Swap MCU to debug I2C bus, uncovers hidden firmware bug
Tactics · dev.to · stat: 6/6 Aliaksandr Liapin details a hardware debugging tactic: swapping the microcontroller unit. After a week of failed I2C troubleshooting on an nRF52840-DK, moving the…
Tactics · dev.to · stat: 6/6
Aliaksandr Liapin details a hardware debugging tactic: swapping the microcontroller unit. After a week of failed I2C troubleshooting on an nRF52840-DK, moving the peripheral to a NUCLEO board immediately detected 6 devices. This exposed a deeper firmware bug, not a hardware fault, after six prior scans showed zero.
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