28 lines
895 B
Markdown
28 lines
895 B
Markdown
|
Copyright 2023 (C) Peter McGoron.
|
||
|
|
|
||
|
|
This file is a part of Upsilon, a free and open source software project.
|
||
|
|
For license terms, refer to the files in `doc/copying` in the Upsilon
|
||
|
|
source distribution.
|
||
|
|
|
||
|
|
__________________________________________________________________________
|
||
|
|
|
||
|
|
* The control loop is inflexible and poorly documented.
|
||
|
|
* Waveform modules might be necessary but are untested.
|
||
|
|
|
||
|
|
# Coptic: Upsilon 2.0
|
||
|
|
|
||
|
|
Coptic is an improved architecture for Upsilon.
|
||
|
|
|
||
|
|
Coptic would have multiple RV32EM CPUs (configurable at build time) that
|
||
|
|
run independently of the main Linux CPU. Along with the main RAM segment
|
||
|
|
the Linux CPU can access block RAM segments which run independently of
|
||
|
|
system RAM.
|
||
|
|
|
||
|
|
The Linux CPU can
|
||
|
|
|
||
|
|
* Allocate main RAM segments to a CPU for rw access
|
||
|
|
* Allocate entire BRAM blocks to a CPU
|
||
|
|
* Receive interrupts from CPUs
|
||
|
|
* Send interrupts to CPUs
|
||
|
|
* Start CPUs, halt CPUs, reset CPUs
|