Intel 8088 16-bit computer on a breadboard.
In this video you can join me to see how I:
- add a new chip (74244) with 8 buffers to simulate the PIC's response to the interrupt request (without actually using the 8259)
- write a new programme with a new interrupt handler for the INTR (maskable) requests
- raise an interrupt using a wire on the INTR pin and, like previously, analyse the CPUs behaviour step by step
- add an I/O address decoder using 74138 chip which allows us to connect 8 different I/O devices
- add a Text LCD as our first device in the I/O address space, including logic required to access it from the CPU
- programme a set of functions to talk to the LCD and test it by running the computer step by step
- replace the manual clock with the proper crystal square wave generator using the Intel 8284 chip
- test the whole computer and the LCD again - this time by using high frequency clock generator
Visit my webpage slador.uk/ to find the list of all my videos and all the supporting materials.
You can find there schematics of this computer at every stage of building it during the videos as well as the source code of all the programmes I write for this series.
slador.uk/
Негізгі бет Ғылым және технология More interrupts, clock generator and LCD - Building a 16-bit Intel x86 breadboard computer [part 4]
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