15 October 2022 - 21 October 2022

1. MIT OCW
- 1.1. 18.02 - Multiple Variable Calculus
  - 1.1.1. Practice Exam 4 (con't.), session 97-98
2. Emergency Crystal Radio
- 2.1. Done.
  - 2.1.1. Gets only KSCO in SCZ.
  - 2.1.2. Gets only KLOK in SJ.
3. Mill Controller #2
- 3.1. Repurpose 'boss' hard drive
- 3.2. Need to investigate new HW/SW for eventual replacements
  - 3.2.1. Old crap ain't gonna last forever
  - 3.2.2. Buildroot/Linux 5.15 PREEMPT + latency tools
4. Alum Rock Data Center
- 4.1. Using CentOS 7 for now - good until 2024?
- 4.2. need to check alma, rocky, others? for suitability
5. OLPC
- 5.1. Needs ML1120 coin batteries to fix "invalid system date".
6. Virtual Orchestra
- 6.1. sfz file tests
  - 6.1.1. need tooling to edit sample files
- 6.2. increasingly skeptical whether quality results are possible
7. gat
- 7.1. spectrogram done - matches 'octave' output
8. marble computing
- 8.1. Programmable Marble Gate Array
9. small graphics display
10. mcd05 32 button/led box
11. More project ideas
12. David Davies

1. MIT OCW

1.1. 18.02 - Multiple Variable Calculus

1.1.1. Practice Exam 4 (con't.), session 97-98

2. Emergency Crystal Radio

2.1. Done.

2.1.1. Gets only KSCO in SCZ.

2.1.2. Gets only KLOK in SJ.

3. Mill Controller #2

3.1. Repurpose 'boss' hard drive

Start s/w configuration

3.2. Need to investigate new HW/SW for eventual replacements

3.2.1. Old crap ain't gonna last forever

3.2.2. Buildroot/Linux 5.15 PREEMPT + latency tools

First pass done - boots on real hardware

4. Alum Rock Data Center

4.1. Using CentOS 7 for now - good until 2024?

4.2. need to check alma, rocky, others? for suitability

5. OLPC

5.1. Needs ML1120 coin batteries to fix "invalid system date".

6. Virtual Orchestra

6.1. sfz file tests

6.1.1. need tooling to edit sample files

6.2. increasingly skeptical whether quality results are possible

7. gat

7.1. spectrogram done - matches 'octave' output

8. marble computing

8.1. Programmable Marble Gate Array

8.1.1. Platform

Works!

8.1.2. Ball sensor

Received various sensors. Eliminated hall effect sensor.

8.1.3. Display

Pins resoldered. Needs testing.

9. small graphics display

9.1. Use 320x480 OLED display and ESP8266+WiFi

9.2. BWIF (Barely Working Image Format) designed

9.3. pamtobwif/bwiftopam mostly complete

Debugging. Simple uncompressed bitmap works on round-trip PAM comparison test.

10. mcd05 32 button/led box

10.1. Recovered schematics.

10.2. Planning software.

10.3. Received STM32F767 Nucleo144 with Ethernet.

11. More project ideas

11.1. Zuse Z3 simulation in Verilog

Good excuse for floating point ALU design.

11.2. GMPForth ports to simulators

11.2.1. SIMH for some targets (vax)

11.2.2. MAME looks interesting for microprocessor system emulations

How to support erzatz systems?

11.2.3. Ports to classic figFORTH targets

11.3. GMPASM assembler

May be useful for handbuilt and rare systems (DMX1000?).

11.4. Extracting ISO Superboard Forth ROMS for MAME emulation

11.5. 'bwocl' OpenCL tooling

11.5.1. Offline compilation

11.5.2. Standard Kernel Running

11.6. hardware support for classic 5V CPUs

11.6.1. RTX2000, CDP1802 still available!

11.6.2. 6502, 68000, 320C30, others on hand

11.6.3. CPUs with async bus may be supportable without RAM

11.6.4. Use Nucleo w/ 5V tolerant IO as boot loader controller

11.6.5. Could use small foorprint monitor in asm (gmpmon?)

11.6.6. Started planning for 6502.

11.7. Existing 'retro' hardware still working?

11.7.1. OSI Superboard

Unknown. Composite to VGA adapter didn't seem to work. Needs analysis. Found OSI model 610 board underneath!