Is there any wikipedia page or smt like that? On youtube i only found tutorials from D.A.R.K. but i feel he dosent understand what is he talking about.
Got an idea for a cool project but I can't figure out if this is possible or not. Of course it seems like it IS technically feasible - see services like Skype or Google Voice. Any ideas?
Hi Folks,
Played with code for a while, usually copy and pasting bits and making other peoples projects.
I have a complete lack of the fundamental understanding of C programming. Every course i find that's learning code specific to what i want to do has the prerequisite of 'Basic C Programming Knowledge"
SO, i get to my question:
Any recommended 'Basic C Programming' Courses. I trawl YouTube but i don't know what i'm looking at.
Are there any that people on here have used and recommend?
Happy New Year
I am a high school student trying to self-teach myself electronics. I have learned about logic gates and shift registers, and that an EEPROM is basically a way to store specific logic into a chip so you don't need a ton of logic gates.
After that, it seems to fall apart. Couldn't an EEPROM basically function as a microprocessor? You load a program into its addresses and at that point its the same as a microprocessor? How is an FPGA different from an EEPROM? Dont they both just store "answers" to different logic?
Is a microprocessor a CPU or are they distinctly different?
When did computers go from the black looking boxes with little pins on the sides (MOS 6502 for example) to the the silver looking squares with hundreds of gold pins on the underside (Intel Core I5 for example)?
When I see the internals of a computer such as the Commodore 64, the microprocessor is on a sheet of silicon with lots of little gold lines connecting to other components . Yet I see enthusiasts on YouTube drop microprocessors into a breadboard. Are microprocessors soldered onto the silicon or are they completely removable?
Where can I learn more about commercially available microprocessors for hobbyist?
What's the best way to contextualize the power of microprocessors in a tangible way? With modern CPUs, it's pretty easy. Celerons are super low budget, low power. Pentiums are the next step up. Then there's the Core series or their AMD Ryzen peers. With microprocessors, it's harder to think about them in a tangible way since I don't know too much about the needs of the 1980s home computing market. With the 6502, I think NES graphics. With 16-bit microprocessors, I think SNES graphics. With 32-bit processors, I think of very crude 3D graphics or crazy programming tricks to make pseudo 3D graphics.
Sorry if I sound like a retarded five year old with the way I ask these questions. I'm just trying to have fun learning more about computer hardware. It's cool seeing how all these 80s era computers ran on Assembly. It's like the point where software and hardware merge since Assembly is basically just programming what the computer does at the microprocessor level.
Hello all!
I hope this is a good place to ask this, I'm not quite sure how much this sub enjoys hardware questions! Apologies if not.
I am in the process of designing a multi effect unit for guitar. Originally, I was planning on using the stm32f722 processor, however due to the chip shortages I am unable to source the part. The good news is that stm chips are extraordinarily cross compatible, so I found another option, stm32f412. While this would work with my current hardware design, it would be a downgrade from Cortex M7 to M4, 216Mhz to 100Mhz respectively. Memory is not an issue since I will use an external chip.
I am not planning on implementing any insane dsp algorithms, mostly just effects a guitarist would like. I would hate to redesign the project with a different processor line only to stay with an M7 (I would prefer to stay with an stm32), so my question is:
How drastic is the performance difference between Cortex M7 and M4 processors in regards to audio dsp?
I will more than likely go with the M4 since I can always upgrade the design later, but I would like a second opinion before I submit the gerbers :D Cheers
I'm starting a rather odd project. I'm hoping to build an FPGA-based VGA solution to connect to a 6502 microprocessor, so that the 6502 can output to VGA. As I'm getting into this, I would be interested in anyone's input/guidance. I've posted more details here. I plan to use an Arty A7. The first two questions I have:
- Are there any good resources, recommendations, or suggested starting points for utilizing DDR3 RAM on the Arty (from VHDL and/or MicroBlaze)?
- Are there MicroBlaze examples for VGA output available anywhere, and possibly a foundational text and graphics library?
Thanks!
Update: I now have the VGA output working, driven by MicroBlaze C code, running at 800x600 @ 60 Hz. https://youtu.be/bWGhbYz6D7A 🙂
Update2: I posted a walkthrough of getting this working.
Odd question, sure, we all know that time is a thing and we measure it in seconds and days and years.
But is there a base unit? Like frames or GPU cycles? Basically, unit of reality that you can't divide down anymore? For a processor, a tick/cycle is minimum possible unit of "stuff happening" - or billion times per second for 1GHz.
Is there an equivalent for world, too?
So there are several vendors that implements 8-bit uC like 8051 as SOC. And there are some news that it is going strong etc, etc. My question is, as far as I know, 32 bit processor like Cortex-M33, or anything like that can do whatever 8051 is able to do.
So I'm not sure what really drives 8-bit uC to still have that competitive edge, is it the price? is it the energy consumption?
will it be doable along side data structure and intro to comp org?
I'm looking for some guidance for a project I have that requires reverse engineering a device's firmware code. My professional experience is in chemistry, not coding, so I'd really appreciate any help or direction.
To describe the project: this master device uses multiple replaceable and consumable components that each have a Dallas DS24B33 EEPROM memory chip embedded in them. The EEPROM chip contains data such as serial number, number of uses, hours of operation, etc. which is read by the master device to track the usage of the consumable components. The device won't work without a recognized chip. My desire is to be able to use non-OEM consumable components and program new DS24B33 chips with valid data that can be read by the master device.
So far I've been able to read the DS24B33 chips with the Maxim one-wire viewer program to read the raw hexadecimal values. These do not translate directly to legible ASCII characters. I assume the master device performs a CRC function using the unique registration number on each DS24B33 chip since up to 6 devices exist on the master device's one-wire bus simultaneously.
To determine the CRC function, I was told I need to read the devices firmware code to determine how the CRC is being performed so I can reverse it when programming new non-OEM DS24B33 chips. I have the firmware file, which is in Motorola S-record .hex format. The processor of the device is a Motorola MC68332ACAG16 microprocessor.
I was able to use the IDA-PRO free trial software to disassemble the S-record firmware file into the assembly file, but this is where I've hit a road block. I believe I need to decompile the assembly file, however this function is not built into the IDA-PRO trial package, and I don't have the resources to purchase the full Hex-Rays decompiler, especially since I'm not sure that will even solve my original problem of reverse engineering the CRC function on the DS24B33 chips.
As I said, any help is greatly appreciated and I'm happy to share any needed information.
The main aim of this project is to design a Traffic light controller using 8085 microprocessor, interfacing with peripheral device 8085, and program implementing the process.
Amd psp is an abbreviation for (Platform Security Processor). I don't want to explain what it is or what or does, cause i'll 100% get something wrong (you can google about it if you are curious about it) . I found this reddit post regarding this subject, i can only gather from this that all of the new cpu's has psp, and that there is a possibility that Zen 2 model could disable psp. I also found some other internet sources, but all of them seem vague to me. I'd like to know specifically from which model amd started to ingratiate psp, or have a list to check which amd models have psp.
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