• Intersil IM6100 Intercept junior like

    04/18/2021 at 17:05 • 2 comments

    When I was student in 1979 my solar project need to drive a equatorial parabola.

    I decided to use IM6100 and test application program with an Intercept Junior and TTY.

    In 2018, During dismantling cubicle in a room, I found old boards with IM6100.

    My idea was to retro build a Intercept Jr like board with CPU and other chips.

    After drawing schematic on Eagle, I weld about 900 wires on double side universal board.

    To load program code in EEPROM memory I use Microduino board ATMEGA 1244. `

    For access, DMA pin is activate to allowed Microduino loading 12 bits CPU codes.

    Recently I found Smal8.c source file of PAL III Pdp8 assembler. I adapt application for the board compile and use with Sublimetext3 build menu. perfect !

    So I decide to test RS232 connection and I2C line to drive LCD 20x4.

    http://b.autran.free.fr/videos/IM6100-LD.mov