#calculating devices

[stone-cold-groove]

Image detail from the IBM System/360 sales brochure - 1964.

[cepheusgalaxy]

Yknow whats a really weird thing. In English, you put decimal numbers after a dot (.), and separate hundreds from thousands with a comma (,), but in Portuguese its the OPPOSITE

In Portuguese, you write "two thousand five hundred" as 2.500, and "two and a half" as 2,5(00), NOT the opposite. You can guess I was very confused when I first saw people using that

[rouge-fauna]

Am I the only one wondering why someone would use ChatGPT as a calculator instead of using an actual calculator for a simple math problem. Like do you need to borrow one of my 8 calculators? Or maybe just use the one on Google or on the phone in your pocket. Like are we really so far gone that not only can we not do simple math in our head, but we can’t even push some buttons and need to ask ai instead…

[piratesexmachine420]

For future reference (my own and others), if your TI SilverLink USB cable stops working and starts showing up as "TUSB3410 Boot Device" or similar under device manager (AKA this issue on TI's help page), this is how you can fix it:

Download the TUSB3x10 EEPROM Burner. This is a Windows-only program, but to my knowledge will work on basically any windows machine from XP on -- so long as it's got USB ports. No clue if it'll work in a VM. (You might want to consult this user's manual.)

Download the SilverLink firmware. I got it from here, and compiled it from their de-compilation. It's just a standard 'make' to build. The output file you're looking for is called "ti_graph_link_silver.eep".

Rename "ti_graph_link_silver.eep" to "ti_graph_link_silver.bin".

Open the TUSB3x10 EEPROM Burner, click on the options dropdown and click "Show the 'Program Full Binary Image' button". (page 7 of the manual).

Select the entry under "Computer" labeled "TUSB3410 EEPROM Burner Instance (1.00)".

Set EEPROM size to "64Kb".

Set "File Path" to point to "ti_graph_link_silver.bin". (The renamed .eep, not the original .bin)

I don't know if the VID, PID, Manufacturer string, Product string and Serial # need to be set manually or not with a 'Full Binary Image' burn. Just to be safe, I set VID to 0451, PID to e001, Manufacturer to "Texas Instruments", Product to "TI-GRAPH LINK USB", and checked "Not Serialized"*.

Click the "Program Full Binary Image" button (yellow triangle with the exclamation point), and proceed with the write.

Unplug and re-plug your cable, and it should show up as a SilverLink again!

Additional notes:

The reason that this happens is because the SilverLink cable (revision b, at least) is based on the TUSB3410 microcontroller. That microcontroller's boot process involves checking for an I2C EEPROM containing program code. If it finds that EEPROM and its contents are properly formatted, it'll copy that code into internal RAM and start executing it. If it can't find the EEPROM, or its contents aren't properly formatted, it'll fall back to looking for boot code over USB. Thus: "TUSB3410 Boot Device". Your cable has, in essence, forgotten who it is and and is begging for you to give it a purpose.

The default page-write buffer size (32 bytes) and I2C bus speed (400 KHz) in the burner app are already correct, so no need to change them.

*I don't remember exactly what the Manufacturer string, Product string, or serial number fields were set to pre-corruption. Likewise, no idea about the advanced descriptor options. If someone wants to send the output of lsusb -v -s [whatever their silverlink's bus/id numbers are], I'd really appreciate it!

You might be able to skip the header rigamarole by taking the ti_graph_link_silver.bin file directly ("directly coming from the compiler") -- but I again I don't know exactly what information is in the .eep file and what isn't. Are the PID and VID encoded somewhere in there? I peeked with a hex editor but have no clue. If someone has hardware lying around they're willing to experiment with/potentially brick, I'd love to hear your results!

If you mess up and accidentally forget to do a "Full Binary Image" write, or otherwise brick the firmware, you can force the TUSB3410 to fall back to USB boot mode by opening the plastic shell around the PCB (one Torx screw under the sticker, then just normal plastic tabs) and shorting the right-bottom (Vss) and right-top (SDA), or right-bottom (Vss) and center right-top (SCL) pins of the EEPROM (the chip labeled "24LC64") as you plug it into the USB port. You may need multiple attempts. This works because it temporarily convinces the TUSB3410 that the EEPROM is missing/corrupt, and thus it decides to fall back into USB boot mode -- until you reset it. It might be better to do this with a ~1k resistor instead of a jumper wire, but IDK I'm not an electrical engineer. All I know is that shorting Vss and SDA worked for me. Again, would love feedback.

No clue what causes the corruption in the first place, or how long this fix will last. It might be because the EEPROM's write protect pin is set to "write enable"? It could also just be degrading hardware, for all I know, so no idea how long the fix will last. All I do know is that everything seems nominal right now (immediately after performing this procedure).

[handsome-kakigori]

Chat, i have lost my pencil and now i have to draw using my fingers haiyaaaa

Fs in the chat for me, pray that i can finish my current c0mms faster to open more slots so that i can cover the costs ����

[e-harmacist]

I need that vid with the orange cat almost covered in food inside a bucket with the caption it was like "His greed will consume him" bc I need to show my boss

[hottopic-wannabe]

There's 1 thing about ao3 that people don't talk about enough: you can open that site on literally anything and it will work like wonders (unlike wattpad)

Observe

[watermel0ns-dumb-cringe]

My take on Jane downed a bottle of hot sauce once just to test if she could taste/drink/eat anything

This did not work and she was later found under a table with her head sitting in front of her as she was trying to clean some blood & hot sauce off of what remains of her neck (ow💀)

[nightmaretour]

I was always bad at math (I was supposed to be tested for dyscalculia when I was 12 but it kinda just never happened) but I severely underestimated just how much worse I could get now that I'm on enough pain meds that it could actually literally kill someone if they started taking it without titrating up properly

[istherewifiinhell]

Weather talk made me pull one of these up and im now calling it the:

international chart of friendship

[ID: A celsius fahrenheit conversion chart that list positive integer fahrenheit temps into their decimal celsius temps up to 130f [54.4c] by tens from 140f [60c] to 200f [96.7c] and higher numbers in fifties and hundreds. END]

Pdf for c integer to f decimal here

Pdf for f interger to c decimal here

[zdt2guiezz]

https://www.futureelectronics.com/p/electromechanical--timing-devices--crystals/ecs-250-18-5px-ckm-tr-ecs-inc.-4171530

Watch crystal, Quartz crystal oscillator, Voltage signal, quartz resonator

CSM-7X Series 7.3728 MHz ±30 ppm 20 pF -10 to +70 °C SMT Quartz Crystal

[stone-cold-groove]

Rhonda tweaking the dials on an IBM System/360 - 1966.

[irishguards]

Parallel identical calculations or logic are redundant and essentially unnecessary because one calculator or logic crystal could feed to multiple devices rather than duplicating calculations at large numbers

reblog if your name isn't Amanda.

2,121,566 people are not Amanda and counting!

We’ll find you Amanda.

[zoeythebee]

Very impressed with how every steam update makes it worse

[hvac-eng]

Refrigeration Evaporator Sizing and Selection

The evaporator is a critical component in any refrigeration system, serving as the heart of the cooling process. Proper sizing and selection of evaporators directly impacts system efficiency, operating costs, and cooling performance. This report examines the methodical approach to evaporator sizing and selection, combining engineering principles with practical considerations for optimal system…

[trembling-amber]

Currently Branson and his research assistants (the numismatrix and the struggling artist lmfao) and also the shifty student are studying a Highly Illegal Device. I like to imagine that everytime someone comes into the laboratory they immediatley scramble to cover up the device with a blanket or something. Yep. Totally nothing illegal going on here.