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DLPLCR4500EVM: My device failed to initialize

Part Number: DLPLCR4500EVM
Other Parts Discussed in Thread: DLPC350

Hello,

I am currently using the DLPLCR4500, and i tried to use matlab to transforme a matrix into data that i could send to the flash memory and displayed on my device

To do so, I used the DLPC350 programmer's guide in order to find the appropriate commands, and the library hidapi that did allow me to communicate with my device through an USB cable. 

After I connect successfully with the device, my script was executing the following commands :

=> Enter programming mode (write 0x01)

=> Define start adress (write on 4 bytes)

=> Download data size (write on 4 bytes)

=> Download data (write in multiple sendings, each of them with 64 bytes, including header)

After trying to upload some times, matlab was stopping after a few sendings and just wait and crash.

I rebooted my device each time, and I look into the differents images on flash memory to see if I had anything new, but it was a fail.

Moreover, it seems that after a few inconclusives try, my device isn't initializing properly anymore. I don't ear the typical ultrasound when I plugged it, and my computer is not detecting the device

Could you please help me communicate with my device again ?

Thank you,

Thomas