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Hardware Errata

Programmable Load Controller (New)

This page documents some issues with the hardware. Rev 3 Footprint for RTC backup battery (BT...

Peripheral Allocation

Programmable Load CPU Board

CAN0: Expansion PA22 (TX), PA23 (RX) SERCOM0: I2C, front panel/rear IO (through mux) ...

Front Panel

Programmable Load IO

The front panel features a few buttons, indicators, and a rotary encoder. Overview Note that ...

Rear Panel

Programmable Load IO

On the rear of the device are a few auxiliary connections, including AC power input, communicatio...

DMA Channel Allocations

Programmable Load CPU Board

DMAC should operate with dynamic, round-robin priority arbitration within a DMA priority level. P...

Clocking

Programmable Load CPU Board

Clock Inputs All clocks on the system are derived from one of the following clock inputs (oscill...

Hardware Errata

Programmable Load CPU Board

This page lists some issues with CPU board hardware, as they are discovered, and some workarounds...

Hardware Errata

Programmable Load Load Driver

This page lists some issues with the hardware. Rev 2 Holes for current sense resistors should...

Adjustments

Programmable Load Load Driver

The driver boards need to have done to work. Rev 1 Current driver zero offset Trimmers: RV301,...

Front Panel Errata

Programmable Load IO

Rev 1 Mode/load switches footprints need soldermask pulled back from pads The pads are cove...

Rear IO Errata

Programmable Load IO

Rev 1 Copper rings around USB connector pads should be larger Retention holes for Ethernet ja...

Protocol

Programmable Load Remote Control

This page describes the native communications protocol with the device. It is binary based, with ...

Properties

Programmable Load Remote Control

This page describes the "property request" mechanism, as well as the message format used to inter...

Overview

Programmable Load Controller (New)

This is a new controller board for the programmable load, designed around the STM32MP1 microproce...

Peripherals

Programmable Load Controller (New)

Below are listed the general peripherals used by the controller. These are selected so that they ...

Revisions

68komputer Backplane Management

This page lists any assembly remarks and issues with each revision of the board. Rev 1 5V pow...

6 Slot Backplane

68komputer Backplane

A backplane which supports up to six expansion cards, meant to go into a 3U VME crate. Feature...

Overview

68komputer Backplane Management

Unlike other expansion boards, this one is required to operate the backplane, primarily to power ...

Pinout

68komputer Backplane

Using 96 position (3x32) DIN 41612 connectors; right angle male on expansion cards, vertical fema...

Expansion

68komputer 68000 CPU Board

Peripherals can be connected to the CPU board through the expansion connector, a 96-pin, 3 row DI...