Close

683 Results for "Q%20%EC%95%88%EC%82%B0%EB%B8%94%EB%9E%99%EC%9E%AD%20CDDC7_C%D0%9EM%20%E2%97%86%EB%B3%B4%EB%84%88%EC%8A%A4%EB%B2%88%ED%98%B8%20B77%E2%97%86%EC%88%98%EC%9B%90%EC%9E%A5%EC%95%88%20%ED%94%84%EB%A1%9C%ED%86%A0%20%EA%B5%AC%EB%A7%A4%E0%B9%8F%ED%86%A0%ED%86%A0%ED%95%AB%ED%94%BD%E2%8F%AC%EC%98%A8%EB%9D%BC%EC%9D%B8%ED%99%A9%EA%B8%88%EC%84%B1%E0%BC%88FX%EB%A7%A4%EB%A7%A4%E2%8B%8D%EC%95%88%EC%82%B0%EB%B8%94%EB%9E%99%EC%9E%AD%EC%95%A0%EC%9A%A9%20thorough/"

  • Backplane

  • I decided that interface between ZIF-socket and host machine will be implemented with help of this antique ISA backplane manufactured in 1984 (I bought it for about $20 last month):I cut out it a little to remove part with pull-up resistors, because...
  • Slow mode counter circuit

  • There are designs on the net for this, but they all seem based on a design with a fundamental error. They asynchronously reset the 8-bit counter when it reaches 207.  This means it cycles through states 0 to 206, then very briefly becomes state...
  • Running a task at max priority

  • MethodThe idea is simple, just build the SDK in normal Dual Core configuration, but pin all tasks to the first core. We then can run a task on the second core which should (in theory) run uninterrupted by everything.But: We can't be sure nothing is running...
  • New Print Function

  • The EVE chip has a number of built in fonts. You can access them directly using the "cmd_text" command. I've added a new basic command in addition to the PRINT command - "GDPRINT"You can specify the font (#16-31), cursor position and colour, plus a string...
  • Remapping the Keyboard

  • Remapping the KeyboardGiven most of the work is done with the "basic shift logic" how hard could it be?The basic shift logic:Well much harder than expected, here is the schematic:Now many will recognise this as a PLA (Programmable Logic Array).Designing...
  • Schematic of the CPU

  • Time to fully disclose the operation of the CPU ! The complete schematics can be found in the files section, SQ1C1841.PDF. REGISTER B Let's start with the simplest part. Since the CPU has no ALU, the most important task of the CPU is moving data...
  • Optimisation

  • OptimisationI have been considering what to do next with the software PLL. Do I go the simple low pass filter and move on or spend more time optimising. It is a question of time versus likely outcomes. I have a good result, is it worth trying to make...