The response from the micro should be pretty fast, its running at a baudrate of 115200, meaning the whole 512 kb file should in theory take just over 30 seconds to complete, at the moment it is more than double that, at 80 seconds.
You missed a couple things:
- In serial communications, every byte is preceded by at least a start bit and a stop bit, other settings like parity can add other delay. This make at least 10 bits for a byte transmitted, this make sending 512kB just under 45 secondes at 100% efficient.
- Any operation like reading the 512kB from storage will add delay.
- Any one serious with serial communication, for such a file, will encapsulate the data within a communication protocol to ensure data is not corrupted on the other side. This imply mode data to transmit and some time to ensure data integrity.
So 80 secondes is not that bad.
“Everything should be made as simple as possible, but no simpler.” Albert Einstein
I have an OV2710 based USB camera (a low-light, as it should go inside a closed box). It is a UVC camera so no need for driver...
Connected the camera to a Win10 laptop - disturbing green shaded image (not fatal but all white/light colors are get greenish)
Connected to a Fedore 31 desktop - same...
Connected to a RPi 2/3/4 using a touchscreen - got a green-only shaded image... The image is clear and fast but green-only...
Anyone has experience with these kind of cameras? I just want to know if there is a way to fix that or should start to search for other camera (any suggestion to that direction is also welcome)..
"The only place where Success comes before Work is in the dictionary." Vidal Sassoon, 1928 - 2012
I have a new PC, only a few months old. HP Envy Desktop 795 64bit running Windows 10 Pro.
Within the past month or so I am noticing what I can only describe seems to be USB interruptions. Every few minutes the Mouse and Keyboard 'freeze' up. If I'm watching a video it pauses for a second. It happens 2 or 3 times over a few seconds, then doesn't happen again for a dew minutes.
I'm not a hardware guy so I'm in the dark on this. I can provide any additional info if needed.
If it's not broken, fix it until it is.
Everything makes sense in someone's mind.
Ya can't fix stupid.
There has been a requirement to use Gemalto PC PIN Pad device in unsecured mode, Secure Pin Entry (SPE) not active. We have been trying our best to search online for any hint but unfortunately no luck yet. We can't contact Gemalto support because of no formal purchase of device yet (we are in R&D/evaluation phase) as Gemalto is requesting device information formally.
Any hint would be greatly appreciated.
UnTil You Inspire!
Some PCIe devices cannot read more than 4 GB of address space without an additional driver or modified driver. In such cases, what limits how much memory they can read? Is it the memory controller? Is it the firmware of the PCIe device? Or is it something else? I don't think it is because of the device driver itself because PCIe devices can read or write to RAM without a driver. Someone said it is a 32-bit vs 64-bit issue but I do not understand why PCIe device can only address 32-bit.
I have purchased an ST8000NM0075 as this drive is compatible with my SAN system. However, this drive shipped with E001 firmware on it and I need it to run the LE OEM firmware from lenovo for this drive to work. I have been unable to find a way to flash the LE firmware onto a drive with E firmware. Is there anything I can do to make this work?
I am looking for ideas or even solutions to access the video or image stream of BOA SPOT cameras from Teledyne DALSA directly for further image processing. Teledyne has a SDK which unfortunately does no support this series of cameras. Only their pre-built software solution gives access but cant be integrated in other programs.
So far I didn't find any SDK or solution which does not rely on theis Sapera SDK (which doesn't support BOA)
Been there, done that. They want to sell (more expensive) cameras which are supported by their SDK, not the other way round. Yet we cant just tell our customers "sorry, got to buy new cameras because the old one is the same but it has no official support"
Good day pals! Please I have been curious about this since I studied Computer Science. How can I build a hardware and control this hardware via my vb.net, c# or c++ application designed by me?
I know this question is vast but I only need guidelines on how to go about it probably the right keywords to use in searching please
The Master said, 'Am I indeed possessed of knowledge? I am not knowing. But if a mean person, who appears quite empty-like, ask anything of me, I set it forth from one end to the other, and exhaust it.'
― Confucian Analects
Sorry, I don't want to use existing board. I want to build my own hardware from scratch. I can build the hardware cos I have knowledge but don't know how to communicate the hardware with software I have designed in any of the language