 null cable parallel cable JTAG ICE power supply (ICE) CMOS sensor / 20

  5. Target Board Creator XSCale PXA270 Creator PreSOCes / 20

  6. Hardware Setup • Connect RS232 null cable and parallel cable to your PC. • You should connect ICE to your PC with parallel cable before turning on the PC, or connect it then reset the PC. • Connect ethernet cable to your PC. • Connect PXA270 and ICE via JTAG. ethernet cable RS232 parallel cable ICE / 20

  7. Introduction to Domingo • Domingo is an integrated development environment developed by Microtime Computer Inc.. • Domingo adopts visual project management which integrates with editor, compiler, and debugger. It lets you manage project just from a single environment. / 20

  8. Connect to PXA270 via Domingo • Step1: please refer to Lab1 to create a PXA270 project. • Step2: click “Debug” “Connect” or “connect the IDE to WINICE” to connect PXA270. • Now, you can see related register value and instructions. / 20

  9. Memory Layout of PXA270 0xa0000000 0x00000000 U-Boot 0x00080000 Linux kernel 0x00480000 0xa1080000 U-Boot (TFTP) Root Filesystem 0x01380000 0xa3f80000 U-Boot (Domingo) 0x02000000 0xa4000000 Flash RAM / 20

  10. Download Executable to PXA270 (1/3) • Step1: download u-boot.bin from our course website. • Step2: click “Debug” “Load Module ...” in Domingo. • Step3: load u-boot.bin and configure “Option” to P;a3f80000. • Step4: Click “Ok”. / 20

  11. Download Executable to PXA270 (2/3) • Step5: connect to the serial console on PXA270 via putty. • Execute the putty. • Step6: configure com port and speed. • Connection Type = Serial • Serial line = COM1 • Speed = 9600 • Step7: click “Open”. / 20

  12. Download Executable to PXA270 (3/3) • Step8: change PC value to a3f80000 in register window. • Step9: click “Debug” “Free Go”, and then you will see the message on putty. / 20

  13. Transfer File via TFTP (1/3) • Step1: execute TFTP server. • Step2: put u-boot.bin to the TFTP root virtual folder. / 20

  14. Transfer File via TFTP (2/3) • Step3: set IP address on Windows XP to configure LAN environment. • IP address = 192.168.0.10 • Netmask = 255.255.255.0 • Note that if you change to LAN IP, you mightbe not able to access WAN. Please download necessary software beforeyou change the configuration. • You can change back to DHCP after usingTFTP to reconnect to WAN. / 20

  15. Transfer File via TFTP (3/3) • Step4: check IP address on PXA270. • u-boot$ printenv • Hit any key to stop U-Boot autoboot. • If the addresses are wrong, you can use setenv to change. • Step5: execute tftp command in U-Boot to get file. • u-boot$ tftp a1080000 u-boot.bin size of u-boot.bin / 20

  16. Copy File from RAM to Flash (1/3) • Suppose we want to copy (burn) a file with 0x1a6c0 byes from RAM address 0xa1080000 to flash address 0x0, i.e., the u-boot.bin. • Step1: erase the specified range (0x0 to 0x7ffff). • Flash should be erased before copying files. • u-boot$ protect off 0 7ffff • u-boot$ erase 0 7ffff • Step2: copy the file from RAM to flash. • u-boot$ cp.b a1080000 0 1a6c0 • Step3: now, you can reset PXA270 to check the message of U-Boot. / 20

  17. Copy File from RAM to Flash (2/3) • Please refer to previous slides to copy Linux kernel and root filesystem to flash. • You can refer to the memory layout as in slide9. • Step1: download uImage (Linux kernel) and rootfs (root filesystem) from our course website. • Step2: copy uImage to flash address 0x80000. • The erased end address is 0x47ffff (32 sectors). • It will take about 3 minutes. • Step3: copy rootfs to flash address 0x480000. • The erased end address is 0x137ffff (120 sectors). • To avoid address collision, you can change RAM address to 0xa1480000 for TFTP. • It will take about 3 minutes. / 20

  18. Copy File from RAM to Flash (3/3) • Step4: now, you can reset PXA270 to check the message of Linux. / 20

  19. Transfer File via TFTP in Linux • Step1: in Linux, we also can transfer files via TFTP. • You can read the usage by executing tftp command without any arguments. • Step2: for example, if you want to get u-boot.bin from TFTP server 192.168.0.10, just type: • % tftp -g -r u-boot.bin 192.168.0.10 / 20

  20. Lab Requirement & Bonus • Show that you can copy files to the flash both in U-Boot and in Linux. • Bonus:Answer the question of lab2 on RSWiki CSL course website.Write it in your report. • Please send your report to both TAs. • Please use this title format: [CSL] G# Lab# Ver# • E.g., [CSL] G15 Lab2 Ver1 / 20

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