Sorted by Squirrels.

Tuesday, 21 October 2008

Tier Jerker

The Finished Shield:



40 lines of IO plus a number of the Arduino's lines brought out to header sockets. A couple of status LEDs and we're done. I've taken the PORTC lines, AKA the analog inputs A0-A5 and D2-D7 to the back of the board. As it is, the shield's pass-through connectors are offset by 50 mil, making piggy-back boards impossible to make cleanly out of proto-board. The power lines and D8-D13 have their pass-throughs in place, as they are essential for my MMC sail.


The Linguine Layout:



I love kynar wire! Did I ever mention that?? :D The enamel coated copper wire is great too.


The EEProm Topper:



This is a a scavenged megabit chip. My first application for this board will be to program this. As it slots into the IO card so it will fit into a small adapter board that I have in mind to enable it to emulate a 64k ROM to transfer code to my burner.


The Assembled Wedding Cake:



Silly! But that's what I like about it. An antidote to the misery happening in the world today ;)

Thursday, 9 October 2008

Shields ... On?

Up you blaggard! Up!



No, on second thoughts 'on' is definitely more appropriate in this case. As I mentioned in a previous post I'm crystalising the max expander board. It's about time I ruined my eyes and lungs with some close work.



I'll be putting two of the blighters on this board. Seeing as I'm down there anyway I reasoned that 40 lines is better than 20, what.

I didn't see any sense in making this a fixed purpose board, hence I'm opening up the lines with SIL sockets so further adapters can be inserted. The 1st will be a programmer for some of the megabit EEPROMs that I've salvaged from a couple of P2 motherboards.

This is how we do it

MMC (9) acorn atom (7) zx81 (7) arduino (5) Atari 800 (3) c128 (3) sd card (3) sd2iec (3) sio2sd (3) tatung einstein (3) 6502 (2) Chuckie egg (2) M5 (2) Max6956 (2) QL (2) RCM (2) Sord (2) assembler (2) avr (2) c64 (2) cadsoft eagle (2) eeprom (2) einSDein (2) mmbeeb (2) multi-cart (2) spi (2) system 80 (2) ufat2 (2) vic20 (2) video genie (2) 6502 second processor (1) 6522 (1) 8255 (1) Acorn BBC Micro (1) Apple 2e (1) Apple ][ 2 two (1) BBC 6502 second processor (1) BBC micro (1) DevicePrint (1) Double Choc Chip Muffins (1) FAT (1) IO (1) Jupiter Ace (1) LED (1) Master 128 (1) PCB (1) PIC (1) POV (1) PROGMEM (1) ST (1) Spectrum 128 (1) antex (1) arcade spinner (1) arduino shield (1) atari (1) atmel (1) bakewell tart (1) beer (1) bird's nest (1) bitbucket (1) brokenated XC special (1) cake (1) cassette (1) cassette interface (1) compact flash (1) convert (1) dac (1) de-yellowing (1) eaca (1) efficient (1) einsdein. z80 (1) eye strain (1) failosophy (1) filesystem (1) finally (1) fram (1) french polishing (1) fuse (1) fuses (1) gaming (1) github (1) glue (1) google chrome (1) heroic failure (1) high voltage programming (1) hot irons (1) if (1) jiffydos (1) joey beltram (1) lego robot (1) library (1) lying (1) machine code (1) matron (1) microcode (1) mmc interface (1) mmc2iec (1) mmm (1) mouse guts (1) multicart (1) oscilloscopes (1) pcm (1) pic32mx (1) porn (1) proto shield (1) purple (1) repo (1) retro computer museum (1) retro hard-on (1) rom box (1) sd (1) sd2mmc (1) seadragon (1) silliness (1) small (1) software master (1) soldering (1) sord m5 (1) spi software master (1) stray capacitance (1) string (1) techadventure (1) test equipment porn (1) ts1000 (1) turtle cheesecake (1) tweaking (1) vc20 (1) video head (1) video ram replacement (1) weewee (1) wingasm (1) wire library (1) wodges of IO (1) xilinx cpld (1) yellowing (1) zx spectrum (1) zxpander (1)

About Sir Morris

My photo

Loves: Old computers, Old Techno, Old ladies. Cake.
Hates: New computers.

Unless otherwise stated all of the original work presented here is:

Creative Commons License
Licensed under a Creative Commons Attribution-Noncommercial 2.5 Generic License.

The work of others where referenced will be attributed appropriately. If I've failed to do this please let me know.