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May i use 74HC series instead 74LS? I'm getting a green screen
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Most 74ls serial chips have many active-low control inputs, and you can optimize the circuit to bring it closer to actual implementation.
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How critical is the logic family used in the Amiga db23 to VGA adapter? I had an 74LS14, not 74HCT14, and made this adapter. It works but I wonder if the logic family choice is critical to prevent any…
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In these days, the 74** series chips have been no place in the market, because their speeds are too low. The 74hc series have take their place, however the names in logisims are still 74xx. Meanwhile,…
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**Is your feature request related to a problem? Please describe.**
Not having the ability to invert output makes implementing a 3.3V->5V level shifter more difficult.
In transistor logic, an in…
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(Note: I suspect the issue I'm having have to do with fake ICs, especially fake Rockwell 65C02 / 65C22).
When I power on the board, usually does nothing, not even a black screen. It's totally out o…
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Hi,
In your main.c, you poll PORT D2 for rising edge to collect the 8 bits of pixel data. This is your PCLK. This clock is running at 8 Mhz - so essentially you are producing 64 Mbits per second or 8…
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# 確認ソフト
バグりやすい順
+ Bad Apple!!!
+ ロマンシング東方
+ FF6-T
+ バハムートラグーン英訳
+ 基板No1で動かないが、おそらくSRAMが足りない
+ DQ3 KMix
# ケーブル長
+ HiROM Cart 1号:15cm
+ FF6-TのOPは起動する、それ以外はパスコン付きでも動作せず
+ SRAM 256kb…
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Hi there,
Not an issue as such... Can this project use the 74HC595 shift registers as an alternative shift register? I have about 20 of those, but no 74LS164. Thanks :)
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Im very new to VHDL
but i dont know how to use this!
have you got a basic setup i could use?
id like to use 4 switched, 1 and 2 to increase the address, and 3 and 4 to set a value
i have 4 …