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Showing results for tags 'wing'.
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Last night I ported my unfinished MC6847 emulator Verilog code from a Altera EPC4 board to my Papilio One. I have the small VGA wing, which has: hsync; vsync; and 2 bits each for R, G and B. When I found the schematic I was surprised to see that both resistors were the same value, which I believe will only allow my 3 levels of luminance for each colour, so only 27 colours in total. Why not use two different values for the resistors, similar to the scheme used on the other MegaWings? To be honest it isn't an issue for this particular project. I know that I could replace one of the resistors, but I am unable to work with that tiny size of SMD resistor.
Finally at home. So I took some minutes to assemble one of my new wings - a very simple design for ESP8266, so you can use it with Papilio and ZPUino. Software and specialized hardware will be prepared in meantime. If we feel comfortable about this design we will share with you all details. For now, just a bunch of photos:
Hello. I'm working on a MAX5556 Audio DAC Wing and I thought I should share it here . It (obviously) has a MAX5556 Stereo DAC at its core, with an I2S-compatible interface and up to 50KHz sampling rate (perfect for standard 44.1 and 48 KHz sampling rates) and a resolution of 16 and 24 bits. The board does not contain any output buffer as I wanted the board to be as small as possible. It only has the MAX5556, a couple of passives and a 3.5mm stereo jack. I'll leave you with the schematics and a render of the board. Any criticism is well accepted I'm also prototyping a Megawing with an ADC, a DAC and an Ethernet controller to stream audio over ethernet. Schematic.pdf