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[FAQ] DLPC3430: Corrupted Flash Debug

Part Number: DLPC3430
Other Parts Discussed in Thread: DLPDLC-GUI, DLP4710EVM-LC

Corrupted flash images can occur when a flash process through the GUI is interrupted or otherwise fails. An attempt to re-flash a DLP Pico EVM or system. The following process can be used to correct or to rule out the possibility of a corrupted image issue from preventing the system from booting.

  1. If not already installed, please download the DLPDLC-GUI available here.
    1. This GUI, the Light Control GUI, should be used even in in cases of troubleshooting a display chipset. The Light Control GUI is more agnostic as to what platform it is targeting. This will allow a more seamless flash in the case that the software is not able to recognize the EVM.
  2. Connect your EVM to power and connect to your PC without switching the ON or PROJ_ON switch
    1. The EVM SPI flash devices are typically powered by standby power, so switching the system on should be unnecessary.
  3. Open the Light Control DLP EVM GUI and select an EVM that most closely resembles the platform that is being addressed.
    2. In the case of a dual-ASIC configuration, such as the DLPDLCR4710EVM, it is recommended that the DLP4710EVM-LC be selected as it it above. This will instruct the GUI to target both controllers.
  4. In the Firmware tab select the "Flash Firmware" box, navigate to the desired firmware image, and click "Start Update.
  5. Once the flash process is complete for all controllers, restart the EVM to check if the issue has been corrected.

If the issue persists after this procedure and the cause is still believed to be a corrupted flash image, or if the flash process fails to complete, please refer to the SPI Flash Device with SOIC Clip Guide E2E FAQ for next steps.