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Communication Guides

Engineering guides for serial interface timing, baud rate, pull-up resistance, bus capacitance, cable length, termination, throughput, latency, and communication link margins.

8 available guides

Guide Articles

GuideAvailable

Measuring Network Goodput and Latency: Payload, Clocks, and Tail Delay

Measure unique delivered payload and response delay with defined intervals, synchronized clocks, loss, and tail-latency reporting.

Category
Communication
Reading time
10 min
Difficulty
Intermediate
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GuideAvailable

RS-232 Cable Design: Capacitance, Edge Timing, Grounding, and Validation

Screen RS-232 cable capacitance and length, then verify loaded receiver swing, UART timing, ground reference, and installed-link errors.

Category
Communication
Reading time
17 min
Difficulty
Intermediate
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GuideAvailable

I²C Bus Design: Pull-Up Window, Capacitance, Clock Stretching, and Validation

Design an I²C bus with feasible pull-up values, full installed capacitance, translated logic levels, clock stretching, and measured timing.

Category
Communication
Reading time
18 min
Difficulty
Intermediate
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GuideAvailable

SPI Timing Budget: Clock, Data, Chip Select, and Board-Level Verification

Close SPI MOSI, MISO, and chip-select timing using clock edges, setup and hold, return flight time, transaction overhead, and board measurement.

Category
Communication
Reading time
18 min
Difficulty
Intermediate
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GuideAvailable

RS-485 Bus Design: Termination, Fail-Safe Bias, Stubs, and Validation

Design and verify an RS-485 trunk with end termination, idle bias, short stubs, common-mode margin, and installed-cable testing.

Category
Communication
Reading time
18 min
Difficulty
Intermediate
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GuideAvailable

UART and CAN Timing: Clock Error, Sampling, Bit Segments, and Propagation

Design UART and CAN timing with endpoint clock error, sampling margin, CAN time quanta, bit segments, SJW, and physical propagation-delay budgets.

Category
Communication
Reading time
20 min
Difficulty
Intermediate
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GuideAvailable

Communication Link Throughput, Latency, USB, and PoE Power Budgeting

Budget payload throughput, end-to-end latency, USB delivery, and PoE power without confusing protocol efficiency and electrical efficiency.

Category
Communication
Reading time
20 min
Difficulty
Intermediate
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GuideAvailable

Serial Interface Timing, Pull-Ups, Termination, and Cabling Guide

Learn serial interface timing, baud rate, bit time, frame overhead, I2C pull-ups, SPI clocking, CAN bus load, RS-232 cable length, RS-485 termination, throughput, and latency checks.

Category
Communication
Reading time
19 min
Difficulty
Intermediate
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