I’ve recently spent some time modifying a Logitech C920 webcam for PCB inspection and soldering. Head over to the page for project pictures, links to the various components, tricky gotchas I found during...
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Cirrus Logic CS4335 DAC problems finally identified and fixed.
I had some assistance in fixing this problem. My always helpful friend Brian from Canada as well as some help from Steve @ the Audacity forums contributed to solving the problem. They filled in some blanks for me, and...
Trying to debug my design for an Audio DAC Cirrus Logic CS4334
I purchased a CS4334 to eventually use as an Audio DAC for the badge computer. I’ve never worked with DACs before, and my knowledge of audio is somewhat limited. This audio DAC is a Cirrus Logic CS4334 with...
Still debugging the attachment of User Flash Memory to the J68….
So if I take my working UFM avalon-mm Master controller (which if you recall, connects to the Altera Flash Memory IP core), and attempt to attach it to the J68, the J68 no longer boots the ROM monitor code. Since...
Reverse engineering the LCD interface
So I was having trouble getting the LCD working initially, so I ended up probing a working HDMI to LCD converter board sold by adafruit. You see, this board was driving my LCD just fine, but my FPGA couldn’t do...
Working on the User Flash Memory
So the Altera Max 10 FPGA we’re using has 256kbits of User Flash Memory. This is non-volatile memory that is built into the actual FPGA itself. This means you don’t need any external memory to get the FPGA...
