Hi Xiang Fu, In the meantime I had a look at the code you sent me. First I looked into the Linux code from Yuenshu Fong and I was a little disappointed because there are only the binaries of fw.bin and usbboot.bin, the equivalents of xburst_stage1 and xburst_stage2. Then however I inspected the Windows code. I first tried to load the GUI with my Visual Studio but this did not work because they use an older version of the program and there seem to be some conversion issues. I could get hold of the older version of Visual Studio also but before doing so I decided to look for the sources of fw.bin and usbboot.bin, which are in fact added into the Windows package. It took me just a minute or so to understand that this contained the key to solving my problems with access to the Ronzi A3 flash. In fact, this code has additional commands accessing flash via a mmc interface in addition to the nandflash code. I compiled the code and wanted to run it with your usbboot program on Linux, but there are incompatibilities. The load address for stage 1 has changed (this problem is solved) and stage 2 does not boot as expected. For the moment I don't understand the reason. However I managed to add the mmc code to xburst_stage2 and this way round everything seems to work out. The system boots fine and I can see my debugging messages using the debug facility I had added to your code. I added a command sdinit and sdquery to usbboot and I can see that the SD card is in fact found. This means that I am on the right track. I will need some more time for testing but now I am very confident that within a month or 2 I should be able to get the system going and to read and write the system flash on my Ronzi A3. Once I have finished I will send you the code which has of course seen very drastic changes. Cheers and "Happy new year!" to you. Uli
-----Original Message----- From: Xiangfu Liu [mailto:[email protected]] Sent: Friday, December 23, 2011 6:05 PM To: English Qi Hardware mailing list - support, developers, use cases and fun Cc: Uli Raich Subject: latest Windows version usbboot source code include jz4760/jz4770 Hi by asking Ingenic, they send the latest windows version xburst-tools source code to me. they only support Windows system. but that will some help on your jz4760 cpu. here is the tar ball. http://downloads.openmobilefree.net/Ingneic/xburst-tools-windows/nand_card_tools.tar.bz2 BTW: one of Ingenic people. named 'Yuenshu Fong' have create a Linux version usbboot for jz4770. here is the source code: http://downloads.openmobilefree.net/Ingneic/xburst-tools-linux/ingenic_boot_v1.1.tar.bz2 On 08/16/2011 02:24 PM, Uli Raich wrote: > Hi, > > I am trying to adapt the Linux version of usbboot top the Ronzi A3. > While most of the features now work, I still have problems to access > the nand flash. I finally disassembled the device and had a look at > the signals on the flash chip. I found that none of the interface > signals arrive there. When I try direct GPIO, programming certain > lines as output and looking at the signals on the flash chip, I have > the same problem. Does anybody know, how the nand flash is connected > to the jz4760 CPU? It looks like I have to enable something (a mux?) > to get my signals through to the flash. > > Any help would be largely appreciated. > > Thanks > > Uli _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
