Using the CMD line, the bus could support video cards which accept up to 255 commands. Lines, boxes, whathaveyou may be drawn using the commands, and passing parameters using the DAT 0-7 lines. Perimeters may then be passed. screen captures could...
[That is a really nice CNC. It's not large, but they look well made. Hmm. The axis Y moves like a 3D printer. Perhaps some way covers could be made from upholstery vinyl. On mine, I notice that I spent a lot of time staring on ways and screws...
That's nice of you to say, thank you. Front panel made from 2mm alu plate on my 3020 cnc, using a 2 flute bit and a very slow feed. SD card holder is a microsd to panel cable on a bracket, and power supply is basically a traco psu bolted to a...
Well, do you think it would be practical to implement it on old computers?
Or would it be easier to use a parallel bus?
Apparently, even USB has latency issues( --and there's not locking feature on the 'FN connector : P )...
So, I might point out that for this application:
I2C would be limited because Phillips wanted to sell address of at the highest bidder, and that's all we usually get is a choice between two or three solder blobs.
SPI has some promise, but I...
That looks really cool. The build looks instrument-grade, like it should say NASA somewhere on it.
Were card guides added later? Those connectors look a bit pricey, though.
[I had wanted to create the "Matrix" sequencer as seen in Reason--in...
Hiya, haven't posted for a little while, this hobby been back-burned for a bit, but thought you'd be amused at what I'm trying to do - talking about 1980s connectivity.... Idea is for a modular eurocard sized MIDI controller, breaking out the...
What I wanted was cheap and simple connectivity, additionally:
Have 8 slots
Have decent through-put
Allowing multiple of the same kind of device
Allow slotted device to (at least) request an interrupt state of some kind.
Requiring few support...
If the bus was 8-bit width only, this is what the hosted card connector pins would look like...which would fit on a 34-pin connector, with 4 pins to spare.
I had messed up. (I guess being hit by a car didn't help my cognitive process.)
So, I mixed up the two ideas: what pins would the card use, which will the host use. I had thoughts that any card could the bus equally, but perhaps that would be...
Thank you @jmarsh and @defragster.
Is it that the Teensy follows the Arduino's 8-bit interrupt tradition, whereas it will handle an interrupt, right in the middle of a integer or long transfer, thereby splitting it. I wish there was a global...
There's still the risk of an interrupt happening between those lines, resulting in indeterminable ticks lost. The same sampled value that ends the loop needs to be used as the "begin" value for the next, like so:
static inline void...