Possums, Trains, and Automobiles (1987) ****

Give me a possum, Vasili. One possum only, please.

It's raining possums! Hallelujah! It's raining possums! Amen!

The circle of life

I think we are going to need a bigger possum.

It's a death trap, it's a suicide rap We gotta get out while we're young 'Cause possums like us, baby we were born to run

The Alan Possums Project

My milkshake brings all the possums to the yard.

AAAAAAAAAAAAAAAAAAAAAAAAAAAwoo Possums of London again

Ceiling possum is watching you.

Send possums, guns and money.

Small 16 bit LFSR PRNG. Had to use 6 mil traces and 12 mil drills on this.

Small 16 bit counter and oscillator

Simpler code using signed integers. This can also be done with unsigned integers by checking for underflow rather than comparing to zero.

This code approximates Pi using only unsigned integer addition and subtraction. Posting without explanation (for now) for those who like puzzles.

Nobody expects the Possum Inquisition!

Assume a spherical possum of uniform density.

"trolling"

Added another EPROM to the DDS to extend the resolution by two more decimal digits. Resolution is now 1 Hz. Range is 1 Hz to 1,599,999 Hz.

Added a second EPROM to the DDS for two more decimal digits of resolution. The EPROM does BCD to binary conversion and 7 bit binary addition mod 100 with carry output. Frequency range is now 100 Hz to 1,599,900 Hz in 100 Hz steps.

Direct digital synthesis (DDS) using an EPROM for adder (9 bit mod 500), BCD to binary conversion, and sine LUT. 10 kHz to 1590 kHz in 10 kHz steps.

This is worth watching. What is happening is serious and it has real consequences for so many people. youtu.be/XzX0hSW3W4g?...

Spot the design error in the R2R DACs...

Custom firmware development has begun. [Multiplex Royal 72 MHz radio control transmitter]

OK. It's done now. For real this time. Sent to fab. The waiting begins.

Finally done with this. Have to stare at it a bit more before sending to fab.