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JLink JTAG Updating



Hi

In our product we will only have a JTAG connector to the DM355.  Is it possible to download montavista along with the uboot through the JTAG.  I can not find any document on how to do this.

Any help would be greatly appreciated.

Thanks

  • you can download u-boot thru JTAG, and subsequently load Linux kernel and File System using u-boot.  This options is not very well advertised and supported because there is a much simpler and less costly approach (no need to invest in JTAG or IDE) when using the serial boot mode.

    http://wiki.davincidsp.com/index.php?title=Serial_Boot_and_Flash_Loading_Utility

    However, if you only have a JTAG, then the approach would be similar to that of DM6446.  I believe there may be some files present under DVSDK (dvsdk_1_30_00_41/PSP_XX_XX_XXX_XX/bin directory).  Unfortunately, I am not in the office to double check this at the moment, but wanted to point you in the right direction.  Let us know if you need further assistance. 

  • To confirm Juan's suggestion, there is a dvsdk_1_30_01_41\PSP_01_20_00_014\bin\dm355\NAND_programmer.out which can be used to burn the flash on the DM355, note that this is meant to be loaded by Code Composer Studio as opposed to a third party IDE.