PIC 12F509 begins to heat at power up

[Acetronics2]

Hi,

I got such a surprise , years ago with a 16C84 ... ( Andeas Voggender R/C Esc , showns in Elektor Magazine - project 960095-11 ).

While receiving too much glitches, the PIC begins to heat ... one and only solution : power OFF !!!

No overloaded output ...

Back to the " constructive " side ... you must take great care to the config sequence of your PIC, and especially to the reset circuitry.

When the device starts normal operation (exits the
reset condition), device operating parameters (voltage,
frequency, temperature, ...) must be met to ensure
operation. If these conditions are not met, the device
must be held in reset until the operating parameters are
met

these lines are "not so innocent" ...

see Datasheet related pages for that ...

Alain

PS : could you join the " faulty " program ???