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900 Results for "8-bit cpu"

  • 68030 prototype

  • This is the 68030 board I'm working on. It has been a long time wish to make something with either 68020/68851/68881 or 68030/68882 combo. At the end I started to wire a 68030 with the following:MC68030 MC68882512Kb EEPROM AT29C040A on 8 bit...
  • Atari Keyboard Controller adapter for MSX (2)

  • For a matter of symmetry and sake of schematic drawing I have rearranged the wiring, so the MSX pin 8, a push-pull output became an open collector with pull-up resistor, then the pins/rows assignment became ROW /  (Keys)MSX Joystick PinKeyb. Contr....
  • Getting Started With PIC16F877a

  • PIC16F877a is a low-power microcontroller device in the 16-pin family of PIC® microcontrollers. It features an enhanced instruction set, greater program space and data memory space than its predecessor, and on-chip peripherals to simplify system...
  • Programmable Logic Device Primer

  • This page started as a real world test of an idea sprang from a thread on Stack. I'll be adding bits of content here, for many months. The focus of the content will be GAL type devices, since I see them as a good starting point in the wide world of PLDs....
  • A little forth music...

  • This was too fun not to share.  Today I was chipping away at t problem that I've been at for a few days, and it finally came together. The start, was the need to have a way of assigning the channel for ADC on the STM8L in stm8ef.  This has...
  • Lies in HDMI specifications

  • 1. Our equipment fully* supports** the HDMI standard***HDMI is the most basic standard for digital video transmission. "Acceptable" quality is HDMI 1.4, "good" quality is HDMI 2.0. All standards above 2.0 are redundant, at least for now. Also, HDMI at...
  • The 7 segment decoder, done wrong.

  • Hi,   I'm Rue Mohr, you might know me from such places as the internet, the information superhighway, or the world wide web. Today I'd like to tell you about an adventure in optimization of a 7 segment decoder. (7 segment display with the highly...
  • Lions vs Ben Heck

  • The fight to make a CAD model leaves the lion kingdom feeling a bit under accomplished, compared to Ben Heck. Although his show only covers baby projects, he obviously is very skilled in CAD tools, electronic design tools, FPGA programming tools, embedded...
  • How to make kids interested in programming

  • Absolutely hated any higher level language than assembly as a kid. Programming was only a means to draw fast graphics, rather than an end or a way to make money as taught nowadays.  The outcome of the act was the key. Assembly language was the only...
  • AscetiCore ⋅ Monadic direct word-sized

  • flow control instructions (mirroring the corresponding MIW instructions) Opcode Mnemonic Description Flags 0b000000 CALL reg Absolute callLR ← IP, IP ←reg no effect 0b000001 CR regCALL IP+reg Relative callLR ← IP, IP ← IP +reg...
  • The First Open Source RISC-V Microcontroller

  • Hackaday reports that OnChip launched a Crowd Supply campaign:mRISC-V: The First Open Source RISC-V MicrocontrollerNow, this is finally changing. OnChip, a startup from a group of doctoral students at the Universidad Industrial de Santander in Colombia,...
  • Electronics Goldmine Assortments

  • Box of ICs (>50)19135; $10.007x TL7705ACP (TI) Supply Voltage Supervisor9x HCF4073BE (SGS) 3x 3-Input AND Gates2x HEF40193BP (Philips) 4-Bit Binary Up/Down Counter1x 74HC240N (Philips) 8-Channel Inverting Buffer, 3-State16x MC1455P1 (Motorola) 555 Timer...
  • Myths and legends of PIC microcontrollers

  • I built this list, because sometimes I'm bored enough to write the same things again and again, so I have stable place to link. 1) PICs require awkward proprietary tools based on Windows, so you can't use it on Linux or Mac. Nope, see points 2 and 3....
  • Interrupt driven MSX tape read

  • I've been following athread on MSX.org to add recording functionality to Casduino. So far the tape reading is being done using sampling / signal processing but the real bottleneck seems to be the latency of the SD card writing. Worth to notice that the...
  • eMMC to SD Card Adapter

  • From the Intelligent Toasters blog:Retro CPC Dongle – Part 18I’ve been working on, replacing the NAND raw flash with an eMMC chip on the CPC2.0 board.I wrote about raw flash and the challenges of writing a flash translation later in part 16 of this series....