digitallkp.blogg.se - Pcb design checklist

N-Ch MOSFETs have their SOURCE connected to the low-side voltage (e.g.

P-Ch MOSFETs have their SOURCE connected to the high-side voltage (e.g.

Make sure variable labelling is consistent. Use Beta Solutions libraries and add to it.

Do not rely on standard Altium libraries (pinouts and footprints can be wrong).

I2C have pull-up resistors (unless they are already internal to a device).

USB data lines D+ and D- have 39R series resistors.

UART/RS-232 RX and TX swap between devices.

Voltage difference problems between ICs that communicate and run of different voltage supplies is considered.

Programming pins connected correctly and routed to appropriate header/connector.

Priority crossbar functions in correct order (applicable to Si micros).

Core power/decoupling supplied (if applicable).

Crystal/oscillator is connected to compatible osc ports (e.g.