Success getting the bootloader loaded! I used the toaster oven and used a timer and set the temps approximately, it lined up perfectly. Still wouldn't work because I set of pins didn't have enough solder paste, so used the soldering iron, still wouldn't work, found a VERY small solder bridge between two pins and it worked. Thanks for everyones help. The rest of the chips look way easier.
I finally got around to getting my honey badger boards finished, I have one channel completed and working perfectly. I'm having trouble with the DC Detection boards and it's my fault. I had the polarity switched on one board from the rail voltages and I had both boards 8-pin ribbon cable from the control board installed backwards, Pin 1 was in the 7-8 position and so on.
Now when I power up with power to the boards and the 8-pin ribbon connector connected it immediately goes into DC detected and shuts down the amp. I do not have the amp outputs connected to the boards, so it's not seeing any DC.
What should I check first?
BTW, I did double check all the connectors and they are correct now.
Now when I power up with power to the boards and the 8-pin ribbon connector connected it immediately goes into DC detected and shuts down the amp. I do not have the amp outputs connected to the boards, so it's not seeing any DC.
What should I check first?
BTW, I did double check all the connectors and they are correct now.
Normally connecting the ribbon cable backwards doesn't cause any damage. It's likely best to start with checking out Q5 circuit, that's what signals a DC condition to the control board. With rail voltage and the ribbon cable connected is voltage between pin 5 and pin 7 of U1 low (around 1VDC)?
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