Why does someone want to build it’s own PDP-11. This chapter has a little bit of background information, tells the story about the system and other trivia
Read moreThe PDP-11/Hack is a self built PDP-11 using the DCJ11, a single chip implementation of a PDP-11. The system consists of Custom System Bus, CPU with Memory, Multifunction Board and a Disk controller
Read moreThe following blog describes the overall architecture and the design principles I used to build the system
Read moreThe PDP-11/Hack uses a passive backplane as system bus. It uses Euro-CardEurocrat DIN 41612 connectors and is based on the ECB bus
Read moreThe heart of the system is the CPU board. In order to get the best performance the CPU board includes all the main memory and the system control logic.
Read moreA multifunction board combines several options on a single board and was very common for small PDP-11 systems. This is the second version of the multi-fucntion board I designed for my PDP-11/Hack which has more features than the first version
Read moreFor a fully functional PDP-11 system we need a disk drive. For the PDP-11/Hack I decided to build a complete RLV12 emulation as a disk controller including 4 RL01/02 units.
Read moreAfter creating the RLV12 Emulator V2.0 for the Q-Bus I decided to build as well a new RLV12 Emulator for the PDP‑11/Hack. It also features the break-out board interface and fixes the missing decoupling capacitors and it was built with universal disk controller emulation in mind.
Read moreThe KDJ11-E had a built-in RTC using the DS1215 phantom clock chip. So I added one to my multifunction board. Now I wanted to make it available to the OS without proprietary program
Read moreTo make a long story short, after learning about the new Microchip AVR Family AVR128 I decided to make a fresh start. So this is about the newest version of a harddisk controller emulator for the PDP‑11/Hack that will replace all other harddisk emulators done so far
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