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The Sensor Is Fine. The Board Cannot Understand It
Decode captured waveforms yourself to find the fault
중급 · Lessons 12 · Lab 2
Start the lab
Curriculum
From Waveform to Bits
There Are No Bits Inside the File
reading
Quiz: From Waveform to Bits
quiz
Serial Without a Clock — UART
The Characters Arrive, but I Cannot Read Them
reading
Recovering the Baud Rate from Garbled Characters
lab
Quiz: Serial Without a Clock — UART
quiz
Many Devices on Two Wires — I2C
That One Line — The Device Is Not Responding
reading
Quiz: Many Devices on Two Wires — I2C
quiz
SPI, Where the Clock Comes Along
The Wiring Is Right, but the Value Is Twice as Large
reading
Quiz: SPI, Where the Clock Comes Along
quiz
A Capture With No Name
The Capture File With No Label
reading
I Do Not Even Know Which Bus This File Is
lab
Quiz: A Capture With No Name
quiz
Reference docs
NXP UM10204 — I2C-bus specification and user manual
TI SBAA565 — A Basic Guide to I2C
TI SLVA704 — Understanding the I2C Bus
TI SPRUGP2 — KeyStone Architecture SPI User Guide
sigrok — Protocol decoder: UART
sigrok — Protocol decoder: SPI