Discussion
Put the steps of bringing up a new custom board in order.
1. Program a simple blinking output 2. Check the supply rails with the processor unfitted or held in reset 3. Bring up each peripheral in turn 4. Establish a debug connection
Answer: B
Power first, because everything else can destroy the board if a rail is wrong; then the debug connection, which is the tool for everything after; then the simplest possible sign of life; and only then the peripherals one at a time.
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