Ok so I have been having trouble flashing to the spark core DFU. A couple days ago I was able to do it with the online spark IDE. But for some reason now, whenever I am trying to flash to the DFU I get problems. I have installed the drivers for the DFU with Zadig (with driver settings: libusbK (v188.8.131.52)). I have tried running this command in the command prompt: dfu-utill --list. It then gives me this:
Cannot open DFU device 0a5c:21d7
Found DFU: [1d50:607f] ver=0200, devnum=4, cfg=1, intf=0, alt=1, name="@SPI Flash SST25x/0x00000000/51204Kg", serial=“6D80416B5550"
Found DFU: [1d50:607f] ver=0200, devnum=4, cfg=1, intf=0, alt=0, name=”@Internal Flash /0x08000000/20001Ka,108*001Kg", serial=“6D80416B5550”
I just don’t understand why it says Cannot open DFU device 0a5c:21d7
I have also tried running a program in NetBeans and I have been getting this:
File downloaded successfully
Transitioning to dfuMANIFEST state
No valid DFU suffix signature
Warning: File has no DFU suffix
Error during download get_status
read from master failed
: Input/output error
RUN FAILED (exit value 1, total time: 14s)
Why is this happening? Any help would be greatly appreciated. Thank you!