Questions tagged [protocol]
A protocol is a ruleset for formatting and exchanging messages.
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Origin and underlying sense of the term "Posted" in PCIe
When PCI Express replaced the operation of reading directly from a PCI peripheral card over a bus, directly addressing its I/O ports, or performing a configuration cycle on it directly, with instead a ...
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The maximum distance supported between two nodes in an ESP32 based mesh network
What is the maximum distance supported between two nodes in a network implemented using the ESP-WIFI-MESH protocol developed by Espressif Systems for their ESP32 modules? The documentation mentions ...
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Help identifying protocol for Midea AC daughter PCB communication
I have a basic Midea AC unit that lacks Wi-Fi connectivity, and I'm interested in making it smart. It consists of a main PCB, which I prefer not to tamper with, and a smaller daughter PCB responsible ...
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How to identify protocol of unknown 7 segment display chip?
I'm trying out logic analyser with digital clock I have laying around. The clock uses 7 segment display (4 digits) and consists of two parts: display with unknown chip inside and main board with two ...
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Best protocol for daisy chain communication between many small microcontrollers
I'm working on a project where I'd like a large number of small microcontrollers (100+, something like an 8-bit PIC, but flexible on what I use) to each perform audio synthesis behavior defined by an ...
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Data transmission protocol with two lines and no explicit clock
Are there communication protocols that transmit bits using two lines A and B as follows:
When line A is toggled, a 0 is sent.
When line B is toggled, a 1 is sent.
I currently use this to push out ...
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CAN protocol how to make use of candump utility
Can anyone help me out how to use -r parameter in the candump utility?
-r (set socket receive buffer to size)
Wanted to verify: Configurable receive buffer feature.
I verified the above as follows:
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6GHz GMSL2 signal over UTP, calculating insertion loss over cables
I'm doing some research into having CSI cameras at a distance of around 3m from a computer and am thinking of using a CSI to GMSL2 serializer deserializer pair, in particular, the MAX96724 and ...
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Replacement of an encoder with strobe/CS line by a standard SSI encoder
The encoder is operated by a Beckhoff KL5001 unit, part of a larger control system with few documentation available. The strobe/CS signal is generated elsewhere in the system. I am wondering what ...
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Synchronization of handshake channel with different clock domains
My course on design of digital systems uses the book "Introduction to Asynchronous Circuit Design" by Jens Sparsø.
On page 156 he talks about synchronizing a handshake protocol between a ...
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USB peripheral not responding to SETUP packets
I'm writing some Verilog on a Spartan S7-50 FPGA to control a MAX3421E (datasheet) over SPI. I've gotten everything working with setting up the chip (full-duplex, Vbus, connection detection, host mode)...
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MOSI signal losing bandwidth in SPI communication
I am testing the SPI MOSI signal for signal integrity. The length of the PCB trace is 207 mm. Unfortunately, the signal is curved at the rising edge of the cycle. The frequency is 1Mhz. I think it is ...
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What Interface is my LCD display using?
My Tektronix TDS 2024's 5.7” STN display (320x200, color) needs replacing. Instead using the same expensive, hard-to-find, obsolete one, it would be a good opportunity to upgrade to a more modern ...
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What Communications Technology is used in Car Reverse Cameras?
What communications technology is typically used in car reverse cameras? Analogue or digital, and what protocol? How is the data typically read into the MCU/MPU - via CSI or some other protocol?
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What is the communication protocol used by non-expansion card USB ports to communicate with CPU?
USB ports can come as expansion cards, like this:
Now obviously, since this is a PCIe USB card, the communication protocol used by this expansion card to communicate with CPU is PCIe.
But what about ...
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