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Stellaris® ARM® LM3S Microcontrollers Forum
RDK-S2E Bootloader corrupted pls help
I have got RDK-S2E with me. I used it for a while and configured a static IP. After configuring static IP Configuration view in browser stopped working. So I flash programmed it using ethernet but something went wrong in between and after that I cannot find the device in Finder.exe
I think the bootloader is corrupted.I have RDK kit which has:
Kit Contents- S2E Module: Serial-to-Ethernet module- S2E-CKIT: Serial-to-Ethernet connector board- USB A to miniB cable: For powering the module- Serial cable DB9M - DB9F: For connecting module to PC serial port- Ethernet retractable cable: For connecting S2E module to the network- 20-pin to fine-pitch 10-pin ARM JTAG debug adapter- S2E-CKIT standoffs: For optional attachment to S2E-CKIT board
I do have LM Flash Programmer software and RDK-S2E software package
Do I need anything else?Please let me know steps for how can I reload bootloader and firmware using above hardware.
If you used the Ethernet boot loader to flash your board it shouldn't be possible to corrupt the boot loader itself unless there's a latent bug in there somewhere that we've not found. Most likely, the problem is either that you flashed a corrupted image (the boot loader can't tell if the image it writes is valid or not and will attempt to run it as long as the initial stack pointer and PC values at the beginning of the image appear valid. Flashing a bad image to the board can cause the boot loader to become unresponsive since it is the application itself that is responsible for passing control back to the boot loader when it detects the signal telling it to accept a new firmware download) or that the default network settings have been used and those don't work in your current network setup.
If you have flashed a corrupt or incorrect application to the board, the only way out is to use an external JTAG debugger to flash the correct image via LMFlash. Any of our existing evaluation kits can be used as a JTAG adapter. If you don't have another EK, I would recommend you buy an ek-lm3s9b90 or ek-lm3s9b92 since these are shipped with an independent debugger board that can be used to debug any other RDK. If you want to spend less, an ek-lm3s811 board will also work.
After this, you should be back up and running. If your setup parameters got corrupted, you may find that the board is still invisible, in which case you may like to reflash both the boot loader and the main image. The easiest way to do this is to use the above instructions to flash boot_eth.bin at address 0 (rather than 0x1000) and also check "Erase Entire Flash". Once the boot loader is downloaded, you can download the main code image either using the instructions above or via the Ethernet boot loader as before. This will cause all the flash-based setup parameters to return to the default values.
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