Invalid Firmware Image?

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  • January 30, 2017 at 4:57 AM #11025
    Fnnrqwin
    Participant

      Hi,

      I’m attempting to update from 0.73 to 0.75 using a Sandisk 2GB MicroSD card. I’ve followed the Wiki’s instructions, and am using Win32DiskImager, which I’ve used in the past with no problems. Anyway, I have a pre-built system, so I’m not sure why it would give me this error. I’ve tried updating to 0.74 instead to see if it was a problem with the .bin, but they doesn’t work either.

      January 30, 2017 at 5:25 PM #11026
      Harrumph
      Participant

        Have you formatted to FAT32 first?
        Have you checked the card is properly inserted in the OSSC?
        Are you getting any error message?

        January 30, 2017 at 6:07 PM #11027
        marqs
        Participant

          Formatting beforehand does not make difference as Win32DiskImager overwrites partition table. “Invalid image” message on character LCD means that first 4 bytes read raw from a detected SD card do not match the firmware image. Usually that means that there’s been an error writing the image to card, but in theory it could be caused by a hardware issue too. I’d first test writing the image via another computer before considering other options (jtag update / return).

          January 31, 2017 at 4:07 AM #11038
          awe444
          Participant

            I also encountered “Invalid Image” under the exact same conditions the original post had (same SD card brand, same firmware version, WinDisk32Imager, etc.) Tried re-flashing the FW image onto the card multiple times and still got the error. Finally I just tried selecting the “Fw. update” menu option over and over again without touching anything, and after about 7 or 8 failed attempts it finally accepted the image and completed the update successfully.

            Looking at the OSSC’s source code (/software/sys_controller/ossc/firmware.c) I see there’s a variable FW_UPDATE_RETRIES which is set to 3. Was the value of 3 chosen because failed reads were anticipated? If so, could setting it to a higher value make the updates proceed with a higher success rate?

            January 31, 2017 at 5:16 AM #11039
            Mythic
            Participant

              ^ Was exactly how I got mine to work. I just kept hitting update then it worked.

              January 31, 2017 at 11:39 PM #11047
              marqs
              Participant

                FW_UPDATE_RETRIES only controls how many retries update procedure is given if verification fails (e.g. some bits are not correctly written to flash) – increasing it does not help on card detection. Problems in detection are most likely caused by Altera’s less-than-stellar SD card controller which was replaced with a more compatible one in fw 0.74.

                February 12, 2017 at 2:00 AM #11150
                Fnnrqwin
                Participant

                  I could have sworn I had responded to this, but just constantly retrying eventually worked. Thank you!

                  February 12, 2017 at 10:58 PM #11181
                  awe444
                  Participant

                    Updating from 0.75 to 0.76 worked on the first attempt without any problems at all. So either I was very lucky this time, or the updated SD card controller (from 0.74) has indeed fixed the issue encountered previously when updating from 0.73 to 0.75.

                    March 1, 2018 at 10:29 PM #19742
                    Retrorunner
                    Participant

                      I am not able to install the new test image from borti:

                      ossc_0.80beta-bl_test.bin
                      https://github.com/borti4938/ossc/tree/dev_lcdbl/fw_build

                      because of the “invalid image” message. I tried several times to trigger the update. Tried different micro-sdcards same result. When using older images (also on bortis page ossc_0.79-bl_test.bin) it works on the first attempt. Any idea why its not working with the image: ossc_0.80beta-bl_test.bin ?

                      edit: wiped the micro sd card, formated with 32fat, used win32disk imager and same result.
                      edit: ok something wrong with the image after/when downloading

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