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Topic: what does RESET actually do (Read 483 times) previous topic - next topic

mmcp42

ok background
I have my own 'duino clone
all seems to work fine
loaded blink sketch
LED blinks
so far so good

the sketch starts by setting the LED on for 1 second in setup()
then sends SOS in morse code
ok it's silly but that isn't the question

when I hit the reset button (which hold RESET signal low)
I get a couple of flashes on the LED, then 1 second on, then morse code sequence starts

is this expected behaviour?

(well I didn't expect it!)
there are only 10 types of people
them that understands binary
and them that doesn't

Coding Badly

Maybe.  If the processor has a bootloader installed.

mmcp42

it thinks it's a UNO - does that make a difference?

I have seen that various boot loaders are available - how do you tell which one you have?
there are only 10 types of people
them that understands binary
and them that doesn't

spycatcher2k

Hi Mike - Yip, if you got a boot-loaded chip - Its just a 'Hello, I'm working' flash from the boot-loader - After a second of not getting relevant data on the UART/SERIAL port at runs the installed sketch.

Drew
Drew.
http://www.uk-pcb.co.uk - My UK Based PCB Fab & Assembly Company
Design work undertaken
SMD & Thru-Hole assembly

mmcp42

phew - that's a relief!

it looked like it was running the "S" part of my morse code sketch - bizarre I thought

now I know - cheers Drew & CodingBadly
there are only 10 types of people
them that understands binary
and them that doesn't

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