Aboard my car I design-in circuitry between the Supply and the PIC so that the PICs supply is clean. I ensure the raw supply tracks and components are away from the clean-side tracks and components. I ensure the PCB is well designed to absorb induced transients harmlessly. I ensure all I/O's (Analogue or Digital) that go off my PCB are filtered accordingly. But, most importantly, I ensure my public liability insurance is paid-up.
Jacques is a Gaullist... it is well known they prefer Atmel...
I didn't really want to mention it but... recent Reuters photograph shows rioting in Paris street after PIC controlled model airplane slams into street toilet on Rue de Sevres... Journal Le Monde quotes "the devastating methane explosion scattered toilet paper across a wide area and flash-backed down the sewers starting fires in several city suburbs"... see... it's all caused by bad PSU design.
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