Today I learned about CPUlator Computer System Simulator while watching Assembly Language Programming with ARM – Full Tutorial for Beginners.
CPUlator Computer System Simulator
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Category Archives: Design
And… here we are
This week what we have all been fearing has happened to me: GitHub Copilot generated code for me which seems to meet all the requirements but which I don’t understand very much at all.
To date GitHub Copilot for me has just been mostly a useful auto-complete tool and it hasn’t given me any code which I didn’t understand. But with this code (to control two different hardware timers/counters on my Arduino) I don’t really understand it at all. I have passing familiarity with some of the registers used because I saw them named in the datasheet (which I have only skimmed so far) but basically I don’t understand how this works.
It is tempting to ignore the fact that I don’t fully understand and move on, but there’s a part of me which wants to return to the datasheet so I can understand what every assignment GitHub Copilot offered actually does and what every value it calculated implies. Is that the best use of my time?
Embedded Systems with ARM Cortex-M Microcontrollers in Assembly Language and C
Today I learned about Embedded Systems with ARM Cortex-M Microcontrollers in Assembly Language and C (Fourth Edition) by Yifeng Zhu while watching Lecture 9: Interrupts on YouTube. The full list of associated lectures are here: Short Lectures.
LTspice tutorial – EP4 How to import libraries and component models
I learned a lot today in this video: LTspice tutorial – EP4 How to import libraries and component models.
Undocumented LTspice
Today I discovered Undocumented LTspice while reading Introduction to LTspice – MIT (PDF).
SparkFun ATTiny85 Quick Reference
Today I happened upon this ATTiny85 Quick Reference.
Learning LTspice
ChatGPT4 calculating resistance values
I just wanted this on record to show how insanely good ChatGPT4 is:
Gah!
I am way behind on my videos for In The Lab With Jay Jay, but it’s not for lack of trying! I’ve recorded the video for project 9 of the Maxitronix 20in1 something like five times now, but I still can’t release it because the circuit will not work as advertised. It’s suppose to be a demo of a monostable multivibrator, which is also known as a one-shot multivibrator, but the circuit isn’t working the way that a monostable multivibrator is supposed to work. I’m still in the process of debugging it. I think the problem is a problem with instructions and not my implementation (the instructions are fairly low quality and unreliable in my experience so far), but I haven’t arrived at the bottom of this one yet. I will continue to try and solve this conundrum tomorrow.
The SCSI Bus and IDE Interface: Protocols, Applications and Programming (2nd Edition)
I have this wonderful old book The SCSI Bus and IDE Interface: Protocols, Applications and Programming (2nd Edition). It was published in 1997 but is still available for purchase through Amazon.
The book comes with a floppy disk (that’s right: a floppy disk!). I had to buy a USB floppy disk drive to read it. I have made the content from the disk available in a tarball, here: scsi.tgz.
If you just want to read the files, those are here: